Audi TT (2007 year). Manual — part 232

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

9

Rear axle

Overview

The rear axle of the Audi TT is basically identical in
design and function to the rear axle on the Audi A3 .
The wheel carriers, damper bearings and wheel
bearings are modified versions of the components
used in the Audi A3. Track width has been increased
by 15 mm on each side over the Audi A3.

381_008

Rear axle for front-wheel drive

The suspension and damping components (springs,
dampers and anti-roll bars) have been adapted to
the specific requirements of the Audi TT. Additional
stone chip protection is provided for certain mar-
kets. The trailing arms on these models are pro-
tected by plastic claddings.

381_009

Rear axle for quattro models

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

10

Axles

System components

Wheel carrier, wheel bearing

The wheel carrier has been modified geometrically
in order to increase track width. Front-wheel-drive
models use a second-generation wheel bearing
which is larger than the bearing on the Audi A3.The
diameter of the wheel carrier bearing journal has
been adapted to match the internal diameter of the
wheel bearing.

Ribbed washers are used for attaching the track
link, upper wishbones and damper to the wheel car-
rier.
These washers are required to achieve the neces-
sary surface pressures.

381_010

Wheel carrier

Wheel bearing

381_011

Ribbed washers

Note

Note: Always replace the ribbed washers during
removal and installation of parts in the service
workshop.

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

11

Wheel alignment

Front axle

Toe and camber can be adjusted at the front axle.
The toe-out values are adjusted at the track rods.
Unlike on the Audi A3, left and right camber can be
adjusted separately.

The camber is adjusted at the connection between
the wishbone and the guide bearing. For this pur-
pose, the holes in the guide bearing are oblong in
shape.

381_012

Track rod

Guide bearing

Wishbone

Rear axle

The camber and toe can be adjusted at the rear
axle.The adjustment procedure is the same as for
the Audi A3.

381_013

Camber adjustment

Toe adjustment

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

12

Overview

Brake system

ESP:

TEVES Mk60E1 with

optional Tyre Pressure Monitor

Front axle brake caliper:

16" for all four-cylinder models

17" for all six-cylinder models

Brake servo:

10", 11", 7/8", with contactless brake

light switch

without dual rate characteristic