general problems of the 2010 Mercedes Benz C300

Got a car from the dealer soon weeks after the rear subframe was so corroded alignment was able to get done and was snapped on both sides airbag light came on doesn’t go away and the rear right brake like started using the fog light as a turn signal.

Due to the corrosion in the rear subframe both side of lower control arms snapped the tires to the car are wearing out due to the corrosion in rear subframe and it’s was also hitting my gas tank if I was to go over any holes which can cause a bigger issue.

The contact owns a 2010 mercedes-benz C300w. The vehicle was taken to the dealer for an alignment. The contact was later informed that the wheel alignment was not fully completed due to extensive corrosion on the subframe. The contact picked up the vehicle and upon investigation discovered that there was a warranty on the vehicle for the corrosion of the subframe. An appointment was scheduled, and the vehicle was taken to the dealer where it remained for two weeks. The contact was later informed that the condition of the vehicle did not reach the warranty standards for repair. The vehicle remained in the possession of the dealer unrepaired. The manufacturer was notified of the failure and the contact was informed that dealers were independently owned and made their own decisions on warranty repairs. The failure mileage was approximately 63,000.

Rusted rear sub frame that needs to be replaced. Premature rusting that mercedes needs to repair at no cost. Also, premature battery drain on new battery. Needs to be fixed by mercedes at no cost.

Rear sub-frame failure almost caused a head on collision at slow speed. Hit brakes and my car fishtailed completely sideways. . - many many complaints similar to mine on same issue, all on mercedes C300. Some have reported to this website in hopes for recall and correction by mercedes. It is extremely dangerous, and expensive to fix. You also do not know there's an issue until too late. Subframe rusting almost from inside out. My control arm fell right out and was hitting the gas tank! I'm thankful to be alive, this needs to be resolved. There are pictures on this forum that look exactly like mine. How sad. Https://mbworld. Org/forums/c-class-w204/661024-2009-c350-crack-rear-subframe-2. Html thank you for your time. I'm sure you will have many more complaints like this one as chat group considering filing class action if mercedes does not recall and correct issue. Sincerely, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The rear subframe of the car rotted out, making the car dangerous to drive. This problem has been identified by mercedes and is considered a safety hazard in canada and europe. This problem should also be covered here in the USA. Unfortunately Mercedes Benz USA will not offer any help here, instead trying to charge customers more than $7,000. 00 for the repair. A frame should last the lifetime of a car, especially when the rest of the car has no to little rust on it. The subframe is available for inspection, broken suspension puts everyone in and around the car at risk while it is on the road. This issue was inspected and confirmed by a local mercedes dealer and a local mechanic. There were absolutely no warnings of the issue before it happened.

Rear subframe completely rusted through resulting in multiple attached systems to break off. When applying the brakes the rear end of the vehicle swings and can force the car into random directions. Upon any basic research this issue can be seen in similar mercedes models across the globe consistently. If the issue was not diagnosed sooner the likelihood of a fatal crash would have been extremely high due to critical components like braking and suspension systems being nonfunctional. Many vehicles that experience this design flaw are well maintained and kept in good conditions. I urge the NHTSA to release some kind of warning to owners of these vehicles because this issue can blindside even the most vigilant owners. Many posts regarding this issue describe nearly avoiding severe accidents. Please do not let this go unheard because it can be fatal if not addressed.

Car not able to be driven rear subframe had completely rusted out and rear light housing is burn.

The dealer noticed that the rear suspension subframe had rusted and corroded with a hole. They rejected the passage of the state safety check. A review of online forums shows this is a common problem in these years and canadian and german counterparts of mbusa have issued recalls because a third party supplier provided the parts without sufficient corrosion protection. See eg. Https://mbworld. Org/forums/c-class-w204/805501-rotted-rear-subframe. Html.

The rear suspension cross member has rusted out on both sides. The rear wheels turn during braking, causing the vehicle to swerve. This is a original materials defect or design flaw.

My husband drove my car home from work on April 18th 2022 and it was a bad rain storm that everyone. He had to drive through a couple of big rain storms. Soon afterwards he got around the corner from the house and the electric system failed lights started going off everywhere in the car, he lost steering and couldn’t see and almost crashed and got the car home safely but it wouldn’t shut off so he had to disconnect the battery for the car to shut off. On April 22 nd the car was towed to the dealership because it wasn’t driveable and they check out the car and discovered water under the carpeting of the drivers seat near the wiring of the car. I submitted an insurance claim and an adjuster went out to see the damage and his thought is that it’s due to a known problem for this car that’s been reported by many people with this same vehicle. The Mercedes Benz C300- 2010-2014 years. I checked online and apparently many people have reported this same issue water underneath the car due to bad firewall manufacturered not sealed correctly which could be a manufacturers/ safety issue. My husband was almost killed thank goodness he made it home safe that night. I believe there are many people that have had this issue and someone needs to be done for safety purposes, and I believe the insurance doesn’t want to cover the repairs because they are blaming mercedes’ benz. My cars been in the shop a month and I still have no answer from state farm or the shop Mercedes Benz.

Driver side subframe broke in half due to rust. However, vehicle has low mileage and was very well maintained and is in mint condition throughout with no signs of rust anywhere underneath on any parts. This subframe rusted through from the inside and with no way of being able to see or catch any warning signs for owners.

Rear subframe failure due to corrosion. Car has approximately 130k miles. Based on internet reasearch, this is a common issue with the C300 w204 mercedes’ car. It’s a serious safety issue and warrants a recall before someone is killed. Failures have happened for this car at various miles on the odometer, without warning.

The rear subframe of this vehicle is made of faulty materials and has completely rusted out leaving the suspension components which connect to it in danger of failing. The left rear wheel connecting trailing arm has already detached from the subframe. There have been numerous complaints about the 2010-2013 mercedes C300 w204 rear subframe, many of which share exactly the same failure as my own. It is a known problem with this generation of mercedes.

I am the original owner of this car having purchased in on February 01, 2010. Recently, after getting my wife's c class back from a service at the mb dealer, she started to complain about it's strange handling. I went out with her and noticed that while traveling in a straight line under braking the car would swerve severely with the rear of the car oversteering in one direction and the front of the car diving in the opposite direction. I was able to observe the right wheel/tire toeing out under braking with the outside right mirror tilted down. I jacked up the right rear of the car and removed the wheel and found a crack on the rear subframe near a flange holding a suspension link. Under any braking the crack allows the entire wheel/brake assy to steer the car. This fracture of the subframe created a very unsafe driving condition. The car was delivered to mb of wilmington DE and inspected by their head tech and a representative of mbcc. I was told that due to the age of the car, 10yrs. 14days, 94k, that mb would not help out with the repair. I then did some research on the mb forum and found a number of owners with newer and older cars having the same problem and mb refusing to fix or acknowledge the problem.

Tl- the contact owns a 2010 Mercedes Benz C300. The contact stated that while driving at a low rate of speed, he could hear a grinding noise coming from engine without warning. The contact took the vehicle to mercedes-benz of fort washington 404 pennsylvania Ave, fort washington, PA 19034 where the vehicle was diagnosed with a defective barring in the transfer case. The contact took the vehicle to an independent mechanic where the transmission replaced. After the repair, the contact then took the vehicle back to the same dealer to be serviced for recall NHTSA campaign number: 19v010000 (air bags). Upon inspection of the vehicle, a mechanic explained to him that his sub frame was corroded and needed to be replaced. The manufacturer had not been notified of the failure. The sub frame had not been repaired. The failure mileage was 96,000. Jo.

Tl-the contact owns a 2010 Mercedes Benz C300. While driving at various speeds the brake pedal was applied but vehicle was unstable. There were no warning lights illuminated. The vehicle was taken to mercedes-benz of louisville 2520 terra crossing blvd, louisville, ky 40245 (502) 565-4410 where diagnosed that the sub frame was rusted, broke , and un drive able but was not repaired. The manufacturer was contacted but did not assist. The failure was mileage was 94,000. Ap.

I was driving my 2010 C300, 99,000 miles at approximately 40 mph when I experienced a nearly fatal collision. When I applied the brakes, I experienced a failure of the rear cross-member subframe which caused the rear left wheel to deviate in a such a way that caused the rear of the vehicle to fishtail. I had to fight to regain control of the vehicle and avoid a head-on collision. I drove the vehicle to a nearby mechanic who pointed to a break in the sub-frame where the rear-left tire suspension components attached to the rest of the car. The break appears to have manifested where the sheet metal components were welded to form a bracket in the subframe. I live in a state where annual safety inspections are carried out and the vehicle has passed such inspections with no past indicators of rust. The safety inspection focuses on the structural integrity of components such as suspension and frame. The most recent state safety inspection was carried out on September 2018, at 97,000. Furthermore, at 90,663 miles, mercedes-benz dealer conducted a thorough inspection of the vehicle and did not notice any issues with the subframe, suspension, or any other components of the vehicle. Near-fatal, catastrophic failures should not take place on a modern luxury car that is less than 10 years old, unless there is a manufacturing defect. However, mercedes-benz USA refused to consider a manufacturing defect and made the determination without reviewing photos of the structural brake. Note that based on my research, NHTSA id numbers 10504684 and 11023618 speak to similar rust issues to the sub-frame. Please investigate and launch the recall campaign.

My car made a electric shortage and the car won't turn on so I had to take it to a shop and they told me the car had to be programmed again so it could turn on .

The rear subframe rusted and broke.

Original tires with 29000 miles. . . . . . . . Continental tire left front shredded on freeway, total seperation of rubber from rim, contacted continental ceo dr. Jochen etzel, was referred to customer and then to warranty and property damage, filed a claim which was rejected after 4 months because I didn't provied the shreeded tire. Continental refuses to take any responsibility for their product virtually disintegrating without warning. This is totall unacceptable, I have replaced all four continental tires and will never purchase any continental product again.

The rear subframe is rusted out and this is a big saftey concern by Mercedes Benz for 2008-20014 and they know the problem as there are alot of complaints. There were recalls in europe for this and not in USA. This needs to be taken care of by mercede-benz.