Rochdale based Custom Code Agents

uk-mkivs » Technical Community » D.I.Y Guides and How to Instructions. » How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

Last post Fri, Aug 21 2009 5:05 AM by Johnyd. 10 replies.
Sort Posts:
Previous Next
Page 1 of 1 (11 items)
  • Thu, Jun 14 2007 9:04 AM How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    Big_E
    • Joined on Mon, Jun 11 2007
    • Posts 79
    • Not Ranked

    Hi All,

     I decided to make a "How To " whilst I was replacing my Mass Air Flow meter.

     
    If your having problem such as Flat Spots in acceleration, struggle to hit 80mph +, Struggle going up hills , Turbo seems to Die / go flat  in certain gears during the rev range I suggest you change your MAF.

     

    Firstly to highlight, this is the M A F Unit It's self. 

     

     

     

    Step 1: Disconnect the power cable at the top of the MAF Unit 

     

     

    Step 2 : Take out the Screws at either side, holding the Unit onto the Air box.  I could use a standard Philips for mine, yours may require a Torx style driver.

     

     

     

     Step 3 : Move the clip holding the MAF onto the flexible pipe, some find this tricky, I found this very easy with some long nosed plyers, I Just open the clip  enough to remove the old MAF, and put the new one in place. and released the clip again. Simple.

     

     

    Step 4 : Close the clip again, and make sure the new M.A.F is held in tightly.

     

     

    Step 5 : Take the blank cover off the other end and stick it in the other side of the airbox.

     

     

    Step 6:  Screw back in, I twisted the Maf slightly to ensure the hols lines up, if you put the MAF unit in and the holes will not line up, Open the clip again and turn the MAF slightly.

     

     

    Step 7: Re Connect the power again.

     

    FINISHED

     

    I did this in under 5 mins in the bloody rain, really easy to do. Boy does it make a different, took her for a spin afterwards, no problems up to 100mph+ ( she struggled to hit 90 before )

    Smooth, acceleration, with NO flat spots what's so ever.

     
    If your thinking of doing it, don't put it off. Do it now.

     

     

     

  • Sponsored Links
  • Thu, Jun 14 2007 9:14 AM Re: How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    Dod 1396
    Golf IV R32 3.2 240PS
    • Joined on Tue, May 16 2006
    • Location: Nr Swindon
    • Posts 1,977
    • Top 200 Contributor

    Nice "how to" there, mate.

    This should be made into a sticky, most people will have to do this and would be really useful.

    I would definately have a go now, after seeing this, I have not got oily hands.

    Cheers Bud

    Simon

    GTi TDi Anniversary 1396

    High Factory Spec Mk4 R32 For Sale (including Sat nav,sunroof,Full leather and cruise)
    http://uk-mkivs.net/forums/t/335596.aspx
  • Thu, Jun 14 2007 9:41 AM Re: How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    AidenUK
    • Joined on Wed, Oct 4 2006
    • Location: West Yorkshire
    • Posts 5,078
    • Top 50 Contributor

    How much is a new MAF? Just need to know for future reference.

    Cheers.

    'Sounds like a Golf, but it's not a Golf'

    Audi A3 2.0L TDI 140 S-Line DSG
  • Thu, Jun 14 2007 10:01 AM Re: How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    davemk Moderator
    • Joined on Thu, Jul 15 2004
    • Location: Shropshire
    • Posts 6,441
    • Top 25 Contributor

    I was quoted around the £80 mark from a dealer. It's an exchange basis by the way.

    Big_E - Nice work. Have added the link to the FAQ thread.
  • Thu, Jun 14 2007 4:48 PM Re: How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    Big_E
    • Joined on Mon, Jun 11 2007
    • Posts 79
    • Not Ranked

    Thanks for the comments, it really was easy.

     

    They initially quotes me £80 ish also, but then he did some more typing and came back with £56 something pence inc VAT. He said, they don't do a exchange on them any more, and places that do will be phasing them out soon ish. So an old MAF is pretty much useless, if it's on it's way out anyway.

     

     

  • Thu, May 7 2009 3:48 AM Re: How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    sam.i.am
    Golf IV GTI 2.0 8v APK 115PS
    • Joined on Sun, Jul 29 2007
    • Location: Surrey
    • Posts 110
    • Not Ranked

     Sorry to bump and old thread but the pics no longer work. Has anyone got some they could upload, or email me and I can upload? Or a link to another guide to replacing the MAF?

    Thanks!

    www.talkaudio.co.uk


    Alpine | Helix | Genesis | Image Dynamics | PHD
  • Mon, May 11 2009 3:29 PM Re: How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    Big_E
    • Joined on Mon, Jun 11 2007
    • Posts 79
    • Not Ranked

    Will re upload them now.

  • Mon, May 11 2009 3:41 PM Re: How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    Big_E
    • Joined on Mon, Jun 11 2007
    • Posts 79
    • Not Ranked

    Re Upped!

  • Tue, May 12 2009 1:26 AM Re: How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    MikeyGolfgt
    Golf IV GTTDI 1.9 AJM 115PS
    • Joined on Thu, Nov 30 2006
    • Location: Birmingham
    • Posts 373
    • Not Ranked

    Someone tried a Mercedes MAF in their car and said it worked better than putting a new one in from VW,

    So which Mercedes one will fit? 

  • Tue, May 12 2009 2:23 PM Re: How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    davemk Moderator
    • Joined on Thu, Jul 15 2004
    • Location: Shropshire
    • Posts 6,441
    • Top 25 Contributor

    The Merc MAF will only fit non-PD units AFAIK.

  • Fri, Aug 21 2009 5:05 AM Re: How TO : Fit A New M.A.F Unit to a MK 4 GT TDI

    Johnyd
    Bora Highline TDI 1.9 ASZ 130PS
    • Joined on Thu, Jul 12 2007
    • Location: Essex
    • Posts 22
    • Not Ranked

    Nice how to Big E used it last night and it came in handy. Thanks

    18" A8 reps, AMD Remap, Coilovers and a few other little mods.
Page 1 of 1 (11 items)
© uk-mkivs.net/uk-mkvs.net