Remove/install fan unit - AR20.40-P-5050CW

ENGINES 156, 271, 272, 276, 642, 646, 651 in MODEL 204 

ENGINES 271, 272, 273, 276, 278, 642, 651 in MODEL 207 

Shows model 204.041 

Fig 1: Identifying Fan Unit Remove/Install Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Shows model 204.041 

Fig 2: Identifying Fan Unit Remove/Install Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Open engine hood and raise to vertical position	Model 204 Model 207	AR88.40-P-1000EW
2.1	Remove engine air intake duct (2)	Engines 271.9, 646, 651
2.2	Remove air guide between air filter housing and turbocharger	Engine 271.8
2.3	Remove front engine cover and engine intake air ducts upstream of air filter housing	Engines 156, 272, 273, 276
2.4	Remove engine cover and engine intake air ducts upstream of air filter housing	Engine 642 Installation  : Ignition switched off.
3	Remove cold air intake (1)	Pull unlocking catch (16) (arrow A) and press unlocking catch (15) (arrow A). Model 204.9: Unclip rubber seal in the area of middle reinforcement (6) and set aside.
4	Remove radiator grille	Model 204 with engine 156	AR88.40-P-4001CW
5	Remove covers (3) for lamp units	Except model 207 with engine 272, 642 Only if fitted.
6	Remove holder (4) to radiator	Except model 207 with engine 272, 642
7	Remove bolts (5, 7, 8) and remove middle reinforcement (6)	Except model 207 with engine 272, 642	*BA62.30-P-1003-02G
			*BA62.30-P-1004-02G
8	Unclip retaining lug (12) for upper air ducting (11) from fan unit (10)
9	Remove engine compartment paneling	Model series 204 with series 156 engine, model series 207 with series 278 engine	AR61.20-P-1105EW
10	Disconnect electrical connector (9) on fan unit (10)
11	Unclip electrical wiring harness on fan unit (10) and place to one side	Installation:  Install new cable ties.
12	Detach vacuum hose from the radiator shutters adjuster	Only if fitted.
13	Disconnect electrical connector at the radiator shutters adjuster	Only if fitted.
14	Remove coolant line holder from the front cover on left cylinder head	Model 207 with engine 273
15	Press unlocking fishplates (14) apart (arrows) and unclip lower air ductings (13) on the left and right from the fan unit (10)
16	Remove bolt for transmission oil cooling lines to fan unit (10)	Vehicles with automatic transmission
17	Unhook fan unit (10) from radiator mount and pull out upwards
18	Install in the reverse order