Remove/install refrigerant compressor - AR83.55-P-5300SMG

ENGINES 156 in MODEL 216, 221 

Fig 1: Identifying Refrigerant Compressor Remove/Install Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Refrigerant Compressor Remove/Install Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	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 explosion  caused by welding or soldering work on closed air conditioning system. Risk of poisoning  caused by inhaling overheated refrigerant vapors. Risk of injury  to skin and eyes caused by contact with liquid refrigerant.	Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been drained.	AS83.00-Z-0001-01A
	Procedure for a damaged or leaky air conditioning system	All models	AH83.30-N-0004-01A
	Protect air conditioning circuit and components from moisture when carrying out repair work	All models with air conditioning	AH83.30-N-0005-01A
	Notes on handling R134a refrigerant	Air conditioning with refrigerant R134a	AH83.30-N-0003-01A
1	Turn key in ignition switch to position "0".	On vehicles with code 889, Keyless Go: Press Keyless Go start/stop button repeatedly until ignition is switched off.
2	Open engine hood
3	Drain air conditioning system		AR83.30-P-1760SX
		Air conditioner service unit R134a
4	Remove both intake air ducts
5	Remove front engine cover	Do not tilt front engine cover, but lift upwards vertically otherwise the retaining lugs can break off.
6	Attach engine hoist		AR33.10-P-0100SX
7	Remove bolts of engine mounts and lift engine	Model 216	*BA22.10-P-1001-03C
		Model 221	*BA22.10-P-1001-03D
8	Remove electric fan		AR20.40-P-5000SMG
9	Remove poly-V belt		AR13.22-P-1202SMG
10	Raise vehicle with vehicle lift		AR00.60-P-1000SX
11	Remove engine compartment paneling	Install engine compartment paneling only after engine test run.	AR61.20-P-1105SX
12	Disconnect refrigerant compressor connector (A9x1)
13	Remove bolt (1)		*BA83.55-P-1003-01T
14	Detach refrigerant-pressure line (2) and remove from working area	Replace sealing rings of refrigerant pressure line (2) and moisten with refrigerant compressor oil.
15	Remove bolt (3)		*BA83.55-P-1003-01T
16	Detach refrigerant-suction line (4) and remove from working area	Replace sealing rings of refrigerant suction line (4) and moisten with refrigerant compressor oil.
17	Seal openings of refrigerant-pressure line (2) and refrigerant-suction line (4) using suitable sealing caps and stop plugs	The openings of the refrigerant-pressure line (2) and refrigerant-suction line (4) must be sealed, as otherwise any penetrating dirt and moisture can damage components connected to the refrigerant circuit.
18	Drain and collect engine oil
	Engine oil and filter change		AP18.00-P-0101SMG
19	Remove double clamp (6)
20	Remove bolt (7) from engine oil line flange connection (8)
21	Disconnect engine oil line flange connection (8)	Collect engine oil in reservoir.
		Set of plugs	Figure
22	Remove bolts (5)		*BA83.55-P-1001-01T
23	Remove refrigerant compressor (A9)	Place refrigerant-pressure line (2) and refrigerant-suction line (4) to one side. Remove refrigerant compressor (A9) downwards
24	Install in the reverse order
25	Check engine oil level and adjust correctly
	Engine oil and filter change		AP18.00-P-0101SMG
26	Refill air conditioning system and inspect for leaks and proper operation.		AR83.30-P-1760SX
		Air conditioner service unit R134a
	Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the engine as it is running	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
27	Do an engine test run and check for leaks

REFRIGERANT COMPRESSOR

Number	Designation		Engine 156 in model 204, 209, 211, 212, 216, 219, 221, 230
BA83.55-P-1001-01T	Bolt, refrigerant compressor to timing case/crankcase/and/or engine support	Nm	20
BA83.55-P-1003-01T	Screw/bolt, refrigerant lines to refrigerant compressor	Nm	20

ENGINE SUSPENSION, ENGINE MOUNTS, ENGINE SUPPORTS

Number	Designation		Model 221.02/05/07/095/12/15/17/195
BA22.10-P-1001-03D	Bolt, front engine mount to front axle carrier	Nm	35

ENGINE SUSPENSION, ENGINE MOUNTS, ENGINE SUPPORTS

Number	Designation		Model 216.371/373/374/376/377/379
BA22.10-P-1001-03C	Bolt, front engine mount to front axle carrier	Nm	35

Fig 3: Identifying Set Of Stop Plugs (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA