While driving and changing gears from first to second, at or around 10 - 20 RPM my engine became uncontrollable and jerked sporadically. I could not control the vehicle until it changed into 3rd gear and then began to drive as normal. The car does this repeatedly now until I feel it has become unsafe to drive. The jerking is random so I don't know when to expect it and what to do when it happens. It has caused me to veer off the road occasionally.

- Norcross, GA, USA

Every time the gas tank is filled 100% full (only until gas pump nozzle first click) and the car is being driven for less than 20 miles and parked, I can smell very strong gasoline odor from outside the car. I have tried to find the issue and lifted it up. What can be seen is about 1oz of gasoline puddle on rear undercover (underneath gas tank). Other than that, I can see leaked dried gasoline path on the side of the tank, which points to the location of the puddle. This string gasoline odor issue cannot be seen or smelled if the tank is filled only 3/4 of tank volume. This is issue has been reported to Mercedes Benz service at columbia, mo. However, they quoted $600 just to find the issue, even though this is clearly manufacturing defect, since hundreds of similar cases can be found at several forums and so many has been reported here.

- Osage Beach, MO, USA

6/29/14 traveling when check engine light came on. Stopped and looked under hood, did not see anything out of the norm, drove it home. Drove a few days later to dealership. Found intake manifold faulty and cam adj maginet. Not repaired-$3000 quoted. Drove it home where it remains. Searches on internet shows this defect is under investigation. Also car rides rough; all four wheels are bent due to regular road wear and tear. Both these issues could have caused catastrophic consequences. I am not the first owner of this mb. Were mb aware of these defects and failed to inform me prior to purchasing the E350? the manufacturer needs to remedy these defects.

- Livingston, AL, USA

Check engine light came on. Took the vehicle to the local dealer and they found codes 1200, 1208, P0016 and P0017. Worn balance shaft sprocket. Doing research online turns out there are hundreds and hundreds of affected mb customers. Mercedes knew of this problem as early as 2007 but has not publicly addressed this issue or issued a recall. The bill to fix this issue is over $4,000, some people report the dealer quoting them over $10,000. My price to fix this is $5,995. My complaint is that this is a known issue by Mercedes. Knowingly they installed, and kept installing, parts that wear out prematurely leaving customers with an unfairly large bill to correct their mistake.

- Troutdale, OR, USA

The contact owns a 2007 Mercedes Benz E350. The contact stated that the check engine warning light illuminated. The vehicle was taken to an authorized dealer where a diagnostic was performed, which located the failure at the engine crank shaft sensor. The manufacturer was made aware of the failure. The vehicle was not repaired. The VIN was not available. The failure mileage was 81,000 and the current mileage was 82,000.

- Washington , DC, USA

The engine light came on and I brought my car into the local Mercedes dealer. The diagnosis result according to the service representative was a camshaft balancing rod problem and the estimate to replace the balancing rod was quote at $6500. I did subsequently look into this problem online and found that their are similar occurrences with this vehicle and the conclusion is that it is a manufacturing defect for this engine. The service representative agreed that it is too early for any engine to have this type of problem and called Mercedes Benz they decline to assist in this matter. Can NHTSA look into this problem and see if there is a problem with this engine? thank you

- San Francisco, CA, USA

Took in vehicle for check engine light. I was told that one of the cam magnets needed to be replaced (advised to have all 4 replaced). According to service adviser this is a very common problem for 2007 and prior year E-class vehicles and that the cam magnets have been redesigned to fix this issue. The complete replacing of the 4 cam magnets was more than $600 for service (before taxes). The service adviser also stated the other problem this vehicle consecutively comes in for is a faulty gas tank that is prone to crack which required the gas tank to be replaced. Mercedes-Benz should clearly address the above issues on this vehicle.

- Brentwood, TN, USA

Car was acting wield while driving at 55 or 65 mph on freeway for sometimes and suddenly engine got kill off completely on freeway 57 and I was almost got kill with this Benz. The car check engine light went on for a few days and then went off again and I don't know what is that means so I had the car scan check for problem but it showed nothing on computer. After the incident, I has it rescan again, and it showed a P0025 problem code pointing it to a faulty part "cam shaft retard on bank 2". on the next day I was googling to check out what is the P0025 code mean and then I had noticed that this type of faulty cam shaft part has been long award with many of the drivers. This is a very dangerous and very unsafe issue and I am filing a complain for this to the Mercedes manufacturer to have this resolve asap.

- Walnut, CA, USA