Mercedes Benz GL450 owners have reported 38 problems related to service brakes (under the service brakes 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.
Today my husband was involved in a car accident while driving my 2007 Gl450. Thank god he wasn't injured but the situation he explained to me has happened several times before and I've been able to regain control of the car before something terrible happened. He left home for work at about 6am and while still in the subdivision driving about 20 miles/hr on a road with about 1" of snow, he tried to make a right turn but the brakes locked and the steering wouldn't turn and he ended up smashing the front end on a huge stone and ricocheting to a fire hydrant. Like I said, this has happened before and I'd been assuming that the skidding was because our tires were worn but we got brand new tires less than a week ago so this does not make any sense. I haven't been in touch with mercedes yet but I will be contacting them to advise them of this issue.
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all problems of the 2007 Mercedes Benz GL450
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1. Made a left turn onto the roadway from a stop. 2. Had failure of the abs, esp and parktronic systems of the vehicle. Steering wheel felt like there was a loss of power steering. 3. The vehicle was parked and started. This condition self corrected after starting the vehicle a second time. Have heard this is an issue with vehicles from other manufacturers as well.
My 2007 Mercedes Benz Gl450 has a problem since about 5,000 miles. The brake pedal has too much travel to stop especially, in traffic the pedal goes all most to the floor it is extremely dangerous. I have repeatedly brought it to the dealers attention. Even after they performed a complete job brake job. There reply was it is normal they all do the same. [xxx] parts of this document have been redacted to protect personally identifiable information pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).