Remove/install oil pan - AR01.45-P-7500SMG

ENGINE 156 in MODEL 216, 221 

Fig 1: Identifying Oil Pan Remove/Install Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Oil Pan Remove/Install Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of death  caused by vehicle slipping or toppling off the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
	Risk of injury  caused by fingers being pinched or crushed  when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof	Keep body parts and limbs well clear of moving parts.	AS00.00-Z-0011-01A
	Risk of injury  to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning  caused by swallowing hydraulic fluid	Depressurize hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses.	AS00.00-Z-0013-01A
1	Deactivate easy entry/exit function for driver seat and steering wheel	Vehicles with memory package (driver seat, steering column, mirrors) code 275 When easy entry/exit for the driver seat and steering wheel is activated, the seat will move into the memory position when the ignition is switched on or the driver door is opened and closed; thus the top frame can be damaged when the holding device is installed.
2	Turn front wheels to straight-ahead position and secure steering wheel in place with a holding device	The steering wheel must not be turned when the steering coupling is detached, otherwise the clock spring contact will be destroyed.
			Figure
3	Remove engine intake air duct
4	Partially remove poly-V belt	Only remove poly-V belt from belt pulley of refrigerant compressor (A9).	AR13.20-P-0001SX
5	Only unscrew bolts (8) on bracket for oil dipstick guide tube (9) on back of cylinder head (10)		AR18.40-P-3510SMG
6	Mount engine hoist		AR33.10-P-0105SX
7	Lift engine a little
8	Remove bottom engine compartment paneling	Only install lower engine compartment paneling after engine test run and leak test.	AR61.20-P-1105SX
9	Remove oil pan bottom section (2)		AR01.45-P-7555SMG
10	Loosen engine mounts on front axle carrier		AR22.10-P-1260SX
11	Detach both holders from high pressure expansion hose on steering gear
12	Detach refrigerant compressor (A9) and put it on the side with connected lines	Push refrigerant compressor (A9) until the bolts of the supporting strut (7) are accessible.	AR83.55-P-5300SMG
13	Remove supporting strut (7) for power steering pump		*BA46.30-P-1004-01O
			*BA46.30-P-1005-01O
14	Disconnect engine oil lines (3) at connecting flange (4)	Seal engine oil lines (3). Replace sealing rings.
15	Detach engine oil lines (3) at crankcase (11)	Replace sealing rings.
			*BA03.20-P-1006-01J
			*BA01.45-P-1005-01R
			Fig 4
16	Detach spring struts on spring control arm	When working on the front axle, ensure that surfaces of all aluminum parts do not suffer any scratches, cracks and notches. Otherwise the service life of the of the parts will be reduced.	AR32.25-P-1017SY
17	Lower front axle carrier		AR33.10-P-0001SX
18	Disconnect electrical connector (12) at the oil sensor
19	Detach oil lines of automatic transmission (13) at oil pan (1)	Loosen clamp and rotate top section by 90°.
			*BA01.45-P-1005-01R
20	Remove bolts (14) on oil pan (1)	Pry off front cover (15) by turning a bolt on the oil pan (1). The 5 bolts located below must also be removed.
			*BA01.45-P-1002-01R
			*BA01.45-P-1006-01R
			*BA01.45-P-1007-01R
21	Pry off oil pan (1) from crankcase (11) and remove	Pry off oil pan (1) by turning a bolt on the crankcase (11) and loosen with an assembly wedge. Do not manage the sealing surfaces of the oil pan (1) and crankcase (11). If oil pan (1) cannot be detached from the crankcase (11), heat up the sealing surfaces of the oil pan (1) using a hot air gun. Replace sealing ring on oil dipstick guide tube (9). Check for correct seating of sealing ring on the oil dipstick guide tube (9) in the (1) oil pan.
			Fig 5
	Notes on sealant path for oil pan		AH01.45-P-0001-01AMG
			Figure
		Loctite sealant 5970	*BR00.45-Z-1013-01A
	Clean
22	Clean sealing surfaces on oil pan (1) and cylinder crankcase (11)	Do not use any sharp-edged tools or abrasive paper as this can damage the sealing surfaces.	AR01.00-P-0050-01A
		Loctite 7200	*BR00.45-Z-1038-04A
		Cleaning spray, Loctite 7063 (150ml)	*BR00.45-Z-1046-04A
23	Install in the reverse order
	Checking
24	Check engine oil level; correct if necessary
	Engine oil and filter change		AP18.00-P-0101SX
	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
25	Conduct engine test run and check engine for leaks whilst it is running

OIL PAN

Number	Designation			Engine 156
BA01.45-P-1002-01R	Oil pan top section on crankcase	M6	Nm	8.4
BA01.45-P-1005-01R	Bracket, oil lines to oil pan	M6	Nm	5
BA01.45-P-1006-01R	Oil line return to oil pan	M6	Nm	8.4
BA01.45-P-1007-01R	Oil line feed line to oil pan	M6	Nm	8.4

POWER STEERING PUMP

Number	Designation			Engine 156 in model 216, 221
BA46.30-P-1004-01O	Bolt, support holder to cylinder crankcase	M8X35	Nm	30
BA46.30-P-1005-01O	Bolt, support holder to power steering pump	M8X35	Nm	30

CRANKSHAFT BEARING CAP

Number	Designation			Engine 156
BA03.20-P-1006-01J	Oil line (oil radiator) with bracket	M8	Nm	20

Fig 3: Identifying Holding Device (129 589 01 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Set Of Stop Plugs (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Mounting Wedge (110 589 03 59 00)

Courtesy of MERCEDES-BENZ USA

Fig 6: Identifying Squeeze Gun (112 589 00 25 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1013-01A	Loctite sealant 5970	A 003 989 98 20
BR00.45-Z-1038-04A	Loctite 7200	Henkel Loctite Deutschland GmbH
BR00.45-Z-1046-04A	Cleaning spray, Loctite 7063 (150ml)	A 001 986 71 71 10