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Brakes, suspension & tyres Audi A4 2005 - 2008 Diesel 2.0

OnDemand step-by-step maintenance & repair BETA

Audi A4 2005 - 2008  | 2.0 Brakes, suspension & tyres

  • time 20 minutes
  • difficulty 3
Start with the front wheels
With wheel off the ground, check for wear in the wheel hub bearings by grasping the wheel and trying to rock it. Very slight play is OK, but if the movement is appreciable, you should seek further advice
Now remove the wheel
Check condition of the brake discs. Some light scoring is normal on the area in contact with the brake pads, but if heavy scoring and/or cracks found on the disc or around the wheel bolt holes, the disc must be renewed. ALWAYS replace both front discs & pads
Now locate the brake pads, there are two, one on each side of the disc. Locate the brake pad wearing surface
Using a ruler, measure the approximate thickness of the remaining wear material on the brake pad. If it is less than 2.0mm, all front pads need to be replaced
TIP! - Virtually all cars have this inspection window in the brake caliper body, you can usually see the brake pad thickness from here
Now quickly check all the brake pipes for condition, check for any leaks, also inspect the rubber gaitors for integrity. Seek advice should you detect a problem. Replace the wheel and repeat on the other side
As with the fronts, check for wear in the wheel hub bearings by grasping the wheel and trying to rock it. Very slight play is OK, but if the movement is appreciable, you should seek further advice
Check condition of the rear brake discs
Locate rear brake pads
Measure brake pad wear thickness. If it is less than 7mm – NOTE this measurement includes the thickness of the wear pad AND backing plate – all rear pads need replacement
Take a good look around brake system and the suspension arm, check for any leaks. Seek advice should you any detect leakage and/or serious damage to the components
Check rubber exhaust mountings
Before refitting the tyres, take a look at the tyre tread, there is a UK legal requirement to have a minimum of 1.6mm remaining tread depth. Also check sidewalls for any kerb damage
Finally, check the condition of the spare wheel / emergency tyre repair system