Remove/install front engine mounts and/or engine support - AR22.10-P-1260SXH

ENGINES 272.974 in MODEL 221.095/195 

Fig 1: Identifying Front Engine Mounts And Engine Support Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
		Work on high-voltage systems or on hybrid components may only be conducted by trained workshop personnel.
		Engine mounts must be replaced in pairs.
	Risk of death  when touching components on vehicles with high-voltage on-board electrical system	Do not touch components and open lines of the high-voltage on-board electrical system. Persons who are carriers of electronic implants (e.g. cardiac pacemakers), must not  carry out any work on high-voltage on-board electrical systems.	AS54.00-Z-0001-01A
1	Perform disable for the high-voltage on-board electrical system When removing the right-hand engine support (6)		AR54.10-P-1150SXH
	Note on high-voltage on-board electrical system		AH54.00-P-0010-01A
2	Remove air filter housing		AR09.10-P-1150SX
3	Remove bottom engine compartment paneling		AR61.20-P-1105SX
4	Remove right catalytic converter	When removing the right-hand engine mount (8)	AR49.10-P-7100SX
5	Remove heat shield lower catalytic converter from bracket and transmission bell housing and remove to the rear	When removing right-hand engine mount (8)
6	Remove heat shield between exhaust manifold and power electronics and remove to the bottom rear
7	Remove coolant line between power electronics and DC/DC converter from front axle carrier	When removing right-hand engine mount (8)
8	Unclip coolant line below on the alternator bracket	When removing right-hand engine mount (8)
9	Remove screw (10)		*BA22.10-P-1001-03D
10.1	Remove vacuum line	When removing left-hand engine mount (8)	AR43.10-P-0355SXH
10.2	Remove connector on ignition coil for cylinder	1When removing right-hand engine mount (8)
11	Remove bolts (7)		Figure
		Align anti-twist lock on engine mount (8) and heat shield (9) to cutout and raised point on engine support (6).	*BA22.10-P-1002-03D
12	Attach engine hoist and raise engine	No not apply tension to or damage lines or hoses.	AR33.10-P-0105SX
13	Remove pressure line D2 for power steering from front axle carrier and rack-and-pinion steering When removing right-hand engine mount (8)		AR46.25-P-3015SXH
14	Remove right engine mount (8) downwards to the rear	Pay attention to environmental protection regulations for disposal of engine mounts (8). Dispose engine mounts (8) into mixed scrap.
15	Remove left heat shield (9) and left engine mount (8) downwards to the rear	When removing the left-hand engine mount (8) Pay attention to environmental protection regulations for disposal of engine mounts (8). Dispose engine mounts (8) into mixed scrap.
	Left engine support
16	Remove engine support (6) from crankcase by removing bolts (65)		*BA22.10-P-1001-02A
17	Remove engine crossmember (6) from below
	Right engine support
18	Remove power electronics from bracket and intermediate flange		AR08.10-P-0011SXH
19	Remove heat shield bracket (9) from engine support (6) and alternator
20	Remove alternator line set bracket from engine support (6)
21	Remove oil dipstick guide tube from engine oil pan and front cover and turn in such a way that the bolts (65) from engine support (6) are accessible
22	Remove power electronics bracket from engine support (6)
23	Remove bolts (65) and take out engine support (6) towards the bottom rear		*BA22.10-P-1001-02A
24	Install in the reverse order

ENGINE SUPPORT (ENGINE SIDE)

Number	Designation			Engine 272
BA22.10-P-1001-02A	Bolt, engine support to cylinder crankcase	Stage 1	Nm	20
		Stage 2	∠°	90

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
BA22.10-P-1002-03D	Bolt connecting front engine mount to engine support	M10		Nm	50
		M12	Stage 1	Nm	85
			Stage 2	∠°	90

Fig 2: Identifying Set Of Engine Bearing Wrenches (001 589 01 16 00)

Courtesy of MERCEDES-BENZ USA