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How to enable Mercedes Benz rain sensing wipers with MB Star


Mercedes Benz MB Star diagnostic multiplexer (take WIFI MB SD Connect C4 for example)
Dell D630 laptop running Windows XP O/S

Instruction in Star DAS Developer Mode:

Install and activate MB SD Connect multiplexer software. Software is pre-installed and activated if you get the MB SD C4 and Dell D630 laptop bundle package.
Connect MB SD Connect C4 multiplexer with vehicle via OBD socket
Run Star DAS diagnostic software
Select vehicle model

Select Control units in main function menu->F3
Select Body->F3
Select OCP->F3
Select Control unit adaptations->F3
Select Light sensor->F3
Select Parameterization and windshield adaption->F3
Press F2 to accept the software type message
Change Windshield Version (Transmission Value) to the one that matches your Mercedes Benz - the last four digits of the object number are found on the windshield underneath the windshield stamp barcode

Codes are as follows:

Light and rain sensor
A 171 820 15 26 (code setting 28)
A 171 820 37 26 (code setting 30)
A 171 820 39 26 (code setting 32)
A 171 820 54 26 (code setting 53)

Light sensor only
A 171 820 30 26 (code setting 28)
A 171 820 38 26 (code setting 30)
A 171 820 40 26 (code setting 32)

F3 to accept the changes, followed by F3 (Yes) to transfer the coding to the control unit. Press F2 to go back to the OCP section, and then click F1 back to Control unit menu.

Select Body
Select CGW
Select Control unit adaptations
Select Read coding and change if necessary
Select All codes
Change Rain Sensor status to PRESENT

Mercedes Benz rain sensing wipers has been activated successfully.
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