00 General, Technical Data: Specifications: Brakes
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The following tables show the PR number code key. This is important in order to know the brake caliper/brake disc and brake pad combination.
| Brake System | ||||
| Dual-circuit brake system with diagonal distribution and ABS, EBV, EDL, ASR, ESP, ECD and UP |
| Front Wheel Brakes | ||||
|---|---|---|---|---|
| Production-relevant no. (Pr. no.) | 1LT | 1LA/1LB | 1LJ | |
| Brake Caliper | FN3 16" | FBC 16" | FBC 17" | |
| Brake disc ventilated | diameter mm | 314 | 320 | 345 |
| Brake disc, thickness | mm | 25 | 30 | 30 |
| Brake disc, wear limit | mm | 23 | 28 | 28 |
| Pad thickness with backing plate and dampening sheet | mm | 20.3 | 20.3 | 20.3 |
| Brake pad wear limit with backing plate and dampening sheet | mm | 10 | 10 | 10 |
| Rear Wheel Brakes | |||
|---|---|---|---|
| Production-relevant no. (Pr. no.) | 1KW/2EH | 1KE | |
| Brake Caliper | CII-43 EPB (16") | CII-43 EPB (17") | |
| Brake Rotor | diameter mm | 300 | 330 |
| Unvented brake disc thickness | mm | 12 | ------ |
| Internally vented brake disc thickness | ------ | 22 | |
| Brake disc, wear limit | mm | 10 | 20 |
| Brake caliper, piston | diameter mm | 43 | 43 |
| Pad thickness with backing plate and dampening sheet | mm | 17.5 | 17.5 |
| Brake pad wear limit with backing plate and dampening sheet | mm | 7 | 7 |
The brake system installed in a vehicle is indicated on the vehicle data label by the relevant PR number -A and B-.
- Allocate correct components.
NOTE:
Hairline cracks on brake disc friction surfaces are often observed during brake repairs. Hairline cracks up to 10 mm long are not a technical flaw and are not cause for brake disc replacement.
Brake discs with brake pads that have worn through should be replaced.