SUBFRAME, Securing

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Special tools and workshop equipment required

Engine and Gearbox Jack:VAS 6931

Fig 1: Engine and Gearbox Jack VAS6931 or VAG1383A
Courtesy of AUDI
Gearbox Support:T40173

Fig 2: Gearbox Support T140173
Courtesy of AUDI
Subframe Locating Pins:T40242 for the rear bonded rubber bushings

Fig 3: Subframe Locating Pins T40242
Courtesy of AUDI
Locating Pins:T40329 , not illustrated, for the front bonded rubber bushing

Procedure

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

-- Remove the muffler. Refer to MUFFLER, REMOVING AND INSTALLING .

-- Remove the left and right underbody trim panels. Refer to OVERVIEW - UNDERBODY TRIM PANELS .

-- Versions with coil springs: remove the rear springs. Refer to SPRING, REMOVING AND INSTALLING, COIL SPRING .

-- Versions with air suspension: perform the system bleeding. Refer to AIR SUSPENSION SYSTEM, FILLING AND BLEEDING .

-- Support the subframe using the Engine and Gearbox Jack:VAS 6931 and Gearbox Support:T40173 as shown on the rear final drive and on the subframe.

Courtesy of AUDI

-- Secure the subframe with the tensioning strap from the engine and gearbox jack.

CAUTION:

There is a risk of damaging the threads on the subframe threaded connection to the body.

The subframe bolts on the body must not be loosened or tightened with an impact wrench.
Always install all bolts by hand for the first few turns.

Vehicle with High-Voltage System:

-- Remove the impact guard. Refer to Front Bumper ; impact guard, removing and Installing.

-- Tighten the left bolt -1- to the tightening specification.

Courtesy of AUDI

Continuation for All Vehicles:

-- Remove the left and right bolt -2- from the rear subframe one after the other and install a locating pin from the Subframe Locating Pins:T40242 .

NOTE:

If the locating pin cannot be inserted, rework the stop plate in the subframe mount near the retaining tabs slightly with a file.

-- Tighten locating pin to 20 Nm.

The subframe position is now secured.

-- Remove the left and right bolts -1- from the subframe.

Subframe Locating Pins:T40242 , Removing

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

CAUTION:

There is a risk of damaging the threads on the subframe threaded connection to the body.

The subframe bolts on the body must not be loosened or tightened with an impact wrench.
Always install all bolts by hand for the first few turns.

WARNING:

Risk of accident!

If the vehicle will be driving on the streets, all bolts and nuts must be tightened properly according to the guidelines.

-- Install the springs. Refer to SPRING, REMOVING AND INSTALLING .

-- 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

Refer to OVERVIEW - SUBFRAME
Refer to OVERVIEW - MUFFLER .
Refer to OVERVIEW - UNDERBODY TRIM PANELS .
Refer to WHEELS AND TIRES