Brake testing on test stand - AP42.00-P-4290BA

MODEL 124, 129, 140, 170, 202, 203, 208, 209, 210, 215, 220 

Selection switch in engine compartment on vehicles with 4MATIC (model 124) 

Fig 1: Brake Testing On Test Stand

	Check
1	Check lining thickness on parking brake linings
2.1	Engage parking brake lever by pulling up 3 notches	Model 170 only
2.2	Press parking brake pedal 5 notches	Applies only to model 124, 210 right-hand drive vehicles Applies only to model 129,140, 202 up to 31.8.95 Applies only to model 215.379, 220.179
2.3	Press parking brake pedal 10 notches	Applies only to model 129, 140, 202, 210 lefthand drive vehicles as of 31.9.95 Applies only to model 203, 208, 209, 215, 220 except 215.379, 220.179
3.1	Readjust parking brake	If braking effect is uneven or insufficient.
		Model 124	ra42001240540x
	Adjust parking brake	Model 129, 170, 202, 203, 208, 209, 210 Model 140 as of 1.11.93	AR42.20-P-0540A
		Model 215, 220 except 215.379, 220.179	AR42.20-P-0540I
		Model 215.179, 220.379	AR42.20-P-0540IM
4	Place electric selection switch in engine compartment in position "TEST"	Only with model 124 with 4MATIC
5	Switch off ignition	Only if ignition is switched on and only with rear axle with automatic locking differential (ASD) code 211a.
6	Measure deceleration values of parking brake on test stand.	Permissible deviation from the higher value: maximum 50 %. If the braking effect of the parking brake is uneven or insufficient: ↓
		Bed in parking brake according to instructions.	AP42.20-P-4290-01BA
7	Measure deceleration values of service brake on test stand.	Permissible deviation from the higher value: maximum 25 %. The indicator lamps for ABS, ETS, ASR, ESP, SBC may light up in response to an implausible combination of rpm signals from the different rotational speeds at front axle and rear axle, if the brake test stand is operated at > 5 km/h.
8	Read fault memory and erase if necessary	If one or several indicator lamps for ABS, ETS, ASR, ESP, SBC with the engine running following the test on the brake stand.
	Connect diagnosis testing equipment	Model 124, 129, 140, 170, 202, 203, 208, 209, 210, 220, 215.374	AD00.00-P-2003A