Audi Workshop Service and Repair Manuals

Servicing wheel bearing housing with bolted wheel bearing

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 412-

t	Thrust pad -VW 511-

t	Drift sleeve -30 - 100-

t	Tube -VW 416 B-

t	Tube -VW 519-

t	Torque wrench -V.A.G 1331-

t	Torque wrench -V.A.G 1332-

t	Splitter -Kukko 15-17-

1 -	Wheel bearing housing

2 -	Countersunk bolts

q	80 Nm + 90°

3 -

Bushes

4 -	Ball bearing

q	Pressing out (82 mm Ø) → Fig.

q	Pressing in (82 mm Ø) → Fig.

q	Pressing off inner race → Fig.

q	Removing and installing → Anchor

q	Installation position:

q	Larger internal diameter of wheel bearing faces wheel hub

5 -

Wheel hub

q	Pressing out → Fig.

q	Pulling off inner race → Fig.

q	Stepped version

q	Contact surface between wheel hub/brake disc and tapped holes must be free from paint and dirt

q	Lightweight wheel hub → Chapter

Removing –  Remove wheel trim; on light-alloy wheels, pull off trim cap (use puller in vehicle tool kit). → Anchor –  Remove hexagon bolt securing drive shaft (loosen only when vehicle is standing on wheels - accident risk). –  Remove wheel. –  Secure brake disc with one wheel bolt. –  Detach ABS speed sensor wiring from bracket on wheel bearing housing.

Vehicles with HP-2 brake caliper –  Unscrew hexagon bolt -2- and detach brake pipe bracket. –  Remove bolts -1- for brake caliper and take off brake caliper. –  Re-attach brake pipe bracket. Screw in and tighten hexagon bolt -2-. –  Secure the brake caliper to the body so that the weight of the brake caliper does not bend or damage the brake line. All vehicles (continued): –  Detach brake caliper and secure to body so that weight of brake caliper does not stretch or damage brake hose or brake pipe.

–  Unscrew bolt -5- for ABS speed sensor. –  Remove brake disc.

–  Remove bolts -arrows-. –  Detach splash plate.

–  Loosen nut -1-, take out hexagon bolt and pull out both upper links -2- upwards. Do not attempt to enlarge slots in wheel bearing housing using a chisel or similar. –  Swing wheel bearing housing away to the side, and at the same time pull end of drive shaft out of wheel hub. –  Tie up drive shaft to body with wire or similar.

–  Unscrew countersunk bolts -1-. –  Take out wheel bearing unit.

Pressing wheel hub out of 82 mm Ø wheel bearing

Pressing inner bearing race off wheel hub –  Fit splitter (e.g. Kukko 15-17) into annular groove -arrow- on inner bearing race and tighten spindle.

–  Press inner bearing race off wheel hub. Lightweight wheel hub → Chapter

Pressing wheel hub into 82 mm Ø wheel bearing –  When pressing in, the thrust pad -VW 511- must only bear against the inner race.

Installing –  Insert wheel bearing unit in wheel bearing housing. –  Screw in and tighten countersunk bolts -1- → Item. –  Slide outer joint of drive shaft into wheel hub and tighten new hexagon bolt hand-tight. t  Remove any remaining adhesive on thread of outer joint pin.

–  Fit joint pins of both upper links in wheel bearing housing and press down as far as possible by clamping with pliers -T40067-.

–  Install and tighten new bolt -1- and self-locking nut → Item. –  Install ABS speed sensor. –  Install brake disc and brake caliper → Brake system; Rep. Gr. 46. –  Fit and secure wheel → Wheels and tyres; Rep. Gr.44. –  Tighten hexagon bolt for drive shaft (only when vehicle is standing on its wheels - accident risk) → Anchor. Wheel alignment must always be checked and adjusted if necessary using VW/Audi-approved equipment.