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| D2 - Transmission Gearboxes, diffs, drive shafts. |
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#1
26th January 2014, 10:36 AM
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Jumps into reverse sometime. Please help
I have a 2002 final edition S8 with the
Gear change on steering wheel. I sent car in for a new tray/filter and new oil. Came back fine then a few days later the box would jump Slightly when I go to put it in reverse and put all the transmission lights on Can any body shed any light on this. It is intermittent too. Doesn't always do it. Does the box store fault codes? Questions welcome to get to bottom of this. Thanks. 
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#2
26th January 2014, 10:38 AM
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If I turn ignition off and back on the lights clear and its fine again.
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#3
26th January 2014, 10:57 AM
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Could just be bad luck and your F125 switch has borked - it will store a fault code for that or any other mechanical fault with the box where it is capable of recognising one of the symptoms. Get the codes read and that will give a very strong pointer to the cause.
When all the lights come on on the DIS it's in limp mode so jams in 3rd or reverse only - if it's in limp mode and you're noticing a thump it could just be because of that. If it's thumping badly without throwing it into limp mode I'd start by asking whoever did the fluid change to check the level again as a starting point. Horror scenario is if they've used the wrong oil or something has been dislodged that's now causing problems, but I'd start with the simple/cheap-ish stuff first and not panic just yet 
__________________
===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD=== 2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus 2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC
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#4
26th January 2014, 12:00 PM
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Thanks for your advice.
Genuine Audi oil from dealer was used (damn expensive) And genuine filter tray. Exact amount of oil was used and bleeding done. Is this switch you mention and easy swap or is it internal? Will get the box read next week and see what codes it brings up. Thanks again.
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#5
26th January 2014, 02:04 PM
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The switch is on the side of the box, but requires a downpipe removing and the box mount dropping to access it.....
__________________
===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD=== 2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus 2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC
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#6
26th January 2014, 02:50 PM
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Another thing I remember reading in other posts is that if the wrong oil pick up pipe is used or located incorrectly it terminates too close to the bottom of the pan and restricts the oil flow thus giving gearbox issues. I would investigate the F125 switch as well but it seems odd that this issue has suddenly occurred at exactly the same time the gearbox was serviced. If you search the threads on here I'm sure there's something somewhere about the gearbox oil pick up issue.
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Confidence is the feeling you have before you know better . . . .  Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble  Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs
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#7
26th January 2014, 03:58 PM
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Quote:
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2019 BMW M5 (my daily driver) 2002 Mark's D2 S8 FE 2020 BMW M340d xDrive (Anely's daily driver) 2000 FL D2 4.2 QS - SOLD 2011 
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#8
26th January 2014, 04:02 PM
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Crazy thing is its only reverse.
Box is so smooth through all forward gears. Will investigate the switch next week. Will Vagcom read the box? Cheers
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#9
26th January 2014, 04:17 PM
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Quote:
Is it the moving from D to R or back that causes it to go into limp mode?
__________________
===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD=== 2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus 2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC
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#10
26th January 2014, 09:30 PM
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I start car.
I go into drive and all is well and car drives as you would expect. Then I come to a stop and go to select R. Then it pauses one second. The Jumps to R and lights come one. As soon as I turn ignition off and back on lights go out and drives as normal once again.
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Linear Mode
