BMW X5: Bleeding Brake System With DSC
Necessary preliminary tasks:
- Remove left microfilter housing cover.
IMPORTANT: When replacing or repairing, observe the filling and bleeding instructions for the following parts:
- Tandem brake master cylinder
- Hydraulic unit
- Components and connecting lines which are fitted between these assemblies.
Connect bleeder unit with max. 2 bar filling pressure.
A second person is needed to help carry out this work.
Connect DIS.
Select path: Service functions - Chassis/Suspension - Slip control systems - Bleeding procedure.
Connect brake fluid changer to expansion tank and switch on.
IMPORTANT: Check relevant Operating Instructions for each device.
Charging pressure should not exceed 2 bar.
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Fig. 9: Connecting Brake Fluid Changer To Expansion Tank
Flushing brake system completely
Connect bleeder hose with collecting tray to bleeder valve on rear right brake caliper.
Open bleeder valve and purge until clear, bubble-free brake fluid emerges.
Close bleed valve.
Follow same procedure on rear left, front right and front left wheel brake.
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Fig. 10: Connecting Bleeder Hose With Collecting Tray
Bleeding rear-axle brake circuit
Connect bleeder hose with collecting tray to bleeder valve on rear right brake caliper.
Close bleeder valve.
Run bleeding routine with DIS with bleeder valve open.
After completing routine, press brake pedal 5 times to floor; clear and bubble-free brake fluid must flow out.
Close bleed valve.
Repeat procedure at rear left.
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Fig. 11: Connecting Bleeder Hose With Collecting Tray
Bleeding front-axle brake circuit
Connect bleeder hose with collecting tray to bleeder valve on front right brake caliper.
Close bleeder valve.
Run bleeding routine with DIS with bleeder valve open.
After completing routine, press brake pedal 5 times to floor, clear and bubble-free brake fluid must flow out.
Close bleed valve.
Repeat procedure at front left.
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Fig. 12: Connecting Bleeder Hose With Collecting Tray To Bleeder Valve
Switch off brake fluid changer and remove from expansion tank.
Check brake fluid level.
Close expansion tank.
NOTE: Pay attention to rubber seal (1) in sealing cap.
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Fig. 13: Identifying Rubber Seal
READ NEXT:
Replacing Fluid In ABS/ASC+T Brake System
Necessary preliminary tasks:
Remove left microfilter housing cover.
Read and comply with General Information.
IMPORTANT: When carrying out repairs to the brake system, follow the
procedure set ou
Overview Of Front Brakes
Fig. 17: Identifying Front Brake Components
Brake disc
Brake caliper
Brake-pad wear sensor
Brake pads
Pulse generator
Brake hose
Brake guard plate
Checking thickness of brake pad
Special to
SEE MORE:
Regulator
MANUAL EMERGENCY RELEASE OF TRANSMISSION LOCK
In the event of a power supply interruption, e.g. flat battery or electrical
fault, the transmission lock must be
manually released, otherwise the wheel will be locked and the vehicle cannot be
moved.
IMPORTANT: Secure vehicle against rolling, e.g. wit
Replacing Pressure Line For Power Steering (From Cutting Line To
Steering Gear) (N62)
WARNING: Danger to life!
Mount securing fixture for vehicle on lifting platform to prevent the
vehicle from slipping off or tilting down.
Secure engine in installation position to prevent it from falling down.
WARNING: Danger of poisoning if oil is ingested/absorbed through the
skin!
Risk of injur
