66 31 001 Adjusting ACC sensor

Special tools required

Unclip trim (1) at points (2) and remove towards front from bumper trim (3).

Installation:

Make sure trim (1) is correctly seated.

Locking hooks (2) must not be damaged.

Fig 1: Identifying Trim, Points And Bumper Trim

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E90/E91 up to build date 09/2008:

Installation:

If necessary, cut off front retaining lug (1) from trim (2).

Distance: A = 10 mm

Fig 2: Cutting Off Front Retaining Lug From Trim

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E90/E91 up to build date 09/2008:

IMPORTANT: Before adjusting ACC sensor, check ease of movement at ACC sensor.

Measure gap dimension between front bumper trim (1) and ACC sensor (2).

Minimum dimension: A = 3 - 5 mm
Maximum dimension: A = 6 - 7 mm

If minimum dimension not obtained:

Carry out preliminary work for ACC sensor adjustment.

Fig 3: Measuring Gap Dimension Between Front Bumper Trim And ACC Sensor

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Carry out adjustment of ACC sensor (1) with special tool 66 3 150 by means of adjusting screws (2).

Fig 4: Adjusting ACC Sensor With Special Tool 66 3 150

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Special tool required:

Active Cruise Control ACC adjusting device, complete.

Order number: 81 10 0 021 292

Consisting of:

Mirror, complete
Wheel laser
Slotted diaphragm
Control bracket (for initial installation of rail)
Rail
Setup and Owner's Handbook (not shown)

NOTE: A holder which is not included in the scope of delivery is required to support the wheel laser. Use either the quick-action clamp from the existing KDS or ACC wheel holder (36 1 100 ).

Fig 5: Identifying Mirror, Wheel Laser And Slotted Diaphragm

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NOTE:

NOTE: To adjust the ACC sensor, connect the BMW diagnosis system and fit the ACC adjusting device.
Select ACC system in diagnosis. Start test module "ACC adjustment" (service functions) and proceed in accordance with instructions.
Handle ACC adjusting device in accordance with mounting and Owner's Handbook provided with device.