Lubrication System Components

Lubrication system components, assembly overview




1- 15 Nm

2- Sealing flange
Must be located on alignment sleeves
Clean sealing surface before installing
Insert with silicone sealant D 176 404 A2
Removing and installing refer to Sealing Flange, Belt Pulley Side Service and Repair

3- Chain tensioner with tensioning rail, 15 Nm
Check for wear
When installing, pretension spring and install

4- Chain sprocket
For oil pump drive
Check for wear

5- Cylinder block
Removing and installing crankshaft, refer to Crankshaft Crankshaft
Piston and connecting rod, disassembling and assembling, refer to Pistons and Connecting Rods, Assemby Overview Piston or Connecting Rod

6- Oil dipstick
Oil level must not be above max. mark!

7- Inlet spout
For oil dipstick
For extracting oil

8- Guide tube

9- Oil spray jet
For piston cooling

10- Pressure relief valve, 27 Nm
Opening pressure 1.3 to 1.6 bar positive pressure

11- 15 Nm

12- Suction pipe
Clean strainer is dirty

13- O-ring
Replace

14- Splash wall

15- 15 Nm
Loosen and tighten with T-bat and socket 10mm -3185-
Remove with Socket -3249-

16- Oil pan
Clean sealing surface before installing
Insert with silicone sealant D 176 404 A2

17- Oil drain plug, 30 Nm
If sealing ring is leaking, cut open and replace

18- Gasket
Replace

19- Oil return pipe
From turbocharger

20- 10 Nm

21- Oil pump
With pressure relief valve 12 bar
Before installing, check to be sure both alignment bushings are present (for centering oil pump/cylinder block)
Replace if contact surfaces and gears are scored

22- Chain sprocket
For oil pump
Check for wear

23- 25 Nm

24- Roller chain
Mark direction of rotation before removing
Check for wear

25- Alignment sleeves
Check for secure seat





Markings on oil dipstick
1- Max. mark
2- Min. mark
a - Area above hatched field up to Max. mark: Do not replenish with engine oil!
b - Oil level within hatched field: Can be replenished with engine oil
c - Area from Min. mark up to hatched field: Replenish with max. 0.5 ltr. of engine oil!

Part II





1- Locking bolt, 40 Nm
2- Seal
If sealing ring is leaking cut open and replace.
3- Spring
For pressure relief valve, approx. 4 bar
4- Piston
For pressure relief valve, approx. 4 bar
5- Gasket
Replace
6- Return flow check valve, 8 Nm
7- Seal
Slide up to collar of tube
Replace if damaged
8- Connecting pipe
For crankcase ventilation
9- Retaining clip
10- Locking bolt, 15 Nm
11- Seal
If sealing ring is leaking cut open and replace.
12- 20 Nm
13- Oil supply pipe
To turbocharger
14- Banjo bolt, 30 Nm
15- Gasket
Replace
16- 1.4 bar Oil Pressure Switch F1, 25 Nm
Black
17- Seal
If sealing ring is leaking cut open and replace.
18- 15 Nm plus an additional 1/4 turn (90°)
Replace
19- Gasket
Replace
Snaps into tabs of oil cooler
20- Oil filter element
21- 25 Nm
22- Oil cooler
Coat contact surfaces to oil filter bracket outside seal with sealant AMV 188 100 02.
23- Oil filter bracket
With pressure relief valve, approx. 4 bar