IllustrationMileage unknown · Oct 18, 2017
Service Brakes
OEM BRAKES
NHTSA ODI #11034374
2004 Mercedes Benz E320
Owner reports · Recalls · Investigations
More warning signs than most E320 years
Owner complaints for the 2004 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
80–25K
1525–50K
3150–75K
3275–100K
64100–150K
18150K+
168 reports with mileage · 35 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 79 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 41 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 38 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
6 crash reports1 fire reports4 injury reports
Service Brakes complaints
41 reportsOEM BRAKES
THE SBC CONTROL UNIT FAILED. THERE WAS A RED WARNING LIGHT ON DASH, THAT WHEN I WAS IN THE ROAD THE BRAKES JUST ABOUT FAILED. WHEN I SHUT OFF THE CAR AND TRIED TO START AGAIN IT WOULD NOT LET ME MOVE IT FROM PARK POSITION. TRIED SEVERAL TIMES AND WAS ABLE TO GET IT INTO NEUTRAL AND DRIVE TO PULL IN POSITION FOR THE TOW TRUCK.…
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THE SBC CONTROL UNIT FAILED. THERE WAS A RED WARNING LIGHT ON DASH, THAT WHEN I WAS IN THE ROAD THE BRAKES JUST ABOUT FAILED. WHEN I SHUT OFF THE CAR AND TRIED TO START AGAIN IT WOULD NOT LET ME MOVE IT FROM PARK POSITION. TRIED SEVERAL TIMES AND WAS ABLE TO GET IT INTO NEUTRAL AND DRIVE TO PULL IN POSITION FOR THE TOW TRUCK. IN READING UP ON THE WEB THIS IS A KNOWN PROBLEM WITH THE SBC CONTROL UNIT. I WAS FORTUNATE TO BE CLOSE TO HOME BUT THIS IS A REALLY DANGEROUS PROBLEM. MERCEDES PUT A LIMIT ON THE UNIT TO SHUT DOWN WITHOUT WARNING. THEY DO NOT HAVE ANY WAY TO TELL US OWNERS WHEN THIS WILL HIT THEIR LIMIT. THEY SHOULD BE FORCED TO REPAIR ALL OF THESE SBC CONTROL UNITS OR AT LEAST FIND A WAY TO TELL US WHEN IT WILL HAPPEN. I ALSO FOUND OUT THAT THEY DID KNOW OF THE PROBLEM AND EXTENDED THE WARRANTY FOR THE SBC UNIT FOR TEN YEARS, BUT DEPENDING HOW OFTEN YOU USED IT DETERMINES THE BREAK DOWN OF THE BRAKE SYSTEM.WHICH MEANT IF YOU HAD AN OLDER CAR YOU PAID FOR SOMETHING THEY FORCE TO BREAK. THERE IS AN APP $30 THAT CAN RESET THE AMOUNT OF BRAKING YOU HAVE DONE AND HAS BEEN SHOWN TO FIX THE PROBLEM INSTEAD OF A $2000 REPAIR THAT MERCEDES WILL CHARGE YOU FOR A WHOLE NEW SBC UNIT. WHY DON'T THE DEALERS HAVE THIS APP? WHY DO WE LET THE MANUFACTURERS GET AWAY WITH FORCING PARTS TO SEEMINGLY BREAK SO THEY CAN MAKE MORE MONEY?
A WARNING SIGNAL APPEARED ON BY DASH BOARD CITING BRAKES, TAKE TO SHOP. THE MERCEDES BENZ SERVICE CENTER PUT ON FRONT BRAKES PADS AND ROTORS. I WAS TOLD TODED TO REPLACE THE SBC UNITED BECAUSE IT WAS "TIMED OUT" AND THE BRAKES COULD FAIL.THE COST OF UNIT IS $2418.32. THIS IS LIFE THREATENING.THERE SHOULD BE A RECALL.
TL* THE CONTACT OWNS A 2004 MERCEDES-BENZ E320. WHEN THE CONTACT DEPRESSED THE BRAKE PEDAL, IT TRAVELED TO THE FLOORBOARD. THE BRAKE AND VARIOUS OTHER WARNING INDICATORS FLASHED. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT MECHANIC WHO STATED THAT THERE WAS A MANUFACTURER RECALL AND THAT THE SENSOTRONIC BRAKE CONTROL SYSTEM FAIL…
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TL* THE CONTACT OWNS A 2004 MERCEDES-BENZ E320. WHEN THE CONTACT DEPRESSED THE BRAKE PEDAL, IT TRAVELED TO THE FLOORBOARD. THE BRAKE AND VARIOUS OTHER WARNING INDICATORS FLASHED. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT MECHANIC WHO STATED THAT THERE WAS A MANUFACTURER RECALL AND THAT THE SENSOTRONIC BRAKE CONTROL SYSTEM FAILED TO FUNCTION PROPERLY. THE VEHICLE WAS NOT YET INSPECTED AND DIAGNOSED BY A DEALER. THE VEHICLE WAS EXCLUDED FROM NHTSA CAMPAIGN NUMBER: 05V133000 (SERVICE BRAKES, HYDRAULIC), ALTHOUGH THE FAILURES WERE IDENTICAL. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND THE CONTACT WAS WAITING TO DETERMINE IF THEY WOULD RESPOND WITH A SOLUTION TO PREVENT THE FAILURE. THE FAILURE MILEAGE WAS NOT AVAILABLE.
TL* THE CONTACT OWNS A 2004 MERCEDES-BENZ E320. WHILE DRIVING 35 MPH, A RED WARNING INDICATOR ILLUMINATED ON THE INSTRUMENT PANEL REGARDING THE BRAKES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE ABS STABILIZER FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER W…
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TL* THE CONTACT OWNS A 2004 MERCEDES-BENZ E320. WHILE DRIVING 35 MPH, A RED WARNING INDICATOR ILLUMINATED ON THE INSTRUMENT PANEL REGARDING THE BRAKES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE ABS STABILIZER FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 83,000.
THIS VEHICLE IS EQUIPPED WITH SENSOTRONIC BRAKE CONTROL THAT HAS A SERVICE THRESHOLD. WHEN THIS THRESHOLD IS REACHED THE BRAKE SYSTEM DEFAULTS TO NON POWER ASSISTED HYDRAULIC MODE TO THE FRONT WHEELS ONLY. THIS OCCURS WITHOUT ANY PRIOR WARNING AND RESULTS IN INCREASED STOPPING DISTANCE. I HAVE SENT A COPY OF THE MERCEDES SERVICE…
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THIS VEHICLE IS EQUIPPED WITH SENSOTRONIC BRAKE CONTROL THAT HAS A SERVICE THRESHOLD. WHEN THIS THRESHOLD IS REACHED THE BRAKE SYSTEM DEFAULTS TO NON POWER ASSISTED HYDRAULIC MODE TO THE FRONT WHEELS ONLY. THIS OCCURS WITHOUT ANY PRIOR WARNING AND RESULTS IN INCREASED STOPPING DISTANCE. I HAVE SENT A COPY OF THE MERCEDES SERVICE BULLETIN S142.46-P-0012A WHICH ADDRESSES THIS ISSUE. MERCEDES STOPPED INSTALLING THIS SYSTEM IN 2006. AT THE VERY LEAST, MERCEDES SHOULD ISSUE A MANDATORY RECALL TO INTERROGATE THESE VEHICLES WITH STAR DAS TO DETERMINE HOW CLOSE TO THE SERVICE THRESHOLD THE SBC UNIT IS AND REPLACE THEM AT THE DEALER'S EXPENSE. THIS IS A MAJOR SAFETY ISSUE THAT NEEDS TO BE ADDRESSED.
I WAS DRIVING DOWN A PAVED ROAD, WENT TO MAKE A LEFT HAND TURN AND MY ESP CAME ON, VEHICLE SHUT OFF AND ALMOST RAN ME INTO ANOTHER VEHICLE, WHICH THEN CAUSED ME TO RUN INTO THE DITCH. NOW I'M FINDING OUT THAT THERE IS A RECALL ON THE SBC UNIT, WHICH IS WHAT'S WRONG WITH MY CAR, BUT THE RECALL IS NOT SHOWING UP FOR MY VIN NUMBER.…
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I WAS DRIVING DOWN A PAVED ROAD, WENT TO MAKE A LEFT HAND TURN AND MY ESP CAME ON, VEHICLE SHUT OFF AND ALMOST RAN ME INTO ANOTHER VEHICLE, WHICH THEN CAUSED ME TO RUN INTO THE DITCH. NOW I'M FINDING OUT THAT THERE IS A RECALL ON THE SBC UNIT, WHICH IS WHAT'S WRONG WITH MY CAR, BUT THE RECALL IS NOT SHOWING UP FOR MY VIN NUMBER. I AM VERY, VERY DISAPPOINTED/FRUSTRATED BY MERCEDES. THIS IS A VERY EXPENSIVE PART TO REPLACE. I SHOULD NOT HAVE TO PAY OUT OF POCKET TO FIX MY CAR, WHICH IS NOW SITTING DUE TO IT NOT STARTING, ESPECIALLY IF OTHER SAME YEAR VEHICLES WERE AFFECTED AND THEIRS IS COVERED UNDER THE RECALL. I THINK THE ENTIRE SITUATION IS RIDICULOUS! I WILL NEVER OWN ANOTHER MERCEDES!!! *TR
GAS SMELL ALL THE TIME, MAIN COMPUTER KEEPS ON AND DRAINS BATTERY, BRAKES LIGHTS
I AM AN OWNER OF A 2004 MERCEDES BENZ E320 THAT I HAVE BOUGHT 3 YEARS AGO IN NOVEMBER. WHEN I PURCHASED THE VEHICLE I ELECTED TO ALSO BUY A 3 YEAR 36K WARRANTY. OVER THE PAST 3 YEAR I HAVE HAD NO TO VERY LITTLE TROUBLE WITH THE VEHICLE AND HAVE MAINTAINED A VERY POSITIVE AND OPTIMISTIC ATTITUDE TOWARDS THE VEHICLE NEVER HAVING T…
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I AM AN OWNER OF A 2004 MERCEDES BENZ E320 THAT I HAVE BOUGHT 3 YEARS AGO IN NOVEMBER. WHEN I PURCHASED THE VEHICLE I ELECTED TO ALSO BUY A 3 YEAR 36K WARRANTY. OVER THE PAST 3 YEAR I HAVE HAD NO TO VERY LITTLE TROUBLE WITH THE VEHICLE AND HAVE MAINTAINED A VERY POSITIVE AND OPTIMISTIC ATTITUDE TOWARDS THE VEHICLE NEVER HAVING TO UTILIZE THE WARRANTY. WELL UNTIL LAST WEEK... I WAS DRIVING THE VEHICLE ON THE INTERSTATE WHEN SUDDENLY I LOST ALL BRAKING POWER OUT OF NOWHERE. I WAS PETRIFIED AND VERY SCARED FOR MYSELF AND EVERYONE IN THE VEHICLE, ONLY GETTING A "REDUCED BRAKING POWER" NOTICE ON THE DASH AFTER BRAKE LOSS. RECOLLECTING THAT IF THIS OCCURRED IN HEAVIER TRAFFIC WE COULD HAVE BEEN SERIOUSLY INJURED AND OR KILLED IN AN ACCIDENT DUE TO THE REACTION OF THE SBC UNIT THAT FAILED IN THE VEHICLE. COME TO FIND OUT MY VEHICLE HAD A RECALL FOR THIS SPECIFIC FAILED UNIT AND MERCEDES BENZ OFFERED A 10 YEAR 150K MILE WARRANTY TO FIX THIS ISSUE IN THE VEHICLE. UNFORTUNATELY BY THE TIME THAT I HAD PURCHASED THE VEHICLE, HAD I KNOW THIS WAS AN ISSUE, I WOULD HAVE ONLY HAD A SHORT PERIOD OF TIME FOR THE UNIT TO FAIL BEFORE I COULD HAVE TAKEN ADVANTAGE OF THIS "WARRANTY".. BUT I WAS UNAWARE OF THIS ISSUE AND HONESTLY WOULD HAVE NOT PURCHASED THE VEHICLE IF I WOULD HAVE KNOWN. I COMMUTED WITH THIS VEHICLE 60 MILES A DAY FOR THE LAST YEAR AND EVEN DROVE IT TO CALIFORNIA OVER THE SUMMER AS A FAMILY TRIP, WITH NO NEGATIVE THOUGHTS OR MALFUNCTIONS. I CANNOT SAY THAT I CAN DRIVE THIS VEHICLE IN CONFIDENCE ANY LONGER WITH THE KNOWLEDGE THAT I HAVE NOW OF THE SBC BRAKING UNITS. MY VEHICLE WARRANTY IS NO LONGER VALID BECAUSE MY VEHICLE EXCEEDED MILEAGE..THIS ISSUE SHOULD BE COVERED BY MERCEDES I SHOULD NOT BE HELD LIABLE FOR CORRECTING THIS ISSUE. THIS IS A MAJOR SAFTEY ISSUE AND IS NOT BEING ADDRESS APPROPRIATELY.
TAKATA RECALL. THE BRAKE LIGHT ON DASHBOARD CAME ON FEW MONTHS AGO. WE HAD REPLACED BRAKE PADS ETC, EARLIER AND WAS TOLD THE SBC NEEDED TO BE REPLACED. I WENT TO 2 DEALERS IN MY AREA AND THEY BOTH STATED IT IS NOT UNDER WARRANTY. I HAVE READ MANY COMMENTS ABOUT THE FAULTY DESIGN FROM MBENZ AND DO NOT UNDERSTAND WHY THEY DO NOT W…
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TAKATA RECALL. THE BRAKE LIGHT ON DASHBOARD CAME ON FEW MONTHS AGO. WE HAD REPLACED BRAKE PADS ETC, EARLIER AND WAS TOLD THE SBC NEEDED TO BE REPLACED. I WENT TO 2 DEALERS IN MY AREA AND THEY BOTH STATED IT IS NOT UNDER WARRANTY. I HAVE READ MANY COMMENTS ABOUT THE FAULTY DESIGN FROM MBENZ AND DO NOT UNDERSTAND WHY THEY DO NOT WANT TO REPLACE IT AT THEIR COST. ARE THEY WAITING FOR LAWYERS TO SUE FOR A FATAL CRASH? I DO NOT WANT TO BE THE ONE DYING NOR ANYONE IN MY FAMILY. THE CAR HAS ONLY 106,331 MILES. CAN YOU HELP?
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