Remove/install power steering pump - AR46.30-P-0500SYA

MODEL 221.176 except CODE (Z07) Top protection without electrohydraulic power steering (EHPS) 

MODEL 221.179, 216.376/379 without electrohydraulic power steering (EHPS) 

Fig 1: Identifying Power Steering Pump Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Notes on Active Body Control suspension		AH32.50-P-0001-01N
1	Remove poly-V belt		AR13.20-P-0001SZ
2	Remove left-hand air filter housing		AR09.10-P-1150LA
3	Remove expansion reservoir (1, 2)	Power steering expansion reservoir (1)	AR46.25-P-1000SY
		ABC expansion reservoir (2)	AR32.50-P-0022SX
4	Detach bracket from ABC expansion reservoir (2)
5	Disconnect electrical connectors from refrigerant compressor and intake throttle valve (Y86/1)
6	Remove bolts from refrigerant compressor and place refrigerant compressor to one side with lines still connected	Secure the refrigerant compressor to prevent it from falling down and make sure that no cables or lines are damaged.
7	Remove bolt securing bracket (4) to tandem pump (5) and take off ground strap	Do not unscrew the bolt securing the bracket to the engine block.
		Model 221	*BA46.30-P-1009-01N
		Model 216	*BA46.30-P-1005-01Q
8	Detach bracket (9, 10) of ABC pressure line (11) from cylinder head and ignition module
9	Detach pressure line (6) from tandem pump (5)	Counterhold the front connector (7) using a wrench.
		Model 221	*BA46.30-P-1005-01N
		Model 216	*BA46.30-P-1009-01Q
10	Detach clamp (8) securing power steering pressure line (6) to tandem pump (5)
11	Detach ABC pressure line (11) from tandem pump (5)
12	Remove bolts (12) and lift out tandem pump (5)	Pay attention to the electrical line from the refrigerant compressor.
		Model 221	*BA46.30-P-1004-01N
		Model 216	*BA46.30-P-1001-01Q
13	Install in the reverse order