Technical data

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Brake systems
The 18-inch high-performance braking system
in the Audi Q7 takes a powerful hold with its
6-piston fixed callipers on the front axle. A
single-piston floating calliper is used on the rear
axle. The brake discs comprise a cast friction ring
which is connected to the brake disc chamber
by means of steel pins. This so-called floating
mounting ensures that the friction ring remains
tension-free to a major extent, improving
stability under extreme temperature loads.
The axial perforation and cooling channels for
internal ventilation also increase the brake discs’
performance. The use of aluminium not only
reduces the weight of the brake discs, it also
improves the weight balance of the unsprung
masses.
For even more demanding loads, the Audi Q7 V12
TDI quattro is equipped with a 20-inch ceramic
brake* with an 8-piston fixed calliper as standard
(optional for 4.2 TDI quattro). With this braking
system, the brake discs on the front axle are
made of a carbon-fibre reinforced ceramic
material. This is based on hard and abrasionproof
silicon carbide with high-strength carbon
fibres embedded. This combination results in an
enormous abrasion resistance which allows
extremely high mileages to be achieved and at
the same time reduces sensitivity to high thermal
loads. In addition, the material is lighter than
steel discs.
Nothing can stop
a top athlete.
Except for a top braking system.
The fuel consumption and CO₂ emission figures can be found from page 106 onwards.
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