JMB RetrofitsAH Fabrications
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  1. #1
    Hanz's Avatar

    Join Date
    Nov 2010
    Bath, Wiltshire

    Audi s3 turbo valve diaphragm?

    Hi all, im still on the quest to sort out my "cylinder bank 1 lean" problem.

    Today i took it to my local VAG specialist and they put the car on the diagnostics and again, it came up with the same thing.

    I have no inlet air leaks, nor exhaust leaks.

    The diagnostic print out gave the following possible issues:

    Inlet air leak

    Exhaust gas leak

    Fuel pump (g6)


    The service chap also said to check the valve on the back of the turbo?

    I have checked the diverter valve, but did not know there was another valve on the turbo, he says there is a diaphragm that splits?

    How true is the above?

    If so, how easy is it to change?

    Cheers, Louis
    2006 Audi S3, Phantom Black, Bluetooth/Phone prep, Dvd Satnav, Cruise Control, Auto light and wiper pack, Bose, Addaptive Headlights, Through load in rear seats......... Shark Stage 1 - Pipercross Venom CAI - H&R 25mm Springs - Black Optics Grill.....

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  3. #2
    BlueSpark's Avatar
    6th Gear

    Join Date
    Aug 2010
    South London
    The old version diverter valves have rubber diaphragm which tend to split. I had this issue and was losing power. I changed it to the revision D (newer version) diverter valve which does not have diaphram and it sorted it.
    Audi A3 8P2 2.0Tfsi S-Line Special Edition Bluefin

    3dr Mauritius Blue || Full Leather|| BOSE || MFSW || Auto Lights/Wipers || Auto Dim Rearview Mirror || Heated Mirrors
    Mods: S3 Aluminium Pedals || S3 Vents || 2010 RNSE || OEM Bluetooth || Dension Gateway 100 || MY09 Rear Lights || Single Xenon Headlights



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