Removing and installing BAS control module - AR42.31-P-6001A

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

MODEL 129, 140 as of 1.12.96, 170, 202 as of 1.6.97, 208, 210 as of 1.2.97

Shown on model 208

Fig 1: Identifying BAS Control Module Components - Shown On Model 208

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Shown on model 210

Fig 2: Identifying BAS Control Module Components - Shown On Model 210

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Removing, installing
	Notes on brake booster		AH43.20-P-0001-01A
1	Operate brake pedal several times until vacuum in brake booster is reduced.	The diaphragm travel sensor sealing ring may be sucked into the brake booster if vacuum is present. If this happens, the brake booster must be replaced.
	On models 202, 208, 210 with ESP the BAS control module is integrated into the ESP control module
2	Detach vacuum line (8)	Only if space is cramped.
3	Unplug control module connector (16a)
4	Unplug BAS release switch / solenoid valve connector (A7/7x2)
5	Unplug BAS diaphragm travel sensor connector (A7/7x1)
6	Pull BAS control module (N48) off bracket	Installation: Ensure proper seating in the bracket. The control module must lock with an audible click The BAS control module is parameterized automatically by the engine control module after the engine is started.
7	Install in the reverse order