R-Class: petrol into diesel engine...now it's gone crazy!

[Sym7]

I have a diesel R-Class. First time in my life I accidently put petrol in the tank (thankfully only £20 worth because pump was so slow and I was in a rush). I started the car on tick over while I went to pay (so kids could watch their DVD). My wife came running in and said she had to switch the engine off because the car was making an awful sound (so we caught the problem early). The man at counter of the filling station called someone on our behalf to "fix" the issue. He turned up in 20mins and drained the tank (and put some cleaning fluid in too). Luckily £20 of fuel only partly filled one side of the tank (it's shapped like a saddle over the drive shaft). I started the engine, it banged and clonked for a few seconds and then ran smooth as ever.

Now, here's the problem: as I left to go down the motorway all warning lights came on. No ESP, no ABS, no Cruise Control etc etc. Mercedes service people told me this would go away after the computer sorted itself out after a number of restarts. Well, that was Tusday and the problem's still there.

Anyone suggest anything? Any clues why this may have happened? Maybe someone with a similar experience....but please don't tell me this is going to cost me a bag of money!

Thanks.

Edited by Sym7 on Friday 20th August 15:36

[skippyozz]

NOte: I am not a specialist!

However I'd say that some engine/fuel sensors went haywire, hoping none are damaged.
I think the computer's error memory needs clearing, and to run a diag to make sure the various engine sensors are OK, and also the injectors. These high-pressure electronic-vamve injectors are sensitive.
The thing is the car actually ran on petrol, albeit briefly.
Surprised that MB said it would go away. Some cars can go into 'limp mode'. Doesn't the 'check engine' light come on? Or a message telling you to go to the dealers?
What 'cleanser' did the guy put in? Best cleanser for an engine is just clean fuel.

[Deva Link]

I guess he'll have fixed it by now.

Starting the engine and leaving it idling at the pumps so the kids can watch their DVD? Hmmm...

[lotuselan7]

Deva link as usual helpful and insightful comment to assist the OP, just what he was looking for, Im sure he'll be back for agian based in your advise!

[Deva Link]

lotuselan7 said:

Deva link as usual helpful and insightful comment to assist the OP, just what he was looking for, Im sure he'll be back for agian based in your advise!

Thanks!

It's "advice", by the way. I'll put the other three errors down to typos.

[Podie]

Cross posting - http://www.pistonheads.com/gassing/topic.asp?h=0&a...