Remove/install engine with front axle carrier

AR01.10-P-2500MRD

Remove/install engine with front axle carrier

29.05.2020

Engine

274.9 in model 213

with code M005 (Vehicles with 4MATIC/all-wheel drive)

Modification notes

12.07.2017

Operation steps revised.

Operation steps 1 to 5 and 45 to 47.

28.05.2020

Bolt, strut to soundproofing

Model 213

BA62.30-P-1004-01H

1

Refrigerant lines

6

Coolant hose

2

Refrigerant line

7

Vacuum line

3

Coolant hose

8

Purge line

4

Coolant hoses

10

Reinforcement

5

Coolant hose

15

Air conditioning pressure sensor

20

Low-temperature circuit temperature sensor

18

Bracket

21

Low-temperature circuit circulation pump

19

Bracket

22

Fuel hose

23

Steering coupling

25

Diagonal struts

 Danger

Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel.

No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only.
Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 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

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Notes on bolted connections with self tapping screws

AH00.00-P-0007-01SF

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Note on calculation of tightening torque when using insertion or socket tools with various effective lengths

AH00.00-P-0015-01CW

Use of engine no. when installing reconditioned engines and factory-new replacement engines or crankcases

AH01.10-P-0001-01A

Notes on repair work on suspension components

AH00.00-P-0100-01A

Notes on AIRmatic

Engine 274.9 in model 213
with code 489 (AIRMATIC)
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AH32.22-P-1000-02LW

General information on work on gasoline direct injection system

AH07.00-P-2000-01A

 

Remove/install

1

Secure vehicle against rolling away, shift transmission to neutral position and release parking brake

2

Turn front wheels to straight-ahead position and fix steering wheel in place with holding device

 Retainer device

*129589012100

3

Secure vehicle on vehicle lift

AR00.60-P-0100CW

4

Vent pressure in AIRMATIC system using diagnostic system

Engine 274.9 in model 213
with code 489 (AIRMATIC)
with code M005 (Vehicles with 4MATIC/all-wheel drive)



AD00.00-P-2000-04B

5

Disconnect ground line of battery

AR54.10-P-0003LW

6

Remove upper engine cover

7

Remove engine compartment paneling

AR61.20-P-1105LWE

 Installation: Only install lower engine compartment linings once leak test has been completed.

8

Relieve fuel pressure over diagnostic socket

AR07.03-P-1460-01MR

 Dust cap at service connection

*BA07.03-P-1003-01F

 Pressure hose

*119589046300

9

Drain off coolant

AR20.00-P-1142OLC

10

Drain air conditioning system

AR83.30-P-1760LW

11

Disconnect refrigerant lines (1) at connecting points and close off openings with a suitable stop plug



Compressor oils (specification 362.1)

BB00.40-P-0362-01A

 Installation:
Use new sealing rings. Wet all threads and sealing rings with compressor oil.
Refrigerant can otherwise escape.

 Nut/bolt, connecting point for refrigerant line

*BA83.30-P-1004-01R

 Record plug

*129589009100

12

Remove engine air intake duct upstream of air filter housing

13

Disconnect engine wiring harness

AR15.18-P-1000-05MRD

 M61

*BA00.10-P-1002-04A

 Nut, positive line to busbar on firewall

*BA54.18-P-1001-02C

 Screw/bolt/nut, ground line to transmission/underfloor

*BA00.19-P-1038-02A

14

Remove reinforcement (10)

15

Remove refrigerant line (2) from condenser and close off openings using suitable stop plugs



Compressor oils (specification 362.1)

BB00.40-P-0362-01A

 Installation:
Use new sealing rings. Wet all threads and sealing rings with compressor oil.
Refrigerant can otherwise escape.

 Nut/bolt, refrigerant line to condenser

*BA83.30-P-1006-01R

 Record plug

*129589009100

16

Remove coolant hose (3) from low-temperature circuit cooler

AR20.20-P-7441-01RQ

17

Release and disconnect electrical connection from fan unit

18

Remove coolant hoses (4) from expansion reservoir

AR20.30-P-4949OLC

19

Remove coolant hose (5) from engine

 Hose clamp pliers

*003589033700

20

Remove coolant hose (6) from firewall

AR20.20-P-7441-01RQ

21

Detach vacuum line (7) from vacuum pump

22

Release and disconnect purge line (8) at charge air cooler and seal openings with suitable stop plugs

 Record plug

*129589009100

23

Release and disconnect line for inerting system at firewall

Engine 274.9 in model 213
with code 2U8 (Alternative refrigerant)
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR86.10-P-0419LWE

24

Release and disconnect electrical connection from A/C pressure sensor (15)

25

Remove brackets (18, 19)

 Bolt, strut to soundproofing

*BA62.30-P-1004-01H

26

Release and disconnect electrical connection on low-temperature circuit temperature sensor (20)

27

Release and disconnect electrical connection on low-temperature circuit circulation pump (21)

28

Release and disconnect electrical connection from electric power steering actuator motor

AR46.20-P-0600LW

29

Remove steering coupling (23) from steering shaft

AR46.10-P-8000LW


Do not turn steering wheel when steering coupling (23) is removed.
The clock spring contact will be destroyed otherwise.

30

Unclip wiring harness for electric power steering from front axle carrier

AR46.20-P-0600LW

31

Remove the exhaust system

AR49.10-P-7142MRD

32

Remove fuel hose (22) from engine, catch escaping fuel in a suitable container and close off connections using suitable stop plugs

 Pliers for click clamps

*171589003700

 Record plug

*129589009100

33

Remove drive shaft from transmission output flange

AR41.10-P-0050LW

34

Remove diagonal struts (25)

 Bolt, front diagonal strut to front axle carrier/torsion bar bearing shell/radiator mounting console

*BA61.10-P-1006-01L

 Bolt, front diagonal strut to longitudinal member

*BA61.10-P-1007-01L

 Engine mount wrench set

*001589011600

35

Remove rpm sensors from steering knuckles

AR42.30-P-0712LW

36

Unclip electrical lines from spring control arms and steering knuckles

37.1

Remove brake caliper with brake linings and with attached brake hose free of tension to the vehicle

Engine 274.9 in model 213
with code M005 (Vehicles with 4MATIC/all-wheel drive)4-piston fixed-caliper brake

AR42.10-P-0070LWA


Do not kink, crush or subject lines to tension.
This leads to line damage.

37.2

Remove brake caliper with brake caliper supports and fasten unstressed on vehicle

Engine 274.9 in model 213
with code M005 (Vehicles with 4MATIC/all-wheel drive)1-piston floating caliper brake

AR42.10-P-0070LW


Do not kink, crush or subject lines to tension.
This leads to line damage.

38

Remove steering knuckles from top transverse control arms

AR33.25-P-0400LW


Secure the steering knuckle again folding away.
This damages the joints.

39

Remove suspension struts from spring control arms

Engine 274.9 in model 213
with code 489 (AIRMATIC)
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR32.25-P-1017LWL

Engine 274.9 in model 213
with code M005 (Vehicles with 4MATIC/all-wheel drive)
except code 489 (AIRMATIC)

AR32.25-P-1017LW

40

Support front axle carrier, secure engine transmission unit and radiator package using suitable means against slipping and falling down



000 588 03 62 00 Lifting platform

WS01.00-P-0091A

41

Remove rear engine carrier from frame floor assembly

AR22.10-P-4360OLC

 The rear engine support remains on the transmission.

42

Remove screws of front axle carrier from longitudinal members

 Bolt, front axle carrier to longitudinal member

*BA33.10-P-1001-01Q

43

Lower engine transmission unit with front axle carrier and radiator package



000 588 03 62 00 Lifting platform

WS01.00-P-0091A


Ensure that engine and its detachable parts are not in contact with body panels or major assemblies.
Do not kink, crush or subject lines to tension.
This leads to component and/or line damage.

 Aid of helper required.

44

Install in the reverse order

Concluding tasks

45

Check engine oil level and correct if necessary



AP18.00-P-1811MP

46

Correct transmission oil level.

Engine 274.9 in model 213 with transmission 725.047
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR27.00-P-0270EWH

Engine 274.9 in model 213 with transmission 725.0 (except 725.007/017/047)
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR27.00-P-0270EWN

47

Check engine cooling system and low-temperature circuit for leaktightness

48

Perform wheel alignment check

AR40.20-P-0200LW

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

49

Perform engine test run; as part of this check engine and major assemblies for proper operation and leak tightness

 Metric screws/bolts and nuts as per MBN 10 105, 10 143

Number

Designation

8.8

10.9

BA00.10-P-1002-04A

M61

Nm

9

13

 Ground points

Number

Designation

Model 213

BA00.19-P-1038-02A

Screw/bolt/nut, ground line to transmission/underfloor

M8

Nm

20

 Injection nozzles, injection valves, lines

Number

Designation

Engine 274

BA07.03-P-1003-01F

Dust cap at service connection

Plastic

Nm

2

Metal

Nm

15

 Front axle carrier

Number

Designation

Model 213

BA33.10-P-1001-01Q

Bolt, front axle carrier to longitudinal member

Nm

180

 Wiring harness

Number

Designation

Model 213

BA54.18-P-1001-02C

Nut, positive line to busbar on firewall

M6

Nm

8

M8

Nm

16

 Frame floor assembly

Number

Designation

Model 213

BA61.10-P-1006-01L

Bolt, front diagonal strut to front axle carrier/torsion bar bearing shell/radiator mounting console

Nm

50

 Frame floor assembly

Number

Designation

Model 213

BA61.10-P-1007-01L

Bolt, front diagonal strut to longitudinal member

Nm

50

 Cross member and front reinforcement

Number

Designation

Model 213

BA62.30-P-1004-01H

Bolt, strut to soundproofing

M8

Nm

20

 Air conditioning

Number

Designation

Model 213
except code 1U6 (R744 refrigerant)

BA83.30-P-1004-01R

Nut/bolt, connecting point for refrigerant line

Nm

12

 Air conditioning

Number

Designation

Model 213
except code 1U6 (R744 refrigerant)

BA83.30-P-1006-01R

Nut/bolt, refrigerant line to condenser

Nm

12