NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
6 reportsClear category filterMileage unknown · Jun 12, 2025
Air BagsEnginePower Train
The model/year Mercedes-Benz are well known for experiencing this/these particular issues. My research has shown that these year/make/model vehicles are experiencing the same type of mechanical failures nationwide. The issues all relatively begin around 75,000 miles. I've only had my car 3 years putting 30000 on it hardly dri…
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The model/year Mercedes-Benz are well known for experiencing this/these particular issues. My research has shown that these year/make/model vehicles are experiencing the same type of mechanical failures nationwide. The issues all relatively begin around 75,000 miles. I've only had my car 3 years putting 30000 on it hardly driven/cared for **Issue Found:** Oil was leaking onto the ignition coil and spark plug of cylinder 3. **Source of Leak:** Valve cover gasket failure. **Recommended Repairs:** - Replace the valve cover gasket (to halt the oil leak). - Replace spark plugs and ignition coil (which were contaminated/damaged by oil). **Relevance to Warranty:** The valve cover gasket is only covered if it fails as a result of an internally lubricated engine part causing damage. Ignition coils and spark plugs are maintenance items and are not covered by warranty plans. **Required Repairs (Identified Mechanical Issues)** - **Coolant Pipe Leak – $850** **Issue:** Coolant leaking from a pipe on the side of the cylinder head. **Relevance to Warranty:** Typically not covered unless it pertains to a failure in a covered system such as the water pump or cylinder head due to an internal breakdown. This is likely classified as an external plumbing component, which is not included. - **Oil Feed Line Leak – $600** **Issue:** Oil leaking from the side of the engine, traced back to the oil feed line. **Relevance to Warranty:** This is not typically covered unless the oil feed line is part of the oil pump system and has failed due to an internal issue (usually regarded as an external line). **Other Items Found (Worsening Issues)** - **Timing Chain Rattle / Cam Adjuster Noise – $6,000** -**Issue:** Rattling sound during startup. **Diagnosis:** Noise emanating from the timing chain and camshaft adjusters. **Relevance to Warranty:** This is covered under Secure Plus, as both the timing chain and camshaft adjusters are recognized as internally lubricated par
NHTSA ODI #11666448
Mileage unknown · Jan 27, 2025
Power TrainService BrakesSteering
Lost of drive power and the vehicle steering wheel locked on my mercedes from a damaged malfunctioning steering lock actuator module due to mechanical issues within the steering column such as bad steering wheel assembly, faulty steering lock module or issue with the wiring or other electrical components and the mercedes dealer …
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Lost of drive power and the vehicle steering wheel locked on my mercedes from a damaged malfunctioning steering lock actuator module due to mechanical issues within the steering column such as bad steering wheel assembly, faulty steering lock module or issue with the wiring or other electrical components and the mercedes dealer is the only one who solves this issue no other mechanic in general. My safety was at risk due to I lost power and lost of front brakes due to bad sway bar assembly or components could of caused and accident when this happened on November 12, 2024 the problem dealership found during vehicle inspection was code 25464 they told me recommend to replace electric lock module and repair estimate was $2,829.78 and before I approved the the amount I told Mr Ivan Velasco service advisor that after they replace the module that if my vehicle was going to be working again and that if I was just going to make 1 payment of $2,829.78 then I would approved it so I did. Weeks later I got an email asking for more money they wanted another payment for $600 saying it needed a sensor that has something to do with the transmission because after replacing the new module the vehicle did not start up there was no type of communications nothing at all and I responded that I was not going to pay $600 more just cause they don't know what their doing because they promise me the car was going to work after they replace the module now that it did not want to crank up they found another issue that's their fault on not doing there job the right way and for telling lies yes their was flashing blue or red icon on my dashboard that look like a car and a lock would go on and off and it displayed a message saying The theft protection is activated. I want to know if I can get this issue approved and to be considered a recall can you please help I'm so frustrating and mad that they want more money when it's already so expensive please help I would of appreciate it thank you.
NHTSA ODI #11638949
117,000 miles · Dec 30, 2020
EngineFuel/propulsion SystemPower Train
I HAVE BEEN HAVING ISSUES WITH MY VEHICLE SINCE I PURCHASED IT. STARTING WITH ME NOT HAVING ENOUGH POWER FROM A START, IN AN ATTEMPT TO GAIN ENOUGH POWER TO DRIVE AT A SAFE SPEED FROM THE START, AS IF THE VEHICLE LAGS & NO MATTER THE GASOLINE OR SERVICE, THE PROBLEM NEVER CORRECTS. WHEN I'M TRYING TO GAIN SPEED TO MAINTAIN WITH …
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I HAVE BEEN HAVING ISSUES WITH MY VEHICLE SINCE I PURCHASED IT. STARTING WITH ME NOT HAVING ENOUGH POWER FROM A START, IN AN ATTEMPT TO GAIN ENOUGH POWER TO DRIVE AT A SAFE SPEED FROM THE START, AS IF THE VEHICLE LAGS & NO MATTER THE GASOLINE OR SERVICE, THE PROBLEM NEVER CORRECTS. WHEN I'M TRYING TO GAIN SPEED TO MAINTAIN WITH THE FLOW OF TRAFFIC SAFELY THE VEHICLE LAGS NOTABLY BEFORE GAINING SPEED. I'M NOW HAVING TO REPLACE THE ENGINE BC THE OIL COOLANT HOSE BURST WHILE I WAS DRIVING ON THE HIGHWAY WITH MY CHILD IN THE CAR. MY CHECK ENGINE LIGHT ACTIVATED BUT THE ONLY NOTICE DISPLAYED ON THE DASH WAS THE ENGINE COOLANT WHEN IT WAS LOW. WHEN THE HOSE BURST WHILE I WAS DRIVING ABOUT 60MPH I HEARD A POP SOUND UNDER THE HOOD, SAW SMOKE COMING FROM THE EXHAUST, THEN A CLANKING NOISE UNDER THE HOOD THAT GOT LOUDER & LOUDER UNTIL I WAS ABLE TO PULL OFF OF THE HIGHWAY, & THEN I NOTICED A VERY LARGE AMOUNT OF OIL ON THE GROUND THAT LEFT A TRAIL ALONG THE GROUND FROM MY VEHICLE. THAT WAS VERY DANGEROUS AS MY VEHICLE LOST POWER DURING THAT INCIDENT. I'M TOLD BY THE MECHANIC, THE ENGINE HAS TO BE REPLACED. THIS HAPPENED WITHOUT A WARNING. THE MERCEDES BENZ IS SUPPOSED TO BE A SAFE & RELIABLE LUXURY VEHICLE & NOT A NIGHTMARE TO HAVE FOR THE OWNER.
NHTSA ODI #11385548
110,000 miles · Dec 11, 2018
EngineFuel/propulsion SystemPower Train
I BOUGHT THE CERTIFIED CAR AT 50K AND AT 70K MILES, RIGHT AFTER THE WARRANTY ENDED - CHECK ENGINE LIGHT CAME ON AND THE DEALERSHIP SAID IT WILL COST $8K DUE TO CAMSHAFTS TO REPAIR!! THEY EVEN SUGGESTED THAT I SHOULD CONSIDER TRADING THE CAR IN! KEEP IN MIND I STILL OWE $28K SO THAT OPTION IS OUT! SINCE THEN THE CHECK ENGINE LIGH…
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I BOUGHT THE CERTIFIED CAR AT 50K AND AT 70K MILES, RIGHT AFTER THE WARRANTY ENDED - CHECK ENGINE LIGHT CAME ON AND THE DEALERSHIP SAID IT WILL COST $8K DUE TO CAMSHAFTS TO REPAIR!! THEY EVEN SUGGESTED THAT I SHOULD CONSIDER TRADING THE CAR IN! KEEP IN MIND I STILL OWE $28K SO THAT OPTION IS OUT! SINCE THEN THE CHECK ENGINE LIGHT STILL ON EVEN AFTER I GOT IT REPAIRED AT A LOCAL/AFFORDABLE MECHANIC AND IT'S ABOUT 110K MILEAGE AND THE ENGINE IS RATTLING AS IT RUNS. THIS IS MY 3RD BENZ AND THE FIRST 2 FAILED DUE TO THE TRANSMISSION FAILURE. I JUST CAN'T BELIEVE THESE GERMAN CARS CAUSE SO MANY PROBLEMS AND SO COSTLY TO REPAIR. WHAT HAPPEN TO YOU PAY FOR WHAT YOU GET!!! TODAY, WHILE I WAS DRIVING THE CAR JUST SLOWLY STOP AND THE ENGINE CUT OFF! AAA CAME TO CHECK AND IT'S NOT THE BATTERY SO WILL NEED TO GET TOWED. STILL OWE $10K LEFT- I DON'T KNOW WHAT TO DO! NO OTHER CAR TO DRIVE .
NHTSA ODI #11160631
94,177 miles · Jan 19, 2017
EngineFuel System, GasolinePower Train
THE CEL CAME ON AND THE ENGINE WAS HAVING A ROUGH START . I TOOK IT TO THE REPAIR SHOP AND AFTER USING THE STAR DIAGNOSTIC SYSTEM THE DIAGNOSES WAS CAMSHAFT ADJUSTERS IN FAILURE. THE REMEDY REPLACE THE CAMSHAFT ADJUSTERS. COST $3500.00. *TR
NHTSA ODI #10946355
Mileage unknown · Oct 19, 2012
Engine And Engine CoolingPower Train
THIS WAS NOT AN ACCIDENT, IT IS, IN MY OPINION, A POSSIBLE SAFETY PROBLEM WITH THE VEHICLE - TURBO LAG; THROTTLE LAG; TRANSMISSION LAG. I ALMOST HAD TWO ACCIDENTS DUE TO THE LAG PROBLEMS, AND HAVE ATTACHED A MORE DETAILED ANALYSIS FOR YOUR REVIEW. TURBO LAG: THIS IS THE TIME IT TAKES FOR THE CAR TO GO FROM ITS NATURALLY ASPIR…
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THIS WAS NOT AN ACCIDENT, IT IS, IN MY OPINION, A POSSIBLE SAFETY PROBLEM WITH THE VEHICLE - TURBO LAG; THROTTLE LAG; TRANSMISSION LAG. I ALMOST HAD TWO ACCIDENTS DUE TO THE LAG PROBLEMS, AND HAVE ATTACHED A MORE DETAILED ANALYSIS FOR YOUR REVIEW. TURBO LAG: THIS IS THE TIME IT TAKES FOR THE CAR TO GO FROM ITS NATURALLY ASPIRATED POWER TO THE FULL POWER OF THE CAR AT FULL BOOST/ PEAK BOOST IS REACHED RELATIVELY LOW IN THE REVERSE RANGE, BUT IT IS NOT INSTANTANEOUS POWER LIKE A NATURALLY ASPIRATED ENGINE. THROTTLE LAG: THE DRIVE BY WIRE SYSTEM HAS A BIT OF LAG. UNDER CERTAIN CONDITIONS, I MEASURED IT AT .2 OF A SECOND OR SO. WHATEVER THE VALUE, THERE IS ALWAYS LAG THERE, AND WE ARE VERY SENSITIVE TO IT. HOWEVER, DRIVING INS MODE VS E MODE DOES MAKE SOMEWHAT OF A DIFFERENCE. NONETHELESS, THE CAR ALWAYS STARTS OUT IN E MODE WHEN I GET IN AND START THE CAR. WE DIDN'T PURCHASE THE CAR TO ALWAYS DRIVE IN S MODE. TRANSMISSION LAG: THIS I NOTICE SIGNIFICANTLY AND IT IS, IN MY OPINION, PROBABLY THE MOST ANNOYING TO ME. YOU'LL NOTICE THIS WHEN STOMPING THE PEDAL TO THE FLOOR AND THEN DOING THE WAIT... WAIT... WAIT.. DOWNSHIFT. EVEN IF THIS ENGINE WAS RUNNING ONLY ON ITS NATURALLY ASPIRATED FOUR CYLINDERS, THE TRANSMISSION SHOULD RESPOND IMMEDIATELY TO A SURE FOOTED STOMP TO THE FLOOR WITH THE QUICKNESS, AS DOES MY FOUR CYLINDER RAV-4. HOWEVER, THE MB C-250 DOES NOT! IN MY OPINION, YOU CAN RESET THE TCU ALL YOU WANT, THE DELAY WILL REMAIN.
NHTSA ODI #10481881
Official recalls
5Aug 13, 2021
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2015-2016 E400 Coupe, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2011-2014 E350 Coupe, and 2012-2014 E350 Cabrio vehicles. An incorrect front passenger air bag may have been installed during a prior repair.
Consequence & remedy
Consequence: An incorrect air bag may not function properly in a crash, increasing the risk of injury.
Remedy: Dealers will replace the front passenger air bag on the affected vehicles, free of charge. Owner notification letters were mailed on September 10, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
May 22, 2020
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2012 C250, C250 Coupe, C300, C350, C350 Coupe, C63 AMG, and C63 AMG Coupe vehicles equipped with a front passenger air bag assembly replaced under a prior recall. An incorrect replacement front passenger air bag may have been installed.
Consequence & remedy
Consequence: An incorrect passenger air bag may not provide adequate protection, increasing the risk of injury in the event of a crash.
Remedy: MBUSA will notify owners, and dealers will replace the passenger air bag module, 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 2020060011.
Jan 9, 2019
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014 C250, C300 4Matic, C350, C63 AMG, E350 4Matic Coupe, E350 Cabrio, E350 Coupe, SLS AMG Cabrio, SLS AMG Coupe, 2014-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, GLK 350, GLK250 BlueTec 4Matic, GLK350 RWD, 2015-2017 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2014-2017 E550 Cabrio, and 2014-2016 E550 Coupe vehicles sold, or ever registered, in the states of AL, CA, FL, GA, HI, LA, MS, SC, TX, PR, AS, GU, the MP, and VI or "Zone A." Additionally, MBUSA is recalling certain 2012-2014 C250, E350 4Matic Coupe, SLS AMG Cabrio, 2012-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, 2011 C300, 2011-2014 C300 4Matic, C350, C63 AMG, E350 Cabrio, E350 Coupe, SLS AMG Coupe, 2015-2016 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2011-2016 E550 Cabrio, E550 Coupe, 2011-2015 GLK350 4Matic, GLK350 RWD, and 2013-2015 GLK250 BlueTec 4Matic vehicles ever registered in the states of AZ, AR, DE, DC, IL, IN, KS, KY, MD, MO, NE, NV, NJ, NM, NC, OH, OK, PA, TN, VA, and WV or "Zone B." MBUSA is also recalling certain 2012-2014 C250, E350 4Matic Coupe, SLS AMG Cabrio 2012-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, 2010-2011 C300, 2010-2014 C300 4Matic, C350, C63 AMG, E350 Coupe, 2011-2014 E350 Cabrio, SLS AMG Coupe, 2015-2016 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2016-2017 E550 Cabrio, 2010-2016 E550 Coupe, 2010-2015 GLK350 4Matic, GLK350 RWD, and 2013-2015 GLK250 BlueTec 4Matic vehicles ever registered in the states of AK, CO, CT, ID, IA, ME, MA, MI, MN, MO, NH, NY, ND, OR, RI, SD, UT, VT, WA, WI and WY or "Zone C." These vehicles are equipped with air bag inflators assembled as part of the passenger frontal air bag modules that may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.
Consequence & remedy
Consequence: An inflator explosion may result in sharp metal fragments striking the passenger or other occupants resulting in serious injury or death.
Remedy: MBUSA will notify owners, and dealers will replace the passenger frontal air bag module, free of charge. The recall began March 29, 2019. Owners may contact MBUSA customer service at 1-800-367-6372.
Oct 6, 2017
Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Coupe, C43 AMG, C63 AMG Coupe, C63S AMG Coupe, C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63S AMG Cabriolet, GLC300 4Matic Coupe, GLC43 AMG, GLC43 AMG Coupe, 2014 E350 Coupe, E350 4Matic Coupe, E350 Cabriolet, E400 Hybrid, 2015-2017 E400 Coupe, E400 4Matic Coupe, E400 Cabriolet, 2014-2017 E550 Coupe, E550 Cabriolet, B250e, 2014-2016 E250 BlueTec, E63 AMG 4Matic Wagon, 2012-2013 E350 BlueTec, 2012-2016 E350, E350 4Matic, 2015-2016 E400, E400 4Matic, 2012 E63 AMG, 2014-2015 E250 4Matic BlueTec, 2013-2016 E350 Wagon, 2017 GLC300d 4Matic, and 2018 GLC350e 4Matic. The driver's air bag may unexpectedly deploy due to insufficient grounding of the steering components if an electrostatic discharge occurs and the air bag clockspring is broken.
Consequence & remedy
Consequence: If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.
Remedy: MBUSA will notify owners, and dealers will add sufficient grounding to the steering components, free of charge. The recall began in December 6, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.
Jan 10, 2017
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2012 C300 4Matic, C250, C250 Coupe, C350, C350 Coupe 4Matic, C350 Coupe, C63 AMG, C63 AMG Coupe, E350 Coupe 4Matic, E350 Cabrio, E350 Coupe, E550 Cabrio, E550 Coupe, GLK350 4Matic, GLK350, SLS AMG Cabrio, and SLS AMG Coupe vehicles originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above MBUSA is recalling certain 2009 C300 4Matic, C300, C350 and C63 AMG vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Additionally, unless included in "Zone A" or "Zone B" above MBUSA is recalling certain 2008 C300 4Matic, C300, and C350 vehicles originally sold, or ever registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence & remedy
Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Remedy: MBUSA will notify owners, and dealers will replace the front passenger air bag modules, free of charge. Owners were sent an interim notification in March 2017. Second notices started going out in October 2018 and continue to be mailed as parts become available. Owners may contact MBUSA customer service at 1-877-496-3691
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
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