Remove/install timing case cover - AR01.40-P-8000MCU

ENGINES 132.910 in MODEL 451.3/4 

Fig 1: Identifying Timing Case Cover Remove/Install Components (1 Of 3)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Timing Case Cover Remove/Install Components (2 Of 3)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Timing Case Cover Remove/Install Components (3 Of 3)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury  to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning  caused by 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
	Notes on coolant		AH20.00-N-2080-01A
1	Remove service flap
2	Turn cap for coolant expansion reservoir half a revolution counterclockwise, release excess pressure, and take off the cooling system cap
3	Remove interior flap above engine		AR88.40-P-1100-03MCC
4	Disconnect ground line of battery		AR54.10-P-0003MCC
5	Remove fender liner in right rear fender		AR88.10-P-1400MCU
6	Lower rear drive module		AR01.00-P-3050MCU
7	Drain coolant		AR20.00-P-1142MCU
8	Remove poly-V belt tensioning device		AR13.25-P-3200MCU
9	Remove belt pulley for crankshaft		AR03.30-P-1700MCU
10	Remove oil pan	Remove front engine mount carrier (2) together with torque support (3). For this, unscrew the bolt of the torque support (3) on the frame-type integral support (4).	AR01.45-P-7500MCU
			*BA22.10-P-1010-01M
11	Reinstall front engine mount carrier (2) together with the torque support (3).	On order to support the engine during the work procedure.
12	Remove cylinder head cover		AR01.20-P-5014MCU
13	Lower vehicle with vehicle lift
14	Undo screw/bolt (5) and remove bracket (6)
15	Fix retaining plate in place on cylinder head (7) using a bolt (5), attach support braces to engine using an engine lifting device and support engine using an engine lifting device and appropriate chain via the retaining plate on the cylinder head (7)		Fig 4
		Engine support device, engine hoist	Figure
16	Remove screw/bolt (8, 9) and right engine mount (10)		*BA22.10-P-1006-01M
			*BA22.10-P-1007-01M
17	Remove screw/bolt (11) and loosen alternator (G2) from timing case cover (1) and fix in place at a suitable location using a cable tie		*BA15.40-P-1008-01G
18	Raise vehicle with vehicle lift
19	Disconnect electrical connector (12) at oil pressure switch (S41/1)
20	Remove bolt (13) as well as ground (14) line for engine ground
21	Unscrew screw/bolt (15)
22	Remove screw/bolt (16) and lay electrical wiring harness (17) to the side		*BA01.40-P-1007-01M
23	Remove refrigerant compressor and fix at a suitable location using a cable tie	On vehicles with code (I01) Air conditioning Plus	AR83.55-P-5300-04MCU
		: Only attach refrigerant compressor after installing the oil pan.	*BA83.55-P-1001-01V
			*BA83.55-P-1002-01V
24	Remove screw/bolt (18, 19), detach timing case cover (1) using a tool from cylinder crankcase and remove downwards	: Clean sealing surface on timing case cover (1) and on cylinder crankcase, replace seal ring (20) on timing case cover (1) and seal ring on coolant feed line. Before installing the timing case cover (1), screw guide for crankshaft radial sealing ring (21) into the threaded hole for crankshaft and align the drive for oil pump in timing case cover (1) according the position of the crankshaft. Pay attention to different bolt lengths (18, 19).	AR01.40-P-8000-01MCC
			*BA01.40-P-1007-01M
			Fig 6
		Sealant	*BR00.45-Z-1053-01A
	Notes on sealant path for timing case cover		AH01.40-P-1000-01MCC
25	Lever crankshaft radial sealant ring (21) out of timing case cover (1) using a suitable tool	Ensure that timing case cover (1) is not damage otherwise it must be replaced. : The crankshaft radial sealing ring (21) must be installed dry and lock flush with the timing case cover (1).	Fig 7
26	Detach the coolant pump (22) from the timing case cover (1)	When replacing timing case cover (1). Replace gasket of coolant pump (22).	*BA20.10-P-1007-01J
27	Remove oil pressure switch (S41/1) from timing case cover (1)	When replacing timing case cover (1).	*BA18.40-P-1002-01G
28	Install in the reverse order

CYLINDER CRANKCASE, TIMING CASE COVER, END COVER

Number	Designation			ENGINE 132.9
BA01.40-P-1007-01M	Bolt, timing case cover to crankcase/cylinder head	M6	Nm	10
		M8	Nm	23

BELT TENSIONING DEVICE

Number	Designation		Engine 132.9
BA13.25-P-1003-01K	Bolt, poly-V belt tensioning device to timing case cover	Nm	49

ALTERNATOR

Number	Designation		ENGINE 132.9
BA15.40-P-1008-01G	Bolt, alternator to timing case cover	Nm	23

OIL LEVEL/OIL PRESSURE SENSOR

Number	Designation		ENGINE 132.9
BA18.40-P-1002-01G	Oil pressure sensor to timing case cover	Nm	10

COOLANT PUMP, COOLANT THERMOSTAT

Number	Designation			ENGINE 132.9
BA20.10-P-1007-01J	Bolt, coolant pump to timing case cover	M6	Nm	10
		M8	Nm	23

ENGINE MOUNTS, ENGINE SUPPORTS

Number	Designation		ENGINE 132.9
BA22.10-P-1006-01M	Bolt, right engine mount to frame-type integral support	Nm	56
BA22.10-P-1007-01M	Bolt, right engine mount to timing case cover	Nm	80
BA22.10-P-1010-01M	Bolt, torque support to frame-type integral support	Nm	115

REFRIGERANT COMPRESSOR

Number	Designation		ENGINE 132.9
BA83.55-P-1001-01V	Bolt, refrigerant compressor to cylinder crankcase	Nm	20
BA83.55-P-1002-01V	Bolt, AC compressor to oil pan	Nm	20

Fig 4: Identifying Support Braces (451 589 01 62 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Retaining Plates (451 589 02 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 6: Identifying Guide (451 589 03 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 7: Identifying Drift (711 589 13 15 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1053-01A	Sealant	Q0000282V000000000