Preliminary work: 13

Preparation for Test 1. Ignition: OFF CAUTION! Brake fluid level must be > "Min". Never use a pressure tester for hydraulic systems instead of a pressure tester for brake fluid systems. Mineral oil mixing with brake fluid will result in brake failure. 2. Disconnect the hydraulic line "PA" from the hydraulic unit (A7/3) and connect pressure tester to the disconnected line (Figure 1). 3. Disconnect connector from ABS/ASR control module (N30/1). 4. Connect socket box with test cable (098) as per connection diagram (Figure 2). 5. Upon completion of the test procedure, first bleed off ASR hydaulics (see SMS, Repair Instructions, Job no. 42-0010), then assure proper brake fluid level in the brake fluid reservoir.

Equipment

Brake bleeder 1)	Ammco model 7301 with adaptor no. 7309
Connector M12x1	MB part no. 123 327 00 88

1) Available through the MBUSA Standard Equipment Program.