Remove/install oil pan

AR01.45-P-7500OLD

Remove/install oil pan

18.02.2020

Engine

651 in model 205, 253

Shown on model 205

1

Bracket

2

Electrical wiring harness

Shown on engine 651 with transmission 722.9 (except 722.96)

3

Electrical line

6

Screw

4

Oil pan top section

7

Bolts

5

Cable duct

8

Bolts

Shown on engine 651 with transmission 722.96

3

Electrical line

7

Bolts

4

Oil pan top section

8

Bolts

5

Cable duct

9

Bolts

6

Screw

10

Front axle transmission support brace

 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

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

Topical note

Notes on threaded connections with aluminum screws/bolts

AH00.00-P-0006-01RM

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Notes on engine oil and filter changes

AH18.00-P-0104-01A



Remove

1

Remove flywheel/drive plate

AR03.30-P-8001OLD

2

Remove screw plug at oil pan, drain engine oil and catch in a suitable container

Engine 651 in model 205, 253
with code M005 (Vehicles with 4MATIC/all-wheel drive)

3

Remove guide tube of oil dipstick

AR18.40-P-3510OLD

4

Detach bracket (1) with electrical wiring harness (2) from the rear right engine suspension lug and place to one side

5

Remove front axle

AR33.10-P-0100LW

6

Remove front axle transmission

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

AR33.30-P-0525LWX

Engine 651 in model 205 with code M005 (4MATIC)

AR33.30-P-0525LWY

7

Remove screw/bolts (9) and detach front axle transmission support(10) at oil pan top section (4)

Engine 651 in model 205 with transmission 722.96
with code 427 (7G-TRONIC)
Engine 651 in model 253 with transmission 725.0
with code 427 (7G-TRONIC)

8

Remove oil pan bottom section

Engine 651 in model 205, 253
except code M005 (Vehicles with 4MATIC/all-wheel drive)

AR01.45-P-7555OLD

9.1

Detach electrical line (3) for temperature sensor upstream of diesel particulate filter at oil pan top section (4)

Engine 651 in model 205, 253
except code M005 (Vehicles with 4MATIC/all-wheel drive)

9.2

Detach electrical line (3) for switch oil level check at oil pan top section (4)

Engine 651 in model 205, 253
with code M005 (Vehicles with 4MATIC/all-wheel drive)

10

Release and disconnect electrical connection for oil level check switch

Engine 651 in model 205, 253
with code M005 (Vehicles with 4MATIC/all-wheel drive)

11

Remove screw/bolt (6) and press the cable duct (5) to the side

12

Detach A/T oil cooling line at oil pan top section (4)

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

AR27.55-P-0600LW

Engine 651 in model 205 with code M005 (4MATIC)

AR27.55-P-0600LWB

Engine 651 in model 205 with code M005 (4MATIC)

AR27.55-P-0600LWY

13

Remove screw/bolts (7) at timing case cover

14

Remove screw/bolts (8) on oil pan top section (4)

 Do not remove two opposite screw/bolts (8) yet but just unscrew by about four turns.

15

Screw screws/bolts M6x60 into the prying off threaded bores (arrow) and pry off oil pan top section (4) from crankcase through alternate tightening


Carefully screw in M6x60 screw/bolts.
The oil pan top section (4) and the contact surface on the crankcase can get damaged otherwise.

16

Remove remaining two screw/bolts (8) from oil pan top section (4) and remove oil pan top section (4)

17

Remove screw/bolts M6x60 for prying off the oil pan top section (4) from the prying off threaded bores (arrows)

18

Remove pilot bushing in crankcase

 Pilot bushing are no longer required.



Clean

19

Clean sealing surfaces for oil pan top section (4), the crankcase and the timing case cover

AR01.00-P-0050-01A

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A

Loctite 7200

*BR00.45-Z-1038-04A



Install

20

Apply sealant to sealing surface on oil pan top section (4)

Notes on sealant path for oil pan

AH01.45-P-0001-01CD

Sealant, Loctite 5970, 50 ml

*BR00.45-Z-1013-01A

 Application gun

*112589002500

21

Mount oil pan top section (4) on crankcase using screw/bolts (7, 8)

 Screw in screw/bolts (7, 8) so that oil pan top section (4) can still be moved.

22

Fully tighten bolts (8)

Bolt plan for oil pan

AR01.45-P-7500-06CD

 Follow the bolt plan.

 Bolt, oil pan top section to crankcase/lower crankcase section

*BA01.45-P-1001-01S

23

Tighten screws/bolts (7)

Bolt plan for timing case cover

AR01.40-P-8000-01CD

 Follow the bolt plan.

 Bolt, timing case cover to crankcase/cylinder head/oil pan top section

*BA01.40-P-1001-01X

24

Mount A/T oil cooling line on oil pan top section (4)

Engine 651 in model 205 with code M005 (4MATIC)

AR27.55-P-0600LWY

Engine 651 in model 205 with code M005 (4MATIC)

AR27.55-P-0600LWB

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

AR27.55-P-0600LW

25

Mount cable duct (5)

26

Connect electrical connection for oil level check switch

Engine 651 in model 205, 253
with code M005 (Vehicles with 4MATIC/all-wheel drive)

27.1

Mount electrical line (3) for switch oil level check at oil pan top section (4)

Engine 651 in model 205, 253
with code M005 (Vehicles with 4MATIC/all-wheel drive)

27.2

Mount electrical line (3) for temperature sensor upstream of diesel particulate filter at oil pan top section (4)

Engine 651 in model 205, 253
except code M005 (Vehicles with 4MATIC/all-wheel drive)

28

Install oil pan bottom section

Engine 651 in model 205, 253
except code M005 (Vehicles with 4MATIC/all-wheel drive)

AR01.45-P-7555OLD

29

Screw screw plug into the oil pan using a new sealing ring and tighten

Engine 651 in model 205, 253
with code M005 (Vehicles with 4MATIC/all-wheel drive)

 Drain screw to oil pan

*BA01.45-P-1003-01S

30

Mount front axle transmission support (10) on oil pan top section (4)

Engine 651 in model 205 with transmission 722.96
with code 427 (7G-TRONIC)
Engine 651 in model 253 with transmission 725.0
with code 427 (7G-TRONIC)

 Collar bolt, support to oil pan

*BA33.30-P-1011-03G

31

Install front axle transmission

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

AR33.30-P-0525LWX

Engine 651 in model 205 with code M005 (4MATIC)

AR33.30-P-0525LWY

32

Install front axle

AR33.10-P-0100LW

33

Mount bracket (1) with electrical wiring harness (2) on rear right engine suspension lug

34

Install guide tube of oil dipstick

AR18.40-P-3510OLD

35

Pour in engine oil

Engine 651 in model 205, 253
with code M005 (Vehicles with 4MATIC/all-wheel drive)


Use only approved engine oils.
Engine damage can occur otherwise.

 Engine oil

*BF18.00-P-1001-01Z

36

Install flywheel/drive plate

AR03.30-P-8001OLD



Check

37

Check engine oil level and correct if necessary



AP18.00-P-1811MP

 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

38

Carry out engine test run and check engine for leaktightness in the area of the oil pan

 Crankcase, timing case cover, end cover

Number

Designation

Engine 651

BA01.40-P-1001-01X

Bolt, timing case cover to crankcase/cylinder head/oil pan top section

M8

Nm

20

 Oil pan

Number

Designation

Engine 651

BA01.45-P-1001-01S

Bolt, oil pan top section to crankcase/lower crankcase section

M6

Nm

10

M8

Nm

22

 Oil pan

Number

Designation

Engine 651

BA01.45-P-1003-01S

Drain screw to oil pan

Metal

Nm

30

Plastic

Nm

4

 Front axle gear

Number

Designation

Model 205

Model 253

BA33.30-P-1011-03G

Collar bolt, support to oil pan

Nm

60

60

 Engine lubrication system

Number

Designation

Engine 651 in model 205, 253

BF18.00-P-1001-01Z

Engine oil

Filling capacity (oil and filter change)

Liter

6

Overview sheet

BB00.40-P-0223-02A

References sheet

BB00.40-P-0226A

Repair materials

Number

Designation

Order number

BR00.45-Z-1013-01A

Sealant, Loctite 5970, 50 ml

A 003 989 98 20 10

BR00.45-Z-1038-04A

Loctite 7200

Henkel AG & Co. KGaA
http://www.loctite.de

BR00.45-Z-1046-04A

Loctite 7063 (400 ml) cleaning spray

A 001 986 71 71 09