Remove/install engine with front axle carrier

AR01.10-P-2500RC

Remove/install engine with front axle carrier

30.10.08

 

Remove/install



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A



Notes on Active Body Control suspension

AH32.50-P-0001-01N

 Installation

Only tighten nuts and bolts of chassis components when vehicle is in a ready-to-drive condition.

1

Move selector lever into position "N"

2

Deactivate easy entry/exit function

Vehicles with memory package (driver seat, steering column, mirrors) code 275

AR54.30-P-1000-02EDR

3

Turn front wheels to straight-ahead position and secure steering wheel with holding device

 The steering wheel must not be turned when the steering coupling is detached, otherwise the clock spring contact will be destroyed.



*129589012100

4

Secure vehicle on vehicle lift

5

Remove air filter housing

AR09.10-P-1150LA

6

Suction refrigerant out of air conditioning

7

Remove the exhaust fully

AR49.10-P-7000RB

8

Remove bottom engine compartment paneling

AR61.20-P-1105R

9

Detach front diagonal struts

 Installation: The bolts on the diagonal struts may only be tightened when the vehicle is resting with its wheels on the ground.



*BA62.30-P-1001-01A



*BA62.30-P-1006-01A

10

Pinch off engine wiring harness

AR01.00-P-2410R

11

Pull purge line (4) out of crankcase ventilation system and place to one side

12

Empty expansion reservoir (10a, 11a)



*210589007100

13

Detach oil feed line (11b) from expansion reservoir (11a)

14

Detach oil feed line (10b) from power steering pump

Remove power steering pump.

AR46.30-P-0500RB

15

Open hose clamp and detach hose (3a) from return line (3b)

 Seal line with plugs.



*129589009100

16

Remove nuts (1a) and remove return line (3b) from longitudinal member

17

Disconnect refrigerant line (20)

 Installation: Replace sealing ring



*BA83.55-P-1008-01A

18

Remove refrigerant line (16) from fluid reservoir (16a)

Installation: Replace seal ring.



*BA83.55-P-1007-01A

19

Drain engine oil



Engine oil and filter change

AP18.00-P-0101H

20

Drain coolant at radiator

AR20.00-P-1142H

21

Drain coolant from low temperature circuit

AR20.00-P-1142HM

22

Remove front wheels



Take off/fit on wheel

AP40.10-P-4050Z

23

Remove front left fender liner from front fender

24

Detach retaining clamp (17a)

25

Relieve pressure in front axle ABC system

AR32.50-P-0001-01N



*BA32.50-P-1001-02B

26

Detach pressure line (17) from valve unit (Y36/1)



*BA32.50-P-1021-01A

27

Remove coolant line (30) from radiator (34)

See "Disconnect Henn coupling".

AR09.41-P-1311-01AL

28

Open hose clamps (32a) and pull coolant lines (32) out



*003589033700

29

Disconnect oil cooler lines (38a)



*BA18.30-P-1003-01B

30

Detach oil cooler lines for automatic transmission at the radiator

Model 230.476/ 477

AR20.20-P-3865R

Model 230.479

AR20.20-P-3865RM

31

Unscrew nuts (37a) and only loosen nuts (37b)

 Nuts (37b) must be loosened so that the suspension struts can move.



*BA32.25-P-1001-04B

32

Remove tie rods from steering knuckles

 Installation: Replace self-locking nuts.

AR46.40-P-0200-02I



*BA46.40-P-1001-01E



*163589034300



*220589003300



*140589006300

33

Remove torque struts from front axle carrier

AR33.15-P-0160R

34

Remove spring control arm from front axle carrier

AR33.15-P-0170R

35

Disconnect steering coupling

AR46.10-P-8000I

36

Detach bracket (36) of rear engine compartment paneling

37

Lower fuel pressure at fuel distributor rail

AR07.03-P-1460-01VA



*119589046300

38

Detach fuel distributor (8) at fuel distributor rail

 Seal connections with plugs.



*BA07.52-P-1002-01E



*129589009100

39

Support front axle carrier using the lifting platform

AR01.10-P-2500-01A

40

Remove engine crossmember and engine mount

AR22.10-P-1160AB

41

Disconnect shift rod from range selector lever

AR27.10-P-0500RC

42

Detach propeller shaft from transmission output flange

AR41.10-P-0050R

43

Remove bolts from front axle carrier at longitudinal members

AR33.10-P-0100N

44

Lower engine-transmission unit with front axle carrier

45

Install in the reverse order

46

Fill and bleed ABC system

AR32.50-P-0021N

47

Perform wheel alignment check

AR40.20-P-0200R

48

Read out fault memory and erase if necessary

STAR DIAGNOSIS diagnosis system



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-P-2000-04A

 Danger!

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

49

Carry out engine test run while checking engine for function and oil leaks

Number

Designation

Model
230

BA62.30-P-1001-01A

Bolt, crossmember to body

Nm

20

BA62.30-P-1006-01A

Bolt connecting reinforcement plate to
front axle carrier

Nm

12

Number

Designation

Engine
275, 285

BA07.52-P-1002-01E

Union nut connecting fuel feed line to fuel distributor

Nm

20

Number

Designation

Model
230 except code P99

Model
230 with code P99

BA32.25-P-1001-04B

Nut, front suspension strut to front end

Nm

20

25

Number

Designation

Engine
275
in model
215, 220, 230

BA83.55-P-1007-01A

Nut connecting refrigerant line to air conditioning fluid reservoir

Nm

8

BA83.55-P-1008-01A

Refrigerant line separation point between AC compressor and heat exchanger

Nm

8

Number

Designation

Model
230

BA32.50-P-1021-01A

Bolt connecting line to front axle valve unit

M825

Nm

20

Number

Designation

Model
230

BA32.50-P-1001-02B

Bleed screw on soldered fitting in hydraulic line

M101

Nm

20

Number

Designation

Model
230

BA46.40-P-1001-01E

Self-locking nut, tie rod to steering knuckle

Stage 1

Nm

50

Stage 2

°

60

Number

Designation

Engine
275.950/
951/953/
954, 285

Engine
275.980/
981/982/
983

BA18.30-P-1003-01B

Union nut, oil line to oil cooler

Nm

30

30