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lack of power low rpm?

wolfie665

New Member
Joined
Sep 11, 2011
Messages
9
Car
Mercedes ML 270 CDI
Hi all,

I will go to a service with star, however just wanted to get some advice in advance.

my 2004 ML270cdi sometimes cannot go over 2000 rpm. That is frustrating because when I need to accelerate it happens very slow. The point is it does not happen all the time. I do not know am I imaging it but when I fill the tank full it goes better. I have tried several times to add anti-water additives to the fuel.

And sometime if it happens on a hill the car just slows down and basically depending on a hill, because I cannot go over 2000 rpm I am basically crawling with 40 mph. No grunt at all. :dk:

Last year it has happen on my way to Spain on a steep mountain hill highway and it was a pain, I was overtaken by HGVs doing 50 mph :wallbash:

Any ideas guys?

thank you

cheers
Val
 

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