Adjust Parking Brake On Roller Dynamometer - AR42.20-P-0550GWX

Model 463.234 

up to model year 2019 

with code ZQ0 (G 500 4x42) 

Model 463.255 

up to model year 2019 

with code MUK2 (USA or Canada vehicle model designation) 

with code ZQ0 (G 500 4x4 ²  ) 

Model 463.274 

up to model year 2019 

with code LQ0 (G650 Landaulet) 

Courtesy of MERCEDES-BENZ USA

	Risk of death  caused by limbs being caught or crushed by rotating parts when performing tests on the brake test stand	Never leave the vehicle unattended on the rollers except in an emergency. Ensure that no one is under the vehicle or near rotating parts during testing. In case of emergency, use the EMERGENCY OFF switch to shut down test stand.	AS42.00-Z-0001-01A
	Information on function and performance test on roller dynamometer		AH00.10-P-1000-03A
	Check
1	Check brake lining thickness
			AP42.10-P-4252G
		Brake pad wear limit, disk brake If the minimum lining thickness is reached or fallen below. ↓ replace brake linings.	*BE42.10-P-1001-10A
			AR42.10-P-1710GWX
2	Remove cover (2) from parking brake lever	Model 463.234 as of model year 2013 up to model year 2019 with code ZQ0 (G 500 4x42) Model 463.255 as of model year 2013 up to model year 2019 with code MUK2 (USA or Canada vehicle model designation) with code ZQ0 (G 500 4x42) Model 463.274 as of model year 2013 up to model year 2019 with code LQ0 (G650 Landaulet)	AR68.20-P-2311-01GW
3	Move brake lining with service brake up to disk
4	Operate parking brake several times	To remove tolerance from brake cables of parking brake.
	Adjust
5	Preset brake cables of parking brake using adjusting nuts (10)	The lever on the brake caliper must be in the end position when the parking brake is disengaged.
6	Drive the vehicle on to the brake test stand and switch on the brake test stand
7	Adjust brake cables of parking brake using adjusting nuts (10) on roller
	Check
8	Check brake force	Model 463.234 up to model year 2019 with code ZQ0 (G 500 4x42) Model 463.255 up to model year 2019 with code MUK2 (USA or Canada vehicle model designation) with code ZQ0 (G 500 4x42 ) Model 463.274 up to model year 2019 with code LQ0 (G650 Landaulet)
		Model 463.234 up to model year 2019 with code ZQ0 (G 500 4x42) Test value for parking brake, parking brake lever 1st notch In event of brake force problems ↓ Adjust brake force by turning adjusting nuts (10)	*BE42.20-P-1002-01B
9	Tighten and undo parking brake lever three times in succession	After releasing the parking brake lever the parking brake must have unobstructed movement, and the lever on the brake caliper must be in the end position when the parking brake is disengaged.
10	Slowly apply parking brake lever fully	The brake force must increase uniformly. If a uniform brake force cannot be achieved. ↓ replace brake linings.
		Replace brake cables of parking brake.	AR42.10-P-1710GWX
			AR42.20-P-0003GWX
11	Switch off brake test stand
12	Install cover (2) onto parking brake lever	Model 463.234 as of model year 2013 up to model year 2019 with code ZQ0 (G 500 4x42) Model 463.255 as of model year 2013 up to model year 2019 with code MUK2 (USA or Canada vehicle model designation) with code ZQ0 (G 500 4x42) Model 463.274 as of model year 2013 up to model year 2019 with code LQ0 (G650 Landaulet)	AR68.20-P-2311-01GW