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2006 Mercedes Benz E320

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2006 Mercedes Benz E320 do not stand out strongly from the model-year median of 42.5.

About this comparison →

How this year compares

Owner complaints by model year

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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

33 reports with mileage · 8 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.

  • Service Brakes. Review the 15 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Exterior Lighting. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

2 crash reports0 fire reports2 injury reports

What owners actually said

41 reports
69,400 miles · Apr 24, 2012
Fuel System, Gasoline

THE FUEL LEAKED ONTO THE GROUND, ONTO THE EXHAUST, AND THE SMELL WAS INSIDE THE VEHICLE CABIN. WE GOT THE FUEL PUMP ASSEMBLY REPLACED BUT WE STILL HAVE A FUEL CAP FAILURE NOW WITH NO RESULT. THERE IS A DESIGN FLAW PRESENT & USING A BAND-AID FOR THE PROBLEM WILL NOT SOLVE ANYTHING. *TR

NHTSA ODI #10456340

Mileage unknown · Mar 8, 2012
Fuel System, Diesel

I NOTICED FUEL STAINS ON BOTTOM OF FUEL TANK AND SMELL OF DIESEL IN MY GARAGE ESPECIALLY AFTER FILL UP. I TOLD THE DEALER WHEN I HAD THE CAR IN FOR SERVICE. THEY SAID I HAD A FUEL LEAK AND THE FUEL TANK WOULD HAVE TO BE REMOVED TO FIND THE SOURCE. THEY SAID THE PROBLEM COULD BE THE TANK, SENDING UNIT, OR SEALS....ALL VERY EXPENS…

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I NOTICED FUEL STAINS ON BOTTOM OF FUEL TANK AND SMELL OF DIESEL IN MY GARAGE ESPECIALLY AFTER FILL UP. I TOLD THE DEALER WHEN I HAD THE CAR IN FOR SERVICE. THEY SAID I HAD A FUEL LEAK AND THE FUEL TANK WOULD HAVE TO BE REMOVED TO FIND THE SOURCE. THEY SAID THE PROBLEM COULD BE THE TANK, SENDING UNIT, OR SEALS....ALL VERY EXPENSIVE TO DIAGNOSE/ REPAIR. I MET WITH THE SERVICE MGR TO SEEK AN OUT OF WARRANTY COVERAGE AND GOT NOTHING. I CALLED MERCEDES CORPORATE CUSTOMER SERVICE. THEY DECLINED TO COVER ANY OUT OF WARRANTY REPAIR COSTS. I REMOVED THE REAR SEAT AND FOUND FUEL PUDDLING AROUND THE SENDING UNIT (IN THE TANK) ON THE DRIVER?S SIDE. IT IS UNCONSCIONABLE THAT THERE ARE FUEL LEAKS IN A HIGH LINE EXPENSIVE CAR LIKE THIS. MERCEDES CUSTOMERS SHOULD RIGHTFULLY EXPECT A LEAK FREE FUEL TANK FOR THE LIFE OF THE CAR. IT IS SHAMEFUL THAT MERCEDES DOESN'T OWN UP TO IT AND ISSUE A RECALL NOTICE AND FIX THIS BEFORE SOMEONE IS KILLED. *TR

NHTSA ODI #10450703

84,042 miles · Oct 28, 2011
Air BagsService Brakes, HydraulicCrashInjury

DRIVING EAST ON US 30 IN SLOW MOVING TRAFFIC ON WET PAVEMENT (DUE TO PREVIOUS RAIN) BETWEEN TORONITO STREET AND LOUCKS MILL ROAD IN YORK, PA, I ATTEMPTED TO SLOW DOWN TO STAY WITH THE TRAFFIC AND REALIZED THE BRAKES WERE NOT WORKING, I APPLIED FULL PRESSURE EXPECTING THE ABS TO ACTIVATE AND NOTHING HAPPENED. I RAN INTO THE BACK …

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DRIVING EAST ON US 30 IN SLOW MOVING TRAFFIC ON WET PAVEMENT (DUE TO PREVIOUS RAIN) BETWEEN TORONITO STREET AND LOUCKS MILL ROAD IN YORK, PA, I ATTEMPTED TO SLOW DOWN TO STAY WITH THE TRAFFIC AND REALIZED THE BRAKES WERE NOT WORKING, I APPLIED FULL PRESSURE EXPECTING THE ABS TO ACTIVATE AND NOTHING HAPPENED. I RAN INTO THE BACK OF THE CAR AHEAD WHICH WENT INTO THE CAR IN FRONT OF HIM. THE IMPACT DID NOT ACTIVATE THE AIRBAGS. MY SEAT BELT HELD ME BUT I DID RECEIVE WHIP-LASH. THE INSURANCE COMPANY HAS TOTALED MY CAR. *TR THE CONSUMER RECEIVED A LETTER FROM MERCEDES BENZ STATING THE IMPACT DAMAGE WAS BELOW AIR BAG DEPLOYMENT THRESHOLDS AND THE EXAMINATION OF THE VEHICLE, REVEALED NO DEFECT IN THE BRAKING SYSTEM. UPDATED IVOQ 01/06/12. *TT

NHTSA ODI #10433501

60,000 miles · Nov 9, 2010
Air BagsSeat Belts

2006 MERCEDES E320 CDI SRS MALFUNCTION MESSAGE. SO FAR HAVE HAD TO REPLACE STEERING WHEEL WIRING HARNESS CONNECTOR, HARNESS, REEL, AND COMPUTER TO REPAIR SRS. *TR

NHTSA ODI #10365149

Mileage unknown · May 4, 2010
SteeringSuspension

2006 MERCEDES BENZ E320. CONSUMER WRITES IN REGARDS TO VEHICLE BEING CLASSIFIED AS UNSAFE *TGW THE CONSUMER STATED FROM THE DAY SHE DROVE THE VEHICLE OFF THE LOT, THE VEHICLE PULLED SEVERELY TO THE RIGHT. THE MECHANIC TEST DROVE THE VEHICLE WHEN SUDDENLY THE VEHICLE BEGAN SWERVING TO THE LEFT AND RIGHT. ALSO THE VEHICLE MADE A …

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2006 MERCEDES BENZ E320. CONSUMER WRITES IN REGARDS TO VEHICLE BEING CLASSIFIED AS UNSAFE *TGW THE CONSUMER STATED FROM THE DAY SHE DROVE THE VEHICLE OFF THE LOT, THE VEHICLE PULLED SEVERELY TO THE RIGHT. THE MECHANIC TEST DROVE THE VEHICLE WHEN SUDDENLY THE VEHICLE BEGAN SWERVING TO THE LEFT AND RIGHT. ALSO THE VEHICLE MADE A STRANGE SOUND WHEN THE CONSUMER BACKED UP AND TURNED TO THE RIGHT. *JB

NHTSA ODI #10329554

78,342 miles · May 23, 2009
Tires

A SET OF MICHELIN TIRES WAS PURCHASED FROM COSTCO AND MOUNTED ON MY 2006 MERCEDES ABOUT ONE YEAR AGO. THE MORNING AFTER THE FIRST 6,000-MILE TIRE ROTATION, THE FRONT TIRE ON THE DRIVER'S SIDE COMPLETELY SEPARATED FROM THE VEHICLE ON I-40 WEST OF ALBUQUERQUE, NM. COSTCO PAID FOR A REPLACEMENT TIRE AND DAMAGE TO THE RIM. T…

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A SET OF MICHELIN TIRES WAS PURCHASED FROM COSTCO AND MOUNTED ON MY 2006 MERCEDES ABOUT ONE YEAR AGO. THE MORNING AFTER THE FIRST 6,000-MILE TIRE ROTATION, THE FRONT TIRE ON THE DRIVER'S SIDE COMPLETELY SEPARATED FROM THE VEHICLE ON I-40 WEST OF ALBUQUERQUE, NM. COSTCO PAID FOR A REPLACEMENT TIRE AND DAMAGE TO THE RIM. THEN, ON MAY 13, 2009 ANOTHER ONE OF THE ORIGINAL SET OF MICHELIN TIRES SEPARATED IN A SIMILAR FASHION AGAIN ON I-40, NEARLY CREATING A MAJOR TRAFFIC FATALITY. THREE SEMI-TRUCKS ADEPTLY SWERVED TO AVOID COLLIDING WITH MY VEHICLE. THIS TIME, I HAD TO PAY $1,724 TO REPAIR DAMAGE TO THE SHOCK ABSORBER AND WHEEL WELL ON THE REAR END OF THE PASSENGER SIDE. THE COST ALSO INCLUDES $880 THAT I PAID FOR A NEW SET OF MICHELIN TIRES FROM THE MERCEDES DEALERSHIP, WHICH INFORMED ME THAT THEIR TIRES WERE NOT COMPROMISED BY EXTENDED STORAGE IN WAREHOUSES (I.E., DRY-ROTTING). COSTCO OFFERED TO PUT ANOTHER NEW SET OF THEIR TIRES ON MY VEHICLE, BUT I REFUSED TO TAKE THE RISK OF HAVING OLD DRY-ROTTED TIRES PLACED ON MY VEHICLE AGAIN. CONSEQUENTLY, COSTCO REFUSED TO PAY ANY OF THE $880 CHARGE FOR THE NEW MERCEDES DEALERSHIP TIRES. NOTE: THE FIRST INCIDENT WAS REPORTED TO THE POLICE AND AAA TOWED THE CAR ON BOTH OCCASIONS. *TR

NHTSA ODI #10269790

8,000 miles · Sep 22, 2008
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2006 MERCEDES BENZ E320. THE CONTACT TOOK THE VEHICLE TO THE DEALER EVERY 4-6 WEEKS DUE TO A LOUD SOUND COMING FROM THE BRAKES. THE VEHICLE WAS TAKEN TO THE DEALER AND THEY REPLACED THE BRAKE PEDAL, ALL THE SWITCHES RELATING TO THE BRAKES, THE COMPUTER WAS SHUT DOWN THREE TIMES, SENSORS WERE REPLACED, AND…

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TL*THE CONTACT OWNS A 2006 MERCEDES BENZ E320. THE CONTACT TOOK THE VEHICLE TO THE DEALER EVERY 4-6 WEEKS DUE TO A LOUD SOUND COMING FROM THE BRAKES. THE VEHICLE WAS TAKEN TO THE DEALER AND THEY REPLACED THE BRAKE PEDAL, ALL THE SWITCHES RELATING TO THE BRAKES, THE COMPUTER WAS SHUT DOWN THREE TIMES, SENSORS WERE REPLACED, AND THE BALL IN THE BRAKES WERE REPLACED, WHICH ALLOWED CARBON DIOXIDE TO LEAK INTO THE BRAKE SYSTEM. THE NINTH TIME THE VEHICLE WAS TAKEN TO THE DEALER, THE CONTACT WAS INFORMED THAT THE BRAKES COULD NOT BE REPAIRED. THE FAILURE MILEAGE WAS 8,000 AND CURRENT MILEAGE WAS 28,000. UPDATED 10/14/08 *BF

NHTSA ODI #10243094

Mileage unknown · Jan 21, 2007
Air Bags

ON DECEMBER 28 2006 I TOOK MY 2003 MERCEDES BENZ E320 TO MERCEDES BENZ OF MANHATTAN BECAUSE THE SRS (SAFETY RESTRAINT SYSTEM) LIGHT CAME ON IN THE DASHBOARD. THE TECHNICIANS DETERMINED THAT THE SRS CONTROL UNIT WAS MALFUNCTIONING AND NEEDED TO BE REPLACED. THE SRS CONTROL UNIT IS RESPONSIBLE FOR DEPLOYING THE AIR BAGS AND TENSI…

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ON DECEMBER 28 2006 I TOOK MY 2003 MERCEDES BENZ E320 TO MERCEDES BENZ OF MANHATTAN BECAUSE THE SRS (SAFETY RESTRAINT SYSTEM) LIGHT CAME ON IN THE DASHBOARD. THE TECHNICIANS DETERMINED THAT THE SRS CONTROL UNIT WAS MALFUNCTIONING AND NEEDED TO BE REPLACED. THE SRS CONTROL UNIT IS RESPONSIBLE FOR DEPLOYING THE AIR BAGS AND TENSIONING THE SEAT BELTS IN CASE OF AN ACCIDENT. I PURCHASED MY CAR USED FROM A NISSAN DEALERSHIP WITH A BUMPER TO BUMPER EXTENDED WARRANTY FROM QUALITYGUARD PLUS 615-725-1000 POLICY #QSDL01651641 EXPIRES: 07-01-2007. THE WARRANTY COMPANY WAS INFORMED OF THE ABOVE, BUT REFUSED TO PAY FOR REPAIRS CLAIMING THAT THE PART WAS NOT COVERED UNDER THE WARRANTY. I ASKED THEM WHY, AND THEY JUST REPEATED, ITS NOT COVERED. I THINK I DESERVE A BETTER ANSWER THAN THAT, ESPECIALLY WHEN IT COMES TO MY PERSONAL SAFETY AND THE SAFETY OF MY FAMILY. I THINK IT SHOULD BE COVERED. YOU ASSISTANCE WITH THIS MATTER WOULD BE APPRECIATED. *NM

NHTSA ODI #10179264

Mileage unknown · Jan 11, 2007
Exterior Lighting

IN MY OPINION, THE NHTSA DROPPED THE BALL WHEN THEY APPROVED THE HID AUTOMOBILE HEADLIGHT SYSTEM ON SOME NEWER MODEL CARS. THE GLARE THESE HEADLIGHTS PRODUCE IS VERY DISTURBING AND IN MY OPINION,THIS STANDARD SHOULD BE REVISITED AGAIN BY THE NHTSA, AND REVISED WITH NEW ANTI-GLARE PARAMETERS. *JB

NHTSA ODI #10178479

1,572 miles · Dec 20, 2006
Latches/locks/linkages

NO CHILD SAFETY LOCKS FOR THE REAR SEATS. THE CHILD IS ABLE TO OPEN THE DOOR WHILE THE CAR IS AT SPEED. THE DOORS DO LOCK AUTOMATICALLY AT 9 MPH BUT YOU CAN OPEN THE DOOR BY PULLING THE LOCK UP THEN PULLING THE DOOR HANDLE OPEN. *NM

NHTSA ODI #10176674

Official recalls

4

24V874000 · 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.

22V954000 · Visibility:sun/moon Roof Assembly

Dec 23, 2022

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2001-2011 C-Class, CLK, E-Class, and CLS vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The glass sunroof panel may not be properly secured and may detach.

Consequence & remedy

Consequence: A detached sunroof panel may 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 February 3, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. This recall expands NHTSA recall number 19V-918. MBUSA's numbers for this recall are 2023010004, 2023010005, and 2023010006.

21V196000 · Visibility:sun/moon Roof Assembly

Mar 19, 2021

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2007 C350, C230, C280, CLK350, E320CDI, E350 Wagon, E350, 2006 C55 AMG, CLK500, CLS500, CLS55 AMG, E500 Wagon, E500, E55 AMG, 2007 CLK550, CLS550, CLS63 AMG, E550, E63 AMG, and E63 Wagon AMG vehicles. The bonding between the glass panel and the sliding roof frame may deteriorate, possibly causing the glass panel to detach from the vehicle.

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. Owner letters were mailed May 7, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of recall number 19V-918. MBUSA's number for this recall is 2021040012.

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

1

PE10017 · Driver Air Bag Circuit High Resistance

Opened May 14, 2010 · Closed Nov 24, 2010

Status: closed (inferred from source dates) · Air Bags; Air Bags:frontal; Electrical System; Electrical System:wiring; Electrical System:wiring:interior/under Dash

Mercedes-Benz USA (MBUSA) has reported a high number of warranty claims for air bag warning lamp illumination due to a diagnostic fault code 9103 or 9123 indicating a high resistance in the driver's frontal air bag firing circuit.MBUSA's testing and evaluation have shown that this condition is the result of a faulty connector (specifically, improper wire crimp) but that it will not prevent proper deployment of the driver's frontal air bag.The faulty connector can cause the air bag circuit resistance levels to exceed the threshold that illuminates the air bag warning lamp, but they do not exceed a higher limit at which proper deployment of the air bag may no longer occur.The agency believes that further expenditure of agency resources does not appear to be warranted at this time.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.During the investigation, ODI learned that MBUSA will initiate a warranty extension program to address the faulty connectors in subject model year 2005 and 2006 E-Class and other MBUSA model/model year vehicles.This action will extend the warranty coverage for this issue to 10 years or 100,000 miles, whichever occurs first.MBUSA will notify all affected vehicle owners of this action.A bulletin describing this program is available in the investigative file.

Additional source detail variants (5)

Air Bags:frontal

Mercedes-Benz USA (MBUSA) has reported a high number of warranty claims for air bag warning lamp illumination due to a diagnostic fault code 9103 or 9123 indicating a high resistance in the driver's frontal air bag firing circuit.MBUSA's testing and evaluation have shown that this condition is the result of a faulty connector (specifically, improper wire crimp) but that it will not prevent proper deployment of the driver's frontal air bag.The faulty connector can cause the air bag circuit resistance levels to exceed the threshold that illuminates the air bag warning lamp, but they do not exceed a higher limit at which proper deployment of the air bag may no longer occur.The agency believes that further expenditure of agency resources does not appear to be warranted at this time.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.During the investigation, ODI learned that MBUSA will initiate a warranty extension program to address the faulty connectors in subject model year 2005 and 2006 E-Class and other MBUSA model/model year vehicles.This action will extend the warranty coverage for this issue to 10 years or 100,000 miles, whichever occurs first.MBUSA will notify all affected vehicle owners of this action.A bulletin describing this program is available in the investigative file.

Air Bags

Mercedes-Benz USA (MBUSA) has reported a high number of warranty claims for air bag warning lamp illumination due to a diagnostic fault code 9103 or 9123 indicating a high resistance in the driver's frontal air bag firing circuit.MBUSA's testing and evaluation have shown that this condition is the result of a faulty connector (specifically, improper wire crimp) but that it will not prevent proper deployment of the driver's frontal air bag.The faulty connector can cause the air bag circuit resistance levels to exceed the threshold that illuminates the air bag warning lamp, but they do not exceed a higher limit at which proper deployment of the air bag may no longer occur.The agency believes that further expenditure of agency resources does not appear to be warranted at this time.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.During the investigation, ODI learned that MBUSA will initiate a warranty extension program to address the faulty connectors in subject model year 2005 and 2006 E-Class and other MBUSA model/model year vehicles.This action will extend the warranty coverage for this issue to 10 years or 100,000 miles, whichever occurs first.MBUSA will notify all affected vehicle owners of this action.A bulletin describing this program is available in the investigative file.

Electrical System

Mercedes-Benz USA (MBUSA) has reported a high number of warranty claims for air bag warning lamp illumination due to a diagnostic fault code 9103 or 9123 indicating a high resistance in the driver's frontal air bag firing circuit.MBUSA's testing and evaluation have shown that this condition is the result of a faulty connector (specifically, improper wire crimp) but that it will not prevent proper deployment of the driver's frontal air bag.The faulty connector can cause the air bag circuit resistance levels to exceed the threshold that illuminates the air bag warning lamp, but they do not exceed a higher limit at which proper deployment of the air bag may no longer occur.The agency believes that further expenditure of agency resources does not appear to be warranted at this time.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.During the investigation, ODI learned that MBUSA will initiate a warranty extension program to address the faulty connectors in subject model year 2005 and 2006 E-Class and other MBUSA model/model year vehicles.This action will extend the warranty coverage for this issue to 10 years or 100,000 miles, whichever occurs first.MBUSA will notify all affected vehicle owners of this action.A bulletin describing this program is available in the investigative file.

Electrical System:wiring:interior/under Dash

Mercedes-Benz USA (MBUSA) has reported a high number of warranty claims for air bag warning lamp illumination due to a diagnostic fault code 9103 or 9123 indicating a high resistance in the driver's frontal air bag firing circuit.MBUSA's testing and evaluation have shown that this condition is the result of a faulty connector (specifically, improper wire crimp) but that it will not prevent proper deployment of the driver's frontal air bag.The faulty connector can cause the air bag circuit resistance levels to exceed the threshold that illuminates the air bag warning lamp, but they do not exceed a higher limit at which proper deployment of the air bag may no longer occur.The agency believes that further expenditure of agency resources does not appear to be warranted at this time.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.During the investigation, ODI learned that MBUSA will initiate a warranty extension program to address the faulty connectors in subject model year 2005 and 2006 E-Class and other MBUSA model/model year vehicles.This action will extend the warranty coverage for this issue to 10 years or 100,000 miles, whichever occurs first.MBUSA will notify all affected vehicle owners of this action.A bulletin describing this program is available in the investigative file.

Electrical System:wiring

Mercedes-Benz USA (MBUSA) has reported a high number of warranty claims for air bag warning lamp illumination due to a diagnostic fault code 9103 or 9123 indicating a high resistance in the driver's frontal air bag firing circuit.MBUSA's testing and evaluation have shown that this condition is the result of a faulty connector (specifically, improper wire crimp) but that it will not prevent proper deployment of the driver's frontal air bag.The faulty connector can cause the air bag circuit resistance levels to exceed the threshold that illuminates the air bag warning lamp, but they do not exceed a higher limit at which proper deployment of the air bag may no longer occur.The agency believes that further expenditure of agency resources does not appear to be warranted at this time.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.During the investigation, ODI learned that MBUSA will initiate a warranty extension program to address the faulty connectors in subject model year 2005 and 2006 E-Class and other MBUSA model/model year vehicles.This action will extend the warranty coverage for this issue to 10 years or 100,000 miles, whichever occurs first.MBUSA will notify all affected vehicle owners of this action.A bulletin describing this program is available in the investigative file.