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Home >> Mercedes Benz >> 1994 >> C220 >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Brakes - 140 Chassis) >> Testing & Repair >> Bleed brake system - AR42.10-P-0010A >> Actuation of brake master cylinder switchover valve - AR42.10-P-0010-01A

Actuation of brake master cylinder switchover valve - AR42.10-P-0010-01A

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REFER TO SHOP-MADE TOOLS Wiring harness for actuation of switchover valve Model 129.067 with ESP, models 129.076, 140.04/05/06/07 WF58.50-P-4210-01A
Fig 1: Identifying Electrical Connecting Set (201 589 00 99 00)
G04685676Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  1. Disconnect coupling (d) at brake master cylinder switchover valve (Y61).
  2. Actuate brake master cylinder switchover valve (Y61):

    Model 129.067 with ESP, 129.076 flat plug to fuse C in fuse and relay box F1 and round plug to ground, ABS hydraulic unit bracket W14. Connect the 2-pin coupling to the brake master cylinder switchover valve (Y61).

    On models 140.04/05/06/07, connect the flat plug to the input of fuse 28 in the fuse and relay box F1 (Fuse 28 removed) and the round plug to ground, hydraulic unit bracket W14. Connect the 2-pin coupling to the brake master cylinder switchover valve (Y61).

    IMPORTANT The switchover valve (Y61) must be open so that the annular duct in the brake master cylinder is bled.

    Fig 2: Identifying Master Cylinder Switchover Valve
    G04685677Courtesy of MERCEDES-BENZ OF NORTH AMERICA.