Engine And Engine Cooling Problems of Mercedes Benz ML500

Mercedes Benz ML500 owners have reported 5 problems related to engine and engine cooling (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercedes Benz ML500 based on all problems reported for the ML500.

1 Engine And Engine Cooling problem of the 2006 Mercedes Benz ML500

Failure Date: 06/07/2021

When reviewing the vehicle for purchase I noticed the srs light on. I brought it to the dealerships attention. They instructed me to bring it back in the morning after signing paperwork so they could fix it. After I brought it back they let me know that they didn't see any srs lights and would not be servicing the vehicle. There has been multiple mechanical issues with the vehicle including but not limited to the transmission going out, break recalls, engine leaks and now I'm being informed that my passenger air bag is deactivated. I just want a safe vehicle.

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2 Engine And Engine Cooling problem of the 2002 Mercedes Benz ML500

Failure Date: 08/06/2019

Tl the contact owns a 2002 mercedes-benz Ml500. While driving 45 mph, the vehicle accelerated and the low range warning indicator illuminated. The contact pulled the vehicle over and turned off the engine. Once restarted, the vehicle operated normally. The vehicle was taken to an independent mechanic where the key fob was updated and an oil change was performed; however, the failure recurred. The vehicle was taken back to the independent mechanic and the check engine warning indicator illuminated. Walter's mercedes-benz of riverside (3213 adams st, riverside, CA 92504, (951) 441-6182) was contacted and stated that diagnostic testing was needed. The vehicle was not repaired. The failure mileage was approximately 201,000.

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3 Engine And Engine Cooling problem of the 2003 Mercedes Benz ML500

Failure Date: 05/16/2016

Takata recall. Power steering brake issue, power steering hose became detached during vehicle operation, could not steer vehicle. Transmission and radio drain, car cut off on me during driving.

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4 Engine And Engine Cooling problem of the 2002 Mercedes Benz ML500

Failure Date: 10/16/2009

The contact owns a 2002 Mercedes Benz Ml500. The contact stated that the vehicle would not start and an hour later, he was able to restart the vehicle. A local mechanic stated that the crank shaft sensor caused the failure. The contact is concerned about the safety risk and that there are no related recalls. The current and failure mileages were 117,000.

5 Engine And Engine Cooling problem of the 2002 Mercedes Benz ML500

Failure Date: 04/15/2007

The vehicle was parked at a parking lot for approximately 2 hrs. I attempted to start the engine. It started then abruptly stopped. This happened 3 times. Upon the 4th attempt the engine would not start at all. I looked at the dash lights the computer was showing error start. I proceeded to jiggle the key and even used the second master key. The car would not start at all. I talked with mb roadside service they suggested cleaning the key, jiggling the ring around the ignition key area. Nothing worked. After 2 hours of attempts, I had the ml towed by flat bed truck to the nearest mb dealership. Every since I have owned the vehicle ( 2002) I have complained on at least 3 occasions every year, that the car would not start at times and I would jiggle the key and keep turning the vehicle on and off several times. In the past it finally managed to start. When I would report this to the dealership they would state there was nothing they could do until it actually was doing the same thing when I brought it to them. I know there is some part that has been defective from day 1 after we purchased the car. The mercedes dealership had the car for 3 days. They found a faulty transponder ring and also advised me that my second master key would not coordinate with the computer and the new transponder ring. It reads error start. Just like it was doing when I had it towed. I have the mercedes returned to me 6 days and I get in the car and the gears are locked. I turn the engine on and off for 5 minutes before I can get the gear to shift into reverse. I called the mercedes dealership. They want me to bring it back tomorrow for them to check some switch component which may be defective. This ml 500 only has 51,806 miles on it. However, I do not feel comfortable depending on it. I am afraid I will be out somewhere at night or in an isolated area and this ml 500 will not start or the gear box will be locked up.


Other Common Engine And Engine Cooling related problems of Mercedes Benz ML500



ML500 Service Bulletins
ML500 Safety Recalls
ML500 Defect Investigations