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Car Forum / Mercedes-Benz Cars / March 2007

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W 124 300 TD Turbo lost power

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Holten - 18 Mar 2007 18:49 GMT
I am the happy owner of a 300 Turbo Diesel from 1991 (w124).

The last 2 month I have had the problem, that when driving normal, and then
whant to accelerate nothing happends. If I waite 3-10 seconds the car
beginns to accelrate, or  if I lift my foot from the speeder a litle it also
beginns to accelerate ??

When it starts to accelrate everthing is fine and no power lost.

All fuel filters has been changed (not the one in the tank).

Sometimes I can drive a week with no problem, and then it starts again ??

At Mercedes they dont know what to do.

Sorry my english is old :-)

Regards from Denmark

Holten
macdrone - 20 Mar 2007 14:37 GMT
Well try a tune up, when is the last time you put cap, rotor,
sparkplugs and coils on that thing?  New air filter would be good.  If
hesitation doesn't stop try checking for vacuum leaks.
Holten - 20 Mar 2007 16:52 GMT
> Well try a tune up, when is the last time you put cap, rotor,
> sparkplugs and coils on that thing?  New air filter would be good.  If
> hesitation doesn't stop try checking for vacuum leaks.

Read one more time, it is a Diesel !!!

Regards

Holten
Richard Sexton - 22 Mar 2007 17:22 GMT
>> Well try a tune up, when is the last time you put cap, rotor,
>> sparkplugs and coils on that thing?  New air filter would be good.  If
>> hesitation doesn't stop try checking for vacuum leaks.
>
>Read one more time, it is a Diesel !!!

Find and talk to Dave Meimann. He doesn't post oto usenet but
will have your answer.

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  Need Mercedes parts?   http://parts.mbz.org
Richard Sexton       | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net
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Douchkov - 22 Mar 2007 22:07 GMT
Unplug the cable to overboost protection switchover valve and try again.
The valve is located near the glowplug relay. It is a small black box with
two hoses and a cable connected.

>I am the happy owner of a 300 Turbo Diesel from 1991 (w124).
>
[quoted text clipped - 16 lines]
>
> Holten
Tiger - 31 Mar 2007 15:27 GMT
I would clean your banjo bolt... I would also change all your fuel lines to
make sure none of them is swelling internally that restrict fuel flow.
 
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