W126 560SEC Odd fault? please help!

[Merc560sec]

I have owned my 560SEC for over 3 years now, I have lovingly kept it and tried to restore it back to its original factory spec by sending it to our local MB Dealer.

After over £10000 of work done on suspension and a reconditioned engine, the car was running really well and I felt I was slowly but surely getting on top of the restoration and was planning to send it to our local body shop to get it resprayed.

Two weeks ago, I was returning home from work, sitting at a roundabout waiting for the road to become clear and all of a sudden the car left the roundabout (so an eye-witness says) and plunged through a set of trees over the edge of a car park then through another set of trees at full throttle! It came to rest, axle deep in mud still at full throttle and on fire! I was knocked unconscious and was rescued by the fireman who kindly cut me out. Luckily, this incident happened on the grounds of our local police station, the 1st policeman on the scene was able to switch the engine off, while it was at full throttle and still in "drive."

As stated previously, I was knocked unconscious and have amnesia from about half a mile before the crash until I woke up on the stretcher, not understanding why I was there and what happened to my beautiful Mercedes!

Can anyone shed some light on this incident? Are w126s known to become erratic, any advice would be welcomed.

Cheers

Richard

 

[kanda]

did you fall asleep on the wheel or what??

 

[Merc560sec]

No nothing like that, I was completely awake.

 

[Blobcat]

Is there a court case pending?

 

[jberks]

Any mechanical device can malfunction, but a car system defaults to off (as against a light aircraft where they default to on). Hence, if anything goes, such as the cable, you get no throttle.
There have been cases of diesels sucking engine oil through the turbos which cause them to run without throttle but its very rare on petrol cars.
I'd have the garage go through it carefully to see if they can determine the cause. That said, aside from your peace of mind, there isn't going to be anything to come from it. It was an accident.

 

[Stevie A]

There was a post on here about a bloke who was in his Merc in the car park and it shot off on its own full throttle. This was a relatively modern car less than 10 years old.

However, maybe if your car had a throttle position sensor could this cause the engine to go full throttle if faulty? I don't know about this for sure.

Depends how much electronic management stuff your engine has. If it is an electronic throttle / management set up something in that line, not just a throttle position sensor, could have went nuts and applied full throttle.

 

[Merc560sec]

Im not taking the car back to the Mercedes dealer because they were useless, they knew nothing about a w126 coupe!

The service manager gave me some rubbish story that I lost the rear of my car on the way home because "they fitted new tyres"! In reality, they replaced two shock absorbers diagonally across from each other!

Here is a pick of my car as it is at the moment in the recovery yard!

http://i81.photobucket.com/albums/j208/rodmcban/richyscarr.jpg