10:20Air Brakes Explained Simply :: Service, Parking and Emergency Brakes One & the Same
Smart Drive Test
Watch on YouTubeImage pending
Brake disc
BMW
1 162 315
BMW
1 165 211
BMW
34 21 1 162 315
BMW
34 21 1 165 211
BMW
34 21 6 855 155
BMW
34 21 6 864 903
BMW
6 855 155
BMW
6 864 903
Watch maintenance and replacement tutorials on YouTube.
10:20Smart Drive Test
Watch on YouTube
12:53
5:57A brake disc (rotor) is the metal disc that the brake pads clamp onto to slow the wheel.
When the pads press against the spinning disc, friction converts the vehicle's motion into heat, which the disc dissipates; commercial vehicle discs are large and heat-resistant for high loads and repeated braking.
Mounted at the wheel as part of a disc brake. Because braking is safety critical, discs and pads are inspected on schedule and replaced by axle set by a qualified technician.
Yes — it is linked to 8 OE-compatible part number(s), shown in the compatible parts section above.