CAMSHAFT ADJUSTER breakdown with only 70k miles on engine. Dealership asking for 6k for repair as extended warranty expired last year.

- Richardson, TX, USA

The components of the engine being the camshaft adjusters, timing guide, timing chain, valves and pistons that all work to deliver power are faulty and have failed literally mid-drive. I was on a busy interstate during rush hour and nearly lost control of the vehicle as it just powered out while driving at 70 mph then forcing a semi to nearly terminate myself and family. The dependability and safety is abruptly ripped out from underneath you. Without even being able to control the vehicle and it coming to an abrupt, unsafe hault. There were no warning signs. The vehicle has since been looked at and informed me that an extended warranty is in place for half of all the parts and labor above.all should be covered and for safety.my nerves are a wreck and without a way to afford an entirely new engine I am left to contend with car payments for an unsafe undrivable vehicle. Since then the dealership recognized my concerns but has since stated that without a modification to the extended warranty or it being made a recall that there is nothing that can be done.

- Celebration, FL, USA

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.

- Downey, CA, USA

MB have 51 000 miles at 1300 rpm acceleration getting rattling noise, just started two week.

- Menifee, CA, USA

over the last week I noticed a strong gas smell outside the car as I walk around in the back I check the gas cap and it seals normally and stronger than the smell that comes out of the gas cap

- Scottsdale , AZ, USA

I was told by the Mercedes Benz service center I take my car to that the timing chain and cam adjusters failed. I have a Mercedes Benz 2013 C250, with only 58,000 miles on it. I have my car serviced on time. I was driving my car on the highway, thank God I stopped at a local drugstore and when I tried to turn my car back on, only the lights will come on. It would not start up, and I had to have my car towed to the MB Hunt Valley service center where I get my car serviced. The Service Rep told me I had to have the timing chain, camadjusters, and lower guide rails replaced costing $6000. There is a extended warranty on the camadjusters which took the price down to 3600 which is still pricey. Which makes me wonder shouldn't the timing chaing also be under extended waranty. This type of event should only happen at least after the car reaches 100,000 miles. I have called Mercedes Benz customer service and awaiting for someone to call me back to see if they can assist. Awaiting a response as of 8/2/2021. I called after getting diagnoses which was 7/30/21. I have read numerous other reports of this same exact issue happening to other people. This is a extreme risk and safety matter that needs to be addressed by Mercedes Benz as a recall. Being newer model cars, the timing chain and camshaft adjusters should not fail, and most definitely not fail at 58,000 miles. Please look into this before someone gets hurt.

- Baltimore, MD, USA

I have several saftey recalls and performance recalls. Right now my car is not operable due to these recalls. There is no dealer on my island. This vehicle was purchased brand new from Hawaii and shipped to guam. The dealer is requesting us to ship back the vehicle to fix these recalls. Which will cost me about $10,000 for shipping. How do I go about this.

- Hagatna, GU, USA

Hello, I bought my car from local dealer, used with 69K miles. Delivered it with check engine light. Dealer claimed it was low windshield washer fluid. I test drive it and took car to my house. After a month, I went to Mercedes Benz service station where I found out the camshaft adjuster is out. Costing another $4900. I research more on this issue; this is a flaw in the Mercedes M271 engine. After a certain amount of mileage, the camshaft and timing chain have been malfunctioning in most Mercedes C250 cars. Mercedes did a recall on it years ago the camshaft adjuster solenoid is very faulty as it happens to most C250 vehicle owners. The check engine stays on every day, there are 1000S of people reported this issue with Mercedes.

- St Petersburg, FL, USA

The timing mechanism commonly fails in 2012-2013-2014 cars and the engine may stutter or totally fail. The local dealer wants $7820 to repair the condition in a car which had less than 58000 miles. The warranty is over at 50000 miles. The failure is common and there are many complaints on the internet and.many of the independent repair shops know about the problem. I can fax more details

- Columbia, SC, USA

I was driving on the highway doing around 70 mph and all of a sudden my car lost power and start shaking acting like it didn't want to go forward, I was afraid that it was going shut down on me and a lot of cars was coming behind me I was so afraid I was going to be in a bad accident, I was able to get over and come to a complete stop without incident, but I was afraid the car was going to shut off on me and not start back up but I manage to make it home because I was only a few miles away. The next day I took the car to be diagnose because the check engine light came on I went to the automobile repair shop to have it diagnose and the code came up for camshaft position sensors I had them replaced, then my car started hesitating to start and the check engine light would come on and then go off while I was driving and I would drive it for about 30 mins and the check engine light would come back on again stay on for a little while and go back off again, I took it to the dealership again and I was inform that it was the timing chain but I didn't believe it, because I had just replaced the sensors and the spark plugs and I didn't have that many miles on it and I have only had the car for 3 1/2 years, I still didn't believe it then my car started to hesitate on starting up and loosing power when I was driving it again, so I took it to another automobile repair shop that specialize in fixing Mercedes Benz and it came back with the same diagnose check engine light is due to timing chain, timing chain need replacing. I have already replace 2 camshaft position sensors on this car. I was told it will cost me around $5000 to fix it. I have always had my car maintenance service on time, I can't believe that this car is having this type of problems. I am so afraid to drive this car.

- Columbia, SC, USA

Engine start nocking while driving and then stopped, took it to Mercedes dealer, over $10000 to fix it, cam shaft adjuster failed and damaged cylinder head.

- Houston, TX, USA

Car lost power, didn't overheat. Found out the tension and timing and heads need replacing after 89,000 miles

- Greenville, TX, USA

The contact owns a 2013 Mercedes-Benz C250. The contact stated that the vehicle was taken for an air bag replacement at dick dyer Mercedes-Benz service center (5825 two notch rd, columbia, SC 29223) and the contact was informed that the vehicle cranked excessively while starting. The contact was informed that the timing mechanism needed to be replaced. The timing chain tensioner and camshaft adjusters, needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer was made aware of the failure. The approximate failure mileage was 57,800.

- Columbia, SC, USA

Whenever I accelerate engine light comes up and it turns into limp mode.this is a serious safety issue, alot of other people with the same vehicle as me are having same issues. This has happened more than 3 times, this is a error in high pressure fuel pump.

- Charlotte, NC, USA

At 46,000 miles my Mercedes Benz C250 began hesitating to start and then after starting made a slight grinding noise for 3 to 4 seconds. After the car had hesitated to start for several days the engine light then came on. When taken in for repair I was told the cam sensor as well as the cam gears needed to be replaced. I have done all scheduled maintenance on this vehicle and am a very conservative driver, as this car has very low miles for being a 2013 model. After a brief online search I found countless complaints from other consumers that had the exact same problem with their Mercedes Benz C250. If the vehicle is out of warranty the dealerships are unwilling to perform this work at any kind of discount because a formal recall has never been made for this engine model. This repair ranges in price from $4,000 to $5,000. This seems like an issue that urgently needs to be looked into as many consumers are being left to pay this excessive bill for an issue that I believe Mercedes Benz knows is a systemic problem with the engine in the C250 model.

- Riverside, CA, USA

Whenever I want to speed up to pass a vehicle or/and to enjoy a rapid accelarating engine light comes up and it turns into limp mode.this is a serious safety issue

- Miami, FL, USA

Takata recall. The contact owns a 2013 Mercedes-Benz C250. The contact received notification of NHTSA campaign number: 18V043000 (air bags). The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The contact stated that the passenger air bag warning indicator was illuminated. On one occasion, while the contact's vehicle was stopped, another vehicle crashed into its rear driver's side. The contact stated that the headrests detached due to the impact. The air bags did not deploy. The contact received injuries to the neck and back, which required medical attention. A police report was filed. The vehicle was able to be driven. After the crash, the ABS, air bag, and several other unknown warning indicators illuminated. Also, the brakes failed to operate properly and the vehicle began to stall. The contact took the vehicle to Mercedes-Benz of houston greenway (located at 3900 southwest freeway, houston, tx 77027, 713-489-211) where the brakes were repaired; however, the failures still occurred. The manufacturer was notified. The vehicle was not repaired. The approximate failure mileage was 62,000.

- Missouri City, TX, USA

Loud rattle at cold start up that last for approximately 5 seconds. Diagnosed by several mechanics as a known issue with cam shaft vvt. Cam shaft adjuster

- Buena Park, CA, USA

When the vehicle is stationary, it takes four clicks to turn over. After turnover, it idles rough, and makes a rattle noise around 1500 RPM. Mercedes ran a diagnostic and said it was a P034062 code and recommended replacing camshaft adjusters and camshaft adjuster magnet and seals. The cost was $4500. This is a very common problem in these Mercedes and I believe their should be a recall as this could cause engine damage while driving or pose a significant safety issue.

- North Charleston, SC, USA

Check engine light code, P0340, camshaft position sensor. Problem includes difficulty starting car, engine knock upon start, and misfires accelerating to pass at highway speeds.

- Salinas, CA, USA