Electrical System Problems of Mercedes Benz GL450 - part 2

Mercedes Benz GL450 owners have reported 42 problems related to electrical system (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercedes Benz GL450 based on all problems reported for the GL450.

36 Electrical System problem of the 2007 Mercedes Benz GL450

Failure Date: 04/02/2014

Driving in new jersey on route 80 west for 1-2 miles there was a strong odor of burnt wires that smell so bad and have noticed that the smoke was coming from underneath the passenger seat. It went on for few minutes where the wires actually caught on fire and milted together. Stopped the car, shot the engine off, with windows open and tried to pull the wires apart to prevent further damage. . . . But could not separate the wires from each other. Called the mb dealer near our location and brought the car in after the mbusa suggested towing it in and later we were told that the vehicle was safe to drive to the dealer. The local mb dealer manager I talked to was very helpful and understandable and he tries to support me the best way he could where he agreed to look at the car at reduced rate to help out to try to figure out the issue. The car is at the mb dealer now. Mbusa sent an expert to inspect the car at the mb dealer and after a week I was told that no one knows what happened. Mbusa ruled out any connections to a previous work done mb dealer on the driver seat heater. I was also told, by mbusa, that the issue is an internal and they can¿t discuss that with me and I should go thru my car insurance since vehicle was out of warranty. The dealer told me that it¿s approx. $12,000 job to replace the main harness which was responsible for this damage. I have spent so much money to purchase this SUV which supposed to be safe and reliable for me and my family and never expect this to ever happen¦. Perhaps we brought a lemon.

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37 Electrical System problem of the 2007 Mercedes Benz GL450

Failure Date: 12/12/2013

I was driving in my son [xxx] to his school in wayne new jersey with my gl 450 seats warmer turned on in both the drivers and passenger seats. I started smelling smoke & thought it was from outside. I opened my window, and smoke started swirling inside my car and started getting thicker within minutes. I try to search for the source of the strange smell - but no obvious clue observed. When I reached my destination I noticed that the seat has burned a hole in my suit jacket back left side. The hole in the car is on the left side of the drivers seat. I have not contacted Mercedes Benz service and would like to know what I should do if possible. I would appreciate directing me to the appropriate line to fix my seat and electrical system of my Jeep and get compensated for my suit damage ASAP.

38 Electrical System problem of the 2007 Mercedes Benz GL450

Failure Date: 11/17/2013

My car caught on fire while driving on highway 580 eastbound in livermore, CA. Other drivers were flagging me to pull over. My car is totally destroyed. It took 3 fire trucks and 1500 gallons of water and foam to put out. There was just under 1/2 tank of gas.

39 Electrical System problem of the 2008 Mercedes Benz GL450

Failure Date: 12/14/2012

This vehicle, and all others mercedes-benz manufactures with an automatic transmission shift selector of this type need an added safety feature to disallow a shift from the neutral position to reverse or drive unless the brake pedal is depressed. After reaching over from the exterior of the drivers side window to turn the ignition to the on position to see which headlight was not functioning (as the display message stated), a slight apparent touch upward against the shift selector (located above the key and behind the steering wheel) engaged the vehicle in the reverse position causing the vehicle to reverse at approximately 5 mph for 15 feet and come to a crashing stop against an anchored metal post and fortunately not into any other vehicles, oncoming traffic, structures, and/or another individual. I sustained a minor injury to my left forearm as I unsuccessfully attempted to reach back over while the vehicle was in the reverse motion to turn the vehicle to the off position.

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40 Electrical System problem of the 2007 Mercedes Benz GL450

Failure Date: 02/13/2012

Driver side seat caught fire after heated seat button depressed on the dash. Approximately three minutes had elapsed when seat began to smoke. The smoke continued as the seat caught fire on the front left panel of the back portion of the seat. The fire projected through the seat, burning a hole through the seat about two inches in diameter. Driver's sweater was singed by the flame.

41 Electrical System problem of the 2007 Mercedes Benz GL450

Failure Date: 09/16/2011

My car was parked in the garage. 90 minutes later engine fire began that nearly burned down my garage and house. No problems were noticed in the car 60 minutes after parking. Fire occurred 60 to 90 minutes after parking.

42 Electrical System problem of the 2007 Mercedes Benz GL450

Failure Date: 02/03/2009

This complaint is in regards to a 2007 mercedes Gl450. I have had electrical problems with this car from the very beginning. 14 days after purchasing vehicle went into the shop. On 2 occasions my car shut completely down on busy road ways and both times mercedes did not want to fix the car. Mercedes claimed a drink was spilt in the car on a computer system under the front passenger seat. On the first occasion lights started flashing and with in 30 seconds the car lost all power and had to be pushed off the road way. All of the doors were locked up we finally managed to climb out the drivers side. I had 3 kids in my car and the thought of not being able to get out of this car really concerns me. On the second occasion which was approximatly 2 weeks later the cars windows started rolling up and down and smoking. The car then shut down on us and at this point was smoking so bad my kids were coughing. The car then jumped out of park. Again the car was towed in the next day and mercedes said we spilt a drink in the car that shut it down. Mercedes refused to fix the car even though it was still under warranty. This car is not safe. I have done much research and have talked to several people who have had the same problems and have been told they spilt a drink and that is why it shut down. One man's car caught on fire in a driveway another's gl was parked in the garage and burnt his house down killing his animals. The list goes on and mercedes will not recall this model.


Other Common Electrical System related problems of Mercedes Benz GL450



GL450 Service Bulletins
GL450 Defect Investigations