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

Engine 272 in model 221 Vehicles with front sump 

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
	Notes on AIRmatic		AH32.22-P-1000-02SX
	Risk of death  when touching components on vehicles with high-voltage on-board electrical system	Do not touch components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers), must not  carry out any work on high-voltage on-board electrical systems.	AS54.00-Z-0001-01A
1	Perform enable for the high voltage on-board electrical system	Perform disable/initial startup for high-voltage on-board electrical system ENGINE 272.974 in MODEL 221.095/195	AR54.10-P-1150SXH
	Note on high-voltage on-board electrical system		AH54.00-P-0010-01A
		After completing the work, attach initial startup event log together with the power disable event log to the vehicle file.
2	Empty suspension struts using STAR DIAGNOSIS	MODEL 221 (except 221.095/195) with CODE 489 (AIRMATIC)
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
3	Deactivate easy entry/exit feature	MODEL 221 (except 221.095/195) with CODE 275 (Memory package)
			AR54.30-P-1000-02ESX
4	Turn front wheels to straight-ahead position and secure steering wheel with holding device	Except model 221.095/195 The steering wheel must not be turned when detaching steering coupling. The clock spring contact may be destroyed otherwise.
		Retainer device	Figure
5	Detach front wheel-and-tire assemblies	Except model 221.095/195
			AP40.10-P-4050SX
6	Remove air filter housing		AR09.10-P-1150SX
7	Remove lower engine compartment paneling		AR61.20-P-1105SX
		Only install engine compartment paneling after engine test run.
8	Remove transmission	Model 221.0/1 with transmission 722.9 without 4MATIC	AR27.10-P-0500SX
9	Remove heat shield below right CAT and over the power electronics	ENGINE 272.974 in MODEL 221.095/195	AR08.10-P-0011SXH
10	Unfasten power electronics from bracket and intermediate housing and lay to one side with attached lines	ENGINE 272.974 in MODEL 221.095/195	AR08.10-P-0011SXH
11	Detach retaining clamp for power electronics coolant line to DC/DC converter from front axle carrier	ENGINE 272.974 in MODEL 221.095/195	AR08.10-P-0011SXH
12	Disconnect electrical connection on rotor position sensor and on crankshaft Hall sensor	MODEL 221.095/195
		Remove/install rotor position sensor	AR15.12-P-2139SXH
		Remove/install crankshaft position sensor	AR15.12-P-2133SX
13	Remove intermediate housing	MODEL 221.095/195
		Screw/bolt, intermediate housing to crankcase/oil pan	*BA01.40-P-1013-01G
14	Drain engine oil
		ENGINE 272.975	AP18.00-P-0101VA
		ENGINE 272.946/965/974	AP18.00-P-0101PIT
15	Remove oil pan bottom section (1)		AR01.45-P-7555SX
16	Disconnect electrical connection (2) on switch (S43)
17	Remove screw/bolt (1)	Except model 221.095/195
		Screw/bolt, oil pan to cylinder crankcase, timing case cover or rear cover	*BA01.45-P-1002-01M
18	Remove screw/bolts (1b) and take off bracket (5) with switch (S43)	Except model 221.095/195
		Screw/bolt, oil pan to cylinder crankcase, timing case cover or rear cover	*BA01.45-P-1002-01M
19	Remove oil dipstick guide tube (7)		AR18.40-P-3510SX
20	Detach left CAT from exhaust manifold and unclip connector of oxygen sensor (G3/3x1, G3/5x1) from bracket		AR49.10-P-7100SX
21	Detach engine mount (6) from front axle carrier (31)	ENGINE 272.946/965	AR22.10-P-1260SX
		ENGINE 272.974 in MODEL 221.095/195	AR22.10-P-1260SXH
22	Preassemble two adaptations on engine hoist	MODEL 221.095/195 Two adaptations  are necessary when removing the oil pan (10) in order to guarantee secure lifting of the engine.
		Adaptation of engine lifting device	Fig 5
23	Mount engine hoist and raise engine		AR33.10-P-0105SX
		Lift out engine carefully and ensure that the engine does not touch the partition wall. Damage can occur to lines and cables otherwise. MODEL 221.095/195 Before lowering the engine, mount oil line loosely with the double clamp on electrical A/C compressor.
24	Disconnect steering coupling	Model 221.0/1	AR46.10-P-8000SX
25	Loosen bolted connections for spring control arm on front axle carrier (31)	Except code 487 (Active Body Control (ABC)) and code Z07 (Highest protection)	AR33.15-P-0170SX
26	Detach bolted connections for strut rods on front axle carrier (31)	Model 221.0/1	AR33.15-P-0160SX
27	Detach link rods from stabilizer bar	Model 221.0/1 except code 487 (Active Body Control (ABC))	AR32.20-P-0300SX
28	Remove screw/bolt (1c) and double clamp (8) from oil line	Except model 221.095/195
		Bolt, clamp of oil cooler oil line to bracket	*BA27.55-P-1005-01D
29	Unfasten double clamp bracket for oil line on electrical A/C compressor, twist and tighten screw/bolt again	MODEL 221.095/195 In order to allow moving in/moving out of the oil pan (10).
30	Detach retaining clamp (9) from front axle carrier (31)	Except model 221.095/195
31	Remove vehicle jack lift support point (18) from front axle carrier (31)	Except model 221.095/195
32	Remove screw/bolts from oil pan (10)		AR01.45-P-7500-06VA
		Pay attention to the varying bolt lengths and bolt diameters according to the bolt plan.
		Screw/bolt, oil pan to cylinder crankcase, timing case cover or rear cover	*BA01.45-P-1002-01M
		Oil pan top section to cylinder crankcase at transmission end	*BA01.45-P-1005-01M
		Bolt, automatic transmission to engine	*BA27.40-P-1008-01A
33	Prop front axle carrier (31) with transmission jack (01) and transmission platform (02) Except model 221.095/195
34	Remove screw/bolts (1d) from front axle carrier (31)	Except model 221.095/195 Only tighten screw/bolts and nuts of suspension components when vehicle is in a ready-to-drive condition.
		Bolt, front axle carrier to longitudinal member	*BA33.10-P-1001-01K
35	Lower front axle carrier (31)	Except model 221.095/195 Lower front axle carrier (31) carefully. The lines and cable can be damaged otherwise.
36	Detach oil pan (10) from crankcase and lay on front axle carrier (31)
	Notes on sealant path for oil pan		AH01.45-P-0001-01VA
		Carefully pry off the oil pan (10) from the crankcase. The sealing surfaces can be damaged. Apply sealant to sealing surface of oil pan (10).
		Loctite 5970 sealant	*BR00.45-Z-1013-01A
		Application gun	Figure
37	Detach intake manifold (3) from oil pump (4)	Except model 221.095/195
		Screw/bolt, oil suction pipe to oil pump	*BA18.10-P-1004-01B
38	Remove oil pan (10) to the rear
	Clean
39	Clean sealing surfaces on the oil pan (10) and crankcase		AR01.00-P-0050-01A
		Do not use any sharp-edged tools or abrasive paper. The sealing surfaces can get damaged otherwise.
		Loctite 7200	*BR00.45-Z-1038-04A
		Loctite 7063 cleaning spray (150 ml)	*BR00.45-Z-1046-04A
40	Install in the reverse order
41	Read out fault memory with STAR DIAGNOSIS and clear if necessary
42	Perform wheel alignment check	Model 221.0/1	AR40.20-P-0200SX
43	Check engine oil level approx. 5 min. after switching off the engine at operating temperature, correct if necessary
		ENGINE 272.975	AP18.00-P-0101VA
		ENGINE 272.946/965/974	AP18.00-P-0101PIT
	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
44	Carry out an engine test run, checking the engine for proper operation and leaktightness

Fig 3: Identifying Application Gun (112 589 00 25 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Retainer Device (129 589 01 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Adaptation Of Engine Lifting Device (642 589 00 61 00)

Courtesy of MERCEDES-BENZ USA