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Home >> BMW >> 2013 >> M3 2D Convertible, Automatic DCT Trans >> Repair and Diagnosis >> General Information >> OEM General Information >> Functional Description -- M3 Convertible >> Cruise Control - Functional Description >> Cruise Control With Braking Function (LDM) >> LDM control unit
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LDM control unit

With optional equipment 544 (up to 09/06) and optional equipment 541 in the E90/E91/E92, the scope of functions of the software for cruise control is implemented in a separate control unit: the LDM control unit.

As of 09/06 or on the E92 with the series launch (06/06), the cruise control with braking function (optional extra 544) is integrated in the DSC control unit. The LDM control unit is therefore eliminated on optional extra 544 as of 09/06. A precondition for the function is that the engine/transmission control and the DSC are operating without faults.

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