34 21 Rear Brake Discs E90

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2011 BMW 323i, 2010 BMW 335xi, and 2010 BMW 335i. However, it is still accessible from the selected car via links, so may be relevant.

REAR BRAKE DISCS SPECIFICATION

IMPORTANT: New brake pads may only be fitted if the brake disc thickness is greater than the minimum brake disc thickness (MIN TH). Minimum brake disc thickness during general inspection (GI):Nominal size thickness minus 2.4 mm(Not applicable to perforated brake discs and M vehicles)M vehicles and perforated brake discs:Nominal size thickness minus 1.6 mmDepending on: Engine type Transmission version Equipment specification (e.g. maximum load increase, chassis official-use, national version, etc.) different brake discs can be fittedThe brake discs must always be assigned by way of the relevant vehicle identification number and the Electronic Parts Catalogue (ETK)!
Different thicknesses on brake linings	Max. mm	0.01
Max. machining limit per friction ring side (M vehicles and perforated brake discs must not be machined). Brake disc minimum thickness (MIN TH) must not be undershot.	mm	0.8
Nominal size (diameter x thickness)	mm	350x24
Brake disk minimum thickness (MIN TH) stamped on brake disk body	mm	22.4
Nominal size (diameter x thickness)	mm	336x22
Nominal size (diameter x thickness)	mm	324x22
Brake disk minimum thickness (MIN TH) stamped on brake disk body	mm	20.4
Nominal size (diameter x thickness)	mm	300x20
Brake disk minimum thickness (MIN TH) stamped on brake disk body	mm	18.4
Nominal size (diameter x thickness)	mm	296x10
Brake disk minimum thickness (MIN TH) stamped on brake disk body	mm	8.4
Wear warning from residual lining thickness	mm	3.7