Remove/install timing case cover · ar0140p8000mrd · Mercedes-Benz WIS

AR01.40-P-8000MRD

Remove/install timing case cover

18.02.2020

Engine	274.9 in model 213
Engine	274.9 in model 238

Shown on engine 274.9 in model 213.050

1	Bolts
2	Timing case cover
3	Oil pan
4	Cap
5	Bolts
6	Screw
7	Electrical connector
8	Electrical connector

P01.40-2369-06

 Warning	Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.	Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses.	AS20.00-Z-0001-01A
 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
 Danger	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.Engine 274.9 in model 213.050	AS00.00-Z-0035-01A
Topical note	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	Engine 274.9 in model 213.050	AH00.00-Z-0300-01A
Topical note	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Topical note	Notes on coolant		AH20.00-N-2080-01A
	Remove
1	Perform enable for the high voltage on-board electrical system	Engine 274.9 in model 213.050
			AR54.10-P-1150LHV
2	Deactivate memory package over the COMAND operating unit	Engine 274.9 in model 213 with code 275 (Memory Package (driver's seat, steering column and mirror)) Engine 274.9 in model 238 with code 275 (Memory Package (driver's seat, steering column and mirror))
3	Turn front wheels to straight-ahead position and fix steering wheel in place with holding device	 The steering wheel must not be turned for a separated steering coupling. Otherwise the clock spring contact will be destroyed.
		 Retainer device	*129589012100
4	Disconnect ground line of battery	Engine 274.9 in model 238	AR54.10-P-0003LWO
		Engine 274.9 in model 213	AR54.10-P-0003LW
5	Secure vehicle on vehicle lift		AR00.60-P-0100CW
6	Drain off coolant		AR20.00-P-1142OLC
7	Remove air filter housing		AR09.10-P-1150MRD
8	Remove ATL heat shield		AR09.40-P-6036MRD
9	Remove charge air pipe between charge air cooler and ATL
10	Remove vibration damper		AR03.30-P-1800MRD
11.1	Remove poly-V belt tensioning device	Engine 274.9 in model 213 (except 213.050) Engine 274.9 in model 238
			AR13.25-P-3220MRD
11.2	Remove screw (6)	Engine 274.9 in model 213.050
12	Remove upper guide pulley for poly-V belt	Engine 274.9 in model 213.048/049/148 Engine 274.9 in model 238.348/448
13.1	Remove A/C compressor from engine, place with attached lines to one side and secure against falling down	Engine 274.9 in model 213 (except 213.050) Engine 274.9 in model 238
		Engine 274.9 in model 238	AR83.55-P-5310LWK
		Engine 274.9 in model 213 (except 213.050) except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR83.55-P-5310LW
13.2	Remove electrical A/C compressor from engine, place with attached lines to one side and secure against falling down	Engine 274.9 in model 213.050
			AR83.55-P-5311LHV
14	Remove oil pan (3)		AR01.45-P-7500MRD
15	Detach coolant line between charge air cooler and low-temperature cooler from timing case cover (2)
16.1	Remove alternator from engine, place with attached lines to one side and secure against falling down	Engine 274.9 in model 213 (except 213.050) Engine 274.9 in model 238
			AR15.40-P-5032MRD
16.2	Remove electric vacuum pump from engine, place with attached lines to one side and secure against falling down	Engine 274.9 in model 213.050
			AR43.05-P-0001MRD
17.1	Remove electric coolant pump	Engine 274.9 in model 213 (except 213.048/049/148) Engine 274.9 in model 238 (except 238.348/448)
			AR20.10-P-1281MRD
17.2	Remove mechanical coolant pump	Engine 274.9 in model 213.048/049/148 Engine 274.9 in model 238.348/448
			AR20.10-P-1271MRD
18	Remove coolant hose between coolant pump and coolant thermostat	 Hose clamp pliers	*003589033700
19	Remove coolant line	Engine 274.9 in model 213 (except 213.048/049/148) Engine 274.9 in model 238 (except 238.348/448)
			AR20.20-P-7450MRD
20	Remove boost pressure control pressure transducer		AR07.17-P-7004MRD
21	Remove bracket for boost pressure control pressure transducer
22	Release and disconnect electrical connection (7)
23	Push out electrical connection (8) from timing case cover (2)
24	Remove screws (5)
25	Remove oil lines	Engine 274.9 in model 213.048/049/148 Engine 274.9 in model 238.348/448
			AR18.30-P-6850MRD
26	Remove screws of heat exchanger connecting flange, and remove heat exchanger connecting flange	Engine 274.9 in model 213.048/049/148 Engine 274.9 in model 238.348/448
27	Remove screws (1) opposite to the tightening sequence	Bolt plan for timing case cover	AR01.40-P-8000-01MR
28	Remove timing case cover (2)	 Do not hammer in a tool to pry off between timing case cover (2) and cylinder crankcase. The sealing surfaces can be damaged otherwise.
	Install
29	Clean sealing surfaces		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
30	Apply sealant to timing case cover (2)
	Notes on sealant path for timing case cover		AH01.40-P-1000-01MR
		Sealant, Loctite 5970, 50 ml	*BR00.45-Z-1013-01A
		 Application gun	*112589002500
31	Install timing case cover (2)
32	Screw in and tighten screws (1)	Bolt plan for timing case cover	AR01.40-P-8000-01MR
		 Bolt, timing case cover to crankcase	*BA01.40-P-1001-01K
33	Install new cap (4)	When replacing timing case cover (2).
34	Install a new front crankshaft radial shaft sealing ring		AR03.20-P-3004MRD
35	Install heat exchanger connecting flange	Engine 274.9 in model 213.048/049/148 Engine 274.9 in model 238.348/448
		 Screw/bolt, oil cooler connecting flange to timing case/crankcase	*BA18.30-P-1003-01L
36	Install oil lines	Engine 274.9 in model 213.048/049/148 Engine 274.9 in model 238.348/448
			AR18.30-P-6850MRD
37	Screw in screws (5) and tighten them	 Bolt, cylinder head to timing case cover	*BA01.30-P-1002-01Y
38	Pull electrical connection (8) with new sealing ring into timing case cover (2)
39	Connect and lock electrical connector (7)
40	Install bracket for boost pressure control pressure transducer	 M61	*BA00.10-P-1002-04A
41	Install boost pressure control pressure transducer		AR07.17-P-7004MRD
42	Install coolant line	Engine 274.9 in model 213 (except 213.048/049/148) Engine 274.9 in model 238 (except 238.348/448)
			AR20.20-P-7450MRD
43	Install coolant hose between coolant pump and coolant thermostat	 M61	*BA00.10-P-1002-04A
		 Hose clamp pliers	*003589033700
44.1	Install electric coolant pump	Engine 274.9 in model 213 (except 213.048/049/148) Engine 274.9 in model 238 (except 238.348/448)
			AR20.10-P-1281MRD
44.2	Install mechanical coolant pump	Engine 274.9 in model 213.048/049/148 Engine 274.9 in model 238.348/448
			AR20.10-P-1271MRD
45.1	Fasten alternator to engine	Engine 274.9 in model 213 (except 213.050) Engine 274.9 in model 238
			AR15.40-P-5032MRD
45.2	Fasten electrical vacuum pump to engine	Engine 274.9 in model 213.050
			AR43.05-P-0001MRD
46	Fasten coolant line between charge air cooler and low temperature cooler to timing case cover (2)	 M61	*BA00.10-P-1002-04A
47	Install oil pan (3)		AR01.45-P-7500MRD
48.1	Attach A/C compressor to engine	Engine 274.9 in model 213 (except 213.050) Engine 274.9 in model 238
		Engine 274.9 in model 238	AR83.55-P-5310LWK
		Engine 274.9 in model 213 (except 213.050) except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR83.55-P-5310LW
48.2	Attach electrical A/C compressor to engine	Engine 274.9 in model 213.050
			AR83.55-P-5311LHV
49	Install upper guide pulley for poly-V belt	Engine 274.9 in model 213.048/049/148 Engine 274.9 in model 238.348/448
		 Bolt, guide pulley to alternator	*BA13.25-P-1004-01Z
50.1	Install clamping device for poly-V belt	Engine 274.9 in model 213 (except 213.050) Engine 274.9 in model 238
			AR13.25-P-3220MRD
50.2	Screw in screw (6) and tighten	Engine 274.9 in model 213.050
		 Bolt, timing case cover to crankcase	*BA01.40-P-1001-01K
51	Install vibration damper		AR03.30-P-1800MRD
52	Install charge air pipe between charge air cooler and ATL	 M61	*BA00.10-P-1002-04A
53	Install ATL heat shield		AR09.40-P-6036MRD
54	Install air filter housing		AR09.10-P-1150MRD
		 Only install upper engine cover after the leak test.
55	Fill in coolant		AR20.00-P-1142OLC
		 Only install lower engine compartment paneling after leak test.
56	Remove locking clip from vehicle on vehicle lift		AR00.60-P-0100CW
57	Remove holding device of steering wheel	 Retainer device	*129589012100
58	Connect ground line to battery	Engine 274.9 in model 238	AR54.10-P-0003LWO
		Engine 274.9 in model 213	AR54.10-P-0003LW
59	Check engine oil level and correct
			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
60	Perform an engine test run and check engine for proper operation and leak tightness
61	Install lower engine compartment paneling		AR61.20-P-1105LWE
62	Install upper engine cover

 Metric screws/bolts and nuts as per MBN 10 105, 10 143

Number	Designation		8.8	10.9
BA00.10-P-1002-04A	M61	Nm	9	13

 Cylinder head

Number	Designation			Engine 274
BA01.30-P-1002-01Y	Bolt, cylinder head to timing case cover	M8	Nm	20

 Crankcase, timing case cover, end cover

Number	Designation				Engine 274
BA01.40-P-1001-01K	Bolt, timing case cover to crankcase	M6		Nm	9
		M8	Stage 1	Nm	-
			Stage 2	Nm	-
		M10		Nm	58

 Belt tensioning device

Number	Designation		Engine 274
BA13.25-P-1004-01Z	Bolt, guide pulley to alternator	Nm	20

 Oil cooling

Number	Designation		Engine 274.9
BA18.30-P-1003-01L	Screw/bolt, oil cooler connecting flange to timing case/crankcase	Nm	20

003 589 03 37 00

Hose clamp pliers

112 589 00 25 00

Application gun

129 589 01 21 00

Retainer device

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

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