[urq] FW: sudden stumbling

[Johan H]

Hi again,

I had a look at the car yesterday, and here is what I found out:

1. I did the self diagnosis check and everything seems to work

2. Pulled the fault codes and I only got 4444, ie. no faults stored

3. the car runs on all 5 cylinders when cold. When it warms up it only runs 
on four cylinders (this was what I previously perhaps incorrectly called 
stumbling)

4. At first I thought that it would be something as simple as water in the 
tank, I put in some additive in the tank, but no change.

I will change the big fuel filter under the car, lets see if this helps

Cheers,
Johan Hisinger
Helsinki, Finland




>From: "Johan H" <milisen at hotmail.com>
>To: urq at audifans.com
>Subject: [urq] sudden stumbling
>Date: Thu, 29 Jun 2006 05:56:06 +0000
>
>Hi ,
>
>I really need some professional advice from you guys before I get my
>precious -88 MB to service.
>
>I had not driven the car for about 1,5 weeks. When I fired it up it started
>immediately and ran fine, I drove off and let it warm up... when I turned 
>to
>the motorway, I gave full boost for a while and I instantly noticed some
>hesitation, and at this point I noticed that the fuel reading was empty, 
>and
>the fuel range was 0, despite I had some gas in it when I left it.
>
>I drove carefully to the next fuel station and filled her up, but the
>hesitation did not go away.
>
>Question: could the low fuel level have broken the engine? What could have
>been broken?
>
>I should also mention that the car stumbled despite I drove slowly. But
>later when I started the car from cold, it ran fine on low revs, but
>directly as the boost level rised it started stumbling.
>
>Cheers,
>Johan Hisinger
>Helsinki, Finland
>
>
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