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Thread: TDV6 power loss

  1. 27th June 2015, 02:59 PM #1
    matt_ali_walsh
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    TDV6 power loss

    Hey all,
    I wonder if anyone has any ideas on this. We have a late D3, and since it's last service we've had an intermittent problem.
    Start from rest, the car can be almost non responsive to the throttle. Very sluggish acceleration, and then it finally gets up and going. I'd suspect the fuel filter (which was changed), but once on boost the power seems normal.
    I have an IID tool, and there were no codes shown. The TPS seems to respond normally too. We had something a little similar happen in out D2 where the waste gate wasn't moving freely, hence no boost at low power settings. In this case though no excessive smoke, and no over boost codes, which led to an incorrect diagnosis by the last mechanic & cost us a new MAP sensor, buts that's another story.
    Anyhooow, we're two hours from the nearest dealer, and when I rang the service adviser didn't seem to have any ideas where to start looking anyhow. I'm reluctant to take it ti the workshop and pay for a heap of hours that may not fix the problem anyway.....
    Does anyone have any ideas? it did throw a code a couple of weeks back, but I cleared it without noting the number It runs fine for a while, but when it plays up its dangerous..........
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  2. 27th June 2015, 06:24 PM #2
    BobD
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    I would suspect the brake light switch first.
    Bob

    2010 D4 3.0TDV6 SE, ediff, LLAMS, 5 x GOE wheels, LT285/60R18 BFG K02's, GOE Compressor Guard, LR Tank, Mitch Hitch, ECB Bull Bar, Kaymar Rear Bar, Traxide, Safari Snorkel.
    2019 Discovery 5 SD6 SE, 20 inch wheels, 275/55R20 Nitto Grappler G2 tyres
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  3. 27th June 2015, 07:07 PM #3
    Goaroving
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    Agree. Just had mine replaced after having sluggish response and DSG code off. Different vehicle now.
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  4. 27th June 2015, 10:48 PM #4
    matt_ali_walsh
    matt_ali_walsh is offline Fossicker Supporter
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    Gotta love this forum! Thanks for the response guys
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  5. 28th June 2015, 07:27 AM #5
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    andylandy
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    Hi Mat,

    Could also be worth checking for a sticking turbo actuator.....

    Andy
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  6. 28th June 2015, 07:54 AM #6
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    andylandy
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    Although with that you'd also get excess smoke

    Andy
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  7. 28th June 2015, 10:36 AM #7
    matt_ali_walsh
    matt_ali_walsh is offline Fossicker Supporter
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    Thanks Andy,
    is there somewhere on here I can go to for a method for checking the actuator? I don't think I'm getting excess smoke, when our D2 was giving trouble like this I could see the smoke in the rear vision mirror. Not so in this case......
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  8. 28th June 2015, 11:10 AM #8
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    andylandy
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    Hi Mat,

    Have a look here

    DISCO3.CO.UK - View topic - Grease up your turbo actuator rod IMMEDIATELY!

    Of course I may be way off the mark

    Andy
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