Audi Workshop Service and Repair Manuals

Removing and installing subframe Special tools and workshop equipment required

t  Support bracket -10-222 A-

t  Engine support supplement set -T40093- may be required, depending on engine version. For a detailed description of the steps required to support the engine, refer to → Rep. gr.10.

t  Engine and gearbox jack -V.A.G 1383 A-

t  Support -T10149-

t  Tensioning strap -T10038- Removing –  Remove wheels. –  Remove left and right wheel housing liner → Rep. gr.66. –  Remove noise insulation → Rep. gr.66. –  Remove cross brace → Chapter. –  If fitted, remove subframe shield (left and right) → Chapter. –  Remove anti-roll bar → Chapter. –  Remove vehicle level senders, if fitted → Chapter.

–  Tie up wheel bearing housing with tensioning strap -T10038- on both sides as shown in illustration. –  Remove track control link on both sides → Chapter. –  Remove steering box → Chapter. –  Take up full weight of engine with support bracket → Rep. gr.10. t  Support bracket -10-222 A- t  Engine support supplement set -T40093- may be required, depending on engine version. For a detailed description of the steps required to support the engine, refer to → Rep. gr.10.

–  Unscrew left and right bolts -1- and nuts -3- and take out longitudinal struts -2-.

–  Detach bolt connection -1-. –  Swivel out guide link and tie up to body with wire or similar.

–  On vehicles with electro-hydraulic engine mountings, unplug connector -arrow- for left electro-hydraulic engine mounting solenoid valve -N144- and right electro-hydraulic engine mounting solenoid valve -N145-. –  Depending on engine version, unscrew nut -2- for bracket with electrical wiring on right side of vehicle.

–  Remove bolt from bracket for power steering line -arrow-.

–  Remove bolts -1 and 5- for engine mounting (left and right). –  Move aside retaining plate -2- for engine mounting (left and right). –  Before lowering the subframe, check that all electrical wiring has been disconnected.

Mark installation position of subframe -A- to -D- using a felt-tip pen or similar.

–	Remove bolts -1- to -8- and take out subframe.

Installing Installation is carried out in the reverse sequence. Note the following points: Tightening torques → Chapter „Exploded view of subframe, cross brace, anti-roll bar, coupling rod, subframe shield“ Tightening torques → Chapter „Exploded view of suspension strut with mounting bracket, shock absorber fork, upper links, body brace“ Tightening torques → Chapter „Exploded view of track control link, swivel joint, guide link, vehicle level sender“ Tightening torques → Chapter „Exploded view of wheel bearing housing, wheel bearing unit“

Procedure for attachment of subframe:

–	Fit subframe and align with markings -A- and -B- made earlier. Tighten bolts -2- and -3- to specified torque setting (but do NOT turn further through specified angle).

–  Press subframe into place at markings -C- and -D-. Tighten bolts -5- and -8- to specified torque. –  Screw in bolts -1-, -4-, -6- and -7- and tighten to specified torque. –  Tighten bolts -1- to -8- through specified angle to final setting.   Note t  Bonded rubber bushes can only be turned to a limited extent. The suspension mountings must therefore only be tightened when the suspension is in the unladen position or reference position. t  Lifting suspension to unladen position → Chapter „Lifting suspension to unladen position (vehicles with coil springs)“ –  On vehicles with automatic headlight range control, carry out basic adjustment of headlights → Rep. gr.94. –  If, on vehicles with electronic damping control, the vehicle level sender has been removed and refitted or the linkage detached, the reference position must be re-adapted → Chapter. → Vehicle diagnostic, testing and information system VAS 5051 –  If the reference position has been re-adapted on vehicles with lane departure warning, the lane departure warning control unit -J759- must be recalibrated → Chapter. –  Secure wheel → Wheels and tyres; Rep. gr.44. –  Wheel alignment must be checked and adjusted, see chart → Chapter.