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Home >> BMW >> 2014 >> M6 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 724 (Distance Systems, Cruise Control - Repair) >> Adaptive Active Cruise Control (Acc) >> 66 31 010 Adjusting ACC sensor (FRR sensor)

66 31 010 Adjusting ACC sensor (FRR sensor)

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Special tools required: 

NOTE: This service information applies to the entire F series with the new ACC sensor (FRR - Full Range Radar).

Special tool required: 

Active Cruise Control ACC adjusting device, complete.

Order number: 81 10 0 021 292

Consisting of:

  1. Mirror, complete
  2. Wheel laser
  3. Slotted diaphragm
  4. Control holder (for initial installation of rail)
  5. Rail
  6. Setup and Operating Instructions (not shown)
    Fig 1: Identifying Mirror, Wheel Laser, Control Holder And Rail
    G09881856Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: A mounting which is not included in the delivery specification is required to support the wheel laser. Use either the quick-action clamp from the existing KDS or ACC wheel holder (2 338 466 ).
NOTE:
NOTE: To set the ACC sensor, connect the BMW diagnosis system and fit the ACC adjusting device.
Select ACC calibration in diagnosis.
  • Service function
  • Chassis and suspension
  • ACC cruise control
  • Start-up of ACC sensor

Handle ACC adjusting device in accordance with mounting and Owner's Handbook provided with device.
NOTE: Further information on the ACC adjusting device can be found in the BMW Workshop Equipment and Planning Documentation.
NOTE: The following step must be taken if there is an "Incorrectly adjusted sensor" fault entry or there is a suspicion of frontal damage.

All except F34. 

IMPORTANT: The vehicle must be parked on a flat, horizontal  surface!
NOTE: For purposes of clarity, graphic shows holder (1) removed.

Hold square (2) against holder (1) as shown.

Fig 2: Identifying Holder And Bubble Level
G08485350Courtesy of BMW OF NORTH AMERICA, INC.

Limit stop leg length: approx. 105 mm

Check vertical orientation in direction of travel with bubble level (3).

Replace holder if necessary. 

IMPORTANT: After replacing the holder, check the ACC sensor position again using the square (2) and bubble level (3).
If the ACC sensor position is still not right, CHECK THE SUPPORT FOR THE BUMPER PANEL AT THE BOTTOM FRONT FOR DAMAGE AND REPLACE IF NECESSARY (except F34).
A damaged/bent holder (1) indicates mechanical misuse of the vehicle and cannot be handled as a warranty case.

Only F34. 

IMPORTANT: The vehicle must be parked on a flat, horizontal  surface!

Hold square (1) against holder (2) as shown.

Check vertical orientation in direction of travel with bubble level (3).

Fig 3: Locating Bolts Of Holder
G09881858Courtesy of BMW OF NORTH AMERICA, INC.

Adjust as appropriate by screws on side of holder (2).

If no correct setting can be attained, replace the complete holder (2).

IMPORTANT: After replacing the holder, check the ACC sensor position again using the square (1) and bubble level (3).
If the ACC sensor position is still not right, check the support for the bumper panel for damage and replace if necessary.
A damaged/bent holder (1) indicates mechanical misuse of the vehicle and cannot be handled as a warranty case.