SUBFRAME, Securing

Special tools and workshop equipment required

Torque Wrench 1332 40-200Nm: VAG1332
Engine and Gearbox Jack: VAS6931
Locating Pins: T10096
Rear Axle Support: T10552
Rear Axle Support - Locating Bores : T10552/1
Rear Axle Support - Support: T10552/2

Tools, Preparing:

-- Loosen the bolts -arrows-.

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-- Adjust the dimension -a-.

Dimension -a- = 250 mm

-- Tighten the bolts to 10 Nm again.

-- Remove the screw in the direction of -arrow-.

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-- Turn the : T10552/2 -2- so that the profile is perpendicular to the direction of travel.

-- Adjust the dimension -b-.

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FWD vehicles -b- = 270 mm.
AWD vehicles -b- = 410 mm.

-- Tighten the plug -arrow- again to 10 Nm.

-- Loosen the left and right lower : T10552/1 -3-.

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-- Adjust the dimension -c-.

Dimension -c- = 47 mm.

-- Turn the left and right threaded sleeve from the : T10552/1 -3- until the dimension -d- is reached.

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FWD vehicles -d- = 230 mm.
AWD vehicles -d - = 215 mm.

-- Place the : T10552 -1- on the : VAS6931 -2-.

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-- Tighten the bolt -right arrow-.

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Tighten the M6 bolt to 5 Nm.
Tighten the M8 bolt to 10 Nm.

Procedure:

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

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

Audi A3 Cabriolet:

Fig 1: Subframe Bracket

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-- Loosen the bolts -3- for the subframe bracket -2- and remove bolt -1- to do this conterhold the nut.

-- Remove the bolts -1 through 4- and the diagonal brace.

Fig 2: Rear Diagonal Brace For The Audi A3 Cabrio

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FWD Vehicles:

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-- Bring the prepared Rear Axle Support: T10552 with the Engine and Gearbox Jack: VAS 6931 to rest on the crossbrace.

The Mounting Pins : T10552/1 engage in the holes on the back of the subframe.

-- Secure the subframe with the rear axle support tensioning strap.

AWD Vehicles:

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-- Remove the rear driveshaft tube with the flexible disc and vibration damper from the rear final drive. Refer to the appropriate Service Information .

-- Support the driveshaft -3- at the tunnel brace -1- using a wooden block -2-.

-- Slide the rear driveshaft tube as far as possible in the direction of the transmission.

-- Position the : T10552 -1- with the : VAS6931 -5- under the subframe and lift.

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-- Insert the : T10552/1 -2- in the holes on the subframe -A arrows-.

-- Secure the : T10552/2 -3- on the subframe using the tensioning strap -4-.

Subframe Version 1:

To secure the subframe the : T10096 must be installed at the left and right at the positions -1- one after the other.

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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.

-- Remove a bolt from -1- for the subframe.

-- Install the locating pin -1- from the : T10096 and tighten to a maximum 20 Nm.

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-- Repeat procedure for the second front bolt and the rear subframe bolts.

The subframe position is now secured.

Subframe Version 2:

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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.

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

To secure the subframe the : T10096 must be installed at the left and right at the positions -2 and 3- one after the other.

-- Remove a bolt from -arrow- for the subframe.

Fig 3: Identifying Front Bolts

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-- Install the locating pin -1- from the : T10096 and tighten to a maximum 20 Nm.

Fig 4: Identifying Locating Pins

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-- Repeat procedure for the second front bolt and the rear subframe bolts.

The subframe position is now secured.

Remove the : T10096 .

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

-- Only remove one locating pin diagonally and install a new locating pin in this location and tighten.

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 .

-- Install the driveshaft. Refer to the appropriate Service Information .

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

Tightening Specifications

Refer to OVERVIEW - SUBFRAME
Diagonal braces. Refer to OVERVIEW - UNDERBODY BRACING .
Refer to OVERVIEW - MUFFLER .