Remove/install front engine mount

AR22.10-P-4330RF

Remove/install front engine mount

23.10.2017

Engine

642 in model 253

Engine

651 in model 253

Shown on engine 651 with code M005(4MATIC) on the right

1

Engine mount

2

Screw/bolts

3

Screw/bolt

4

Heat shield

5

Heat shield

6

Electrical connection

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

Evaluation of elastomer bearings

AH00.10-P-0001-01A

 

Remove/install

1

Remove both air filter housings

Engine 642 in model 253

AR09.10-P-1150OGW

2

Remove front axle shafts

Engine 642, 651 in model 253 with transmission 725.0
with code M005 (4MATIC)

AR33.30-P-0620LW

3.1

Remove catalytic converter DPF unit

For removal of the right-hand engine mount (1).

Engine 651 in model 253
except code M005 (4MATIC)

AR49.10-P-5501LWB

3.2

Remove catalytic converter

For removal of the right-hand engine mount (1).

Engine 651 in model 253
with code M005 (4MATIC)

AR49.10-P-5500OLE

3.3

Remove diesel particulate filter

Engine 642 in model 253
with code M005 (4MATIC)
For removal of the right-hand engine mount (1).

AR14.40-P-1000OGW

4

Remove heat shields (4, 5)

Engine 651 in model 253
For removal of the right-hand engine mount (1).

 Bolt, heat shield to engine support

*BA22.10-P-1003-02A

5

Disconnect electrical connection (6) and unclip electrical lines on bracket

6

Remove screw/bolts (2) at front axle carrier

 Screw/bolt, front engine mount to front axle carrier

*BA22.10-P-1002-03M

7

Attach engine hoist

AR33.10-P-0105LWD

8

Lift engine further until the engine mount (1) can be removed

9

Remove screw/bolt (3)

 Bolt, front engine mount to engine support

*BA22.10-P-1001-03M

10

Remove engine mount (1) downwards

 Installation: In case of damage always replace engine mount (1) in pairs.

 Pay attention to environmental protection regulations for disposal of engine mounts (1). Dispose of engine mounts (1) into mixed scrap.

11

Install in the reverse order

 Engine mount, engine support (engine side)

Number

Designation

Model 253 (except 253.388/389/988/989)

BA22.10-P-1001-03M

Bolt, front engine mount to engine support

Stage 1

Nm

50

Stage 2

°

-

 Engine mount, engine support (engine side)

Number

Designation

Model 253 (except 253.388/389/988/989)

BA22.10-P-1002-03M

Screw/bolt, front engine mount to front axle carrier

Nm

30

 Engine support (engine side)

Number

Designation

Engine 651

BA22.10-P-1003-02A

Bolt, heat shield to engine support

Nm

9