Disc brakes
- Mark the position of the rim on the wheel hub with paint. This ensures that the balanced wheel is reinstalled in its original place.
- Raise the car, remove the wheels.
- Inspect the thickness of the brake lining - without the rear metal plate - through the hole in the brake caliper.
- If in doubt, remove the brake pads and measure the thickness of the brake linings.
- Maximum allowable brake lining thickness (wear limit) is 2.0 mm (excluding carrier board thickness). On vehicles with 1.2 / 1.5 liter engines from 1.84 to 8.88, the wear limit is 1.0 mm.
- When the wear limit is reached, the brake pad is replaced. Be sure to replace all pads on the same axle at the same time.
Note: A rough estimate of 1 mm wear on a brake pad occurs after driving at least 1000 km. This rating is given for adverse operating conditions. Under normal operating conditions, pads last longer. With disc brake pad thickness of 5.0mm (taking into account the thickness of the back plate) the remaining service life of the brake pad is at least 3000 km.
- Position the wheels, observing the markings made in relation to the hubs and tighten the wheel nuts crosswise: tightening torque see 19.4.
Drum brakes
- Raise the car from behind see par. 29.
- If the brake shields have an inspection hole, remove the rubber cap from the inspection hole and shine the carrier into the hole. The wear limit is 1.0 mm (board thickness not included).
- If there is no inspection hole or if there is any doubt, remove the brake drum.
- Measure the pad thickness at the most worn point.
- When the wear limit of 1 mm is reached, the brake pad is replaced. Be sure to replace all pads on the same axle at the same time.
- When removing the brake drum, pull back the cuffs of the wheel brake cylinder and check whether it is wet there. If moisture is present, replace the brake cylinder.
Attention: If there is a large difference between the brake pads of the left and right wheels, check the ease of movement of the wheel cylinder.
- Position the wheels, observing the markings made in relation to the hubs and tighten the wheel nuts crosswise: tightening torque see 19.4.