Hi ,my recently bought tiptronic A4 shifts ok when driven lightly but if kicked down hard for urgent accelleration engine revs shoot up road speed doesn't increase and gearbox does not respond for about a fortnight!!(just like a slipping clutch on a manual) This is bloody dangerous and makes overtaking hazardous-especially as it will sometimes perform properly.Any ideas?

 

How many miles or KM on the car? Is it a B5 or B6 model?

You can always have someone check the transmission fluid level.

The B5 a$ has a very sluggish transmission. There is a tip chip available in the US that markedly shortens shift times.

 

Hi thanks for reply car is B5 96k miles engine code awt which i believe is 2000 manufacture.Do you have details of chip?

 

ATW is the engine code for 2000

Tip chip: http://www.awe-tuning.com/pages/shar...L=GIACTipChips

 

Could live with standard shift time (1 second?) for the present if it consistantly achieved it but it doesn't.Which sensor activates the shift and is there any way of determining if it is faulty?

 

does the gears show up on the dash or does it only show the auto gears. I have the same problem but it only happens when the auto gear does not light up on the dash. have problems with reverse gear when this happens as well. trying to find what is causing it.

 

Yes all gear positions illuminated in both modes.Have no problems in reverse.Problem I have appears to be that the gearbox sometimes doesn't seem to know what the engine's doing & the engine doesn't know what the throttle's doing !!I don't think re-chipping is the answer

 

not my area but it could be the selector needs reseting









Adjusting selector lever cable to basic setting



Special tools and workshop equipment required









t
Socket and key -T40031-



Procedure



–
Remove selector mechanism cover
Note[/align]


Please note different procedures for vehicles with selector mechanism β€œPRND” (up to model year 2004) and vehicles with selector mechanism β€œPRNDS” (from model year 2004 onwards).



Vehicles with selector lever mechanism β€œPRND”



–
Shift selector lever to position β€œD”.
Note[/align]









Before adjusting the selector lever cable to basic setting make sure that clamping bolt has been tightened. The clamping bolt can be accessed via the hole in the selector mechanism, when in position β€œD”. Use hexagon key -T40031- to tighten clamping bolt.



–
Tighten clamping bolt to 13Nm in this position, using hexagon key -T40031-.



Vehicles with selector lever mechanism β€œPRNDS”



–
Shift selector lever to position β€œS”.
Note[/align]









Before adjusting the selector lever cable to basic setting make sure that clamping bolt has been tightened. The clamping bolt can be accessed via the hole in the selector mechanism, when in position β€œS”. Use hexagon key -T40031- to tighten clamping bolt.



–
Tighten clamping bolt to 13Nm in this position, using hexagon key -T40031-.



Vehicles with selector lever mechanism β€œPRND” and β€œPRNDS”



–
Shift selector lever to position β€œP”.









–
Open quick release fasteners -2- and -3- and take off rear noise insulation.









–
Unscrew support bracket for selector lever cable -1-.
Note[/align]


Make sure the selector lever is in position β€œP”.



–
Press selector shaft lever -2- on gearbox towards the rear as far as it will go until parking lock engages.
Note[/align]


When the parking lock has engaged it should no longer be possible to rotate both front wheels in one direction at the same time.



–
Make sure that the selector lever cable has not been bent or kinked and that it is not under tension.









–
Make sure that selector lever cable -5- is securely attached to support bracket -4- with nuts -6- (13Nm).









–
Bolt support bracket for selector lever cable onto bracket -1-.



–
Adjust selector lever cable



Tightening torque








Component
Nm

Clamping bolt to selector lever cable
13

Support bracket to bracket, bolt M8 -1-
23








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might be just the magnetic switch under the shifter cover that needs adjustment or replacement