Second opinion wanted on transmission woes
08-10-2010, 11:27 AM
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Second opinion wanted on transmission woes
My first time on AudiWorld forums and maybe one of you can advise. After 14 month's respite from the previous gearbox troubles I had on my '97 4.2QS, they are back with a vengence. Struggled to get the car home in limp mode on Sunday evening as even the slightest gradient caused it to almost grind to a halt. Pressing the throttle resulted in no movement just over-revving, and the cogs won't change up to 4th/5th. The CAT light is also lit up permanently. I had the fluid/filter etc changed in June last year and this seemed to cure a similar problem back then. Could the same issue have returned after only a year? (< 20K miles since then). Or has my torque converter finally packed in? Difference this time is that the engine just revs in 3rd (I think) whereas last time it still went in to 4th/5th even in limp mode. Here are the codes :-
17118 P0734 Gear 4 - incorrect ratio
17119 P0735 Gear 5 - incorrect ratio
17114 P0730 Gear Ratio Control - incorrect ratio
17087 P0703 Torque converter/Brake Switch B Circuit - Malfunction
Could a fault in the F125 switch generate the P0730 and P0703 codes?
Any advice welcome - at my wits end with this gearbox and car's fate hangs in the balance as its going in for another fluid & filter change this Wednesday.......a real shame about the transmission on A8's as in all other respects they are fantastic cars. Must be dozens of otherwise sound cars scrapped each year just because Audi never recommended regular maintenance on these boxes....
17118 P0734 Gear 4 - incorrect ratio
17119 P0735 Gear 5 - incorrect ratio
17114 P0730 Gear Ratio Control - incorrect ratio
17087 P0703 Torque converter/Brake Switch B Circuit - Malfunction
Could a fault in the F125 switch generate the P0730 and P0703 codes?
Any advice welcome - at my wits end with this gearbox and car's fate hangs in the balance as its going in for another fluid & filter change this Wednesday.......a real shame about the transmission on A8's as in all other respects they are fantastic cars. Must be dozens of otherwise sound cars scrapped each year just because Audi never recommended regular maintenance on these boxes....
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