IllustrationFUEL SMELL COMING FROM LEFT REAR FUEL SENDING UNIT LEAKING
2003 Mercedes Benz E320
Owner reports · Recalls · Investigations
More warning signs than most E320 years
Owner complaints for the 2003 Mercedes Benz E320 are substantially higher than the model-year median of 42.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all E320 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
120–25K
1125–50K
2450–75K
3375–100K
58100–150K
24150K+
162 reports with mileage · 52 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Fuel/propulsion System. Review the 71 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 57 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 21 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
8 crash reports1 fire reports8 injury reports
Fuel/propulsion System complaints
71 reportsTL* THE CONTACT OWNS A 2003 MERCEDES-BENZ E320. THE CONTACT STATED THAT A STRONG FUEL ODOR WAS PRESENT IN AND AROUND THE VEHICLE. THE CONTACT ALSO MENTIONED THAT THE FAILURE OCCURRED WHEN THE VEHICLE WAS FUELED. THE FAILURE WAS PERSISTENT. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (LOKEY MERCEDES-BENZ, 19820 US HWY 19 N, CLEARWATE…
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TL* THE CONTACT OWNS A 2003 MERCEDES-BENZ E320. THE CONTACT STATED THAT A STRONG FUEL ODOR WAS PRESENT IN AND AROUND THE VEHICLE. THE CONTACT ALSO MENTIONED THAT THE FAILURE OCCURRED WHEN THE VEHICLE WAS FUELED. THE FAILURE WAS PERSISTENT. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (LOKEY MERCEDES-BENZ, 19820 US HWY 19 N, CLEARWATER, FL 33764) WHERE IT WAS DIAGNOSED THAT THE FUEL TANK, FUEL LINES, AND EXHAUST SYSTEM FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND INFORMED THE CONTACT THAT THE FUEL TANK AND FUEL LINES WOULD BE COVERED UNDER AN EXTENDED WARRANTY. ANY ADDITIONAL PARTS OR LABOR WOULD BE AT THE CONTACT'S EXPENSE. THE FAILURE MILEAGE WAS APPROXIMATELY 105,000.
MY CAR HAVE A STRONG SMELL A GASOLINE ON THE BACK SEAT EVERY TIME IM REFUELING. SOME TIMES I HAVE TO OPEN ALL THE WINDOWS SO THE SMELL GOES AWAY. AND SOME TIMES A GET THE MESSAGE CHECK FILLER CAP BUT AL READY CHANGE THE FILLER CAP AND THE MESSAGE STILL SOME TIMES APPEAR.
SMELLS GASOLINE WHEN CAR IS PARKED IN GARAGE AND SOMETIMES WHEN DRIVING SMEELS GASOLINE IN CABIN..SRS RESTRAINTS MALFUNCTION LIGHTS KEEPS COMING ON.
TL* THE CONTACT OWNS A 2003 MERCEDES-BENZ E320. AFTER THE VEHICLE WAS REFUELED AND PARKED, AN ABNORMAL FUEL ODOR EMITTED FROM THE REAR OF THE VEHICLE. THE CONTACT STATED THAT THERE WAS NO PHYSICAL EVIDENCE OF A FUEL LEAK OUTSIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE CONTACT WAS INF…
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TL* THE CONTACT OWNS A 2003 MERCEDES-BENZ E320. AFTER THE VEHICLE WAS REFUELED AND PARKED, AN ABNORMAL FUEL ODOR EMITTED FROM THE REAR OF THE VEHICLE. THE CONTACT STATED THAT THERE WAS NO PHYSICAL EVIDENCE OF A FUEL LEAK OUTSIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE FUEL TANK NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 210,618.
AFTER FUEL FILTER REPLACEMENT, VEHICLE OPERATED FINE FOR ABOUT 7 MILES. WHILE IDLING A COUPLE OF MINUTES IN THE DRIVEWAY UPON RETURN FROM THE SHORT TRIP, THE RETURN LINE HOSE EXITING THE FUEL FILTER EXPANDED, RUPTURED, AND SPRAYED FUEL OUT AT A HIGH RATE. AFTER HOSE WAS REPAIRED, FUEL GUSHED OUT OF EVAPORATIVE CANISTER DISCHARGE…
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AFTER FUEL FILTER REPLACEMENT, VEHICLE OPERATED FINE FOR ABOUT 7 MILES. WHILE IDLING A COUPLE OF MINUTES IN THE DRIVEWAY UPON RETURN FROM THE SHORT TRIP, THE RETURN LINE HOSE EXITING THE FUEL FILTER EXPANDED, RUPTURED, AND SPRAYED FUEL OUT AT A HIGH RATE. AFTER HOSE WAS REPAIRED, FUEL GUSHED OUT OF EVAPORATIVE CANISTER DISCHARGE TUBE AND PURGE VALVE CANISTER. VISE GRIPS PLACED ON THE RUBBER TUBE LEADING FROM THE RETURN LINE TO THE CANISTER STOPPED THE GUSHER. NEW FUEL FILTER THAT WAS JUST INSTALLED (PRONTO PF5416) WAS SUSPECTED TO BE DEFECTIVE - CAUSING EXCESSIVE RETURN LINE FUEL VOLUME. WITH THE POOR DESIGN OF THE RETURN LINE PLUMBING AND RESTRICTION BACK TO THE TANK, THE EXCESS VOLUME WAS PILING UP IN THE EVAPORATIVE CANISTER AND OUT THE PURGE VALVE IN A MASSIVE GUSHING LEAK. ONCE A SECOND NEW FUEL FILTER WAS FITTED (PUROLATOR F65416), VEHICLE RAN PROPERLY AGAIN WITHOUT LEAKAGE - HOWEVER, SEVERE LEAKAGE FROM THE TOP OF THE EVAPORATIVE CANISTER WAS NOTED DURING A FILLUP ATTEMPT SHORTLY AFTERWARDS. THIS NEVER OCCURRED IN THE PRIOR TO THE FILTER REPLACEMENT. FROM ALL INDICATIONS, THE DESIGN IS VERY POOR AND SUSCEPTIBLE TO ANY CONDITIONS WHICH RESULT IN EXCESSIVE RETURN LINE FUEL VOLUME. THE AMOUNT OF FUEL POURING OUT OF THE TOP OF THE EVAPORATIVE CANISTER ASSEMBLY AND DISCHARGE WAS INDEED A FIRE AND ENVIRONMENTAL HAZARD - THE EQUIVALENT OF AN OPEN FUEL PUMP OUTPUT DISCHARGE. IN ADDITION TO ALL OF THIS, DURING THE FILTER REPLACEMENT/TESTING PROCESS, LOUD BANGING WAS HEARD FROM THE TANK ITSELF. REMOVAL OF THE GAS CAP RESULTED IN A MASSIVE PRESSURE RELEASE. FROM MY OBSERVATIONS AS A MECHANIC WITH OVER 25 YEARS EXPERIENCE SERVICING FOREIGN CARS, THE VENTILATION AND FUEL PRESSURIZATION SYSTEM ON THIS VEHICLE IS IMPROPERLY DESIGNED AND UNSAFE. VEHICLE WAS ON A LIFT WHILE BEING SERVICED.
RECENTLY ON TODAY 7-12-16 AT 174,000 MILES THE DISPLAY ON MY 2003 E320 4S MERCEDES BENZ ALL OF A SUDDENLY DISPLAYED AN ILLUMINATED MESSAGE IN BRIGHT WHITE : "BRAKE" SERVICE BRAKE VISIT WORKSHOP. MY VEHICLE WAS IN MOTION ON A BUSY MAJOR HIGHWAY WHEN THE HYDRAULIC BRAKE SYSTEM EXHIBITED THIS MESSAGE. SHORTLY PRIOR TO THIS M…
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RECENTLY ON TODAY 7-12-16 AT 174,000 MILES THE DISPLAY ON MY 2003 E320 4S MERCEDES BENZ ALL OF A SUDDENLY DISPLAYED AN ILLUMINATED MESSAGE IN BRIGHT WHITE : "BRAKE" SERVICE BRAKE VISIT WORKSHOP. MY VEHICLE WAS IN MOTION ON A BUSY MAJOR HIGHWAY WHEN THE HYDRAULIC BRAKE SYSTEM EXHIBITED THIS MESSAGE. SHORTLY PRIOR TO THIS MESSAGING, I NOTICE MY BRAKES WERE MORE HARD TO APPLY PRESSURE,. I AM GLAD I WASN'T DRIVING FAST, THIS COULD HAVE BEEN A SERIOUS TRAGEDY TO MYSELF AS WELL AS THOSE OTHERS ON THE EXPRESSWAY JUST A AS I WAS. 2. PROBLEM WITH MY GAS TANK AFTER I FILL THE TANK , THE GAS FUMES BECOME SO INTENSE AFTER PARKING THIS VEHICLE INSIDE MY GARAGE. I DIDN'T KNOW THERE WERE A RECALL. IS THIS FUEL SAFETY HAZARD RECALL STILL IN EFFECT? IF SO, WHOM DO I CONTACT TO HAVE IT REPAIRED AT NO COST TO ME THE OWNER? 3. 4 MONTHS PRIOR IN MARCH 2016 I INCURRED A PROBLEM WITH THE COOLANT FLUID LEAKING INTO THE TRANSMISSION RESULTING IN A MAJOR MONETARY EXPENSE OUT OF MY POCKETS ABOVE $5000. CAN THIS BE COVERED BY THE MANUFACTUER SO I MAY BE ABLE TO BE REIMBURSED?
STRONG GASOLINE SMELL INSIDE CABIN HAS GROWN PROGRESSIVELY WORSE OVER PAST YEAR. NOW IT IS CONSTANT - NOT JUST WHEN THE TANK IS FILLED. HAVE NEVER ADDED MORE GAS AFTER THE NOZZLE SHUTOFF WHEN REFILLING - NEVER TOP OFF THE TANK. I DID NOT RECEIVE A LETTER FROM MB IN JAN 2015 AS OTHER HAVE REPORTED ON INTERNET. I HAVE THE CAR SERV…
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STRONG GASOLINE SMELL INSIDE CABIN HAS GROWN PROGRESSIVELY WORSE OVER PAST YEAR. NOW IT IS CONSTANT - NOT JUST WHEN THE TANK IS FILLED. HAVE NEVER ADDED MORE GAS AFTER THE NOZZLE SHUTOFF WHEN REFILLING - NEVER TOP OFF THE TANK. I DID NOT RECEIVE A LETTER FROM MB IN JAN 2015 AS OTHER HAVE REPORTED ON INTERNET. I HAVE THE CAR SERVICED EXCLUSIVELY AT THE MB DEALERSHIP. THE 2008 FUEL RECALL WAS INSTALLED ABOUT 4 YEARS AGO.
I HAVE OWNED MY 2003 E320 FOR OVER 10 YEARS NOW, HAVING PURCHASED IT AS A CERTIFIED USED VEHICLE WITH APPROXIMATELY 19,000 MILES. EVERYTIME I PARK IT IN MY GARAGE AFTER FILLING UP THE FUEL TANK, MY GARAGE SMELLS OF GASOLINE, EVENTHOUGH THERE HAS NEVER BEEN A VISIBLE LEAK ONTO THE GARAGE FLOOR. RECENTLY AFTER I REFUELED, THE SMEL…
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I HAVE OWNED MY 2003 E320 FOR OVER 10 YEARS NOW, HAVING PURCHASED IT AS A CERTIFIED USED VEHICLE WITH APPROXIMATELY 19,000 MILES. EVERYTIME I PARK IT IN MY GARAGE AFTER FILLING UP THE FUEL TANK, MY GARAGE SMELLS OF GASOLINE, EVENTHOUGH THERE HAS NEVER BEEN A VISIBLE LEAK ONTO THE GARAGE FLOOR. RECENTLY AFTER I REFUELED, THE SMELL WAS NO LONGER JUST OUTSIDE THE VEHICLE, BUT HAD NOW PERMEATED INTO THE CABIN. THESE FUMES HAVE MADE IT IMPOSSIBLE TO DRIVE THE CAR, BECAUSE THEY ARE SO OVERWHELMING.
VEHICLE PRESENTED WITH RED LIGHT INDICATING TO TAKE VEHICLE TO WORKSHOP IN RED. BRAKING WAS EXTREMELY DIFFICULT, SRS SYSTEM STALLED THE VEHICLE, EMERGENCY MODE WAS ACTIVITED,WE WERE UNABLE, AT FIRST TO TURN ON THE IGNITION SWITCH. THE VEHICLE OPERATED AS IF IT WAS PARALYZED. WE FINALLY GOT THE VEHICLE TO RUN AND TURNED VEHICLE…
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VEHICLE PRESENTED WITH RED LIGHT INDICATING TO TAKE VEHICLE TO WORKSHOP IN RED. BRAKING WAS EXTREMELY DIFFICULT, SRS SYSTEM STALLED THE VEHICLE, EMERGENCY MODE WAS ACTIVITED,WE WERE UNABLE, AT FIRST TO TURN ON THE IGNITION SWITCH. THE VEHICLE OPERATED AS IF IT WAS PARALYZED. WE FINALLY GOT THE VEHICLE TO RUN AND TURNED VEHICLE INTO MB DEALERSHIP. WE WERE INFORMED THAT THE SBC UNIT WAS IN NEED OF REPLACEMENT, WE WERE BESET WITH 1,800.00 REPAIR. THE VEHICLE IS VERY DANGEROUS TO DRIVE IF YOU ARE NOT PREPARED FOR LONGER STOPPING DISTANCES, THANKFULLY MY HUSBAND WAS ABLE TO GET THE VEHICLE TO THE DEALERSHIP. I FOUND MYSELF NOT STRONG ENOUGH TO PRESS ON THE BRAKE PEDAL FOR ADEQUATE BRAKING DISTANCE. FUEL: UPON FUELING VEHICLE, THE FUEL HANDLE WILL STOP AND IMMENSE AMOUNTS OF FUEL WILL SPURT OUT FROM FUEL TANK. THERE IS ALSO A SMELL OF GAS/FUEL IN THE CABIN AFTER FILL UP. THIS CREATES A HUGE SPILL AND NOTIFICATION TO ATTENDANT. TAKES UP A GREAT AMOUNT OF TIME TO FILL UP TANK. SURPRISINGLY WE HAVEN'T BEEN CHARGED FOR FUEL SPILLS. SRS: LIGHT ON FOR SAFETY RESPONSE SYSTEM, SHORTLY AFTER VISIT AT MB DEALERSHIP. HAVE NOT TAKEN VEHICLE TO MB DEALERSHIP FOR FEAR OF ANOTHER EXPENSIVE REPAIR.
Official recalls
224V874000 · Visibility:sun/moon Roof Assembly
Nov 19, 2024
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2001-2011 C-Class, CLK, E-Class, and CLS vehicles. Please see the recall report for a complete list of models and model years. The glass sunroof panel may not be properly secured and can detach.
Consequence & remedy
Consequence: A detached sunroof panel can become a road hazard, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the sunroof panel as necessary, free of charge. Owner notification letters were mailed January 10, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of previous NHTSA recall number 22V-954. MBUSA's number for this recall is 2024120001/2/3.
19V918000 · Visibility:sun/moon Roof Assembly
Dec 20, 2019
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2001-2011 vehicles. The bonding between the glass panel and the sliding roof frame may deteriorate, possibly resulting in the glass panel detaching from the vehicle. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V918-4126.pdf
Consequence & remedy
Consequence: A detached glass panel can separate from the vehicle and become a road hazard, increasing the risk of a crash.
Remedy: MBUSA will notify owners, and dealers will inspect the glass panel bonding and replace the sliding roof, as necessary, free of charge. The recall began July 10, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020040011.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1EA13003 · Fuel Leakage From The Fuel Tank
Opened Mar 15, 2013 · Closed Dec 19, 2014
Status: closed (inferred from source dates) · Fuel System, Gasoline; Fuel System, Gasoline:delivery; Fuel System, Gasoline:delivery:fuel Pump; Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings; Fuel System, Gasoline:storage; Fuel System, Gasoline:storage:tank Assembly
The Office of Defects Investigation (ODI) opened this investigation on January 23, 2012 as PE12-001 based on 20 consumer reports in model year (MY) 2003-2006 E55 AMG vehicles.Based on new reports in other E-Class vehicles, ODI upgraded the investigation to Engineering Analysis (EA) 13-003 on March 15, 2013, and expanded the scope to all E-Class vehicles through MY 2008.The complainants alleged a strong odor of gasoline fuel both inside and outside of their vehicle, particularly after refilling the fuel tank.Many of the complainants noted that the odor subsided or went away after driving some distance thereby lowering the fuel level in the tank.Other owners reported they would only fill the tank to about three quarters full to avoid the odor altogether.Some complainants alleged fuel leaked from the fuel filter/sender, located on the top of the fuel tank on the driver's side, and collected on top of the tank.There were also allegations that the fuel leaks were associated with an Emissions Recall Campaign (No. 2008020001) conducted by Mercedes-Benz USA, LLC (Mercedes) in 2008 on MY 2003-2006 E-Class and CLS-Class AMG models.The issue in the recall involved small cracks in the pressurized outlet fitting of the fuel filter/sender.AMG vehicles are high performance models that operate at higher fuel pressure and use a different fuel filter/sender and fuel pump than non-AMG models.Information on Recall No. 2008020001 is available from the U.S. Environmental Protection Agency (EPA) website at www.EPA.gov.ODI's investigation found various leak sources that are unrelated to the outlet fitting cited in the EPA recall campaign.Through interviews with complainants, field inspections of complaint vehicles, and the collection and laboratory analysis of failed parts, three identifiable leak sources were found.The component parts and areas of the leaks involve the On-Board Diagnostic fuel tank pressure sensor (located on top of the fuel filter/sender), the outlet of the centrally mounted fuel tank fuel filling limiter valve, and the top of the fuel pump. These areas of leakage are located at the top of the fuel tank in unpressurized parts of the fuel system. When the tank is full, fuel can slowly weep/seep from micro-cracks in these components and may collect in cavities on top of the filter/sender, pump, or tank.Contrary to complainant's allegations that fuel entered the inside of their vehicle under the rear seat bench, neither ODI nor Mercedes found a plausible way for this to occur.The fuel tank is located outside of the passenger compartment, attached to the underside of the vehicle.The service access ports for the fuel filter/sender (driver's side) and fuel pump (passenger's side) are located under the rear seat bench, covered by a steel plate, sealed and bolted to the vehicle floor.When technicians service the fuel filter/sender, which has a regularly scheduled 60,000 mile service interval, and/or the fuel pump, the work is performed from inside the vehicle by working through the access ports.By letter dated September 4, 2014, Mercedes has notified the agency that it will extend the original warranty coverage to 15 years and unlimited mileage on Covered Fuel Tank Components in E-Class vehicles in MY 2003-2009 and CLS-Class vehicles in MY 2006-2011.The covered fuel tank components for the warranty extension include the fuel tank, fuel filter/sender, fuel pump, and all related gaskets/seals and retention rings.ODI is closing this investigation based on the manufacturer's extend warranty of the affected fuel system components and in consideration that the nature of the leaks does not appear to present an un
Additional source detail variants (6)
Fuel System, Gasoline:delivery:fuel Pump
The Office of Defects Investigation (ODI) opened this investigation on January 23, 2012 as PE12-001 based on 20 consumer reports in model year (MY) 2003-2006 E55 AMG vehicles.Based on new reports in other E-Class vehicles, ODI upgraded the investigation to Engineering Analysis (EA) 13-003 on March 15, 2013, and expanded the scope to all E-Class vehicles through MY 2008.The complainants alleged a strong odor of gasoline fuel both inside and outside of their vehicle, particularly after refilling the fuel tank.Many of the complainants noted that the odor subsided or went away after driving some distance thereby lowering the fuel level in the tank.Other owners reported they would only fill the tank to about three quarters full to avoid the odor altogether.Some complainants alleged fuel leaked from the fuel filter/sender, located on the top of the fuel tank on the driver's side, and collected on top of the tank.There were also allegations that the fuel leaks were associated with an Emissions Recall Campaign (No. 2008020001) conducted by Mercedes-Benz USA, LLC (Mercedes) in 2008 on MY 2003-2006 E-Class and CLS-Class AMG models.The issue in the recall involved small cracks in the pressurized outlet fitting of the fuel filter/sender.AMG vehicles are high performance models that operate at higher fuel pressure and use a different fuel filter/sender and fuel pump than non-AMG models.Information on Recall No. 2008020001 is available from the U.S. Environmental Protection Agency (EPA) website at www.EPA.gov.ODI's investigation found various leak sources that are unrelated to the outlet fitting cited in the EPA recall campaign.Through interviews with complainants, field inspections of complaint vehicles, and the collection and laboratory analysis of failed parts, three identifiable leak sources were found.The component parts and areas of the leaks involve the On-Board Diagnostic fuel tank pressure sensor (located on top of the fuel filter/sender), the outlet of the centrally mounted fuel tank fuel filling limiter valve, and the top of the fuel pump. These areas of leakage are located at the top of the fuel tank in unpressurized parts of the fuel system. When the tank is full, fuel can slowly weep/seep from micro-cracks in these components and may collect in cavities on top of the filter/sender, pump, or tank.Contrary to complainant's allegations that fuel entered the inside of their vehicle under the rear seat bench, neither ODI nor Mercedes found a plausible way for this to occur.The fuel tank is located outside of the passenger compartment, attached to the underside of the vehicle.The service access ports for the fuel filter/sender (driver's side) and fuel pump (passenger's side) are located under the rear seat bench, covered by a steel plate, sealed and bolted to the vehicle floor.When technicians service the fuel filter/sender, which has a regularly scheduled 60,000 mile service interval, and/or the fuel pump, the work is performed from inside the vehicle by working through the access ports.By letter dated September 4, 2014, Mercedes has notified the agency that it will extend the original warranty coverage to 15 years and unlimited mileage on Covered Fuel Tank Components in E-Class vehicles in MY 2003-2009 and CLS-Class vehicles in MY 2006-2011.The covered fuel tank components for the warranty extension include the fuel tank, fuel filter/sender, fuel pump, and all related gaskets/seals and retention rings.ODI is closing this investigation based on the manufacturer's extend warranty of the affected fuel system components and in consideration that the nature of the leaks does not appear to present an un
Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings
The Office of Defects Investigation (ODI) opened this investigation on January 23, 2012 as PE12-001 based on 20 consumer reports in model year (MY) 2003-2006 E55 AMG vehicles.Based on new reports in other E-Class vehicles, ODI upgraded the investigation to Engineering Analysis (EA) 13-003 on March 15, 2013, and expanded the scope to all E-Class vehicles through MY 2008.The complainants alleged a strong odor of gasoline fuel both inside and outside of their vehicle, particularly after refilling the fuel tank.Many of the complainants noted that the odor subsided or went away after driving some distance thereby lowering the fuel level in the tank.Other owners reported they would only fill the tank to about three quarters full to avoid the odor altogether.Some complainants alleged fuel leaked from the fuel filter/sender, located on the top of the fuel tank on the driver's side, and collected on top of the tank.There were also allegations that the fuel leaks were associated with an Emissions Recall Campaign (No. 2008020001) conducted by Mercedes-Benz USA, LLC (Mercedes) in 2008 on MY 2003-2006 E-Class and CLS-Class AMG models.The issue in the recall involved small cracks in the pressurized outlet fitting of the fuel filter/sender.AMG vehicles are high performance models that operate at higher fuel pressure and use a different fuel filter/sender and fuel pump than non-AMG models.Information on Recall No. 2008020001 is available from the U.S. Environmental Protection Agency (EPA) website at www.EPA.gov.ODI's investigation found various leak sources that are unrelated to the outlet fitting cited in the EPA recall campaign.Through interviews with complainants, field inspections of complaint vehicles, and the collection and laboratory analysis of failed parts, three identifiable leak sources were found.The component parts and areas of the leaks involve the On-Board Diagnostic fuel tank pressure sensor (located on top of the fuel filter/sender), the outlet of the centrally mounted fuel tank fuel filling limiter valve, and the top of the fuel pump. These areas of leakage are located at the top of the fuel tank in unpressurized parts of the fuel system. When the tank is full, fuel can slowly weep/seep from micro-cracks in these components and may collect in cavities on top of the filter/sender, pump, or tank.Contrary to complainant's allegations that fuel entered the inside of their vehicle under the rear seat bench, neither ODI nor Mercedes found a plausible way for this to occur.The fuel tank is located outside of the passenger compartment, attached to the underside of the vehicle.The service access ports for the fuel filter/sender (driver's side) and fuel pump (passenger's side) are located under the rear seat bench, covered by a steel plate, sealed and bolted to the vehicle floor.When technicians service the fuel filter/sender, which has a regularly scheduled 60,000 mile service interval, and/or the fuel pump, the work is performed from inside the vehicle by working through the access ports.By letter dated September 4, 2014, Mercedes has notified the agency that it will extend the original warranty coverage to 15 years and unlimited mileage on Covered Fuel Tank Components in E-Class vehicles in MY 2003-2009 and CLS-Class vehicles in MY 2006-2011.The covered fuel tank components for the warranty extension include the fuel tank, fuel filter/sender, fuel pump, and all related gaskets/seals and retention rings.ODI is closing this investigation based on the manufacturer's extend warranty of the affected fuel system components and in consideration that the nature of the leaks does not appear to present an un
Fuel System, Gasoline:delivery
The Office of Defects Investigation (ODI) opened this investigation on January 23, 2012 as PE12-001 based on 20 consumer reports in model year (MY) 2003-2006 E55 AMG vehicles.Based on new reports in other E-Class vehicles, ODI upgraded the investigation to Engineering Analysis (EA) 13-003 on March 15, 2013, and expanded the scope to all E-Class vehicles through MY 2008.The complainants alleged a strong odor of gasoline fuel both inside and outside of their vehicle, particularly after refilling the fuel tank.Many of the complainants noted that the odor subsided or went away after driving some distance thereby lowering the fuel level in the tank.Other owners reported they would only fill the tank to about three quarters full to avoid the odor altogether.Some complainants alleged fuel leaked from the fuel filter/sender, located on the top of the fuel tank on the driver's side, and collected on top of the tank.There were also allegations that the fuel leaks were associated with an Emissions Recall Campaign (No. 2008020001) conducted by Mercedes-Benz USA, LLC (Mercedes) in 2008 on MY 2003-2006 E-Class and CLS-Class AMG models.The issue in the recall involved small cracks in the pressurized outlet fitting of the fuel filter/sender.AMG vehicles are high performance models that operate at higher fuel pressure and use a different fuel filter/sender and fuel pump than non-AMG models.Information on Recall No. 2008020001 is available from the U.S. Environmental Protection Agency (EPA) website at www.EPA.gov.ODI's investigation found various leak sources that are unrelated to the outlet fitting cited in the EPA recall campaign.Through interviews with complainants, field inspections of complaint vehicles, and the collection and laboratory analysis of failed parts, three identifiable leak sources were found.The component parts and areas of the leaks involve the On-Board Diagnostic fuel tank pressure sensor (located on top of the fuel filter/sender), the outlet of the centrally mounted fuel tank fuel filling limiter valve, and the top of the fuel pump. These areas of leakage are located at the top of the fuel tank in unpressurized parts of the fuel system. When the tank is full, fuel can slowly weep/seep from micro-cracks in these components and may collect in cavities on top of the filter/sender, pump, or tank.Contrary to complainant's allegations that fuel entered the inside of their vehicle under the rear seat bench, neither ODI nor Mercedes found a plausible way for this to occur.The fuel tank is located outside of the passenger compartment, attached to the underside of the vehicle.The service access ports for the fuel filter/sender (driver's side) and fuel pump (passenger's side) are located under the rear seat bench, covered by a steel plate, sealed and bolted to the vehicle floor.When technicians service the fuel filter/sender, which has a regularly scheduled 60,000 mile service interval, and/or the fuel pump, the work is performed from inside the vehicle by working through the access ports.By letter dated September 4, 2014, Mercedes has notified the agency that it will extend the original warranty coverage to 15 years and unlimited mileage on Covered Fuel Tank Components in E-Class vehicles in MY 2003-2009 and CLS-Class vehicles in MY 2006-2011.The covered fuel tank components for the warranty extension include the fuel tank, fuel filter/sender, fuel pump, and all related gaskets/seals and retention rings.ODI is closing this investigation based on the manufacturer's extend warranty of the affected fuel system components and in consideration that the nature of the leaks does not appear to present an un
Fuel System, Gasoline
The Office of Defects Investigation (ODI) opened this investigation on January 23, 2012 as PE12-001 based on 20 consumer reports in model year (MY) 2003-2006 E55 AMG vehicles.Based on new reports in other E-Class vehicles, ODI upgraded the investigation to Engineering Analysis (EA) 13-003 on March 15, 2013, and expanded the scope to all E-Class vehicles through MY 2008.The complainants alleged a strong odor of gasoline fuel both inside and outside of their vehicle, particularly after refilling the fuel tank.Many of the complainants noted that the odor subsided or went away after driving some distance thereby lowering the fuel level in the tank.Other owners reported they would only fill the tank to about three quarters full to avoid the odor altogether.Some complainants alleged fuel leaked from the fuel filter/sender, located on the top of the fuel tank on the driver's side, and collected on top of the tank.There were also allegations that the fuel leaks were associated with an Emissions Recall Campaign (No. 2008020001) conducted by Mercedes-Benz USA, LLC (Mercedes) in 2008 on MY 2003-2006 E-Class and CLS-Class AMG models.The issue in the recall involved small cracks in the pressurized outlet fitting of the fuel filter/sender.AMG vehicles are high performance models that operate at higher fuel pressure and use a different fuel filter/sender and fuel pump than non-AMG models.Information on Recall No. 2008020001 is available from the U.S. Environmental Protection Agency (EPA) website at www.EPA.gov.ODI's investigation found various leak sources that are unrelated to the outlet fitting cited in the EPA recall campaign.Through interviews with complainants, field inspections of complaint vehicles, and the collection and laboratory analysis of failed parts, three identifiable leak sources were found.The component parts and areas of the leaks involve the On-Board Diagnostic fuel tank pressure sensor (located on top of the fuel filter/sender), the outlet of the centrally mounted fuel tank fuel filling limiter valve, and the top of the fuel pump. These areas of leakage are located at the top of the fuel tank in unpressurized parts of the fuel system. When the tank is full, fuel can slowly weep/seep from micro-cracks in these components and may collect in cavities on top of the filter/sender, pump, or tank.Contrary to complainant's allegations that fuel entered the inside of their vehicle under the rear seat bench, neither ODI nor Mercedes found a plausible way for this to occur.The fuel tank is located outside of the passenger compartment, attached to the underside of the vehicle.The service access ports for the fuel filter/sender (driver's side) and fuel pump (passenger's side) are located under the rear seat bench, covered by a steel plate, sealed and bolted to the vehicle floor.When technicians service the fuel filter/sender, which has a regularly scheduled 60,000 mile service interval, and/or the fuel pump, the work is performed from inside the vehicle by working through the access ports.By letter dated September 4, 2014, Mercedes has notified the agency that it will extend the original warranty coverage to 15 years and unlimited mileage on Covered Fuel Tank Components in E-Class vehicles in MY 2003-2009 and CLS-Class vehicles in MY 2006-2011.The covered fuel tank components for the warranty extension include the fuel tank, fuel filter/sender, fuel pump, and all related gaskets/seals and retention rings.ODI is closing this investigation based on the manufacturer's extend warranty of the affected fuel system components and in consideration that the nature of the leaks does not appear to present an un
Fuel System, Gasoline:storage
The Office of Defects Investigation (ODI) opened this investigation on January 23, 2012 as PE12-001 based on 20 consumer reports in model year (MY) 2003-2006 E55 AMG vehicles.Based on new reports in other E-Class vehicles, ODI upgraded the investigation to Engineering Analysis (EA) 13-003 on March 15, 2013, and expanded the scope to all E-Class vehicles through MY 2008.The complainants alleged a strong odor of gasoline fuel both inside and outside of their vehicle, particularly after refilling the fuel tank.Many of the complainants noted that the odor subsided or went away after driving some distance thereby lowering the fuel level in the tank.Other owners reported they would only fill the tank to about three quarters full to avoid the odor altogether.Some complainants alleged fuel leaked from the fuel filter/sender, located on the top of the fuel tank on the driver's side, and collected on top of the tank.There were also allegations that the fuel leaks were associated with an Emissions Recall Campaign (No. 2008020001) conducted by Mercedes-Benz USA, LLC (Mercedes) in 2008 on MY 2003-2006 E-Class and CLS-Class AMG models.The issue in the recall involved small cracks in the pressurized outlet fitting of the fuel filter/sender.AMG vehicles are high performance models that operate at higher fuel pressure and use a different fuel filter/sender and fuel pump than non-AMG models.Information on Recall No. 2008020001 is available from the U.S. Environmental Protection Agency (EPA) website at www.EPA.gov.ODI's investigation found various leak sources that are unrelated to the outlet fitting cited in the EPA recall campaign.Through interviews with complainants, field inspections of complaint vehicles, and the collection and laboratory analysis of failed parts, three identifiable leak sources were found.The component parts and areas of the leaks involve the On-Board Diagnostic fuel tank pressure sensor (located on top of the fuel filter/sender), the outlet of the centrally mounted fuel tank fuel filling limiter valve, and the top of the fuel pump. These areas of leakage are located at the top of the fuel tank in unpressurized parts of the fuel system. When the tank is full, fuel can slowly weep/seep from micro-cracks in these components and may collect in cavities on top of the filter/sender, pump, or tank.Contrary to complainant's allegations that fuel entered the inside of their vehicle under the rear seat bench, neither ODI nor Mercedes found a plausible way for this to occur.The fuel tank is located outside of the passenger compartment, attached to the underside of the vehicle.The service access ports for the fuel filter/sender (driver's side) and fuel pump (passenger's side) are located under the rear seat bench, covered by a steel plate, sealed and bolted to the vehicle floor.When technicians service the fuel filter/sender, which has a regularly scheduled 60,000 mile service interval, and/or the fuel pump, the work is performed from inside the vehicle by working through the access ports.By letter dated September 4, 2014, Mercedes has notified the agency that it will extend the original warranty coverage to 15 years and unlimited mileage on Covered Fuel Tank Components in E-Class vehicles in MY 2003-2009 and CLS-Class vehicles in MY 2006-2011.The covered fuel tank components for the warranty extension include the fuel tank, fuel filter/sender, fuel pump, and all related gaskets/seals and retention rings.ODI is closing this investigation based on the manufacturer's extend warranty of the affected fuel system components and in consideration that the nature of the leaks does not appear to present an un
Fuel System, Gasoline:storage:tank Assembly
The Office of Defects Investigation (ODI) opened this investigation on January 23, 2012 as PE12-001 based on 20 consumer reports in model year (MY) 2003-2006 E55 AMG vehicles.Based on new reports in other E-Class vehicles, ODI upgraded the investigation to Engineering Analysis (EA) 13-003 on March 15, 2013, and expanded the scope to all E-Class vehicles through MY 2008.The complainants alleged a strong odor of gasoline fuel both inside and outside of their vehicle, particularly after refilling the fuel tank.Many of the complainants noted that the odor subsided or went away after driving some distance thereby lowering the fuel level in the tank.Other owners reported they would only fill the tank to about three quarters full to avoid the odor altogether.Some complainants alleged fuel leaked from the fuel filter/sender, located on the top of the fuel tank on the driver's side, and collected on top of the tank.There were also allegations that the fuel leaks were associated with an Emissions Recall Campaign (No. 2008020001) conducted by Mercedes-Benz USA, LLC (Mercedes) in 2008 on MY 2003-2006 E-Class and CLS-Class AMG models.The issue in the recall involved small cracks in the pressurized outlet fitting of the fuel filter/sender.AMG vehicles are high performance models that operate at higher fuel pressure and use a different fuel filter/sender and fuel pump than non-AMG models.Information on Recall No. 2008020001 is available from the U.S. Environmental Protection Agency (EPA) website at www.EPA.gov.ODI's investigation found various leak sources that are unrelated to the outlet fitting cited in the EPA recall campaign.Through interviews with complainants, field inspections of complaint vehicles, and the collection and laboratory analysis of failed parts, three identifiable leak sources were found.The component parts and areas of the leaks involve the On-Board Diagnostic fuel tank pressure sensor (located on top of the fuel filter/sender), the outlet of the centrally mounted fuel tank fuel filling limiter valve, and the top of the fuel pump. These areas of leakage are located at the top of the fuel tank in unpressurized parts of the fuel system. When the tank is full, fuel can slowly weep/seep from micro-cracks in these components and may collect in cavities on top of the filter/sender, pump, or tank.Contrary to complainant's allegations that fuel entered the inside of their vehicle under the rear seat bench, neither ODI nor Mercedes found a plausible way for this to occur.The fuel tank is located outside of the passenger compartment, attached to the underside of the vehicle.The service access ports for the fuel filter/sender (driver's side) and fuel pump (passenger's side) are located under the rear seat bench, covered by a steel plate, sealed and bolted to the vehicle floor.When technicians service the fuel filter/sender, which has a regularly scheduled 60,000 mile service interval, and/or the fuel pump, the work is performed from inside the vehicle by working through the access ports.By letter dated September 4, 2014, Mercedes has notified the agency that it will extend the original warranty coverage to 15 years and unlimited mileage on Covered Fuel Tank Components in E-Class vehicles in MY 2003-2009 and CLS-Class vehicles in MY 2006-2011.The covered fuel tank components for the warranty extension include the fuel tank, fuel filter/sender, fuel pump, and all related gaskets/seals and retention rings.ODI is closing this investigation based on the manufacturer's extend warranty of the affected fuel system components and in consideration that the nature of the leaks does not appear to present an un