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Home >> BMW >> 2012 >> 740Li >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Chassis Dynamics -- Overview - F01/F02 >> F01 Cruise Control Systems >> System Components >> Vehicle-specific Modifications in Detail >> Long-range Radar Sensor >> Notes

Long-range Radar Sensor: Notes

In terms of physical design, the long-range radar sensor (LRR) for ACC Stop&Go in the F01/F02 is largely identical to the one fitted in the E6x LCI.

Functionally, however, it differs from the sensor in the E6x LCI in that it also calculates the new collision warning of the Adaptive Brake Assistant.

In the F01/F02, the long-range radar sensor no longer has a connection to the wake-up line. Instead, it is supplied with power by terminal 15N and is thus hard switched. Terminal 15N is tapped off at the front fuse carrier. The long-range radar sensor contains a terminating resistor (for the local CAN) as it does in the E6x LCI.

The installation location of the long-range radar sensor and the way it is mounted have been adapted to the structural conditions specific to the F01/F02.

Fig 1: Installation Location Of Long-Range Radar Sensor In F01/F02
G06925063Courtesy of BMW OF NORTH AMERICA, INC.
INDEX REFERENCE CHART

Index Explanation
1 Fixed bearing
2 Connector
3 Screw for horizontal adjustment
4 Housing/radome
5 Screw for vertical adjustment
6 Bracket
NOTE: In the F01/F02, the long-range radar sensor is fitted with the connector at the top. It should therefore be noted that the adjustment screws have had to be relocated.
NOTE: Adjusting the long-range radar sensor on vehicles with Integral Active Steering: Before the adjustment device is set up and the actual adjustment work can begin, it is necessary to bring the actuator for the rear-wheel steering to the straight-ahead position. It is essential that the instructions of the diagnostic system and Repair Instructions be observed.