E46 320d intermittent boost

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  1. E46 320d intermittent boost 
    #1
    Bimmer Fan
    Car Details
    Pigeon87's Car Details
    Model of Car:
    320d E46
    Year of Manufacture:
    2000
    Transmission Type:
    Manual
    Car Body Type:
    Saloon

    Join Date
    Jan 2014
    Location
    Glasgow
    Posts
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    Hi Folks,

    Recently purchased my first BMW after a long time waiting (and saving) have read a lot of useful information on here regarding the problem I am currently experiencing. My 320d is 2000 excellent nick, nothing untoward until........... an intermittent problem with the turbo. I have seen a lot of useful info about the MAF and ERG, Its going on my mates diagnostic machine tomorrow afternoon but a couple of questions I would really appreciate an answer to first How do I know if I have the old MAP sensor or the newer one which needs to be coded? is there an easy way of checking whilst diagnosing?

    Should I attempt to clean or have him order me one from trade before I get there? its seems to be the most common fault

    Is there anything else I should look for?

    Has anyone had a similar experience which didn't turn out to be the MAF filter?

    The turbo was replaced at high expense by a dealer less than two years ago and I have the receipt. It pulls great so the turbo itself is fine, there is a chance it could have been shoddy workmanship and a cheap pipe or hose has a slit crack causing the loss of pressure, hopefully the Diagnostics will narrow it down but I would really appreciate any feedback at all.

    Many Thanks

    Pidge
     
     

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  3.  
    #2
    Bimmer Fan
    Car Details
    simply748's Car Details
    Model of Car:
    320d
    Year of Manufacture:
    2000
    Transmission Type:
    manual
    Car Body Type:
    Touring/Estate

    Join Date
    Mar 2010
    Location
    clacks
    Posts
    20
    Thanks
    1
    Thanked 1 Time in 1 Post
    disconect the maf sen switch,take it for a drive
    Quote Originally Posted by Pigeon87 View Post
    Hi Folks,

    Recently purchased my first BMW after a long time waiting (and saving) have read a lot of useful information on here regarding the problem I am currently experiencing. My 320d is 2000 excellent nick, nothing untoward until........... an intermittent problem with the turbo. I have seen a lot of useful info about the MAF and ERG, Its going on my mates diagnostic machine tomorrow afternoon but a couple of questions I would really appreciate an answer to first How do I know if I have the old MAP sensor or the newer one which needs to be coded? is there an easy way of checking whilst diagnosing?

    Should I attempt to clean or have him order me one from trade before I get there? its seems to be the most common fault

    Is there anything else I should look for?

    Has anyone had a similar experience which didn't turn out to be the MAF filter?

    The turbo was replaced at high expense by a dealer less than two years ago and I have the receipt. It pulls great so the turbo itself is fine, there is a chance it could have been shoddy workmanship and a cheap pipe or hose has a slit crack causing the loss of pressure, hopefully the Diagnostics will narrow it down but I would really appreciate any feedback at all.

    Many Thanks

    Pidge
     
     

  4.  
    #3
    Bimmer Fan
    Car Details
    Pigeon87's Car Details
    Model of Car:
    320d E46
    Year of Manufacture:
    2000
    Transmission Type:
    Manual
    Car Body Type:
    Saloon

    Join Date
    Jan 2014
    Location
    Glasgow
    Posts
    9
    Thanks
    1
    Thanked 0 Times in 0 Posts
    Will the car operate as normal with the MAF sensor disconnected?
     
     

  5.  
    #4
    Bimmer Fan
    Car Details
    Pigeon87's Car Details
    Model of Car:
    320d E46
    Year of Manufacture:
    2000
    Transmission Type:
    Manual
    Car Body Type:
    Saloon

    Join Date
    Jan 2014
    Location
    Glasgow
    Posts
    9
    Thanks
    1
    Thanked 0 Times in 0 Posts
    P.S. is it safe to drive in limp mode/with the flat spot?
     
     

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