Engine Body, Exposing

Engine body, exposing

Special tools:
998 9721 SCREW SET 998 9721 Screw Set
999 2520 FLOOR STAND 999 2520 Floor Stand
999 5112 GEAR SECTOR 999 5112 Gear Sector
999 5297 ENGINE FIXTURE 999 5297 Engine Fixture

Note! The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the essential information in the illustrations is always correct.

Removal

Removing the gearbox

Hint: Suitably, loosen the lower hard-to-reach screws in the transmission/engine before the engine/transmission unit is placed on a suitable surface.
Relieve the transmission. Loose the remaining screws and carefully remove the transmission.
Remove the clutch according to: Clutch disc and pressure plate, B5254T7, M66 Service and Repair.

Removing flywheel and carrier plate




Remove the impulse sensor.
Install: 999 5112 GEAR SECTOR 999 5112 Gear Sector
Remove all screws except the top screw which holds the flywheel to the crankshaft. Loose the top screw and leave it in place, screwed in a few revolutions.
Carefully wiggle loose the flywheel and the carrier plate. It is suitable to use 2 screwdrivers. Fit these between the engine block and the flywheel/carrier plate.
Hold the flywheel and carrier plate, and screw out the last screw.

Transferring engine

Installing engine in stand
Use: 999 2520 FLOOR STAND 999 2520 Floor Stand , 999 5297 ENGINE FIXTURE 999 5297 Engine Fixture and 998 9721 SCREW SET 998 9721 Screw Set
Drain the engine oil.

Removal

Exposing the engine





Remove:
- the oil delivery pipe and the coolant pipe (at the outlet to the turbo)
- the oil delivery pipe and coolant pipe (at the inlet to the turbo)
- the exhaust manifold including turbo with control hoses and valves
- the coolant pipe (at the inlet to the water pump) including hoses. The hoses are parted at the oil cooler
- the oil cooler and the rubber seals
- the lifting eyes
- upper and front timing gear casing as well as the cover over the ignition coils.

Exposing the engine, continued





Remove:
- the alternator, alternator bracket and auxiliary unit bracket
- the intake pipe
- the dipstick tube
- the knock sensors
- the thermostat housing with the coolant hose
- the crankcase ventilation hose
- complete engine cable harness
- the oil filter housing
- the ignition coils
- the camshaft sensor
- the oil filler cap and the VVT-unit's control valves.