Cylinder Block Assembly: Description and Operation

Engine Valley Components Overview


• The upper bearing bracket is bolted to cylinder with two M8 multipoint bolts, which are found in the valley between the cylinder heads. These bolts must not be loosened under any circumstances, because it causes a deformation of the cylinder block which is no longer reparable.

• The crankshaft, piston, and connecting rods must not be replaced! Only removal and installation of these components is permitted.

• If large quantities of metal particles or other deposits (caused, for example, by a partial seizure of the crankshaft or connecting rod damage) are found in the engine oil, the oil passages must be cleaned thoroughly and the oil cooler replaced in order to prevent further damage from occurring.

• The engine must not be set down on the oil pan, because the seal between lower and upper oil pans is otherwise damaged. To set down the engine, use the frame support (T10191).

• Secure the engine in the engine and transmission holder (VAS 6095) when working on it.






1 Input Hub

2 Bolt

• 8 Nm

3 Clutch

• Torsion elastic clutch, running change.

4 Bolt

• 50 Nm + 90° (1/4) additional turn.

• Always replace

5 Bolt

• 20 Nm

6 Generator


7 Oil Filter Housing, Upper Section

8 Coolant Connection

• With the engine coolant temperature sensor (G62)

• Removing and installing, refer to => [ Coolant Connection ] Coolant Connection.

9 Gasket

• Always replace

10 Seal

• Always replace

11 Bolt

• 20 Nm + 90° (1/4) additional turn

• Always replace

12 Oil Filter Housing, Lower Section

• Oil filter housing overview. Refer to => [ Oil Filter Housing Overview ] Description and Operation.

• With the coolant thermostat housing overview. Refer to => [ Coolant Thermostat Housing Overview ] Description and Operation.

13 Cover

14 Noise Insulation

• Installation is not necessary

15 Bypass Flap with Cooler for Exhaust Gas Recirculation (EGR)

• On vehicles with engine code BWF only.

• Assembly overview, refer to => [ Bypass Flap with Cooler for EGR ] Bypass Flap with Cooler for EGR.

16 Fuel Filter

• For vehicles with engine code BKW only.

• Assembly overview, refer to => [ Fuel Filter Overview ] Description and Operation.

17 Alignment Bushing

• Secure with commercially available grease, if necessary, before installation.