Dynamic Stability Control Mk60 and Mk60E5

The DSC Mk60 is fitted on vehicles with 4-cylinder engines.

The DSC Mk60E5 is fitted on vehicles with 6-cylinder engines.

A variant of the DSC Mk60E5 is fitted in the E60 M5. This variant is adapted to the M5 / M6.

Functional descriptions, see BMW Service Technology:

TIS -> Document -> SI Technology -> Enter SBT Number

SBT number: 34 01 04 107 (DSC Mk60E5)

SBT number: 34 01 03 017 (DSC Mk60)

 

Sequence for replacement of the DSC unit or DSC control unit
(DSC MK60 and DSC MK605E)

 

After replacement of the DSC unit or of the DSC control unit, the following work is to be performed in the following order:

  1. Coding DSC
    On code the DSC, vehicle-specific data records are selected (e.g. size of the brakes). At the same time, the data for coding for the steering column switching centre is stored and transferred across the F-CAN to the SZL (not on the M5/M6). This means that if the SZL is replaced the DSC control unit also has to be coded. Without successful coding, no calibration of the steering-angle sensor is possible.
    Even if there are faults in the DSC, coding is normally possible.
  2. Calibration of steering-angle sensor
    The zero point of the steering-angle sensor, the vehicle identification number and the serial number of the SZL are stored.
  3. Calibration of DSC unit

    MK60: The internal brake pressure sensor is calibrated.
    MK60 E5: The internal pressure sensors and the valves (characteristic curve for the flow volume) are calibrated. The internal longitudinal acceleration sensor (not M5/M6) is calibrated.
    In the event of faults that affect the valves or pressure sensors, the calibration might not be possible.
  4. Venting routine for DSC unit
  5. Check for swapped brake lines
  6. Initialise Run Flat Indicator (see owner's manual)

Replacement of DSC sensor

After replacement of the DSC sensor, the service function ”Calibration DSC sensor” must be run. The transverse acceleration sensor or transverse acceleration sensors are calibrated in the DSC sensor.

Replacement of steering-angle sensor

The steering-angle sensor forms a unit with the steering column switching centre. It cannot be replaced alone. The service function ”Calibration steering-angle sensor” or in the case of vehicles with active steering the service function ”Commissioning/Adjustment active steering” must be run after the following work:

General notes on DSC MK60

An internal brake pressure sensor replaces the two brake pressure sensors on the main brake cylinder. This brake pressure sensor cannot be replaced separately.

The hardware and software of the control unit have been adapted to the vehicle circuit structure.

 

General notes on DSC MK60 and DSC MK60E5

The software of the control unit can be updated when required by authorised dealerships in compliance with strict security and procedure rules.

For Condition Based Service, the brake lining wear is determined by the DSC control unit. The brake pad wear sensor are therefore designed in two stages. One sensor per axle.
On the M5 and M6, two sensors are fitted for the front axle and one sensor is fitted for the rear axle.

Faults in the steering column switching centre (SZL) are sent across the F-CAN to the DSC and stored in the DSC control unit.
As of 12/04, when coding the DSC the coding data for the SZL is transferred across the F-CAN. The SZL is coded in this way.

The control unit functions for the SZL can be called up via the DSC control unit.

 

General notes on DSC MK60E5

The DSC unit contains 5 internal pressure sensors and valve with variable characteristic curves for the flow volume: so-called ”analogised” solenoid valves. The characteristic curves for the flow volume must be learned (calibrated).

A longitudinal acceleration sensor is integrated on the board of the control unit (not M5 and M6).

M5 and M6: the longitudinal acceleration signal is transferred from the gearbox via the PT CAN to the DSC.

The version of the DSC sensor for vehicles with active steering delivers redundant signals (2 for yaw rate, 2 for lateral acceleration).

The control unit has been completely revised and contains new functions:

Note on M5 / M6:

The E60 M5 has a steering column switching centre with its own diagnosis address. The fault code memory entries and control unit functions for the SZL are therefore evaluated directly in the SZL and not in the DSC (same as E60). This means that after replacement of the SZL no coding of the DSC is required.