Balance shaft and idle gear sprocket failure causing engine to misfire when idle or from warm start and cause idling during acceleration. Safety could be an issue if it causes greater internal damage or if the failure to accelerate fully may impact my ability to avoid an unsafe situation. Problem has been confirmed by a repair shop and has been admitted to be a common issue with M272 engine due to metallurgy defect during manufacture. This issue was part of a class action lawsuit against Mercedes Benz USA, which resulted in limited compensation to few people but a safety investigation was not conducted. MIL lamp does indicate an issue (P0016, P0017).

- Stanford, CA, USA

On Oct 25, 2022 while returning home from Denver International Airport the check engine light illuminated on the dash of my Mercedes Benz. The car was exhibiting increasing power loss and rough running which increased while driving north on Interstate 25 in heavy morning traffic. I was in doubt that he car would make it home. The car has been diagnosed subsequently the the Mercedes Benz m272 engine nance shaft gear problem with estimated cost to repair of US $6300. The car is definitely not dependable to drive with this problem due to the likelihood of failure in traffic.

- Loveland, CO, USA

The contact owns a 2007 Mercedes-Benz C230. The contact stated while driving approximately 25 MPH, the check engine warning light illuminated on the instrument panel. The contact took the vehicle to the local dealer to be diagnosed. The contact was informed that the balance shaft needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 110,000.

- Houston, TX, USA

Have a code p0016 p0017 I replace the camshaft balance sensor but it-??s not that. I found out it-??s balance shaft and I found out a lot of the people have the same problem

- San Francisco , CA, USA

Me, [XXX], and my ex-wife went to buy this car from a auto auction, plate where out state, but I figure wouldn't cost me much to register, bought it February 6, 2021 and I am kind of short in money to register car but then couple week after driving check engine pop up so I had free check engine by auto zone parts, so then it wasn't serious needed change oil change and filters, so I drove more so everything was going good ready for smoke check, but i didn't have the money so I ask my ex-wife to let me borrow money around May of month, so I was driving to her home, and out of no where I got hit in the front driver side lower fender from some silver low profile car, I was going 30's mile street but when I got hit by anomies driver the driver side bag pop up and also the passenger side too!! I was stunt and confused, wasn't a hard hit, driver that hit me run off, I pulled over the side of street. Couple light show up in dash board I don't recall what they said. I called my lawyer an he mention there was problems and recalls in a TAKATA air bag deploying. I did a research and sure enough my car had takata air bags. I contact to this number [XXX] Executive Referral Manager Mercedes-Benz USA, LLC One Mercedes-Benz Drive Sandy Springs, GA 30328-4312 Phone: 800-367-6372 ext. [XXX] Fax: 770-705-0152 On June 11, 2021. I made the report, on June 16, 2921 they sent a email that they will fallow up and investigate, I did sent pictures and mileage 150,000 around there so am still waiting for their action. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Valley Glen, CA, USA

I purchased a 2007 Mercedes Benz C230 sport from a private seller. I soon learned that the vehicle was in limp mode. The dealer said it was the transmission conductor plate. After hours of research, I discovered several owners of a Mercedes with the 772.9 transmission have been experiencing the same issue. I ended up paying $2500 for a new tcu from Mercedes Benz.

- Barstow, CA, USA

The car reached 110,000 miles and the balance shaft in my M272 is worn out I always take it to get it serviced I found out others had the same problem and created a facebook group I just don't think they should replace it with the same quality balance shaft if it continues to fail prematurely eventually I'll ruin my entire engine which I thought of Mercedes to be quality please help VIN# [xxx] redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Lawrenceville, GA, USA

Problem shifting gear. Only 47K miles. Stuck in the freeway only acceleration of 30 mph. Dealership diagnosis conductor plate $1800-2800 repair. VIN not available.

- Antioch, CA, USA

The contact owns a 2007 Mercedes-Benz C230wz. The contact stated that the check engine indicator illuminated. The vehicle was taken to Mercedes-Benz of scottsdale (4725 N scottsdale rd, scottsdale, AZ 85251) where it was diagnosed that the balance shaft needed to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 132,000.

- Tempe, AZ, USA

Engine cooling system major engine repair engine oil leak engine belt drive major oil usage rear R/discs & pads; the car was taken to the alexandria Mercedes-Benz dealership for check engine light; I rec'd a list of over $6,000 (above) worth of engine problems; I was also told that the cam sensors were bad; no cost was listed; I left the location, car started stalling and hesitating; took it to another local ntb dealer for a machine reading, and was told that a part of the engine manifold was broken - plastic part that controls the air flow and enables fuel flow; took it back to the dealer; they refused to repair my engine manifold; the car is now dangerous to drive; jumped out of gear on the major highway back to DC - all of this is a shock; the car has had all of its annual service; kept up; has had car cover; zi bought it new in 2007; now with only 40,000 miles, the engine should not disintegrate; the entire attitude of the alexandria mb dealership is horrific; as a consumer I was robbed and my safety and those on the road were endangered due to this poor service and possible inflated list of engine problems, one of which I was told they created. And at any rate, md is responsible for making certain these engine problems should not exist, after all this is not normal wear and tear; no one told me that the car engine was only good for 40,000!

- Washington, DC, USA

Check engine came on so I take it to the shop they said it was the crankshaft sensors code but that code was not for the sensors it was for the timing chain they said its not running on time so now to fix it they are charning me almost $4000 I hear and been reading that a lot of people have the same problem with this engine they timing goes off so I think this problem should be investigated its so much money not even the car is worth that miney no more

- Cicero, IL, USA

Takata recall!

- Fresno, CA, USA

2016 I took my 2007 Mercedes Benz C230, into Mercedes Benz to see why the check engine light was on. My car was purchased with 37K miles on it at the time I purchased it. How could such a major issue, arise in car so early in it's life. Mercedes stated, that they make the best quality of cars in the world! they stand by this slogan. However, why would such a major issue occur in a car with such low miles/usage? as I understand it, matters of this magnitude ideally does not occur in such a quality car, let alone in the cars infant stage or would likely happen at all! I was told sometime ago that Mercedes knew of this issue. I also searched the internet and discovered so many owners are having the same issue around the world. Mercedes has refused to correct, its defect it was well aware of! who allows Mercedes Benz, the platform to see these cars to consumers, without resolving the issue. Considering a person's financial investment in their purchase! can someone help me, understand how this has happened.

- Potomac, MD, USA

There are issues with the engine and the car will not start. There's a class action against Mercedes in regards to this same engine issue. The car was in motion when it cut off and another time after being stationary the car would not start. There was never a check engine light or any signs that indicated engine issues before the engine completely failed. I also received a notice about my airbag having a recall about a year ago and this issue has not been resolved.

- Baltimore, MD, USA

The contact owns a 2007 Mercedes-Benz C230. The contact stated that the vehicle vibrated and the engine warning indicator illuminated. The vehicle was taken to an independent mechanic who diagnosed that the camshaft failed. The manufacturer was not notified. The vehicle was not repaired. The VIN was not available. The failure mileage was 43,000.

- Salinas, CA, USA

The contact owns a 2007 Mercedes Benz C230. While driving approximately 55 mph, the vehicle failed to shift into any other gear after the check engine warning indicator illuminated. The contact pulled over and powered the vehicle off and back on; however, the failure persisted. The vehicle was towed to the dealer. The technician diagnosed that the intake manifold and exhaust manifold fractured. Also, the technician stated that the transmission module failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 109,000.

- Burlington, NC, USA

August of this year I had to get a speed sensor replaced that cost me $1200 because the vehicle would not go over 30 mph and was running at a high RPM. The vehicle demonstrated this problem over a year before I actually had to take it into a repair shop. I could usually pull over and cut the car off and cut it back on and it would correct itself which was totally ridiculous. Something really needs to be done pertaining to the faulty parts used to build these vehicles. I feel my $1200 also needs to be refunded back to me in a check form asap.

- Fayetteville, NC, USA

The contact owns a 2007 Mercedes Benz C230. The contact stated that the engine light illuminated intermittently. The contact mentioned that the vehicle exhibited failures related to loss of acceleration, electrical failures with the turning signals, air bag light illumination and exhaust system. The vehicle was taken to an independent mechanic. The technician diagnosed that the crank shaft sensor and the camshaft sensor were defective. Also, the actuator timing chain, balance shaft and the valve cover needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 13,000.

- Rancho Palos Verdes, CA, USA

I was on the fwy and then all of a sudden the car shut down on me it completely turn off. Since I bought the car it does the same problem when I'm on the fwy out of no where the car shut down. I have to wait a few minutes until I can turn on again I almost got into a huge accident with a big rig and I had my manager who witness how the car just shut down. I feel that the car is very unsafe steering wheel not stable correctly and I feel that it has some kind of engine and transmission problem but the weird part no check engine light comes up to diagnose the problem. I took the car to the dealership more then 3X and they said the car was perfectly fine.

- Lancaster, CA, USA

There is a known manufacture defect in the M272 engine. The engine balance shaft sprocket was made of soft metal which causes the drive sprocket to wear prematurely. This wear causes the timing of the engine to become off, which then causes the car to automatically go into limp mode. In limp mode, the car suddenly cannot be driven over 20 mph and the engine has to be shut off and restarted to exit limp mode. I approached a Mercedes Benz dealership and the estimate for the repair was over $7,000! this engine defect causes the car to go into limp mode and is very dangerous.

- San Antonio, TX, USA