E46 320 Running Problems
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  1. #1

    E5 LEW's Avatar
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    Running Problems

    Hi, I'm hoping someone can really help me out,
    as I was driving my car the other day I started to notice a small judder as I accelerated. After a few miles I lost turbo and the car seemed to go into a limp mode, but with no engine management light illuminated. As I now start the car from cold it ticks over very lumpy and also makes a struggling sound whilst turning over.
    After scanning various different web sites and speaking to my local garage I came to the conclusion that it was possibly a swirl flap problem! The mechanic removed the inlet manifold to find one of the flaps had broken off and was resting against a valve, and one was hanging ready to fall off.
    He replaced the manifold with a brand new genuine one but it hasn't seemed to cure it!
    I've just driven it home from the garage and have noticed that when I dip the clutch and come to a stop, the MPG dial moves up, surely if the clutch is down and the engine is not revving, it should be still?
    My Mechanic now seems to think that the swirl flap that fell of may of damaged a valve, but wanted to get some advice before we take it all to bits,!

    Really hope some can help
    Thanks for reading
    Lewis

    P.S My car is a 320cd M-Sport coupe 04 reg

  2. #2
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    Ferret's Avatar
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    Hello Lewis, welcome to the forum

    Has your mechanic done a code reading of the engine management to see if that's stored anything, before taking the engine apart ?

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    E5 LEW (22-12-2012)

  4. #3

    E5 LEW's Avatar
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    Hi, he did put a code reader on and it came up with glow plug control module, we didn't think that it would be the problem as the car starts?
    Have you ever heard of these swirl flaps problems?

  5. #4
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    Swirl flaps coming adrift are common on the E46 I'm afraid,

    Has the mechanic performed a compression test on the car? He should if he hasn't, I'd say it will have damaged a valve though.
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  7. #5

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    Hi, he hasn't done as yet, but I will get him to do one!
    Bare with me, as I don't know a lot about cars, but if there is a damaged valve would it loose compression on one of the cylinders?

  8. #6
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    Yes it would lose compression on the cylinder with the damaged valve, due to the valve not being able to seal properly.
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