Rear Axle Steering Gear, Aligning, AUDI Q7

• The Locking Tool:T40326  is only used for aligning the rear axle steering gear during service.
• When the rear axle steering gear is installed at the factory, the Locking Tool:T40326  may not fit into the guides designed for it. However if this is the case, the steering gear can still be mounted and aligned correctly.

The rear axle steering gear must only be aligned if the factory threaded connection was loosened or under the following circumstances:

• If there are drivability problems.
• If there is high or uneven tire wear.

Special tools and workshop equipment required 

• Locking Tool:T40326  , not illustrated

Procedure

• Vehicles with active suspension: pay attention to the safety precautions. Refer to SAFETY PRECAUTIONS WHEN WORKING ON VEHICLES WITH ACTIVE SUSPENSION .

-- Versions with air suspension: remove the nuts -arrows- and the cover -1- for the air supply unit.

Courtesy of AUDI

-- Remove the left and right bolt -2- for the rear axle steering -3- and replace with new.

Courtesy of AUDI

-- Remove the bolt -4- and replace with new.

-- Lightly install the bolts by hand.

-- Install the Locking Tool: T40326  :

Right Side of Vehicle:

Courtesy of AUDI

• Pay attention to the labeling -2- "rechts/right".
• The "arrow" points in the direction of travel.
• The rear axle steering -1- is positioned on the points -3- on the locking tool pin.
• The pin of the locking tool must engage in the holes -4- on the subframe.

Left side of vehicle

Courtesy of AUDI

• Pay attention to the labeling -3- "links/left".
• The "arrow" points in the direction of travel.
• The half round mounts -2- from the rear axle steering -4- must be positioned on the pin of the locking tool.
• The pin of the locking tool must engage in the holes -1- on the subframe.

-- Tighten the threaded connections for the rear axle steering.

-- Remove the Locking Tool:T40326  .

-- After aligning the rear axle steering drive the vehicle on the wheel alignment platform.

-- Switch off the ignition when the vehicle has come to a stop. This is the only way to ensure that the rear axle steering is in the straight-ahead position.

-- Select the "Rear Axle Steering Gear, Moving into Zero Position" program. Refer to DIAGNOSTIC ENTRIES .

-- Start the selected program and follow the instructions on the Vehicle Diagnostic Tester display.

-- Then measure the vehicle. Refer to AXLE ALIGNMENT .

Tightening Specifications

• Refer to OVERVIEW - REAR AXLE STEERING