audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

ABOUT US
Noise while driving (changes with road speed) > < Gearshift jolts, power transmission problems in 4th and 5th gear

A4 Mk1

ATF leaks between engine and gearbox
ATF leaks between engine and gearbox
t  Possible fault:
Brass bush of ATF pump seized, causing increased wear and scoring/damage on the torque converter hub; severe ATF leakage.
t  Fault rectification:
   
–  After removing gearbox, check that ATF is not coming out of the leakage inspection hole -arrow-. If this is the case, the twin-lip oil seal for final drive/gearbox housing is leaking.
–  Renew twin-lip oil seal for final drive/gearbox housing if necessary → Automatic gearbox 01V, front-wheel drive and four-wheel drive; Rep. Gr.39.
  A37-10372
–  Check brass bush -arrow- for scoring and damage.
  A38-10053
–  Check hub -arrow- of torque converter for scoring and damage.
If scoring/damage is visible:
–  Renew ATF pump and torque converter.
–  Dismantle and clean gearbox if ATF is very dirty → Chapter „Assessment of wear by checking ATF for colour and contamination“.
–  Renew valve body → Chapter.
  V32-0048
–  Check whether torque converter centring sleeve -arrow- is fitted in crankshaft → Engine, mechanics; Rep. Gr.13.
  A13-0225
–  Check that both dowel sleeves -A- are fitted in cylinder block.
–  Check whether the dowel sleeves are deformed or the drillings in the gearbox flange are damaged.
  Note
-Items 1 ... 9- can be disregarded.
  A10-0741

Noise while driving (changes with road speed) > < Gearshift jolts, power transmission problems in 4th and 5th gear