Brake Test - AP42.00-P-4290BA

Model 117, 118, 124, 129, 140, 156, 163, 164, 166, 167, 168, 169, 170, 171, 172, 176, 177, 190, 197, 199, 202, 203, 204, 205, 207, 208, 209, 210, 211, 212, 213, 215, 216, 217, 218, 219, 220, 221, 222, 230, 231, 238, 240, 242, 245 (except 245.286), 246, 247, 251, 253, 257, 290, 292, 293 

Model 463 as of model year 2019 

	Risk of accident  from vehicle starting off by itself when engine running.Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
	Risk of burn injuries  , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.	Wear protective clothing and safety glasses. Use the extraction system. Move people out of the danger zone.	AS49.00-Z-0001-01A
	Preparatory activity
1.1	Set hydraulic valve or electrical selection switch in engine compartment to "TEST" position.	Model 124.226/230/290/330/333/393 Ignition is switched off.
1.2	Switch on dynamometer test using steering wheel buttons.	Model 197
		Model 197.3/4 Do not switch off ESP® using the ESP® Sport OFF button on the center console. Otherwise, an active intervention by the ESP® brake system may lead to measurement errors.	AR54.30-P-1000-02QQ
2	Change gear ratio from "HIGH RANGE" to "LOW RANGE".	Model 164, 166 with code 430 (Offroad package) Model 463 as of model year 2019 with code ZB4 (Off-Road package) If "HIGH RANGE" is switched on. To do so, press "LOW RANGE" button on lower control panel and drive 20 to 50 m in order to shift from the "HIGH RANGE" on-road ratio to the "LOW RANGE" step-down ratio. If the "Sport" drive program is activated, it is not possible to shift to the "LOW RANGE" step-down ratio.
	Brake test on roller brake test stand
	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
3	Move vehicle with front axle onto roller brake test stand.
	000 588 32 21 00 Roller brake test stand		WS42.00-P-0006B
4	Shift transmission to idle position "N".
5	Determine and document the braking characteristics and brake values of the front axle.	On all-wheel drive vehicles, the speed of the roller brake test stand rollers must be max. 5 km/h and may not last longer than 15 s per test of one axle. Between the tests, a waiting period of at least 15 s must be observed, during which the axle may not be driven by the roller brake test stand rollers. The drive train and brake system can otherwise be damaged. Press brake pedal uniformly. Document maximum values before wheels lock.
6	Move transmission to selector lever position "D".	The rollers of the roller brake test stand must be at a standstill.
7	Move rear axle of vehicle into roller brake test stand.
	000 588 32 21 00 Roller brake test stand		WS42.00-P-0006B
8	Move transmission to selector lever position idle "N".
9	Determine and document braking characteristics and brake values of rear axle.	On all-wheel drive vehicles, the speed of the roller brake test stand rollers may be max. 5 km/h and may not last for more than 15 s per test of one axle. Between the tests, a waiting period of at least 15 s must be observed, during which the axle may not be driven by the roller brake test stand rollers. The drive train and brake system can otherwise be damaged. Press brake pedal uniformly. Document maximum values before wheels lock.
10.1	Determine and document braking response, brake values and actuating travel of parking brake.	Vehicles with mechanically actuated parking brake. Operate parking brake uniformly. Document the number of notches and the maximum values prior to the wheels locking up.
10.2	Determine and document braking characteristics and brake values for electric parking brake.	Model 197, 216, 221 Vehicles with electrically-operated parking brake. On all-wheel drive vehicles, the speed of the roller brake test stand rollers must be max. 5 km/h and may not last longer than 15 s per test of one axle. Between the tests, a waiting period of at least 15 s must be observed, during which the axle may not be driven by the roller brake test stand rollers. Before operating the electric parking brake, the rear-axle complete wheels must be driven by the roller brake test stand until the vehicle has detected the roller brake test stand so that application of the brake pads is then slowed down. Otherwise damage may occur. Briefly press switch of electric parking brake once, do not press and hold. Otherwise damage will occur. Document maximum values before wheels lock.
10.3	Determine and document braking characteristics and brake values for electric parking brake.	Model 117, 118, 156, 166, 167, 172, 176, 177, 190, 205, 213, 217, 222, 231, 238, 242, 246, 247, 253, 257, 290, 292, 293 Model 463 as of model year 2019 Vehicles with electrically-operated parking brake. On an all-wheel drive vehicle, the speed of the roller brake test stand rollers must be max. 5 km/h and may not last longer than 15 s per test of one axle. Between the tests, a waiting period of at least 15 s must be observed, during which the axle may not be driven by the roller brake test stand rollers. Before operating the electric parking brake, the rear-axle complete wheels must be driven by the roller brake test stand until the vehicle has detected the roller brake test stand so that application of the brake pads is then slowed down. Otherwise damage may occur. The electric parking brake brakes briefly and then changes to the roller brake test stand mode. After 3 s press the switch of the electric parking brake again briefly, the electric parking brake brakes with greater brake power. If necessary, after 3 s briefly press the switch of the electric parking brake a 3rd and a 4th time until the wheels lock up. Document maximum values before wheels lock.
11	Release parking brake and drive vehicle out of roller brake test stand.	The rollers of the roller brake test stand must be at a standstill.
	000 588 32 21 00 Roller brake test stand		WS42.00-P-0116B
	Evaluation of brake test
	Notes on the evaluating and interpreting brake tests on test stands		AH42.00-D-0004-01KOS
12	Evaluate braking characteristics and documented brake values of service brake.	If there are brake value fluctuations or a pulsating brake pedal or if the difference in the braking effect of the service brake at the wheels of one axle is more than 25 % of the highest value, ↓ determine cause and correct. After obtaining special order. If locking limit is not reached, ↓ check whether the brake values still comply with the legal regulations. After obtaining special order. The stated deviation applies for the Federal Republic of Germany; differently phrased country-specific regulations must be observed accordingly. If the brake values do not meet legal requirements, ↓ determine cause and correct. After obtaining special order.
13.1	Evaluate braking characteristics and documented brake values of parking brake.	Vehicles with mechanically actuated parking brake. If there are brake value fluctuations, pulsating operation or if the difference in the braking effect of the parking brake at the wheels of one axle is more than 50 % of the highest value, ↓ Bed in the parking brake as per the specification.
		Model 124, 129, 140, 163, 164, 168, 169, 170, 171, 202, 203, 204, 207, 208, 209, 210, 211, 212, 215, 218, 219, 220, 230, 240, 245 (except 245.286), 251	AP42.20-P-4290-01BA
		After obtaining special order. MODEL 129 with duo servo brake Number of notches at which the parking brake must be adjusted if up to that point there is insufficient braking effect	*BE42.20-P-1005-01A
		Model 124, 140, 163, 164, 202, 203, 204, 207, 208, 209, 210, 211, 212, 215, 218, 219, 220, 230, 240, 251	*BE42.20-P-1001-02A
		Number of notches by which the foot-operated parking brake has to be adjusted, if until then there is no adequate braking effect Model 168, 169, 170, 171, 245 (except 245.286) Number of notches by which the hand brake has to be adjusted, if until then there is no adequate braking effect ↓ Repeat brake test on roller brake test stand. After obtaining special order. If the problem persists during the repeated roller brake test stand ↓ determine cause and correct. After obtaining special order. If locking limit is not reached, ↓ check whether the brake values still comply with the legal regulations. After obtaining special order. The stated deviation applies for the Federal Republic of Germany; differently phrased country-specific regulations must be observed accordingly. If the brake values do not meet legal requirements, ↓ determine cause and correct. After obtaining special order.
13.2	Evaluate braking characteristics and documented brake values of parking brake.	Model 197, 216, 221 Vehicles with electrically-operated parking brake. If there are brake value fluctuations, pulsating operation or if the difference in the braking effect of the parking brake at the wheels of one axle is more than 50 % of the highest value, ↓ Condition parking brake as per the specifications.
		Model 216 Model 221.0/1	AR42.20-P-0530-02SX
		Model 197	AR42.20-P-0530-02RQ
		After obtaining special order. Repeat brake test on roller brake test stand. If the problem persists during the repeated roller brake test stand ↓ determine cause and correct. After obtaining special order. If locking limit is not reached, ↓ check whether the brake values still comply with the legal regulations. After obtaining special order. The stated deviation applies for the Federal Republic of Germany; differently phrased country-specific regulations must be observed accordingly. If the brake values do not meet legal requirements, ↓ determine cause and correct. After obtaining special order.
13.3	Evaluate braking characteristics and documented brake values of parking brake.	Model 117, 118, 156, 166, 167, 172, 176, 177, 190, 205, 213, 217, 222, 231, 238, 242, 246, 247, 253, 257, 290, 292, 293 Model 463 as of model year 2019 Vehicles with electrically-operated parking brake. If there are brake value fluctuations, pulsating operation or if the difference in the braking effect of the parking brake at the wheels of one axle is more than 50 % of the highest value, ↓ determine cause and correct. After obtaining special order. If locking limit is not reached, ↓ Check whether the brake values still comply with the legal regulations. After obtaining special order. The stated deviation applies for the Federal Republic of Germany; differently phrased country-specific regulations must be observed accordingly. If the brake values do not meet legal requirements, ↓ determine cause and correct. After obtaining special order.
	Finishing activity
14	Reset switch positions to input condition.