Engine code BBW, assembly overview : Notes

1 - 15 Nm 

2 - Sealing flange 

• Must be located on dowel sleeves
• Insert with silicone sealant D 176 404 A2. Refer to Front sealing flange, removing and installing 
• Removing and installing. Refer to Front sealing flange, removing and installing 
• Replacing crankshaft oil seal, poly V-belt pulley end. Refer to Crankshaft oil seal - belt pulley end, replacing 

3 - Chain tensioner with tensioning rail, 15 Nm 

• When installing, pretension spring first

4 - Dipstick 

• Oil level must not exceed Max. mark!
• Markings. See Figure .

5 - Dipstick guide 

• Fastened to intake manifold
• Pull off to extract oil

6 - Guide tube 

7 - Oil spray jet 

• For piston cooling

8 - Pressure relief valve, 27 Nm 

9 - 15 Nm 

10 - Suction line 

• See Parts catalog
• Clean strainer if dirty

11 - O-ring 

• Always replace

12 - Baffle plate 

13 - Rubber bushing 

• On cylinder block
• Replace if damaged

14 - Sleeves 

15 - Oil pan guard 

16 - 37 Nm 

17 - Rivet spreader 

• With spreader pin

18 - Seal 

• Always replace

19 - Oil drain plug, 30 Nm 

20 - Oil pan 

• Clean sealing surface before installing
• Insert with silicone sealant D 176 404 A2. Refer to Oil pan, removing and installing 
• Removing and installing. Refer to Oil pan, removing and installing 

21 - 20 Nm 

• Use counter support T10051 to loosen and tighten

22 - Chain sprocket for oil pump 

• Observe installation position

23 - Oil pump 

• With pressure relief valve of 12 bar
• Before installing, check that both dowel sleeves for centralizing oil pump/cylinder block are installed
• Replace if contact surfaces and gears are scored
• Removing and installing. Refer to Oil pump, removing and installing 

24 - Chain 

25 - Adjustment bushings