Remove/install oil pan · ar0145p7500mt · Mercedes-Benz WIS

AR01.45-P-7500MT

Remove/install oil pan

18.02.2020

Engine

270 in model 117, 156, 176, 242, 246.2

1	Oil pan
1s	Bolts
2	Crankcase

P01.45-2368-03

21	Clip
22	Bracket
23	Bracket
25	Bracket

P49.10-2972-12

Topical note	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Topical note	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
Topical note	Notes on bolted connections with self tapping screws		AH00.00-P-0007-01SF
 	Remove/install
1	Drain engine oil
		Engine 270.910 in model 117, 156, 176, 246.2	AP18.00-P-0101NK
		Engine 270.920 in model 117, 156, 176, 242, 246.2	AP18.00-P-0101NL
2	Remove poly-V belt		AR13.20-P-0001MT
3	Disconnect electrical connection on A/C compressor
4	Detach refrigerant line bracket on alternator
5	Detach A/C compressor at crankcase (2) and oil pan (1) and secure against falling down		AR83.55-P-5310MT
6	Detach clamp (21) on catalytic converter	Engine 270 in model 156	AR49.10-P-5500NKX
		Engine 270 in model 117, 176, 242, 246.2	AR49.10-P-5500MT
7	Detach bracket (22) on crankcase (2)	Engine 270 in model 156	AR49.10-P-5500NKX
		Engine 270 in model 117, 176, 242, 246.2	AR49.10-P-5500MT
8	Detach bracket (23) at oil pan (1)	Engine 270 in model 156	AR49.10-P-5500NKX
		Engine 270 in model 117, 176, 242, 246.2	AR49.10-P-5500MT
9	Remove lower torsion bar linkage		AR22.10-P-1130NKB
10	Unclip electrical connection for oxygen sensor upstream of CAT and disconnect
11	Unclip electrical line for oxygen sensor upstream of catalytic converter at bracket
12	Remove bracket (25) on cylinder head	Engine 270 in model 117, 176, 242, 246.2	AR49.10-P-5500MT
		Engine 270 in model 156	AR49.10-P-5500NKX
13	Remove heat shield above ATL		AR09.40-P-6025MT
14	Detach CAT at ATL		AR09.40-P-6025MT
15	Swivel CAT with exhaust pipe to the side
16	Disconnect electrical line at oil level check switch, unclip at oil pan (1) and place to one side
17.1	Remove screw/bolts from manual transmission on oil pan (1)	Engine 270 in model 117, 156, 176, 242, 246.2 with transmission 711
		 Screw/bolt, transmission to engineBolt, transmission to engine	*BA26.10-P-1001-01I
17.2	Remove screw/bolts from dual-clutch transmission at oil pan (1)	Engine 270 in model 117, 156, 176, 242, 246.2 with transmission 724
		 Bolt, transmission to engine	*BA27.10-P-1017-04F
18	Remove screw/bolts (1s) from oil pan (1)	Tightening procedure for oil pan bolts	AR01.45-P-7500-01MT
		 Installation: Pay attention to different screw/bolt lengths and tightening procedure.
		 Bolt, oil pan to crankcase/timing case cover	*BA01.45-P-1001-01T
19	Unfasten oil pan (1) from crankcase (2) and pull out downwards
	Notes on sealant path for oil pan		AH01.45-P-0001-01MMA
		 Do not drive any tools between the crankcase (2) and the oil pan (1) to release them. The sealing surfaces can be damaged otherwise.
		 If necessary, heat oil pan (1) in area around the sealing surfaces using a heat gun.
		 Installation: Apply sealant to sealing surface of oil pan (1) and, in doing so, observe notes on sealant path on the oil pan (1).
		Sealant, Loctite 5970, 50 ml	*BR00.45-Z-1013-01A
20	Remove oil level check switch	When installing a new oil pan (1).	AR18.40-P-5113MT
21	Check sealing ring of guide tube for oil measuring stick for damage; replace if necessary		AR18.40-P-0815-01MR
	Clean
22	Clean sealing surfaces on oil pan (1) and crankcase (2)		AR01.00-P-0050-01A
		 Do not use any sharp-edged tools or abrasive paper. The sealing surfaces can be damaged otherwise.
		Loctite 7200	*BR00.45-Z-1038-04A
		Loctite 7063 (400 ml) cleaning spray	*BR00.45-Z-1046-04A
23	Install in the reverse order
	Check
24	Check engine oil level and correct if necessary
		Engine 270.910 in model 117, 156, 176, 246.2	AP18.00-P-0101NK
		Engine 270.920 in model 117, 156, 176, 242, 246.2	AP18.00-P-0101NL
 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
25	Carry out engine test run, checking the engine for leaktightness and proper operation

 Oil pan

Number	Designation			Engine 270
BA01.45-P-1001-01T	Bolt, oil pan to crankcase/timing case cover	M6	Nm	11

 Manual transmission complete

Number	Designation		Transmission 711.631/632	Transmission 711.642/643/645/647
BA26.10-P-1001-01I	Bolt, transmission to engine	Nm	39	39

 Automatic transmission complete

Number	Designation		Transmission 724.0
BA27.10-P-1017-04F	Bolt, transmission to engine	Nm	39

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

Referenced documents

ah0000n000101a Notes on self-locking nuts and bolts
ah0000p000701sf Notes on bolted connections with self tapping screws
ah0000p500001a Notes on avoiding damage through contamination and foreign objects
ah0145p000101mma Notes on sealant path for oil pan
ap1800p0101nk Engine oil and oil filter change
ap1800p0101nkc Engine oil and oil filter change
ap1800p0101nkd Engine oil and oil filter change
ap1800p0101nl Engine oil and oil filter change
ar0100p005001a Remove sealant
ar0145p750001mt Tightening procedure for oil pan bolts
ar0940p6025mt Remove/install turbocharger with exhaust manifold
ar1320p0001mt Remove/install belt drive components
ar1320p0001mta Remove/install belt drive components
ar1840p081501mr Replace seal on oil dipstick guide tube
ar1840p5113mt Remove/install oil level check switch
ar1840p5113mta Remove/install oil level check switch
ar2210p1130nkb Remove/install lower pendulum support
ar4910p5500mt Remove/install catalytic converter
ar4910p5500mta Remove/install catalytic converter
ar4910p5500nkx Remove/install catalytic converter
ar8355p5310mt Refrigerant compressor, remove/install
as0000z000501a 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.