Test Brake System With Pressure Tester For Leaks - AR42.10-P-0015S

Model 223, 294, 295, 296, 297 

Shown on model 223 except code 200 (Conditionally automated driving) and except code 503 (Remote-controlled parking) 

Courtesy of MERCEDES-BENZ USA

	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 poisoning  from swallowing brake fluid. Risk of injury  from skin and eye contact with brake fluid	Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.	AS42.50-Z-0001-01A
Notice	Notes on externally invisible brake fluid loss		AH42.10-P-9406-02A
Notice	Notes on repairs to brake system		AH42.00-P-0003-01A
Notice	Notes on handling, transport and storage of ceramic brake disks		AH42.10-P-9406-13A
Notice	Notes on handling, transport and storage of composite brake disks		AH42.10-P-9406-12LF
Notice	Brake fluid notes		AH42.50-P-0001-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Check
1	Open hood.	Model 223, 294, 295, 296, 297
		Model 294, 295, 296, 297	AR88.40-P-1000EQS
2	Remove cover over brake fluid reservoir (1).
3	Clean area around cap of brake fluid reservoir (1).	Assembly cleaner	*BR00.45-Z-1028-04A
4	Detach cap of brake fluid reservoir (1).
5	Connect filling unit at brake fluid reservoir (1).
	000 588 16 82 00 Filling unit		WS25 00-P-0038B
	Brake fluids (DOT 4 plus)		BB00 40-P-0331-00A
	General brake fluid		BB00.40-P-0330-01A
		Observe manufacturer's operating instructions.
6	Remove left front wheel.		AR40.10-P-1102A
7	Remove bleed screw from left front brake caliper (2) and connect test equipment (3).
	000 588 28 21 00 Test equipment	Do not use test equipment (3) for hydraulic oil systems on systems with brake fluid. Otherwise, the brake fluid will be mixed with mineral oil, which can cause brake failure.	WS42.00-P-0115B
8	Bleed test equipment (3).	Observe manufacturer's operating instructions.
9	Start engine and run.
10	Depress brake pedal and insert brake pedal jack (4) with adapter between brake pedal and driver's seat.	Cover brake pedal and driver's seat in contact area of brake pedal jack (4) and adapter. Brake pedal jack	Fig 1
		Adapter for brake pedal winch	Fig 2
11	Read off and note brake pressure on high-pressure manometer of test equipment (3).
12	Read off brake pressure again on high-pressure manometer of test equipment (3) after the specified test period and compare against previously-noted value.	Check values for leak test If there is a problem, ↓ determine cause and repair brake system.	*BE42.10-P-1001-19A
13	Switch off engine and remove brake pedal jack (4) with adapter.
14	Reduce vacuum in brake booster by depressing brake pedal several times.
15	Depress brake pedal and insert brake pedal jack (4) with adapter between brake pedal and driver's seat.	Cover brake pedal and driver's seat in contact area of brake pedal jack (4) and adapter. Brake pedal jack	Fig 1
		Adapter for brake pedal winch	Fig 2
16	Slowly turn back brake pedal jack (4) until the low-pressure manometer of the test equipment (3) displays the specified brake pressure.	Check values for leak test	*BE42.10-P-1001-19A
17	Read off brake pressure on low-pressure manometer of test equipment (3) after the specified test period.	Check values for leak test If there is a problem, ↓ determine cause and repair brake system.	*BE42.10-P-1001-19A
18	Remove cover on brake pedal, on driver's seat and on brake pedal jack (4) with adapter.
19	Disconnect test equipment (3) from brake caliper (2) and screw bleed screw all the way into brake caliper (2).
20	Bleed front left brake caliper (2).		AR42.10-P-0010-02FR
	000 588 16 82 00 Filling unit		WS25.00-P-0038B
		Model 223 (except 223.182) except code Z07 (B7 armoring on special protection version) Model 223 (except 223.182) with code Z07 (B7 armoring on special protection version) Model 223.182
		Bleed screw on brake caliper	*BA42.10-P-1002-10CA
		Model 294, 295, 296, 297 Bleed screw at brake caliper	*BA42.10-P-1002-10EA
21	Attach left front wheel.		AR40.10-P-1102A
22	Disconnect filling unit from brake fluid reservoir (1).
23	Correct fluid level in brake fluid reservoir (1).
		Model 223	AP42.10-P-4210G
		Model 294, 295, 296, 297	AP42.10-P-4210ES
24	Seal brake fluid reservoir (1) with cap.
25	Install cover over brake fluid reservoir (1).
26	Close hood.	Model 223, 294, 295, 296, 297
	Model 294, 295, 296, 297		AR88.40-P-1000EQS

Fig 1: Identifying Brake Pedal Jack (000 589 18 31 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Adapter For Brake Pedal Winch (211 589 00 31 00)

Courtesy of MERCEDES-BENZ USA