Raise the luggage compartment floor covering. Remove the spare wheel. Now there is "access" to the marks "1" on the luggage compartment floor. -Arrow- indicates the direction of travel of the vehicle.
Drill 2 holes at the marks "1" to size "a" = 26 mm. If possible, suck out the chips when drilling. Remove burrs on the holes and carefully remove the chips. Restore the manufacturer's anti-corrosion coating using special materials.
Loosen and remove both bolts "1". These bolts will need to be replaced later. Raise the vehicle. Remove the stabilizer. Secure the intake pipe "A" to the intermediate support of the propeller shaft with the tensioning belt "T10038".
Unscrew the intake pipe bracket from the subframe.
Loosen the clamps "arrows" and remove the rear part of the exhaust system. Remove the noise-insulating casing under the power unit.
Unscrew screws "1" and "2" of the rocker support. In order not to damage the vehicle's rear left ground clearance sensor "G76"...
...disconnect the connector, unscrew the sensor and place it on the support arm "A".
Just release the intermediate support of the cardan shaft "arrows", do not unscrew it.
Press the engine and gearbox forward by hand and fix them in this position with a suitable wooden block "A".
To avoid noises due to imbalance later. Check for marks (dot made with paint) on the elastic coupling and flange/cardan shaft of the rear main gear "arrows" If absent, apply marks defining the position of the elastic coupling and flange of the input shaft of the rear main gear relative to each other "arrows".
Unscrew the cardan shaft from the rear main gear "arrow".
Remove the cardan shaft from the main gear and move it up the middle to the fuel tank "2". In this position, lean it on a suitable wooden block on the tunnel support "1".
Caution: Do not press down on the trampled tank "2".
To be able to remove and install the drive shafts, the final drive in the rear area must be movable.
To do this, unscrew the "arrow" bolt on the front support cushion no more than 5 turns. Unscrew the drive shaft to the left of the main gear.
Lift the main gear "A" in the rear area "arrow 1" and move it as far as possible to the right "arrow 2". Remove the drive shaft on the left "B" from the flange and carefully slide it downwards. Put the main gear back in the installation position. Unscrew the drive shaft to the right of the main gear.
Lift the main gear "A" in the rear area "arrow 1" and move it as far to the left as possible "arrow 2". Remove the drive shaft on the right "B" from the flange and carefully move it downwards. Put the main gear back in the installation position. Grasp the main gear with the tilting device -VAG 1383 A-, secure it on the universal support with a belt to prevent it from falling.
Remove the "arrow" bolt on the front support pad. This bolt will need to be replaced later. Remove the washer at the top "C" on the support pad.
Install the final drive into the vehicle at an angle as shown in the figure and at the same time lower it slightly.
Disconnect electrical connector "A" from all-wheel drive control unit "J492". Disconnect ventilation hoses "arrows" from rear final drive. To remove final drive, lower it further and pull "forward". Pay attention to sufficient "free play" in relation to other elements.
Installation
Secure the main gear from falling with the universal support belt. Bring the main gear to the position shown. Raise the main gear and pass the rear bearings "arrows" over the subframe; while doing this, keep an eye on the free distance to other nodes.
Connect connector "A" to the all-wheel drive control unit "J492". Place the ventilation hoses "arrows" on the ventilation nipples of the final drive. Raise the final drive using the transmission stand to the installation position. Place washer "C" on the support cushion. To be able to remove and install the drive shafts, the final drive must be movable in the rear area. Screw in the front mounting bolt by hand, leaving no more than 5 turns free. Remove the transmission stand from under the vehicle. Raise the final drive "A" in the rear area "arrow 1" and move it as far to the left as possible "arrow 2". Carefully insert the drive shaft on the right "B" up 80 flange. Place the final drive back in the installation position. Screw the drive shaft on the right to the final drive.
Lift the main gear "A" in the rear area "arrow 1" and move it as far to the right as possible "arrow 2". Carefully insert the drive shaft on the left "B" up into the flange. Put the main gear back in the installation position. Screw the drive shaft on the left to the main gear. Tighten the cardan shaft on the main gear.
Tighten the" lower "fastener" arrow "of the main gear. Secure the drive shafts. Secure the lower support of the power unit with "new" bolts. Install the noise insulation. Freely align the intermediate support and secure. Install the rear left ride height sensor "G76". Perform basic adjustment of the headlights using the - Vehicle diagnosis, measuring and information system VAS 5051. Install the exhaust system. Install the stabilizer. Insert" new "bolts "arrow" through the holes in the luggage compartment floor and tighten. Close the holes. If the main gear is to be replaced: check the oil level in the Haldex coupling. Check the oil level in the main gear.
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