Audi Q3: Backrest Adjuster, Removing and Installing

Backrest Adjustment Hand Wheel, Removing and Installing

  Note

Only the hand wheel for the backrest adjustment wheel can be removed and installed.

Special tools and workshop equipment required

• Assembly Tool -3399-

Removing

- Move the front seat all the way forward/up.

- Turn the backrest adjustment wheel -1- until one catch is visible from behind -arrow A-. Use a flashlight if necessary.

- Attach the Assembly Tool -3399- to the catch and pry off the hand wheel -arrow B-.

- Turn the backrest adjustment wheel 120º farther and repeat the process.

- Remove the backrest adjustment hand wheel.

Installing

Install in reverse order of removal.

Installation notes, for example tightening specifications, replacing components. Refer to → Chapter "Overview - Seat Pan, Sill Panel/Tunnel Side Seat Side Trim on Manual Front Seat".

Driver/Front Passenger Backrest Adjustment Motor -V45-/-V46-, Removing and Installing

Special tools and workshop equipment required

• Pop Rivet Pliers -VAG1753B-
• Drill
• Protective eyewear
• Locking compound. Refer to the Parts Catalog.

Removing

  WARNING

• Follow all safety precautions when working with pyrotechnic components. Refer to → Chapter "Pyrotechnic Components Safety Precautions".
• Before handling airbag units (for example, disconnecting the connector), the person handling it must "discharge static electricity". This can be done by touching the door striker, for example.

- Remove the front seat. Refer to → Chapter "Front Seat, Removing and Installing".

- Fasten the front seat on the Engine/Transmission Holder - Seat Repair Fixture -VAS6136-. Refer to → Chapter "Front Seat, Mounting on Fixture for Seat Repair".

- Remove the Seat side trim on the tunnel side. Refer to → Chapter "Seat Side Trim on the Tunnel Side, Removing and Installing".

- Remove the seat side sill panel trim. Refer to → Chapter "Seat Side Trim on Sill Panel Side, Removing and Installing, Power Front Seat".

- Remove the backrest cover. Refer to → Chapter "Backrest Cover, Removing and Installing".

- Mark the angle adjustment of the left and right backrest mounting brackets on the front seat as follows:

- Apply mark -arrow B- to the backrest frame with a waterproof marker -2- directly at the front edge -arrow A- of the hinge -1-.

- Remove nut -3- on the adjustment shaft -4-.

- Remove the cover from the backrest near the backrest hinge. Refer to → Chapter "Backrest Cover and Cushion, Removing and Installing".

- Remove adjustment shaft -5- from the backrest frame -2--arrow-.

- Disconnect harness connector -3- at the backrest adjustment motor.

  Note

Lay plastic film between the seat cover and the backrest frame to protect against metal shavings.

  WARNING

Danger of eye injury.

Wear protective eyewear.

- Drill out rivets -1-, remove backrest adjustment motor -4- with bracket.

Installing

- Check the position of the backrest frame -2- and the anchor -1- on the left and right side.

• The left and right backrest frames must be in the position marked before removal -A and B arrows-.

- If the left and right backrest frames are not in the position marked before removal, correct their position accordingly.

- Set backrest adjustment motor -3- with bracket in place.

• It must still be possible to move the backrest adjustment motor.

- First slide the adjustment shaft through the hinge (tunnel side) as far as the mount -4- in the backrest adjustment motor.

- Check whether the profile of the inserted adjustment shaft and mount in the backrest adjustment motor align.

- If the shaft adjustment profile and the mount in the backrest adjustment motor do not align, connect an external 12-volt power source to the backrest adjustment motor -3- and turn mount until the profiles of the adjustment shaft and mount are aligned

- Slide the adjustment shaft -5- through the mount in the backrest adjustment motor as far as the stop (sill panel trim) -arrow-.

- Install the new nut -3- on the adjustment shaft -4- and tighten it.

- Rivet bracket with motor to the backrest frame -2--1-.

Installation is performed in reverse order of removal, while noting the following:

  WARNING

• Follow all safety precautions when working with pyrotechnic components. Refer to → Chapter "Pyrotechnic Components Safety Precautions".
• Before handling pyrotechnic components (for example, connecting the connector), the person handling it must "discharge static electricity". This can be done by touching the door striker, for example.
• Observe all measures when installing the front seat. Refer to → Chapter "Front Seat, Removing and Installing".

Installation notes, for example tightening specifications, replacing components. Refer to → Chapter "Overview - Front Backrest, Backrest Adjustment Motor".

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