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  1. Secret Squirrel

    Basic DIY Servicing

    Get 5 litres of oil. It takes ~4.5 litres for a change, leaving ~½ a litre for top-ups, if you need it before the next change.
  2. Secret Squirrel

    n75 j valve...where can i buy one???

    I’m not surprised the parts man didn’t know what an N75 J was, as they only talk in part numbers. Try again, but this time ask for an 034 906 283 J. It’s a solenoid valve originally used on 3B and RR engines.
  3. Secret Squirrel

    what do people think of these valves

    Are Forge's valves not made in China? I'm hearing a lot of bad things about Forge DVs ATM, but my own seems fine. Maybe this is why.
  4. Secret Squirrel

    headlight upgrade help

    I have fitted facelift headlights to a pre-facelift S3. I had to cut more than is shown in that picture. Here's what I removed: Somehow it felt a bit wrong taking an angle grinder to such a nice car, but I think the end result was good.
  5. Secret Squirrel

    CG-Lock

    I've used one of these before. It's an excellent little gadget. Especially handy when your lapping the Nordschleife in ~8 minutes.
  6. Secret Squirrel

    TT gearknob!

    I've fitted an RS4 screw on type gearknob to a pre-facelift S3. I cut a thread on the gearstick, M12x1.5 IIRC.
  7. Secret Squirrel

    What is this? & How to top it up?

    G12+ and deionised water is what you want. Any good mechanic should be able to do a simple test to tell if you have the correct ratio.
  8. Secret Squirrel

    New S3 engine...any options from other cars?

    If you want a new engine for your APY, any S3 engine will do. APY, AMK, AUL and BAM all have the same blocks, crankshafts, pistons, conrods and cylinder heads. It's only the ancillaries that are different. Just swap all these parts from your old engine on to your new one. Why do you want a new...
  9. Secret Squirrel

    haldex unit, changing oil/filter

    Haldex Service How To. I didn't think the oil and filter were that expensive. I suspect there is quite a bit of discount to be had on those.
  10. Secret Squirrel

    just replaced my brakes but...

    @ dultanur. If you don't have Vag-Com, get your brakes re-bled with the engine running. The bleed sequence is very important too. Start at the master cylinder and work away from it. This technique works for me, and I had to find it the hard way. I also use the bedding in technique as described...
  11. Secret Squirrel

    Overboosting?

    And you're proud of statements like that?
  12. Secret Squirrel

    Overboosting?

    WTF? BS!
  13. Secret Squirrel

    Turbo problem or alternator?

    Have you tried checking the battery voltage? I have found ECUs don't like low voltage, and this could cause bad running/misfiring.
  14. Secret Squirrel

    Overboosting?

    IME the DV leaks between the boost entry pipe and the vacuum signal pipe. This causes the DV to leak under boost and the vacuum line cannot actuate the diaphram correctly, thus causing compressor stall. The vacuum line cannot flow enough air to prevent this. A healthy DV will not make a...
  15. Secret Squirrel

    Overboosting?

    The chatter you hear is compressor surge/stall, that's not normal. Most likely due to a faulty DV. Get a new one from your dealer - 06A 145 710N, it should be <£20.
  16. Secret Squirrel

    Engine Version?

    That will tell you what engine it should have. If you look at the cylinder head, the engine code should be stamped in the position shown in the picture: It's a little easier to see with the engine cover off. That will tell what engine the car most probably has.
  17. Secret Squirrel

    soft pedal

    Unless you are experiencing a long pedal, rather than spongy one. It could be a seized caliper. The usual problem is the rear caliper carriers binding on corroded pads. If you pries them out and clean them up with a wire brush, it should cure it. It is worth a look anyway.
  18. Secret Squirrel

    soft pedal

    Is the pedal travel shorter without the engine running? Air can easily remain trapped in the system, if the correct bleeding procedure isn't followed.
  19. Secret Squirrel

    Problems with A3 Sunroofs

    It sounds like a dodgy rheostat/potentiometer. I think a replacement is still available.
  20. Secret Squirrel

    soft pedal

    You could try bleeding the brakes, or changing the fluid.