Home ReviewsRefund
Home/Audi/A6/Audi A6 C5 facelift (2001-2004)/Repair manual/5 Spd. Manual Transmission - 01A/Notes
Contents Wiring diagrams Section: 5 Spd. Manual Transmission - 01A All sections

Notes Audi A6 C5 facelift

5 Spd. Manual Transmission - 01A 3 illustrations ~475 words

Notes

Note. Differential taper roller bearings are low friction bearings. Therefore the frictional torque only has a limited use as a check. Correct adjustment is only possible by determining the total shim thickness "Stotal." Do not additionally oil new taper roller bearings for frictional torque measurement. The bearings have already been treated with a special oil by the manufacturer.

Setting preload of taper roller bearing for differential.

  1. Drive pinion removed or ring gear dismantled from differential housing

Scheme 284

Scheme 284
Scheme 284

Scheme 285

Scheme 285
Scheme 285

Scheme 286

Scheme 286
Scheme 286
  1. Pull out drive flange oil seal with lever.
  2. Remove differential taper roller bearing outer races and take out shims. See «DIFFERENTIAL, DISASSEMBLING AND ASSEMBLING»(ref-196267-S26151152442005100800000) .
  3. Press outer race of left-hand taper roller bearing for differential (housing side) with shim "S2" into housing. See «DIFFERENTIAL, DISASSEMBLING AND ASSEMBLING»(ref-196267-S26151152442005100800000) . To perform the measurement use a shim "S2*" with a thickness of 00 mm (one 0.80 mm shim and one 0.20 mm shim). NOTE: For measurement purposes a shim "S2" of 0 mm is initially inserted which will be designated "S2*" in the following. After determining the backlash "S2*" will be replaced by the correct "S2."
  4. Knock in outer race of right-hand taper roller bearing for differential (final drive cover side) without shims. See «DIFFERENTIAL, DISASSEMBLING AND ASSEMBLING»(ref-196267-S26151152442005100800000) (install as far as the stop).
  5. Insert differential into housing. The ring gear is positioned on the right side (cover side).
  6. Fit cover and tighten bolts to 25 Nm.
  7. Install special tools VW 521/4 and 521/8 onto housing side in differential housing.
  8. Turn cover side of differential housing upward.
  9. Turn differential 5 turns in both directions to settle the taper roller bearing.
  10. Place measuring plate VW 385/17 onto differential.
  11. Fit measuring tools. A - Dial gauge extension approx. 30 mm long B - Hexagon bolt M8 x 45
  12. Place dial gauge extension on the center of the measuring plate VW 385/17.
  13. Set dial gauge (3 mm measuring range) to "0" with 2 mm preload.
  14. Lift differential without turning; read off play on dial gauge and note. Measurement in following example: 0.50 mm

Note. If the measurement has to be repeated, the differential must again be turned 5 turns in each direction to settle the taper roller bearing.

Formula

"Stotal" = "S2*"+ measurement + bearing preload

Example

Inserted shim(s) "S2*" 1.00 mm

+ Measured value 0.50 mm

+ Bearing preload (constant) 0.30 mm

= Total shim thickness "Stotal"

for shims "S1" + "S2"

1.80 mm

Determining thickness of shim "S1*"

Note. The preliminary adjustment shim "S1*" will be replaced with the final shim "S1" after determining the backlash. The total shim thickness "Stotal" remains unchanged.

Formula

"S1*" = "Stotal" - "S2*"

Example

Total shim thickness "Stotal"

for shims "S1" + "S2"

1.80 mm

Inserted shim(s) "S2*" 1.00 mm

= Thickness of shim "S1*" 0.80 mm

  1. Determine shim(s) from table in «DETERMINING THICKNESS OF SHIM "S1"»(ref-196267-S42634215802005100800000) .