Audi Workshop Service and Repair Manuals

Special tools and workshop equipment required

• ◆ Hose clamps 3094
• ◆ Engine/gearbox lifter V.A.G 1383 A
• ◆ Ball joint puller Matra V/176
• ◆ Caliper gauge

Note:

Observe rules for cleanliness .

• ‒ → With wheels in straight ahead position, secure steering wheel with adhesive tape to prevent inadvertent turning -arrows-.

Left-hand drive vehicles:

• ‒ → Unscrew plastic nuts -1- and take out cover -A-.

Right-hand drive vehicles:

• ‒ → Remove footrest -arrows-.

All models:

• ‒ → Screw out bolt -1-.
• ‒ On vehicles with clamping ring -arrow-, slacken off hexagon socket-head bolt until mesh section can be compressed.
• ‒ Detach universal joint from steering box.

• ‒ → Pinch off hose from reservoir with hose clamp 3094.

• ‒ → Pinch off hose at vane pump with hose clamp 3094.

• ‒ → Detach noise insulation -arrows-.

• ‒ → On vehicles with automatic headlight range control, unscrew bracket for headlight range control unit at top left of wheel housing -arrows-.

• ‒ Unscrew nut from track rod end.

Notes:

• ◆ Leave nut screwed several turns onto track rod end to protect thread.
• ◆ Fig. shows Audi A3 vehicle.

• ‒ → Use puller Matra V/176 -Item 1- to press track rod off steering arm.

Left-hand drive vehicles:

• ‒ Place drip tray in position.
• ‒ → Unscrew expansion hose -2- from steering box and seal off with a plastic bag and adhesive tape.
• ‒ Seal tapped hole at steering box (using plastic plug for example).
• ‒ Return pipe -1- can be unscrewed after lowering subframe.

Right-hand drive vehicles:

• ‒ Place drip tray in position.
• ‒ → Unscrew expansion hose -arrow- from steering box and seal off with a plastic bag and adhesive tape.

• ‒ → Unscrew return pipe -arrow- from steering box and seal off with a plastic bag and adhesive tape.
• ‒ Seal tapped hole at steering box (using plastic plug for example).

All models:

• ‒ → Unscrew pendulum support at gearbox -arrows B-.

• ‒ → If fitted, disengage rubber mount at front exhaust pipe -arrow-.
• ‒ Slacken off bolts -2- for steering box by several turns.

• ‒ → Prise steering box off subframe (dowel sleeve) -arrow-.
• ‒ Unscrew holder for power steering pressure pipe on left of subframe.
• ‒ Position engine/gearbox lifter V.A.G 1383 A with universal mount V.A.G 1359/2 and wooden block beneath subframe.

• ‒ → Screw out bolts -1- and -3- for subframe.
• ‒ Carefully lower subframe slightly.

Note:

When lowering, pay attention to side noise insulation and holder for hydraulic pipes on left side.

Left-hand drive vehicles:

• ‒ → Unscrew return pipe from clamp -1- and unscrew rotary slide valve housing -2-.

All models:

• ‒ Screw out steering box bolts and take out steering box to rear.

Installing

Note:

Use new sealing rings for hose/pipe connections.

Left-hand drive vehicles:

• ‒ Position steering box on subframe and fit steering box bolts.
• ‒ → Threaded sleeve -1- must be positioned in hole in subframe
• ‒ Rubber insert on opposite side must be positioned on corresponding projection on subframe

Right-hand drive vehicles:

• ‒ Position steering box on subframe and fit steering box bolts.
• ‒ → Threaded sleeve -arrow- must be positioned in hole in subframe
• ‒ Rubber insert on opposite side must be positioned on corresponding projection on subframe

All models:

• ‒ → Dimension -a- must be checked to ensure that steering box is in centre position.
• ‒ Take measurement on left of steering box for LHD/on right of steering box for RHD.
• ‒ Audi A3: Dimension a = 30.5 mm
• ‒ Audi S3: Dimension a = 33.5 mm
• ‒ Adjust by turning steering box pinion.

Left-hand drive vehicles:

• ‒ → Screw return pipe to clamp at steering box.

Note:

On front-wheel drive vehicles, there must be a gap of 10 mm between return pipe -1- and steering box -3-.

• ‒ Screw return pipe with new sealing rings to rotary slide valve housing.

Right-hand drive vehicles:

• ‒ → Screw return pipe with new sealing rings to rotary slide valve housing.

Note:

Make sure return pipe rests on locating pin -1-.

All models:

Note:

When securing pipes, make sure they cannot catch or become abraded.

• ‒ Check correct positioning of sealing collar at steering box pinion.
• ‒ Raise subframe and, in doing so, guide steering box pinion into opening in floor of vehicle.

Perform further installation in reverse order, paying attention to the following:

• ‒ Install subframe .
• ‒ Insert track rods in steering arm. If joint pin rotates on tightening, provide support with Allen key (6 mm) or Torx socket wrench (T40).

• ‒ Do not attach universal joint of steering column to steering box pinion until vehicle is standing on ground and wheels are set to straight ahead position.

• ‒ → Tighten bolt -1-.
• ‒ Tighten hexagon socket-head bolt on vehicles with clamping ring
  -arrow-.
• ‒ Top up hydraulic fluid - bleed steering system.

=> Maintenance

Tightening torques

    1)    90°corresponds to quarter turn

    2)    Replace nuts/bolts

Perform wheel alignment after installation.