At about 87,000 miles, the car is essentially useless because of a known defect. The balance shaft, engine intake manifold and transmission conductor plate need to be replaced. Mercedes will not take responsibility even though there was a class action lawsuit.

- Wilmington, DE, USA

The engine dies suddenly while driving. Cause unknown. Car will restart without trouble, but the suddenness of the problem is really startling and could be very dangerous on the freeway or on a winding road at speed.

- Portland, OR, USA

While driving on freeway, engine suddenly revved high and almost red-lined on RPM gauge. Exited freeway and RPM (while lowered) was still high. A 3rd party mechanic diagnosed transmission valve body failure and advised on replacement. This must be a a known issue because mechanic asked that in order to replace the part a valid personal id must be recorded as part of the parts replacement per Mercedes.

- South San Francisco, CA, USA

In 2011, I purchased my vehicle from a dealership as certified/preowned at 46,717 miles. Regular maintenance was kept up at the dealership. In 2015 at 74,563 miles, I brought my vehicle in for 2 problems: A check engine light had come "on" and my vehicle was experiencing vibrations from the power train when turning and shuddering when making sharp turns at low speeds. The check engine light was a result of a balance shaft engine problem which was, at the time, in a class action suit regarding this problem for these vehicles. The manufacturer agreed to pay a portion of my repair for the balance shaft issue. The second problem turned out to be a transfer case issue. The dealership stated I had a bad transfer case and they recommended I have the transfer case replaced. At the time, I could only budget myself for the balance shaft repair and 4 new tires. The transfer case oil was changed which slightly improved the vibration/shuddering issue. I currently still have this issue more severely and require the transfer case be replaced. My vehicle's transfer case oil was changed at 30K miles by the previous owner. Through research, I have discovered that in January 2009, a manufacturer bulletin came out that specified my vehicles VIN number was included in the stated problems with the transfer case. They had installed defective transfer cases at production in 2007 and should remedy this! I have spoken to the manufacturer and they will only pay 25% of my parts for this repair which leaves me with a $3200 bill for a problem they knew about. On many occasions, while waiting for my vehicle to have maintenance completed, I over heard service representatives speaking to other customers by phone or in person. The service reps indicated in many instances that the problem the customer was having with their vehicle was due to the transfer case. These transfer cases should be recalled!

- Waterford, CT, USA

The automatic transmission would not shift properly. Very dangerous. It is a seven speed automatic transmission but seemed to stay in a high gear so the vehicle did not accelerate. It would not go into reverse. It occurred on a major highway. The me dealer said the repair will be about $2300 this should be a recall. Safety hazard.

- Locust Grove, VA, USA

30 Aug.16 took my 07 E350 with 29427 miles to the dealership because the check engine light came on and the car was hard starting. After arriving I informed the service writer the car had shut down while driving. We were proceeding through a busy major intersection when the car shut down. Luckily it started so we could safely exit the busy major intersection. After a diagnostic test was ran, I was informed the crankshaft hall sensor was defective. Additionally, the engine control unit, engine wiring harness, crank sensor and various other components are oil soaked. I notified Mercedes Benz to be told the car was out of warranty. Mercedes Benz should be held accountable for the unsafe defective materials they use. The above issues are a danger to the occupants and general public as well. The defective oil soaked wiring harness is can cause a fire. The car shuts down while driving is dangerous.

- Radcliff, KY, USA

The front inner tires get cupping over the time, I have to replace them every 10,000 miles. All the suspension parts are new put still the problem going on. It is a manufacturing problem with the heavy engine get the load on the power train and with the time it losing and make the tires cupping from the inner side.

- San Diego, CA, USA

Transmission. It is my understanding that this year and model car has known transmission problems.

- Nashville, TN, USA

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

Transmission does not downshift when you try to stop, it chokes and dies. Transmission is stuck on the 3 gear and does not downshift.

- Houston, TX, 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 above date is an estimate: Transmission slips causing car to stall and almost got rear-ended. Took car that was under warranty to dealership and they could not find an issue with transmission. Problem have gotten worst. Googled issue and found a lot of complaints about the same issue. The more serious problem is my car reeks with the smell of gasoline. Took car to same dealer and they said they fixed the problem but my car still smell of gasoline. I actually get nausea when driving and eyes began to burn. If I was a smoker, I would be afraid to light a cigarette in my car. My garage also smell of gasoline when I park. Wsbtv in atlanta did a series on this issue last month because of the many complaints. Someone will be injured or killed if these issues is not address. Dealer is Mercedes Benz of South atlanta.

- Stockbridge, GA, USA

While entering the freeway, the transmission disengaged and failed. The vehicle was steered to the shoulder. The dash lights all changed to red and the transmission would not engage. After shutting off the engine and restarting the vehicle, it performed normally until last week. The same failure occurred three times last week. After restarting the engine the car was taken to the closest non-dealer service center and a reset of the transmission speed sensor was performed electronically. I was advised that this is a common problem with model and that I would need a new set of valves, sensors, seals etc.

- Fountain Valley, CA, USA

The contact owns a 2007 Mercedes Benz E350. The contact stated that the vehicle would jerk violently when shifting gears. Also, while driving 20 mph the vehicle would not shift into second gear and stalled without warning. The vehicle was taken to the dealer for inspection but they provided not assistance. The vehicle was not repaired. The manufacturer was notified and filed a complaint and stating that the vehicle was not under warranty. The failure mileage was 113,000.

- Little Elm, TX, USA

I bought this car about 4 months ago. This car has been serviced religiously at the local Mercedes dealer and there has been "no know problems". on a Thursday I noticed the car shifting a little funny so I had my husband drive it just to be sure. He noticed the same erratic shifting. On Saturday I dropped the car off at the Mercedes dealer (same dealer it has always been serviced at). When I parked the car I wanted to check each gear just to make sure and what do you know...it would not shift into reverse. Later that day I had to call Mercedes to find out what was going on with the car and they proceeded to tell me the car had metal shavings in the transmission pan and would need a new transmission. The quote for a new transmission is $5800!!! I don't understand how the car did not give me any warning nor an indicator light. The car only has 60K miles on it and in no way should need a new transmission. Also, keep in mind the transmission was serviced at this same Mercedes dealer at 39K miles. Something is not right and I want answers. I am completely shocked and so upset.

- Kiln, MS, USA

The check engine light came on and the engine started making a "clicking" noise. I took the car to the Mercedes dealership and they said that the balance shaft gear was completely deteriorated. They described the gear as "chewed up"! I had no choice but to pay $4,000 to get the engine removed from my car and have the balance shaft replaced.

- Geneva, FL, USA