Sudden acceleration when parking GL - Mercedes-Benz Forum

 
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post #1 of 9 (permalink) Old 07-25-2012, 05:21 AM Thread Starter
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Sudden acceleration when parking GL

A few weeks ago I was engaging my GL into park at a store and the truck suddenly accelerated into the brick wall that was 3 feet from the parking spot. $17,000 in damage - evidenced that I braked- skid marks before the wall leads me to believe this was a mechanical failure with the tectonic parking shifter. A friend of a neighbor had the same thing happen. Both of us were given a the story by Mercedes that the vehicle codes were normal - vehicle is safe to drive and the assumption that we hit the gas instead of the brake. I don't want to drive my GL now. I don't trust the vehicle. Anyone else have a parking incident like mine. I feel like everyone thinks I am crazy.
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post #2 of 9 (permalink) Old 01-12-2013, 01:32 PM
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I am about to order one!! Thx!! But I do believe some things should NOT be handed to electronics to manage!


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post #3 of 9 (permalink) Old 02-04-2013, 06:48 AM
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Sudden acceleration when parking GL

I have a GL450 '12 and it is excellent.

Don't know what could've happened to your car, but I couldn't be happier with mine.
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post #4 of 9 (permalink) Old 02-09-2013, 04:23 PM
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Must not of been a 320 or 350. They never sudden accelerate!

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post #5 of 9 (permalink) Old 08-16-2015, 02:49 PM
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I have the 2006 MB CLK350 2-door coupe and I had the dash light for a defective ignition coil. I had it replaced together with all the spark plugs a month ago. Ever since the car jerks forward when I break. I didn't look into the problem thinking that it is of no consequence. No warning light. However today I parked the car in the street and after the final breaking, it jerked forward and it hit the bumper of the car in front. No damage to the other car other than a scratched bumper but my front corner is damaged. It is very hot day, 90F, so it might have to do with the building gas vapour pressure. I have the little diagnostic computer, so I'll check. Will MB take responsibility? How shall I proceed?
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post #6 of 9 (permalink) Old 08-16-2015, 04:23 PM
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MB will not do anything on a 9 year old car.

If there was widespread problem like what Toyota had several years ago then MB would have to respond.

The lurching forward at the end of the braking could very well be a problem with the 7g transmission. A lot of them had problems, but MB never did cover the repair out of warranty or create a service campaign.
Most small scan tools will not access the ABS or transmission codes.
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post #7 of 9 (permalink) Old 08-16-2015, 04:54 PM
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It's a CLK350 2-door coupe. I have the OBDII computer and it detects the codes P0170 and P0173, which are related to the air/fuel mixture ratio. The oxygen sensor 1 could have overheated (very hot outside today) and the ECM (engine control module). The MIL (malfunction indicator light in the dashboard) was not ON because probably the ratio didn't reach the threshold. For insurance purpose then I am the one responsible for the crash?
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post #8 of 9 (permalink) Old 08-16-2015, 06:26 PM
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I don't know based on your state's or country laws. I am not sure where you are located.

I have never seen an O2 code are fuel ratio issue cause a car to lurch after braking.

Is there a way you can find a place that can scan for the transmission codes without robbing you?
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post #9 of 9 (permalink) Old 10-02-2016, 03:35 PM
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My wife drives a 2015 GLA 250 and had a recent identical experience. She was pulling into a parking space when the car suddenly accelerated and drove the vehicle into a brick wall. The airbags deployed. No alarms sounded and despite an autobrake and crash avoidance system, the car struck the wall without any autobraking. My wife sustained a concussion and significant contusions from the airbag deployment at low speed. I reported the incident to Mercedes, but I have not received a call back. I'd like to know if this is a common problem and why the crash avoidance system did not engage to stop the car. After all, isn't this exactly what the commercials show?
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