Audi A4 Owners Manual

Removable towing bracket
Driving tips / Towing a trailer / Removable towing bracket

Introduction

Special care is required when fitting and removing the towing bracket.

Audi A4: Removable towing bracket. Luggage compartment with towing bracket

Luggage compartment with towing bracket

The removable ball joint attachment for the towing bracket is carried under the floor panel on the left-hand side of the luggage compartment and is secured by a strap.

The ball joint can be fitted and removed by hand.

Audi A4: Removable towing bracket. WARNING

  • Never use tools of any kind when fitting and removing the ball joint. This could damage the mechanism which locks the ball joint in place and impair its safety (accident risk).
  • Secure the ball joint again with the strap when you have finished using it.

Audi A4: Removable towing bracket. Note

  • Do not attempt to modify or repair the ball joint or other towing bracket components.
  • Should you have any difficulties when using the towing bracket, or suspect that it is not fitted properly, contact a qualified workshop.
  • Before setting off, always check that the ball joint is secured properly ⇒ page 238.
  • Never disengage the ball joint with the caravan / trailer still hitched or with a bicycle rack or similar accessory still attached.
  • It is advisable to remove the ball joint when you are not towing a trailer. Fold the socket back to its original position so that the mounting fixture is properly closed.
  • The ball joint must be removed if you intend to clean the car with a steam cleaning attachment. Make sure that the mounting fixture is properly closed.
  • For installation and removal of the ball joint we recommend that the gloves provided be used.

Fitting the ball joint (step 1)

Audi A4: Removable towing bracket. Area below rear bumper: Folding down the socket

Area below rear bumper: Folding down the socket

Audi A4: Removable towing bracket. Socket (folded down)

Socket (folded down)

Fold the socket unit all the way out in the direction of the arrow ⇒ fig. 236.
The cover piece is held automatically in the open position.
Check that the mounting for the towing bracket, which will now have become visible -arrow- ⇒ fig. 237, is free of dirt, and clean if necessary ⇒ Audi A4: Removable towing bracket.  Also check the shaft section of the ball joint and its associated mechanical parts.
Also check the shaft section of the ball joint and its associated mechanical parts to make sure they are clean and undamaged.

Audi A4: Removable towing bracket. It is important to keep the mounting fixture clean. Otherwise the ball WARNING

It is important to keep the mounting fixture clean. Otherwise the ball joint may fail to engage securely (accident risk).

Fitting the ball joint (step 2)

Audi A4: Removable towing bracket. Removable towing bracket: Ball joint

Removable towing bracket: Ball joint

The spring mechanism inside the ball joint must be in the "ready" position.

Check that the red marking 2 ⇒ fig. 238 on the knob is inside the green zone on the ball joint.
Check that the locking ball 1 is inside the hole in the shaft section of the ball joint.
Check that the knob protrudes visibly from the ball joint, so that there is a clear gap 3 between the knob and the ball joint.

The ball joint can only be installed if the internal spring mechanism is in the ready position.

Fitting the ball joint (step 3)

Audi A4: Removable towing bracket. Removable towing bracket: Setting the spring mechanism to the

Removable towing bracket: Setting the spring mechanism to the "ready" position

Audi A4: Removable towing bracket. Removable towing bracket: Inserting the ball joint

Removable towing bracket: Inserting the ball joint

Setting the spring mechanism to the "ready" position (if required)

Insert the key 4 ⇒ fig. 239 for locking the ball joint into the lock on the knob and turn it clockwise.
Pull out the knob in direction a, hold and turn in direction b until the locking ball 5 engages ⇒ Audi A4: Removable towing bracket. Inserting the ball joint.

Inserting the ball joint

With the spring mechanism in the ready position, insert the ball joint into the mounting fixture and push it upwards, fig. 240 in the direction indicated (arrow) ⇒ Audi A4: Removable towing bracket. engage automatically with an audible click.. The spring mechanism should then engage automatically with an audible click.
Lock the ball joint by turning the key anti-clockwise.
Take out the key and press the cover cap provided onto the lock.

Audi A4: Removable towing bracket. WARNING

  • If it is not possible to set the spring mechanism to the "ready" position as described above, do not use the ball joint. Please take your vehicle to a qualified workshop.
  • To avoid injury, keep your hands away from the knob and the cover piece when inserting the ball joint into the mounting fixture.

Audi A4: Removable towing bracket. Make sure that the knob can turn freely when the ball joint is inserted. Note

Make sure that the knob can turn freely when the ball joint is inserted.

Fitting the ball joint (step 4)

Audi A4: Removable towing bracket. Removable towing bracket: Safety check

Removable towing bracket: Safety check

Audi A4: Removable towing bracket. Area below rear bumper: Electrical socket for trailer

Area below rear bumper: Electrical socket for trailer

Safety check

Check that the green marking 6 ⇒ fig. 241 on the knob is inside the green zone on the ball joint.
Check that the knob is directly against the ball joint, so that there is no gap 7 between the knob and the ball joint.
Check that the ball joint is locked and the key is removed (so that the knob cannot be pulled out).
Check that the ball joint fits tightly in the mounting fixture (try moving it about to check).

Electrical socket for trailer

The cable of the towing bracket can be connected to the socket, fig. 242.

If the safety check is not satisfactory, the ball joint must be fitted again properly.

Audi A4: Removable towing bracket. To avoid accidents, the ball joint must meet all the safety requirements WARNING

To avoid accidents, the ball joint must meet all the safety requirements listed in the safety check. The towing bracket must not be used if any one of these requirements is not met. If this is the case, you should contact a qualified workshop.

Removing the ball joint

Audi A4: Removable towing bracket. Removable towing bracket: Removing the ball joint

Removable towing bracket: Removing the ball joint

Audi A4: Removable towing bracket. Area below rear bumper: Folding up the socket

Area below rear bumper: Folding up the socket

Take off the cover cap and insert the key a ⇒ fig. 243 in the lock on the knob.
Unlock the ball joint by turning the key clockwise.
Take hold of the ball joint and pull out the knob in direction a.
Keep hold of the knob and turn it as far as it will go in direction b.
Release the knob. The spring mechanism will remain in the "ready" position ⇒ Audi A4: Removable towing bracket.  Pull the ball joint down out of the mounting fixture..
Pull the ball joint down out of the mounting fixture.
Then swivel the socket up ⇒ fig. 244 as far as it will go. The mounting fixture will be closed automatically.
Put away the ball joint attachment under the floor panel in the luggage compartment.

Audi A4: Removable towing bracket. Make sure that the socket unit has closed off the mounting fixture of the WARNING

Make sure that the socket unit has closed off the mounting fixture of the towing bracket properly. Otherwise the ball joint may fail to engage securely if dirt accumulates in the mounting fixture.

Towing bracket (retrofitting)

If required, the vehicle can be retrofitted with a towing bracket.

Audi A4: Removable towing bracket. Positions of securing points (side view)

Positions of securing points (side view)

Audi A4: Removable towing bracket. Positions of securing points (from above)

Positions of securing points (from above)

If a towing bracket is to be fitted after the car is purchased, this must be done according to the instructions of the towing bracket manufacturer.

The securing points, which are marked by an A in the illustrations ⇒ fig. 245 and ⇒ fig. 246, are located under the vehicle.

Audi dealers are familiar with the method of installation and any modifications which may be required for the cooling system.

Audi A4: Removable towing bracket. WARNING

  • If a towing bracket is retrofitted, the installation should be carried out by a qualified workshop.
  • If the towing bracket is incorrectly fitted, this could cause a safety risk.
  • For your own safety, please observe the instructions provided by the manufacturer of the towing bracket.

Audi A4: Removable towing bracket. If the connector socket is not fitted correctly, this could cause damage to Caution

If the connector socket is not fitted correctly, this could cause damage to the vehicle's electrical system.


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