Assess Condition Of Brake Linings - AP42.10-P-4252MFA

Model 177

G15509886

Courtesy of MERCEDES-BENZ USA

Shown on model 221

G15509887

Courtesy of MERCEDES-BENZ USA

	Risk of injury . Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
Topical note	Notes on repairs to brake system		AH42.00-P-0003-01A
	Check
1	Assess brakepad thickness (1) of brakepads on front axle.	If necessary, use a flashlight (2) or a mirror (3). The thickness of the pad backing plate can be used as a reference when assessing the brake lining thickness (1).
		Brake lining If, in exceptional cases, assessment through visual inspection is not possible: ↓ Remove front wheels and assess them subject to separate repair order.	*BE42.10-P-1001-06F
2	Assess brakepad thickness (1) of brakepads on rear axle.	If necessary, use a flashlight (2) or a mirror (3). The thickness of the pad backing plate can be used as a reference when assessing the brake lining thickness (1).
		Brake lining If, in exceptional cases, assessment through visual inspection is not possible: ↓ Remove rear wheels and assess them. Subject to separate repair order.	*BE42.10-P-1001-18E
3	Determine expected remaining distance of brakepads.	To determine the prospective remaining distance for each axle, refer to the brakepad with the least brakepad thickness (1). In order to avoid an unscheduled workshop visit between services, determine the remaining distance of the present brakepads. If the remaining distance determined is less than the next service interval, advise the customer to replaced the brakepads before the due service date. If the wear limit for the brakepads is reached, ↓ Replace brake linings. Subject to separate repair order.	AP42.10-P-4253-03EW

CHECK VALUES FOR FRONT AXLE BRAKE LINING

Number	Designation			Model 177 (except 177.051)	Model 177.051
BE42.10-P-1001-06F	Brake lining	Brake pad, new	mm	12	10
		Pad backing plate	mm	6	6
		Wear limit	mm	2	2
		Wear indicator activated (if installed)	mm	2-3	2-3

CHECK VALUES FOR REAR AXLE BRAKEPAD

Number	Designation			Model 177
BE42.10-P-1001-18E	Brake lining	Brake pad, new	mm	11
		Pad backing plate	mm	6
		Wear limit	mm	2
		Wear indicator activated (if installed)	mm	2-3