What 435 owners told NHTSA about the 2015 Mercedes-benz C-class Hybrid

Structure,Body.Roof & Pillars

NHTSA ODI 11663519

Power steering malfunction Car unable to drive I believe there is supposed to be a recall for this issue but not popping up when I put in VIN number Warning lamps come up. Sometimes every light on dashboard. Took it to Mercedes but it was when code was not popping up and they said I needed a new battery. Did that but still an issue. Has also happened when driving. Sometimes collision assist plus light comes on and power steering acts up. Light I am pointing at in picture is another light that consistently pops up I have been able to intermittently fix problem by resetting computer by unplugging battery for 15min or longer. As well as confirming full service on vehicle. Now it isn’t working though.

NHTSA ODI 11660262

The contact owns a 2015 Mercedes-Benz C300. The contact stated that while driving at an undisclosed speed, there was an abnormal clunking sound coming from the front suspension of the vehicle. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the steering rack locknuts, observing that the steering rack had become loosened. The vehicle was not repaired. The vehicle was then towed to the dealer, who confirmed the diagnostic result. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 18V850000 (Steering), but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was 70,000.

NHTSA ODI 11659503

I took the car for annual maintenance to Mercedes-Benz dealership. After routine check up they came back to report rusty rear subframe and told me that needs to be replaced. However this part is really expensive and models from 2008 to 2015 C300 had the same issue(premature rust) and they all received extended warranty from Mercedes-Benz for free replacement. I wanted to report this safety issue for C300 model including mine that is not covered under extended warranty.

NHTSA ODI 11656453

Rear subframe broke while driving- made stearing/controlling/breaking car very difficult & dangerous.... After reviewing on internet- MB is aware of this problem

NHTSA ODI 11655962

Sunshade on panoramic sunroof broke off and tore sunshade. Took it to MB service center and was told it is known issue for that model and many more with some part snapping off causing the damage and cost to repair is between 2500-3000. Have been reading online and lot of people seem to have same issue with the panoramic sunroof and shade not syncing together. Seems to be concern manufacturer should be looking at if there’s numerous vehicle with same issues. Part snapped off when trying to open up sunroof on hot summer day

NHTSA ODI 11654223

Engine Light- Crankcase Ventilation Valve Replacement P052E71. Vehicle will jolt aggressively at the time of acceleration.

NHTSA ODI 11653609

The contact owns a 2015 Mercedes-Benz C300. The contact stated that while driving at 50 MPH and attempting to decelerate, the front end of the vehicle began to drift to the right while the rear drifted to the left. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the rear subframe. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 136,000.

NHTSA ODI 11653394

Have noticed a lot of air noise coming from the panoramic sunroof of my vehicle when driving, and now have issues of it opening or closing properly. I researched and found a recall regarding the issues my vehicle is having, and brought it into a dealership for diagnosis. Was told my vehicle VIN was not included in the recall. This is a dangerous issue that needs to be remedied. If the sunroof malfunctions I’m afraid it will come loose from the vehicle as it is doing the same things that the recalled VIN vehicles had issue with. Mercedes needs to update and add additional VINs to this recall. I did not repair, as I was told the entire thing will need to be replaced.

NHTSA ODI 11652756

The contact owns a 2015 Mercedes-Benz C300. The contact stated that while driving at approximately 70 MPH, there was a loud clicking sound coming from the panoramic sunroof. The contact stated that the sunroof then became inoperable. The contact became aware of NHTSA Campaign Numbers: 23V854000 (Structure) and 21V197000 (Structure). The dealer was contacted and confirmed that the VIN was not included in the recalls. The vehicle was not diagnosed or repaired. The manufacturer was informed of the failure and confirmed the VIN was not under recall. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 115,000.

NHTSA ODI 11648819

I took my vehicle to an independent repair shop for routine maintenance and while there I was advised that the vehicle is suffering from the subframe corrosion issue. I called the manufacturer service center and they took my VIN and said I was not covered under the bulletin. The independent contractor gave me an estimate to get it repaired, however Mercedes doesn’t even have the parts needed in stock as they are backed ordered nation wide. This is our only car and it now I am forced to drive an unsafe vehicle.

NHTSA ODI 11648255

Panoramic roof explode sound like a gunshot but the roof exploded

NHTSA ODI 11647581

The contact owns a 2015 Mercedes-Benz C300. The contact stated that approximately every 6-8 months, the vehicle sputtered while driving at various speeds or while idling. The contact stated that a month after the first failure had occurred, the front end of the vehicle lowered as if the shocks or hydraulic system had failed. The failure had occurred 3 times within a year and a half. The contact stated that after the second failure, the entire vehicle lowered several inches, and at the third failure, only the front end of the vehicle was lowered. The dealer diagnosed the vehicle and determined that the hydraulic pump and the connections from the shocks to the hydraulic pump had failed. The failure reoccurred approximately 8 months later. The vehicle was returned to the dealer who diagnosed the same failure and completed the same repairs. The failure reoccurred approximately 8 months later, and the vehicle was returned to the dealer who was unable to determine the cause of the failure. The vehicle was not repaired. The dealer provided the contact with a loaner while attempting to have the contact trade the vehicle. The manufacturer was made aware of the failure. The failure mileage was approximately 110,000. The VIN was not available.

NHTSA ODI 11646427

I had the sunroof opened and it almost blew off, if I didn’t pull over it would have. I took it to the shop and was told it is a manufacturers issue.

NHTSA ODI 11646561

The engine lamp turned yellow. The car got inspected by a mechanic and showed code. P052E, which indicates the defect in the crankcase ventilation valve. I see that many cars of the same model in which were produced about the same year had the same defect. I called the manufacture customer service and they claim that my van was not included in the recall. My vehicle likely had the same problem as other people did in the past, but for some reason my vin was not included.

NHTSA ODI 11642081

Rear subframe cracked while driving and rear of car sways from one lane to the next when brakes are applied. Car is not safe

NHTSA ODI 11641763

Check engine light came on, it has to be with the Positive Crankcase Ventilation Valve. So I found out that other people are experiencing the same thing. So I know that there is a recall by the manufacturer. And I want to do the same for me.

NHTSA ODI 11641447

Crank case ventilation Valve needs replaced. This is a hazard and multiple Mercedes owners have reported the same issues.

NHTSA ODI 11640652

failed piston wrist pins from early production of mercedes w205 c300. The issue was diagnosed by mercedes of manhattan and could not provide me a fix. Stated that the issue is common with the vehicle and it does not warrant a recall for this issue. i believe its a safety issue and my vehicle only has 60K miles

NHTSA ODI 11639535

Due to the type of fuel line and clamps used to fasten them, cold weather has caused them to shrink such that gas leaks, which comes through the car vents into the car cab and now into my [XXX] and [XXX] kids's lungs. Mercedes has issued a 10 year warranty on this specific feature, but it should be a safety recall unless we agree that inhaling gas vapors is okay for your health. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11638347

There seems to be a continuous gas smell in my car and I see some class action law suits for the same problem but dealership says there is no recall- synopsis of class action below February 26, 2021 — A Mercedes C300 fuel smell has led to a class action lawsuit that alleges 2015-2019 (W205) C-Class vehicles have defects that cause fuel leaks and odors. According to the Mercedes-Benz class action lawsuit, fuel can leak into the engine compartment from fuel line connections to the fuel pump at the rear of the engine compartment. Mercedes C300 and other C-Class vehicle occupants complain of strong fuel smells caused by the fuel leaks. Please assist

NHTSA ODI 11638428

The contact owns a 2015 Mercedes-Benz C63S AMG. The contact stated while driving at 30MPH in a School Zone, pieces of the panoramic sunroof detached. No warning light was illuminated. The vehicle was driven to the local dealer to be diagnosed. The contact was informed that the panoramic rails of the sunroof needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 42,500.

NHTSA ODI 11636322

The contact owns a 2015 Mercedes-Benz C300. The contact stated that while driving at various speeds, there was a sound of air entering the vehicle from the sunroof. No warning lights were illuminated. The vehicle was taken to a local dealer to be diagnosed. The contact was informed that the entire roof lining needed to be replaced. The vehicle was not repaired. The contact linked the failure to NHTSA Campaign Numbers: 23V854000 (STUCTURE), and 21V197000 (STRUCTURE); however, the VIN was not included. The manufacturer was notified of the failure. The approximate failure mileage was 50,000.

NHTSA ODI 11629702

The contact owns a 2015 Mercedes-Benz C400. The contact stated that while the vehicle was being serviced, the contact was informed by the dealer that the rear subframe needed to be replaced. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 112,000.

NHTSA ODI 11623121

P052e positive crankcase ventilation regularly valve. 2015 Mercedes Benz c300 turbo 4matic

NHTSA ODI 11618571