Removing and installing suspension strut/coil spring — VW

The following description deals with the Audi TT 1999 ä. Therefore differences must be considered, if necessary.

Required special tools

T10001 Shock absorber set
V.A.G 1752/1 Suspension strut tensioner
3186 Wrench socket SW 21
V.A.G 1752/4 Adapter
3424 Straddling tool
V.A.G 1383 A Gearbox lifter

Removing and installing suspension strut

There are various shock absorber versions =>See parts catalogue.

The same version must always be installed on the left and right.

If a different version is installed in the vehicle, the shock absorbers must be replaced as a pair.

Remove wheels.

Detach connecting link from suspension strut on both sides of the vehicle.
Pull spring clip out from bracket and detach brake hose.
Detach wire for speed sensor from suspension strut.

Remove noise insulation panel.
Unbolt drive shaft at flange shaft/gearbox.

Pretensioning torque: 10 Nm
Tightening torque: 70 Nm

Secure drive shaft with wire.
Remove bolted connection between wheel bearing housing and suspension strut.
Note installation position of bolt.
-See illustration-

Insert special tool 3424 into slot -arrow-.
Turn ratchet through 90° and detach from 3424.
Press brake disc by hand towards suspension strut.

Otherwise the shock absorber tube could become misaligned in the bore of the wheel bearing housing.

Pull wheel bearing housing downwards off shock absorber tube.

Tie the wheel bearing housing to thesubframe with wire
-arrow-.

Unscrew hexagon nut for upper shock absorber attachment.

1 -
Ratchet commercially available
2 -
T 10001/8
3 -
T 10001/11
4 -
T 10001/5

Pay special attention to the following on installation:

Before inserting suspension strut coat suspension strut mounting -arrows- with assembly lubricant G 294 421 A1.

Insert suspension strut and attach to suspension strut dome. Tightening torque 60 Nm

1 -
Ratchet commercially available
2 -
T 10001/8
3 -
T 10001/11
4 -
T 10001/5

Attach suspension strut to wheel bearing housing.
Remove the wire from the wheel carrier.
Raise the wheel bearing housing with the gearbox lifter until the bolt for the suspension strut/wheel bearing housing can be inserted.

Note:

Do not press against the ball head with the gearbox lifter.

For this purpose press brake disc by hand towards suspension strut.

Otherwise the shock absorber tube could become misaligned in the bore of the wheel bearing housing.

Remove expander -3424-.

The shock absorber must be fitted to the stop in the wheel carrier.

Further installation of suspension strut is performed in reverse order

Tightening torque:
Connecting link to suspension strut / Use new nuts. · 90 Nm
Wheel bearing housing to suspension strut / Use new bolt and nut. · 60 Nm + 90°

Removing and installing coil spring

Note different spring and shock absorber versions; see vehicle data sticker => Page
44-19

Pre-tension coil spring with -V.A.G 1752/1- tensioning device until the upper spring plate is free.
Unscrew hexagon nut from piston rod.
Remove individual parts of suspension strut and coil spring with tensioner -V.A.G 1752/1-.

1 -
Ratchet commercially available
2 -
T 10001/8
3 -
T 10001/11
4 -
T 10001/5
5 -
V.A.G 1752/1 Spring tensioner
6 -
V.A.G 1752/4 Bracket

Special tool -3186- may also be used as an alternative to the tools described above.

Ensure that the coil spring is seated correctly in adapter -V.A.G 1752/7 -arrow-.

Installing

Fit coil spring with tensioner -V.A.G 1752/1- onto lower spring support.

The end of the spring coil must make contact with stop -arrow-.

Tightening torque:
Hexagon nut for upper shock absorber attachment / Use new nut. · 60 Nm
Hexagon nut for upper spring plate · 60 Nm

Further installation of suspension strut is performed in reverse order