AR01.10-A-2401A | Remove/install engine with transmission | 14.2.12 |
ENGINES 457.939 /945 /946 /949 in MODEL NAB372.124
ENGINES 457.939 /945 in MODEL NAB372.317
A01.10-0001-06
Illustrated on model 372.317
1 Bumper
2 End crossmember
3 Vent hose
4 Charge air pipe
5 Oil separator vent hose
6 Intake hose
7 Intake hose
8 Compressed-air line
12 Calmer
13 Fuel line
14 Fuel line
21 Generator
A Poly-V-belt
B V-belt
C V-belt
A09.40-0005-01
Illustrated on model 372.317
9 Bottom charge air pipe
10 Turbine housing
11 Clip
15 Air line
16 Air line
17 Ground strap
A01.20-0002-01
A25.20-0002-01
Illustrated on model 372.317
18 Clutch servo assistance
19 Transmission
20 Exhaust flange
A49.10-0001-01
A22.10-0001-01
Illustrated on model 372.317
22 Engine holder at the rear
23 Engine mount
24 Screw
25 Transmission bracket
26 Transmission mount
27 Screw
A22.00-0003-01
| Remove/install | ||
Danger! | Danger of injury to eyes caused by steering oil emerging at high pressure. Danger of poisoning caused by swallowing steering oil | Unscrew end limit screws a maximum of 5 turns. Wear safety glasses. | |
Danger! | 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. | |
1 | Open left rear maintenance flap | ||
Danger! | Risk of explosion caused by escaping oxyhydrogen gas. Risk of injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries caused by short circuit. Risk of poisoning caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices | No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards. Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground. Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers. | |
2 | Disconnect ground line from battery | ||
3 | Open maintenance flap at rear right | ||
4 | Open maintenance flap in vehicle interior above engine | ||
5 | Open maintenance flap in vehicle interior above transmission | ||
6 | Open engine compartment flap | Installation: Only close engine compartment flap after checking or correcting the coolant level. | |
7 | Remove bumper (1) | ||
8 | Remove end crossmember (2) | ||
9 | Remove V-belt (B, C) | ||
10 | Remove poly-V belt (A) | ||
11 | Drain coolant | ||
| Replace coolant | ||
| Notes on coolant | All engines | |
12 | Remove all coolant hoses to engine | Only remove coolant hoses and associated cooling water pipes sufficiently to be able to remove from engine and transmission (19). Remove holder from coolant hoses and coolant pipes if necessary. | |
13 | Remove all coolant hoses to intarder | Only remove coolant hoses and associated cooling water pipes sufficiently to be able to remove from engine and transmission (19). Remove holder from coolant hoses and coolant pipes if necessary. | |
14 | Detach aeration hose (3) from alternator (21) | ||
15 | Remove charge air pipe (4) | ||
16 | Remove vent hose from oil separator (5) on intake hose (7) | ||
17 | Remove intake hose (6) for compressor on intake hose (7) | ||
18 | Remove intake hose (7) | ||
19 | Remove compressed-air line (8) | ||
20 | Remove calmer (12) from holder | ||
21 | Remove bottom charge air pipe (9) | To do this remove cover next to the lower charge air pipe (9). | |
22 | Twist turbine housing (10) on the fresh air side downwards | To do this loosen clamp (11) and twist turbine housing (10) carefully downwards. | |
23 | Remove vehicle wiring harness on MR/PLD control unit | Installation: Use new cable ties. Ensure rubbing-free routing of vehicle wiring harness. | |
24 | Remove suction line for power steering to hydraulic pump | Collect steering oil which runs out in a suitable container. | |
25 | Remove pressure line for power steering to hydraulic pump | Collect steering oil which runs out in a suitable container. | |
26 | Disconnect fuel line (14) at fuel prefilter | Installation: Replace sealing rings. | |
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Torque tool kit | |||
27 | Disconnect fuel line (13) at fuel main filter | Installation: Replace sealing rings. | |
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Torque tool kit | |||
Torque tool kit | |||
28 | Remove air line (15) at constant throttle line | Air line (15) is reachable through engine maintenance flap in the vehicle interior. | |
29 | Remove air line (16) on engine brake actuation cylinder | Only perform on model 372.317. | |
30 | Remove ground strap (17) from body | Ground strap (17) is reachable through engine maintenance flap in the vehicle interior. | |
31 | Detach electric wiring harness at starter | ||
Torque tool kit | |||
32 | Remove cross strut under engine from substructure | ||
33 | Disconnect exhaust at exhaust flange (20) | Check seal for wear and replace if necessary. | |
| Notes on self-locking nuts and bolts | All models | |
34 | Remove propeller shaft | ||
35 | Detach clutch booster (18) from transmission (19) | Only for a version with manual transmission. Do not disconnect hydraulic lines on clutch booster (18). | |
36 | Disconnect all electrical and pneumatic connection on transmission (19) | ||
37 | Detach gearshift linkage from transmission (19) | Only for a version with manual transmission. | |
38 | Remove alternator (21) | Do not remove the electrical wiring harness from the alternator (21). Position the alternator (21) in such a way that unhindered removal of the engine and transmission (19) is possible. | |
39 | Place a major assembly lifter underneath | Place engine with transmission (19) on major assembly lifter in such a way that the engine with transmission (19) takes a secure and stabile position and cannot tip over in a removed condition. | |
Engine support device, engine hoist | |||
40 | Detach engine holder at rear (22) from engine mount (23) | Start by removing bolts (24). | |
41 | Detach transmission holder (25) from transmission bearing (26) | Start by removing bolts (27). | |
42 | Remove engine mount (23) from vehicle frame | To do this raise engine with transmission (19) slightly using the major assembly lifter. | |
Engine support device, engine hoist | |||
43 | Move engine with transmission (19) to the rear | ||
44 | Install in the reverse order | ||
45 | Pour in coolant | Use new coolant. | |
| Replace coolant | ||
46 | Fill power steering | Use new steering oil. | |
| Power steering - checking and correcting oil level | ||
47 | Check engine oil level, correct if necessary | ||
| Engine oil and filter change | ||
48 | Conduct a road test | Check function and leaktightness of major assemblies and their connections. |
Starter
Fuel pipes/hoses
Referenced documents
- ah0000n000101a Notes on self-locking nuts and bolts
- ah2000n208001a Notes on coolant
- ap1800a0101a Engine oil and filter change
- ap2000a2080a Replace coolant
- ap4600a4611a Check and correct power steering fluid level
- ar0715a1628a Removing/installing the MR/PLD control unit
- ar0941a1311a Remove/install charge air pipe
- ar0941a1316a Remove/install left bottom charge air pipe
- ar1321a0100a Remove, install V-belt
- ar1322a1202a Remove/install poly V-belt
- ar1530a7100a Remove/install starter
- ar1540a5032a Remove/install alternator
- ar4110a0050a Remove/install propeller shaft
- ar4720a1070a Remove/install main fuel filter
- ar4720a1080a Remove/install fuel prefilter
- as2000z000101a Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.
- as4600z000101a Danger of injury to eyes caused by steering oil emerging at high pressure. Danger of poisoning caused by swallowing steering oil
- as5410z000101a Risk of fire/risk of explosion due to short circuit and escaping oxyhydrogen gas. Risk of (burn) injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte/mist, short circuit and arcing. Risk of