Question about 1994 BMW 3 Series

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1994 bmw e36 325 tds

Car starts first time hot or cold, no smoke and pulls like a train. Problem is after its been running for about 30secs at idle it starts to get lumpy. Like its only running on 5 cylinders. Have checked the obvious like leak off pipes etc, all replaced. Filters replaced and system flushed with cleaner etc. As soon as the revs get over 900-1000 its smooths out. It's done 192000 miles. No faults showing on the diagnostic check. Any ideas

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  • mchiv80159 Feb 15, 2009

    All injectors are working 100%, looks like the problem is the dual mass flywheel failing.

  • Anonymous Feb 20, 2009

    hi ,i use to have the same problem and i id everything you did but the problem was the electronics of the fuel injection pump (ecu) .
    so i hade it replaced and all is well.runs like a charme.hope this helps.

  • bandit boy May 12, 2009

    i have the same problem then when i changed the fluxcopasitor valve the problem was cured and now my car has an extra 58 bhp.

  • mark brown
    mark brown May 11, 2010

    Hi, has a check been done on the diagnostic tester to check smooth running as this may be an injector failure.

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There is a company in Northern Ireland called Exact Engineering that can convert your dual mass flywheel to single mass using a complex engineering process ending with a finely balanced guaranteed single mass product. They have a complete courir service.

You can see their website at www.exact-spec.com and contact them at info@exact-spec.com

Posted on May 29, 2009

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Can be related to low fuel pressure or problem with crank sensor.


Also it can be weak battery or starter.


But possibilities are to be inspected to confirm what exactly it is.------


To troubleshoot and confirm the issue,i suggest you refer few solved help links with similar types of problem like yours:------


Click the link below:------


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Click the link below:------


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