34 11 Front Brake E90
| 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 mm Depending on: Engine type Transmission version Equipment specification (e.g. maximum load increase, chassis official-use, national version, etc.) different brake discs can be fitted The 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 | 360x30 |
| Nominal size (diameter x thickness) | Mm | 348x30 |
| Brake disk minimum thickness (MIN TH) stamped on brake disk body | Mm | 28.4 |
| Nominal size (diameter x thickness) | Mm | 338x26 |
| Brake disk minimum thickness (MIN TH) stamped on brake disk body | Mm | 24.4 |
| Nominal size (diameter x thickness) | Mm | 330x24 |
| Nominal size (diameter x thickness) | Mm | 312x24 |
| Nominal size (diameter x thickness) | Mm | 300x24 |
| Brake disk minimum thickness (MIN TH) stamped on brake disk body | Mm | 22.4 |
| Nominal size (diameter x thickness) | Mm | 292x22 |
| Brake disk minimum thickness (MIN TH) stamped on brake disk body | Mm | 20.4 |
| Wear warning from residual lining thickness | Mm | 3.7 |
| 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 mm Depending on: Engine type Transmission version Equipment specification (e.g. maximum load increase, chassis official-use, national version, etc.) different brake discs can be fitted The brake discs must always be assigned by way of the relevant vehicle identification number and the Electronic Parts Catalogue (ETK)! |
FRONT BRAKE SPECIFICATION
34 41 Parking Brake E90
| Handbrake drum diameter Models: 316i; 318i; 318d; 320i; 320d; 323i; 325i; 325d; 328i | Mm | 160 |
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| Handbrake drum diameter Models: 320xd; 320si; 325xi; 328xi; 330i; 330xi; 330d; 330xd; 335i; 335xi; 335d; M3 | Mm | 180 |
| Handbrake drum diameter Models: 316i; 318d; 318i; 320i; 320d; 320xd; 323i; 325i; 325d; 328i; 328xi; 330i; 330d; 330xi; 330xd; 335d; 335i; 335xi | Mm | |
| Surface roughness of braking surfaces (precision-turned) | Ra μ | 0.5... 3.5 |
| Minimum lining thickness | Mm | 1.5 |
PARKING BRAKE SPECIFICATION
34 21 Rear Brake Discs E90
| 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 mm Depending on: Engine type Transmission version Equipment specification (e.g. maximum load increase, chassis official-use, national version, etc.) different brake discs can be fitted The 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 |
| 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 mm Depending on: Engine type Transmission version Equipment specification (e.g. maximum load increase, chassis official-use, national version, etc.) different brake discs can be fitted The brake discs must always be assigned by way of the relevant vehicle identification number and the Electronic Parts Catalogue (ETK)! |
REAR BRAKE DISCS SPECIFICATION
34 00 Testing and bleeding brakes E90
| Brake fluid: refer to Operating Fluids | | |
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| Leak test with engine stopped: if applicable discharge vacuum reservoir by operating brake pedal firmly about 10 times | | |
| Approx. force on pedal | Approx. N | 500 |
| Equals approx. line pressure | Approx. bar | 34 |
| Max. pressure drop within 2 min. | % | 8 |
| Brake booster function test (with engine running) | | 70 - 100 |
| Approx. force on pedal | Approx. N | 200 |
| Line pressure | Bar | |
TESTING AND BLEEDING BRAKES SPECIFICATION
