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#1
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My S8 box.....
Folks
Have noticed that occasionally I get all the gear shift lights coming on with a red background, so you can't tell what you've got engaged without looking at the shifter. Am I right in thinking this is an indication of limp mode? There's no lights on the dash to accompany the DIS going all red on me Sometimes it's done it when I've just started the car, other times after I've moved off. Generally restarting the car seems to clear it. It did it this evening when I needed to move the car to get the other one out and seemed a bit less keen to react to throttle than normal. Since I'd cold started it I didn't want to cycle the ignition just to prove a point. Under normal driving the shift is extremely smooth with no hesitation when selecting gears, or moving the selector. Where should I start to look to pin down any issues? Could this just be low fluid? I have a friend who can check the fluid level and vag-com the car, but he's not back at work till 4th jan. From past experience with my Passat if I drive to his place I'll have to leave the car sitting for about 4 hours before it's cool enough to do the fluid check, which isn't ideal with an 8 month old in tow..... Adrian |
#2
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Hi Adrian,
Sure sounds like limp mode,my previous A8 went into that mode, but that was due to the brake pedal switch being faulty,As we need to depress the brake pedal to engage the gear stick,thats when mine used to go into limp mode,not every time but occasionally.So not gearbox related as I had assumed,I think we always think the worse,with the well documented gearbox issues. Needs to go on the computer or vagcom really Rich |
#3
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I concur with Rich. I have a similar problem on the project car. Only in 1st but it goes to limp mode and is cleared by switching off and on. VCDS is showing an intermittent fault on the brakes switch (not the brake light switch).
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Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light. |
#4
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Adrian, is this the avus S8 that you have just recently brought? I'd get it checked out sooner rather then later as I'm sure the trader that sells it to you has some sort of legal responsibility towards the car if its faulty so soon after sale. I hope its nothing serious, but when the gearbox is concerned its better to be safe then sorry. If you haven't already, I'd recommend a Warranty Direct policy.
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2009 Audi RS 6 Saloon V10 - 420mm Ceramics, Keyless, Soft Close, Adaptive Cruise, Glass Sunroof, Blinds, Twin Pane & UV, Freeview & DAB, High Beam Assist, MTM bits, Audi Exclusive Bits, MRC, Milltek, GYEF1 ASY2's, Bluetooth streaming music to AMI mod - 753 PS/1021 NM 2016 Audi S3 Saloon, Sepang, S-Tronic - B&O, Tech Pack etc... Company Car 1995 Audi A8 4.2 V8 quattro Sport - Bose, Solar, Blinds |
#5
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Hiya
Thanks folks - basically not much to tell without vag-com'ing it to see what comes up then..... It is indeed my Avus car - I don't have a warranty as I knocked too much off the price to get one, so it was sold on a 'trade' basis - my invoice has 'no warranty applied or given' written all over it! I doubt I'm looking at £1100 expense given it's generally working fine (touch wood!) and that was the cost of the warranty they were offering. Will have to wait till my mate's back at work, or I'll pop it down to Camspec on Manor Royal and ask nicely if they'll wack it on theirs and see what pops up. |
#6
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My 8 does a very similar thing. When starting it occasionally goes into the all red dis mode but doesn't drive in limp mode if i drive it like that. The gears shift fine and it only appears to be the dis that is any different. I can easily get rid of it by restarting the car. It probably does it once every 10 starts (if that). I also find that if I start the car like a diesel (pausing the ignition before cranking the engine) then it doesn't do it it at all. I have no idea what is the problem until I can get it to my local VCDC specialist. Interesting info about the brake pedal switch though.
Jon |
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