34 52 580 Removing and installing / replacing rear pressure sensor for ACC

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Read and comply with General Information, refer to 34 00 ... GENERAL INFORMATION .

After completing tasks, bleed brake system, refer to 34 00 025 REPLACING FLUID IN ABS/ASC+T BRAKE SYSTEM .

Apply pedal prop and depress brake pedal slightly. This prevents brake fluid from emerging from the expansion tank and air from entering the brake system after the brake lines have been detached.

Fig 1: Depressing Brake Pedal

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Vehicles with N52 engine:

If necessary, remove heat shield (1).

Fig 2: Removing Heat Shield

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Installation:

Make sure heat shield is correctly seated.

If necessary, replace heat shield.

Disconnect plug connection (1).

Release pressure sensor (2) and remove.

Fig 3: Removing Pressure Sensor

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Installation:

Tightening torque, refer to 34 51 12AZ in BRAKES - TIGHTENING TORQUES - 645CI .