Check brake lining thickness - AP42.10-P-4253A

MODEL 126. 164, 166, 169, 171, 172, 201, 204, 207, 209, 211, 212, 216, 218, 219, 221, 230, 240, 245, 246, 251

Fig 1: Identifying Measurement Points On Front Axle

Courtesy of MERCEDES-BENZ USA

Fig 2: Measuring Brake Pads Thickness

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Bulb

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	Checking
	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
	Risk of injury to skin and eyes caused by handling hot or glowing objects.	Wear safety gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Notes on repairs to brake system	Model 212, 218 with code (B07) Ceramic brake system	AH42.00-P-0003-01RQ
	Notes on repairs to brake system		AH42.00-P-0003-01A
1	Check lining thickness (1) of brake pads	If necessary, use lamp (011) or mirror (012). If access is impeded by the mounted wheels, the measurement can be made on the inner brake pad. For model 164, 166, 169, 172, 204, 207, 209, 212, 218, 230, 245, 251, model 216 (except 216.374/377/379), model 221 (except 221.074/077/174/177/179):
		Measure thickness of brake pads.	AP42.10-P-4253-01GZ
		Gauge adapter, for model 164, 166, 251	Fig 4
		Brake pad gage	Fig 5
2	Remove stop plugs from check bores and check lining thickness (1) of brake shoes	Vehicles with drum brakes. Use torch (011) if necessary.
3	Install stop plugs for check bores	Vehicles with drum brakes.
4	Determine estimated remaining service distance of brake linings and agree on immediate or later replacement of brake pads/shoes with customer	If the check shows that the brake lining wear limit will be reached before the next service. LLI Expected remaining distance, take into account the driving style of the customer and conditions of use of the vehicle so that brake pads do not wear out before the next maintenance service	AP42.10-P-4253-02A
Only if required.↓
5	Replace brake pads or brake shoes	Model 216, 221	AR42.10-P-0160SX
Model 216, 221 Replacing and installing brake pads	AR42.10-P-0161SX

Fig 4: Identifying Gauge Adapter (164 589 10 23 00)

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Fig 5: Identifying Brake Pad Check Gauge (211 589 06 23 00)

Courtesy of MERCEDES-BENZ USA