E240 Misfire and rattle

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Mamali

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Can anyone offer advice on the following situation I find myself in. My E240 Estate (1998) developed a rattle once warm not long after I got it back from a service. After a week or two I noticed that it was also losing power. I booked it into my local Merc dealer.The car has done 100K miles.

The garage diagnosed a faulty V belt auto-tensioner and also advised the belt to be changed, this came to £250 and solved the rattle but not the mis-fire. As this came about only after 15 mins of driving coupled with the fact the plugs 'looked grubby' the garage informed me that the next step would be to change all the plugs (add another £220 here). This did not fix the problem, further diagnosis ruled the ECU and the conculsion was drawn that one of the injectors was faulty. I will hopefully get this fixed tomorrow. The upshot is no car for 5 working days, a bill which is now past the £700 mark and me feeling like my garage are crap, totally skint and contemplating trading my pride and joy for a cheaper car to own, service and repair. Should I just shut up whinging and accept Mercs are expensive to repair or is there anyway I can complain before I hand over my hard earned cash ?
I cannot believe these cars do not have a more advanced form of diagnosis to save all the unnecessary cost if trouble shooting.

Cheers

Rob :(
Guess what guys, after much to-ing and fro-ing the leads were finally replaced, covered by the cost of the previous repairs, no problems now. £760 bill, the dealer looked a little embarassed to finally conceed to the diagnosis from this forum, thanks for the help.
 

willydog

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i think it is time to shop around for an independent mercedes
garage as mercedes dealers labour charge is a bit excessive :-(
 

Andy

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Hi

I would agree. If the vehicle is in at the dealers then it does not take long to rack up a big bill.

Mb do have an advance form of diagnosis. If fault codes are there or arn't relevant. Then they have to look at the live data. But at the end of the day, its is only as good as the tech looking at it.

Must admit most of the problems we have experienced with the V6'S have been due to the spark plug leads or some of them. But they should be able to check these. Using the Star diagnosis. It is our experience that that the fault will not show up when checking the leads for high resisstance.


Regards

Andy@ www.mercedesservicing.com
 

rick

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See my post on radio interference. The HT leads go short to the metal sleeve around the top of the plug.
 
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