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MB 300S Turbodiesel (w140) 1997 & MB 400 CDI (w220) 2001
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2 Posts
Discussion Starter #1
After driving a while the car stops to accelerate in a normal way. 0 - 100 km/h takes about 30 seconds.
If I turn of the igniting and start it again then it accelerate the way it should, and that is less then 9 seconds whiteout pushing the pedal to the metal.

Does anyone have an idea of what this might depend on?

Here's som details about the car;
MERCEDES BENZ 400 CDI
Engine code:OM628.960
KW: 184
HP: 250

Thanks,
Fredrik
 

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2003 W220 Mercedes S320 CDI, 1977 C107 Mercedes 450 SLC
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4 Posts
Car goes into limp mode. Mine did it as well, and the verdict from the stealers was a busted turbo, at $ 4000 to replace. I took it to an independant mech and he ripped out the catalytic converter and replaced it with a normal silencer, about a $80. I have not had the issue again. Basically the oil in the unburnt diesel when you accelerate clogs the cat, which registers an overpressure on the turbo sensor. The STAR system just shows it as a turbo fault.

BTW, in South Africa it is legal to drive without a cat converter.
 

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2003 S430
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2 Posts
Check fuel filters

I would highly recommend changing your fuel filters.

It seems as if one or more are clogged.

If that does not do it, check the strainer inside your fuel tank.

Hope this helps.
 

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2004 (w220) S500 & (R230) SL550 2007
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649 Posts
mine did the same thing

I replaced the CPS and it drives normal now..It's a $45 part from AutohauAZ
 
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