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Thread: TDV6 3.0 Alternator Replacement

  1. 23rd February 2025, 08:12 PM #1
    Disco4TT3
    Disco4TT3 is offline Master Supporter
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    TDV6 3.0 Alternator Replacement

    Im 99% sure my alternator failed last week and have bought a Denso DAN1105 replacement. I did my YouTube research on steps to remove/replace and it looked easy enough (for a Disco anyway). But my disco seems to have a pipe that runs right under the alternator which is attached to a bracket which makes the unit very hard to physically remove.

    I removed the side panel under wheel arch, got the belt off, all 3 bolts out and could wiggle it around. But where the videos I watched showed, just lifting and tilting the unit forward and down to get to the main battery feed wire and control wire plug, I couldn't get mine to move more than a few mms.

    I also notice the battery wire routes under the alternator, seemingly right up against the bracket.

    Does this look normal to you?

    Here's a screenshot from this video I watched:
    https://www.youtube.com/watch?v=NMsrG_R0_U8

    Untitled.jpg

    vs a photo from mine (different angle I know) - but the pipe is much closer:

    IMG_0767.jpg


    Any advice on how to get this out?
    Nuggets

    Discovery 4 3.0L 2010
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  2. 25th February 2025, 11:13 PM #2
    Disco4TT3
    Disco4TT3 is offline Master Supporter
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    I succumbed and got an indie to do it.

    Luckily it was the alternator at fault and have a dead one to repair.

    One thing I noticed while he was doing it, is just how close the main feed wire from alternator runs to the ground wire that mounts in the driver side wheel arch - they almost touch! Sure they're sheathed, but seriously?

    Anyway, in and working now.
    Nuggets

    Discovery 4 3.0L 2010
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  3. 26th February 2025, 09:11 AM #3
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    loanrangie
    loanrangie is offline LordRover Subscriber
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    Looks like a tight fit, the 2.7 one is a doddle.
    MY08 TDV6 SE D3- permagrin ooh yeah
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  4. 28th February 2025, 12:08 AM #4
    DiscoJeffster
    DiscoJeffster is offline TopicToaster Subscriber
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    Yeah it’s a **** of a job tbh. I couldn’t for the life of me get the rear connector off Andy ended up cutting the wire and soldering it.

    I don’t miss that job on my 3L. Sadly it’s due again soon.
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)
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  5. 1st March 2025, 07:36 PM #5
    Disco4TT3
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    It really is a PITA. I hope I don't have to do it again anytime soon.

    The WSM is pretty useless too - or at least the pdf one I have anyway

    Were you able to just lift it and tilt forward DiscoJeffster?
    Nuggets

    Discovery 4 3.0L 2010
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