Remove/Install Engine Oil Pan - AR01.45-P-7500MRA

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Engine 274.9 in model 205

Engine 274.9 in model 253

MODIFICATION NOTES

30.03.2021

Check pilot bushing (50) and modify added.

Shown on Engine 274 in model 205.042 except code M005 (Vehicles with 4MATIC/all-wheel drive)

Fig 1: Engine Oil Pan Components Location - Engine 274.9 In Model 253 (Shown On Engine 274 In Model 205.042 Except Code M005)

Courtesy of MERCEDES-BENZ USA

Shown on Engine 274 with code M005 (Vehicles with 4MATIC/all-wheel drive)

Courtesy of MERCEDES-BENZ USA

	Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)	Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.	AS00.00-Z-0035-01A
	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
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Notes on threaded connections with aluminum screws/bolts		AH00.00-P-0006-01RM
Notice	General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment		AH00.00-Z-0300-01A
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Notice	Notes on battery		AH54.10-P-0001-01A
	Remove/install
1	Deactivate easy entry and exit feature.	Engine 274.9 in model 205 with code 275 (Memory Package (driver's seat, steering column and mirror)) Engine 274.9 in model 253 with code 275 (Memory Package (driver's seat, steering column and mirror))
2	Perform power disconnect of high-voltage on-board electrical system.	Engine 274.9 in model 205.047/053/054/147/247/253	AR54.10-P-1150LW
		Engine 274.9 in model 253.353/354/953/954	AR54.10-P-1150LVH
3	Secure vehicle on vehicle lift.		AR00.60-P-0100CW
4	Drain off coolant.	Engine 274.9 in model 205 except code M005 (Vehicles with 4MATIC/all-wheel drive) Engine 274.9 in model 253 except code M005 (Vehicles with 4MATIC/all-wheel drive)
		Only install front and lower center Engine compartment paneling after performing a leak test.	AR20.00-P-1142LW
5	Remove drain screw from oil pan (1) and catch Engine oil in a suitable container. Notes on Engine oil and filter changes	Replace sealing ring.	AH18.00-P-0104-01A
		Engine 274.91 in model 205 Engine 274.92 in model 205 (except 205.043/049/143/243/343/349/443/449), 253 (except 253.343/346/349/354/943/946/949/954) Engine 274.92 in model 205.043/049/143/243/343/349/443/449, 253.343/346/349/354/943/946/949/954 Engine oil	*BF18.00-P-1001-01ZA
		Drain screw to oil pan	*BA01.45-P-1002-01T
6	Remove guide tube (2) from oil pan (1) and charge-air distributor and pull out.		AR18.40-P-3510MRA
7	Remove clamp from catalytic converter at center exhaust system.	Engine 274.9 in model 205, 253 except code M005 (Vehicles with 4MATIC/all-wheel drive)	AR49.10-P-5500LW
8	Remove coolant hose to heater cooler from bulkhead.	Engine 274.9 in model 205, 253 except code M005 (Vehicles with 4MATIC/all-wheel drive)	AR20.20-P-7441-01RQ
9	Install Engine support fixture and slightly lift engine.		AR33.10-P-0105LW
10	Remove Engine carriers from the Engine mounts.	Engine 274.9 in model 205 except code M005 (Vehicles with 4MATIC/all-wheel drive)	AR22.10-P-4330LWA
		Engine 274.9 in model 205 with code M005 (Vehicles with 4MATIC/all-wheel drive)	AR22.10-P-4330LWB
		Engine 274.9 in model 253 except code M005 (Vehicles with 4MATIC/all-wheel drive)	AR22.10-P-4330LWC
		Engine 274.9 in model 253 with code M005 (Vehicles with 4MATIC/all-wheel drive)	AR22.10-P-4330LWD
11	Continue lifting Engine with Engine support fixture.	Engine 274.9 in model 205, 253 except code M005 (Vehicles with 4MATIC/all-wheel drive)
		Raise Engine carefully. Otherwise cables and lines will be damaged.
12.1	Lower front axle.	Engine 274.9 in model 205, 253 except code M005 (Vehicles with 4MATIC/all-wheel drive)	AR33.10-P-0100LW
12.2	Remove front axle.	Engine 274.9 in model 205, 253 with code M005 (Vehicles with 4MATIC/all-wheel drive)	AR33.10-P-0100LW
13	Remove front axle differential with support.	Engine 274.9 in model 205, 253 with code M005 (Vehicles with 4MATIC/all-wheel drive)
		Model 205 with Engine 274.9 with transmission 722.96 with code M005 (Vehicles with 4MATIC/all-wheel drive)	AR33.30-P-0525LWY
		Model 205, 253 with Engine 274.9 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive)	AR33.30-P-0525LWX
14	Remove oil lines for automatic transmission from oil pan (1) and from automatic transmission and place to one side.	Engine 274.9 in model 205 with transmission 722.9 Engine 274.9 in model 205, 253 with transmission 724.2 Engine 274.9 in model 205, 253 with transmission 725.0
		Engine 274.9 in model 205, 253 with transmission 725.0 except code M005 (Vehicles with 4MATIC/all-wheel drive)	AR27.55-P-0600MRE
		Engine 274.9 in model 205 with transmission 722.96	AR27.55-P-0600LWY
		Engine 274.9 in model 205, 253 with transmission 724.2	AR27.55-P-0600LWH
		Engine 274.9 in model 205 with transmission 722.9 (except 722.96)	AR27.55-P-0600LWA
		Engine 274.9 in model 205, 253 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive)	AR27.55-P-0600LW
15	Release and disconnect electrical connector o oil level check switch (S43).
16	Remove electric line of oil level check switch (S43) from oil pan (1).
17	Remove electrical water pump ground line from oil pan (1).	Engine 274.9 in model 205 (except 205.048/049/148/248/348/349/448/449), 253 (except 253.349/948/949) Ensure correct seating of the electrical water pump ground line at oil pan (1). Electrical malfunctions on the electrical water pump can occur otherwise. Electric water pump ground point	*BA00.19-P-1035-01E
18	Remove screws (3s) and remove oil pan lower part (3).
	Notes on sealant path for oil pan		AH01.45-P-0001-01MMA
	000 588 00 84 00 Heat gun	Do not drive any tools between oil pan bottom section (3) and oil pan (1) to loosen them. Heat oil pan bottom section (3) in area of the sealing surfaces if necessary using a heat gun. The sealing surface will be damaged otherwise. Apply sealant to oil pan bottom section (3).	WS54.00-P-0049B
		Bolt, oil pan bottom section to oil pan	*BA01.45-P-1005-01T
		Sealant, Loctite 5970, 50 ml	*BR00.45-Z-1013-01A
		Application gun	Fig 2
19	Remove oil suction pipe from oil pump.	Engine 274.9 in model 205 with code M005 (Vehicles with 4MATIC/all-wheel drive) Engine 274.9 in model 253 with code M005 (Vehicles with 4MATIC/all-wheel drive)
		Bolt, oil suction pipe to pipe flange/bracket	*BA18.10-P-1003-01S
20	Remove screws/bolts of transmission from oil pan (1).	Engine 274.9 in model 205, 253 with transmission 716.7Bolt/nut, transmission to engine	*BA26.10-P-1001-01J
		Transmission 724.2 in model 205.047/147/247, 253.354/954 with Engine 274.9Bolt/nut, transmission to engine	*BA27.10-P-1001-04G
		Transmission 722.9 in model 205 with Engine 274.9Bolt, automatic transmission to engine	*BA27.40-P-1008-01A
		Engine 274.9 in model 205, 253 with transmission 725.0 Screw/bolt, transmission to engine	*BA27.10-P-1001-04H
21	Remove screws (1s).	Pay attention to different lengths of screws. Bolt, oil pan to crankcase/timing case cover	*BA01.45-P-1001-01T
22	Release oil pan (1) from crankcase and remove downward.
	Notes on sealant path for oil pan		AH01.45-P-0001-01MMA
	000 588 00 84 00 Heat gun	Do not drive in tools between crankcase and oil pan (1) for release purposes. If necessary, heat oil pan (1) in area of sealing surfaces using a hot air gun. The sealing surface will be damaged otherwise. Apply sealant to oil pan (1) and, in doing so, observe notes on sealant path on the oil pan (1).	WS54.00-P-0049B
		Sealant, Loctite 5970, 50 ml	*BR00.45-Z-1013-01A
		Application gun	Fig 2
23	Check pilot bushing (50) for damage.	Engine 274.9 in model 205 Engine 274.9 in model 253 with code M005 (Vehicles with 4MATIC/all-wheel drive) If pilot bushing (50) is damaged: ↓ Replace pilot bushing (50). Observe installation position (arrow).
24	Remove pilot bushing (50).	Engine 274.9 in model 205 with code M005 (Vehicles with 4MATIC/all-wheel drive) Engine 274.9 in model 253 with code M005 (Vehicles with 4MATIC/all-wheel drive) When installing a new oil pan (1). Pilot bushing (50) must be installed in oil pan (1). Otherwise, the radial shaft sealing ring on the front axle differential will be damaged. If pilot bushing (50) is not seated correctly in oil pan (1): ↓ Install pilot bushing (50) in oil pan (1) correctly Observe installation position (arrow).
25	Remove oil level check switch (S43).	When installing a new oil pan (1).	AR18.40-P-5113MRA
26	Remove intermediate shaft from oil pan (1).	Engine 274.9 in model 205 with transmission 722.96 Engine 274.9 in model 205, 253 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive) Engine 274.9 in model 253 with transmission 724.2 with code M005 (Vehicles with 4MATIC/all-wheel drive) When installing a new oil pan (1). Engine 274.9 in model 253 with transmission 724.2 with code M005 (Vehicles with 4MATIC/all-wheel drive)	AR33.30-P-0625LWH
		Engine 274.9 in model 205 with transmission 722.96	AR33.30-P-0625LWY
		Engine 274.9 in model 205, 253 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive)	AR33.30-P-0625LWX
27	Remove holders for automatic transmission oil lines.	Engine 274.9 in model 205 with transmission 722.9 Engine 274.9 in model 205, 253 with transmission 724.2 Engine 274.9 in model 205, 253 with transmission 725.0 When installing a new oil pan (1).
		Transmission 724.2 in model 205.047/147/247, 253.354/954 with Engine 274.9Bolt, oil line bracket to oil pan	*BA27.10-P-1011-04G
		Transmission 722.9 in model 205 with Engine 274.9 Transmission 725.0 in model 205, 253 with Engine 274.9Bolt, bracket for oil line/oil cooling system to oil pan	*BA27.55-P-1013-01D
	Clean
28	Clean sealing surfaces of oil pan (1), oil pan lower part (3), and crankcase.	Do not use any sharp-edged tools or abrasive paper. The sealing surfaces can get damaged otherwise.	AR01.00-P-0050-01A
		Loctite 7200	*BR00.45-Z-1038-04A
		Loctite 7063 (400 ml) cleaning spray	*BR00.45-Z-1046-04A
29	Install in the reverse order.
	Check
30	Check Engine oil level and correct.
			AP18.00-P-1811MP
31	Correct oil level of transmission.	Engine 274.9 in model 205 with transmission 725.017 Engine 274.9 in model 205 with transmission 725.047 Engine 274.9 in model 253 with transmission 725.047	AR27.00-P-0270EWH
		Engine 274.9 in model 205, 253 with transmission 724.2	AR27.00-P-0270EH
		Engine 274.9 in model 205 with transmission 725.0 (except 725.017/047) Engine 274.9 in model 253 with transmission 725.0 (except 725.047)	AR27.00-P-0270EWN
		Engine 274.9 in model 205 with transmission 722.96	AR27.00-P-0270SYZ
		Engine 274.9 in model 205 with transmission 722.9 (except 722.96)	AR27.00-P-0270W
	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
32	Perform Engine test run and, while doing so, check Engine and transmission for leak tightness and function.
33	Install the front and lower center Engine compartment lining.		AR61.20-P-1105LW

GROUND POINTS

Number	Designation			Model 205 up to model year 2019	Model 205 as of model year 2019
BA00.19-P-1035-01E	Electric water pump ground point	W46/1	Nm	12	12

GROUND POINTS

Number	Designation			Model 253 (except 253.99) as of model year 2020	Model 253 (except 253.99) up to model year 2020
BA00.19-P-1035-01E	Electric water pump ground point	W46/1	Nm	12	12

OIL PAN

Number	Designation			Engine 274
BA01.45-P-1001-01T	Bolt, oil pan to crankcase/timing case cover	M6	Nm	11

OIL PAN

Number	Designation		Engine 274
BA01.45-P-1002-01T	Drain screw to oil pan	Nm	40

OIL PAN

Number	Designation			Engine 274
BA01.45-P-1005-01T	Bolt, oil pan bottom section to oil pan	M6	Nm	9

OIL PUMP

Number	Designation		Engine 274
BA18.10-P-1003-01S	Bolt, oil suction pipe to pipe flange/bracket	Nm	9

MANUAL TRANSMISSION COMPLETE

Number	Designation		Transmission 716.7
BA26.10-P-1001-01J	Bolt/nut, transmission to engine	Nm	40

AUTOMATIC TRANSMISSION COMPLETE

Number	Designation		Transmission 724.2
BA27.10-P-1001-04G	Bolt/nut, transmission to engine	Nm	39

AUTOMATIC TRANSMISSION COMPLETE

Number	Designation		Transmission 725.0/1
BA27.10-P-1001-04H	Screw/bolt, transmission to engine	Nm	39

AUTOMATIC TRANSMISSION COMPLETE

Number	Designation		Transmission 724.2
BA27.10-P-1011-04G	Bolt, oil line bracket to oil pan	Nm	12

HOUSING

Number	Designation			Transmission 722.9
BA27.40-P-1008-01A	Bolt, automatic transmission to engine	M10X40	Nm	38
		M10X45	Nm	38
		M10X90	Nm	38
		M12	Nm	-

TRANSMISSION OIL COOLING

Number	Designation		Transmission 722.9	Transmission 725.0
BA27.55-P-1013-01D	Bolt, bracket for oil line/oil cooling system to oil pan	Nm	12	12

ENGINE LUBRICATION

Number	Designation		Engine 274.91 in model 205, 213 Engine 274.92 in model 205, 213, 238, 253 except code M005 (Vehicles with 4MATIC/all-wheel drive)	Engine 274.92 in model 205, 213, 238, 253 with code M005 (Vehicles with 4MATIC/all-wheel drive)
BF18.00-P-1001-01ZA	Engine oil	Oil filling capacity with oil filter	7	6, 5
BF18.00-P-1001-01ZA	Engine oil	Specification	SI18.00-P-1311A	SI18.00-P-1311A

Fig 2: Identifying Application Gun (112 589 00 25 00)

Courtesy of MERCEDES-BENZ USA

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	A 010 989 90 71
BR00.45-Z-1046-04A	Loctite 7063 (400 ml) cleaning spray	A 001 986 71 71 09