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D2 - Transmission Gearboxes, diffs, drive shafts. |
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Thread Tools | Display Modes |
#1
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Transmission Thumping into reverse
2002 D2 S8 213K.
Was flushed, filtered and re-filled about 10K ago. Very occasionally it THUMPS into reverse when selecting reverse. I.E the whole car lurches backwards as if on full throttle with a big THUMP. Normal operation fine just very occasionally exhibits this behavior when selecting reverse. Obviously not good for drivers heart rate or drive train. Thoughts?
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S8FRD 2002 D2 S8 on LPG 213K just passed MOT, again, no issues. Owned since 2007 **60*** Unicorn, 2012 D4 Havana Black, 4.2TDI ~60K miles Cream Leather, £25K of Factory extras including B+O Owned since 04/2018 |
#2
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The first thing to do would be to get it scanned. Then check to see if there are any error codes referring to the F125 switch, as that seems to be the likeliest culprit. Unfortunately with the D2, it doesn't give the date when the error occurred, so no way of knowing how long the error has been there.
Clear the error codes for the transmission within the transmission block itself, and then drive the car as normal. When you next experience the thump, get it scanned again, and it should hopefully only have errors relating to that. Hopefully, it will just be the F125 switch, which you can still purchase (around £150), and there are detailed fitting instructions both here and on other Audi related sites.
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds |
#3
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Many thanks, will do.
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S8FRD 2002 D2 S8 on LPG 213K just passed MOT, again, no issues. Owned since 2007 **60*** Unicorn, 2012 D4 Havana Black, 4.2TDI ~60K miles Cream Leather, £25K of Factory extras including B+O Owned since 04/2018 |
Tags |
gearbox, reverese |
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