A4 Cabriolet Mk2
Dismantling and assembling differential |
Special tools and workshop equipment required |
t | Thrust plate -VW 401- |
t | Thrust plate -VW 402- |
t | Press tool -VW 407- |
t | Press tool -VW 408 A- |
t | Thrust plate -VW 447 H- |
t | Thrust plate -VW 447 i- |
t | Press tool -VW 472/1- |
t | Thrust piece -2050- |
t | Drift -3138- |
t | Sleeve -3144- |
t | Tube -3296- |
t | Torque wrench -V.A.G 1332- |
t | Removal and installing tool -VW 459- |
t | -1-Internal puller -Kukko 21/7- |
t | -4-Counter-support -Kukko 22/2- |
t | -3-Puller -Kukko 204/2- |
t | Two-arm puller -Kukko 44/2- |
Note
t | Removing and installing differential → Chapter. |
t | From 05.03 onwards, the inner stop of the seat for the grooved ball bearing (left-side) on the differential cage was provided with a larger radius. The inner race for the tapered roller bearing (left-side) was modified accordingly. Tapered roller bearings of the previous version cannot be fitted on new differential cages. For correct version, refer to → Electronic parts catalogue. |
t | Always renew both tapered roller bearings together. |
t | Adjustment work is required when renewing the parts marked with 1) → Chapter „Table of adjustments“. |
1 - | Gearbox housing 1) |
q | Housing manufactured from aluminium or magnesium → Item |
q | Aluminium version: must only be fitted to an aluminium gearbox cover |
q | Magnesium version: must only be fitted to a magnesium gearbox cover |
2 - | Shim “S2” |
q | Note thickness |
q | Table of adjustments → Chapter |
3 - | Outer race for tapered roller bearing (right-side) 1) |
q | Pulling out → Fig. |
q | Pressing in → Fig. |
4 - | Inner race for tapered roller bearing (right-side) 1) |
q | Pulling off → Fig. |
q | Pressing on → Fig. |
5 - | Crown wheel1) |
q | Is paired with pinion shaft (final drive set) |
q | Select correct version according to gearbox code letters → Electronic parts catalogue → Chapter |
q | Drive crown wheel off differential cage using a punch → Fig. |
q | Fitting onto differential cage → Fig. |
6 - | Differential cage1) |
q | With modified bearing seat (left-side) from 05.03 onwards |
q | Select correct version according to gearbox code letters → Electronic parts catalogue → Chapter |
7 - | Bolt |
q | 60 Nm and turn 45° further |
q | Always renew |
q | Lightly tighten bolts then tighten in diagonal sequence to correct torque |
8 - | Inner race for tapered roller bearing (left-side) 1) |
q | Modified tapered roller bearing from 05.03 onwards |
q | Select correct version according to gearbox code letters → Electronic parts catalogue → Chapter |
q | Pulling off → Fig. |
q | Pressing on → Fig. |
9 - | Speedometer drive wheel |
q | Removing and installing → Chapter |
q | Fit the drive wheel carefully onto the differential, making sure that it is kept straight. Do not use force; the drive wheel can break easily. |
q | Not fitted from 07.02 onwards |
10 - | Outer race for tapered roller bearing (left-side) 1) |
q | Modified tapered roller bearing from 05.03 onwards |
q | Select correct version according to gearbox code letters → Electronic parts catalogue → Chapter |
q | Driving out → Fig. |
q | Pressing in → Fig. |
11 - | Shim “S1” |
q | Note thickness |
q | Table of adjustments → Chapter |
12 - | Cover for final drive 1) |
q | Aluminium version: must only be fitted to an aluminium gearbox housing |
q | Magnesium version: must only be fitted to a magnesium gearbox housing |
q | For correct version, refer to → Electronic parts catalogue |
q | Coat sealing surfaces lightly with sealing paste -AMV 188 001 02- |
13 - | Sun wheel |
q | Installing → Fig. |
14 - | Differential pinion pin |
q | Drive out with drift after removing spring pin |
15 - | Spring pin |
q | For securing differential pinion pin |
q | Version with annular groove: removing and installing → Fig. |
q | Version without annular groove: knock out with punch |
16 - | Planet pinion |
q | Installing → Fig. |
17 - | One-piece thrust washer |
q | Lubricate with gear oil before installing |
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