SUBFRAME, Securing

Special tools and workshop equipment required

Procedure

-- Support the engine in the installation position. Refer to ENGINE, SUPPORTING IN INSTALLATION POSITION .

-- Remove the front wheels. Refer to WHEELS AND TIRES .

-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- Remove the left and right wheel housing liner sections. Refer to OVERVIEW - FRONT WHEEL HOUSING LINER .

-- Support the subframe with the : VAS6931 and the : T40173 . (Shown on a vehicle without sway stabilization).

Courtesy of AUDI OF AMERICA, LLC

-- Secure the subframe with the tensioning strap -arrow-.

CAUTION:

Improper Handling Increases the Risk of Damaging the Threads in the Vehicle Body.

- Never use an impact wrench to loosen or tighten.

- Position the bolts by hand only and screw in the first threads.

To secure the subframe the : T40327 must be installed one after the other on the left and right at the positions -1 and 2-.

Fig 1: Identifying Subframe Bolts
Courtesy of AUDI OF AMERICA, LLC
The locating pins must only be tightened to a maximum of 20 Nm or else the locating pin bolts will be damaged.
Due to the ribbed washers for the bolts, the holes for the subframe are slightly peened. They must be deburred if necessary.

-- Replace the bolts -1 and 2- one after the other on both sides of the vehicle via the : T40327 and tighten to 20 Nm.

-- Remove the left and right bolts -3-.

Remove the : T40327

Removal is performed in the reverse order. Note the following:

-- Only remove a locating pin in a diagonal sequence. Install and tighten a new bolt in this location.

CAUTION:

Improper handling increases the risk of damaging the threads in the vehicle body.

- Never use an impact wrench to loosen or tighten.

- Position the bolts by hand only and screw in the first threads.

CAUTION:

There Is a Risk of Accident Due to Threaded Connections That Are Not Tightened Correctly.

- Tighten threaded connections correctly before driving on public roads.

-- A road test must be performed after completing repairs. If the steering wheel is crooked, the wheels must be aligned. Refer to AXLE ALIGNMENT .

Tightening Specifications