Mercedes-Benz C-Class Complaints

3,817 consumer complaints on file.

#11459285April 1, 2022
UNKNOWN OR OTHER
Check engine light Crankcase ventilation valve failure Mercedes dealer diagnostic
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11459104March 31, 2022
SEAT BELTS:CRITICAL FASTENERS
The contact owns a 2017 Mercedes-Benz C300. The contact stated that the seat belt latch plate failed to latch securely into the buckle of the seat belt while the contact was attempting to exit the vehicle. The contact referenced NHTSA Campaign Number: 21V032000 (Seat Belts). The vehicle was taken to the dealer to be diagnosed. The contact was informed that the latch needed to be replaced. The seat belt was repaired but failed to operate as needed. The manufacturer was notified of the failure. The failure mileage was 22,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11459021March 30, 2022
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
The contact owns a 2018 Mercedes-Benz C300. The contact stated while driving 35 MPH, there was white smoke coming from exhaust. The contact stated that the check engine warning light illuminated. The contact stated that after turning off the vehicle the smoke cleared. The vehicle was towed to dealer but was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 54,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11459024March 30, 2022
STRUCTURE:BODY, UNKNOWN OR OTHER
Vehicle was taken in for standard maintenance and I was informed that the rear sub-frame had a rusted through hole on one side and was rusting on the other. This vehicle is well maintained, garaged, and has normal annual maintenance with the dealership. There was no prior warning that this was an issue or "normal wear and tear" was causing this problem. The repair is quoted to be over 5k and I was told it is/will be essential because of a safety issue. Through some brief internet research, it appears like this is a larger problem and could have catastrophic problems if it is not caught before it fails.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458658March 28, 2022
FUEL/PROPULSION SYSTEM
ONLY HAVE 35,000 MILES AND RECEIVED POSITIVE CRANK CASE VALVE
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458727March 28, 2022
FUEL/PROPULSION SYSTEM
Got error code P052E when performing state inspection for my car. This looks like "Positive Crankcase Ventilation Regulator Valve" issue and have seen lot of people who owns Mercedes Benz reported this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458435March 26, 2022
STRUCTURE:BODY
What component or system failed or malfunctioned, and is it available for inspection upon request? The rear subframe rusted off at where the lower control is connected due to corrosion =. How was your safety or the safety of others put at risk? When the control arm rusted off the frame I lost control of the car due fish tailing and car extremally pulling the to the left while hitting the brakes Has the problem been reproduced or confirmed by a dealer or independent service center? Yes Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? no Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no warning lamps for the frame, it finally appears and almost caused me to crash after the control are finally rusted off the subframe completely.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458444March 26, 2022
SERVICE BRAKES, SUSPENSION, STEERING
While driving normal highway speed and braking suddenly the car violently pulls to left. Same occurs when driving normal city traffic . Good afternoon I am following up on a major safety issue #11453988 concerning a 2013 C300 Mercedes. I reported this a few weeks ago as this safety defect can cause personnel injury when the defective part fails . As noted earlier during normal braking the car pulls hard to left or right . With normal highway speed driving and emergency braking the car will violently pull left or right possibility into oncoming traffic and or fixed objects . Please reply with update into this major safety defect concern . PS the part number in question has been changed from number 2043500141 with new number 2073509702. This part is not available in the US currently and has a lead time of 30 days from Germany. With the long lead time and the need to travel to work it is a major safety issue that can be avoided. Thanks George
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458092March 24, 2022
ENGINE
The camshaft adjuster failed on my vehicle and created start up issues and had to be replaced at 123K miles. While not an immediate safety concern, the camshaft adjuster failure could lead to engine failure and is an inherent issue in this vehicle make and model. This is a flaw in the vehicle and Mercedes did not notify me of any recall or warranty terms.The repair code was confirmed and repaired by an authorized Mercedes dealer for $2800.There were no warning lamps however I experienced engine start up issues. I contacted Mercedes as was advised they would open a case to review potentially partial warranty coverage however did not receive any type of resolution.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458106March 24, 2022
AIR BAGS, SUSPENSION
The contact owns a 2013 Mercedes-Benz C300. The contact stated that the air bag warning light was illuminated on the instrument panel. Upon taking the vehicle to the dealer, they discovered corrosion underneath the rear subframe. The corrosion caused 2-inch sized holes to be formed on the passenger’s side of the rear subframe. The dealer also discovered corrosion on the wire of one of the seats which resulted in the air bag warning light being illuminated. The manufacturer had been notified of the failure and agreed to cover 50% of the cost for repair of the vehicle. The vehicle had yet to be repaired and remained in the possession of the dealer. The failure mileage was approximately 119,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458118March 24, 2022
WHEELS
There wasn’t any warning lamps prior to my rear right tire exploding on highway.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458126March 24, 2022
TIRES, TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS
The tire exploded on highway,left sever damage on my car. The dealership ruined even more by trying to fix it. I think this tires are not safe to drive on the road. since I didn’t use the car less then 4000 miles a year.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458128March 24, 2022
SUSPENSION, SERVICE BRAKES
From the mechanics notes: Four-wheel alignment could not be completed. Attempts to align the rear axle were unsuccessful due to flexing/movement in the rear suspension. A brief road test revealed occasional suspension “clunking” coming from the rear of the vehicle. Close examination of every suspension component mount revealed heavy cracking on the passenger side lower drag link subframe mount (see emailed image). The driver’s side low drag link mount location is also starting to show signs of overstress and rust/flaking. This is a known design defect that has been the subject of a manufacturer’s recall in Canada. Given the substantial safety impact of this design defect/failure, it is expected that a US recall will be forthcoming. Proper repair of this failure involves removing the entire rear axle/subframe assembly and either rebuilding/re enforcing the subframe or replacing it with a new unit and transferring all the suspension components to the new subframe. A current check of subframe availability is showing NLA (no longer available) status from Mercedes wholesale dealers – likely due to recent high demand and inability to satisfy that demand. This supply issue may also be playing a role in Mercedes’ failure to address this high level safety issue with a US based recall campaign. The manufacturer may be ramping up production of this component to address anticipated need – waiting to announce a recall when it has sufficient parts on hand to execute the campaign. It is strongly recommended that you file an NHTSA complaint for this issue and limit driving until the problem is rectified either independently or under the auspices of a recall campaign. The passenger side rear drag link has not yet completely separated from the subframe but is likely to do so soon which can result in an accident or loss of control as this critical suspension link is responsible for maintaining steering direction of the right rear wheel.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458248March 24, 2022
POWER TRAIN
electronic rear axle lock problem. A recall was issued before but manufacturer has not done anything; therefore when the car is taken in, the dealer asks for a hefty $400 inspection fee
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458079March 23, 2022
ENGINE
PCV (Positive Crank Ventilation) error fault. Error message keeps coming and is affecting a large number of vehicles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11457824March 22, 2022
AIR BAGS
i was involve in a accident, i was Tbone and the driver side airbags didnt deploy.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11457695March 21, 2022
SUSPENSION
While traveling on the interstate @ 60 MPH, I loud knock was heard in the right rear. When brakes were applied, the vehicle pulled to the left, severely. Vehicle was taken to a mechanic on this date after making an appointment. Photos included show the issue as to why this occurred. The 'cradle' of the rear suspension on both, the left and right sides were completely rusted through. The vehicle is a 2011 Mercedes-Benz C-300, with 63,000 miles. After researching this on line, it appears this is an on-going issue with this year along with other years. This, is huge safety issue and the results could be catastrophic to the occupants and or other operators.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11457290March 18, 2022
WHEELS, STEERING, UNKNOWN OR OTHER
I noticed that my car was pulling heavy to the left when I stop and strange noise in the rear of the car, after taking the car to the mechanic he told me that the car rear subframe on my 2013 Mercedes Benz c300 was rotted, the control arm bracket completely broke off on the left side and the right side is also cracked. it appears that this is a common issue in areas of heavy road salt usage during winter months, the dealer told me that the car has a rotted rear subframe problem and the subframe could break out in months.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11456933March 16, 2022
POWER TRAIN, ENGINE
MY VEHICLE'S Positive Crankcase ventilation valve NEEDS REPLACING. AFTER RESEARCHING THIS ISSUE FOR A WEEK IM LEARNING THAT THIS IS A VERY COMMON ISSUE WITH MY VEHICLE'S MAKE MODEL AND YEAR AND IS LIKELY TO OCCUR MORE THAN ONE TIME IN THE VEHILES LIFETIME. THE PROBLEM HAS BEEN CONFIRMED BY AN INDEPENDENT SERVICE CENTER I WAS MADE AWARE OF THE ISSUE BY MY VEHICLE'S CHECK ENGIN LIGHT
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11456951March 16, 2022
FUEL/PROPULSION SYSTEM, STRUCTURE:BODY
Gas smell while driving.Not reported
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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