BMW X5 Owners & Service Manuals

BMW X5: Checking Brakes On Test Stand

IMPORTANT: Only brake test stands (analyzers) with test speeds of 2.5 - 6 km/h may be used.

Before driving onto the brake test stand (dynamic brake analyzer), switch off the Hill Descent Control (HDC) and keep it switched off while testing the brakes.

The HDC indicator lamp must not light up!

NOTE: It is possible for the HDC indicator lamp to go out or not to light up even when HDC mode is activated if HDC is temporarily unavailable on account of high operating temperature.

Brakes
Fig. 1: Identifying HDC Indicator Lamp

Necessary preliminary tasks:

IMPORTANT: For testing, turn on the ignition and make sure the transmission selector lever is in the "N" position.

Comfort access: insert remote control in ignition lock.

NOTE: If the remote control is not inserted in the ignition lock, the "P" transmission position is selected automatically after approx. 30 minutes.

Failure to comply with this instruction may result in damage to the test stand or to the vehicle.

Visual and function checks of actuating and warning devices.

Front brakes:

Brakes
Fig. 2: Identifying Front Brake Actuating And Warning Devices

Rear brakes:

Brakes
Fig. 3: Identifying Front Brakes Actuating And Warning Devices

Parking brake :

IMPORTANT: The test may only be carried out with the engine switched off, the transmission selector lever in the "N" position and the ignition switched on.

NOTE: The electromechanical parking brake cannot be tested on a plate test stand!

Brakes
Fig. 4: Identifying Front Brakes Actuating And Warning Devices

NOTE: When the engine is running, additional braking action will otherwise be exerted by the DSC system on all the wheels.

NOTE: Parking brake indicator lamp in instrument cluster lights up red. Duo-servo brake (actuating unit) is applied. Roller dynamometer shuts down after locking of wheels (slip) or vehicle is pushed out of roller dynamometer

NOTE: Duo-servo brake (actuating unit) is released.

Brakes
Fig. 5: Identifying Parking Brake Indicator Lamp Button

Brakes
Fig. 6: Identifying Front Brakes Actuating And Warning Devices

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