Remove/install timing case cover

AR01.40-D-8000NG

Remove/install timing case cover

2.3.10

 

Remove/install

1

Remove fan shroud

AR20.40-D-6800NG

2

Remove oil pan

AR01.45-D-7500NG

3

Open hose clamp (8, 9), unfasten charge air pipe (7) on underfloor and take off

4

Lower engine on the engine mount and screw in engine mount bolts

5

Remove engine hoist

AR33.10-D-0100-01NG



*639589006100



*906589016100

6

Remove poly-V belt

AR13.22-D-1202NG

7

Remove front cover at cylinder head

AR01.30-D-5700NG

8

Place piston on cylinder 1 to top dead center (OT) of the work cycle (ignition TDC)

 The TDC marking on the belt pulley with vibration damper (5) must align with the positioning edge on timing case cover (1) (arrow). The cams of the inlet camshaft and the exhaust camshaft at cylinder 1 must be positioned up at an angle.

AR01.10-D-6992-01NG

 Installation: Inspect basic position of camshafts.

AR05.20-D-6010NG

9

Detach belt pulley of coolant pump (6)



*906589004000

10.1

Remove refrigerant compressor and hang up to the side with connected lines

For vehicles with code (HH9) Regulated air conditioning, (Tempmatic)

AR83.55-D-5300NG

10.2

Remove guide pulley (2)

For vehicles without code (HH9) Regulated air conditioning, (Tempmatic)

11

Remove chain tensioner

AR05.10-D-7800NG

12

Remove center bolt on belt pulley with vibration damper (5) and belt pulley with vibration damper (5)



*271589004000



*BA03.30-N-1001-01S

13

Unscrew bolt (3) from intake muffler (4)



*BA09.50-N-1004-01A

14

Remove power steering pump on cylinder head and hang up to the side with attached hoses

AR46.30-D-0500NG

15

Remove screw/bolts (11, 12) and push supercharger (10) away a little with attached electrical line from engine

 Push supercharger (10) away a little in order to avoid damage on supercharger (10) and the electrical line.



*BA09.50-N-1001-01A



*BA09.50-N-1002-01A

16

Pull out guide rail pins at cylinder head

AR01.30-D-5800-04NG



*102589003400



*116589203300

17

Remove cylinder head at timing case cover (1) bolts (13)



*001589810900



*BA01.30-N-1002-01T

18

Remove timing case cover (1) bolts

 Installation: Observe bolt plan for timing case cover (1).

AR01.40-P-8000-01QK



*BA01.40-N-1001-01V

19

Detach timing case cover (1) from cylinder crankcase and take off

 Push supercharger (10) away a little in order to avoid damage on supercharger (10) and the electrical line.

 Warm sealing mass for timing case cover (1) using a heat gun and then pry off the timing case cover (1) carefully.

An assistant is necessary to press away the supercharger (10).

Catch coolant with suitable vessel.

Remove coolant residue immediately.

Hot-air gun

gotis://K_60-65_11.0

 Installation: Install new sealing rings (17, 18).

An assistant is necessary to press away the supercharger (10).

Clean sealing surfaces on crankcase and on timing case cover (1). Coat sealing surface on the timing case cover (1) with sealant.



*112589002500

Loctite sealant 5970

*BR00.45-Z-1013-01A



Note on sealant path for timing case cover

AH01.40-P-1000-01TK

20

Replace crankshaft radial sealing ring (15)

AR03.20-D-3000NG

21

Remove bolts and coolant pump (14)

 When replacing timing case cover (1).

Catch coolant with suitable vessel.

 Installation: Clean sealing surface on the coolant pump (14) and timing case cover (1).

Replace gasket.

22

Remove bolt and poly-V belt tensioning device (16)

When replacing timing case cover (1).

The bolt is located on reverse side of timing case cover (1).



*BA13.25-N-1001-01T

23

Install in the reverse order

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

24

Perform an engine test run and check the engine for leaks in the area of the timing case cover (1)

Number

Designation

Engine
271 in model 906

BA01.30-N-1002-01T

Bolt, cylinder head to timing case cover

M8

Nm

20

Number

Designation

Engine
271
in model 906

BA01.40-N-1001-01V

Bolt, timing case cover to cylinder crankcase

M8

Nm

20

Number

Designation

Engine
271, in model 906

BA03.30-N-1001-01S

Central bolt for vibration damper

10.9

Stage 1

Nm

200

Stage 2

°

180

Number

Designation

Engine
271
in model 906

BA09.50-N-1001-01A

Bolt, compressor to timing case cover

M8

Nm

20

BA09.50-N-1002-01A

Bolt, supercharger to engine support

M8

Nm

20

BA09.50-N-1004-01A

Bolt, intake muffler to oil filter housing

M6

Nm

11

Number

Designation

Engine 271

BA13.25-N-1001-01T

Bolts attaching belt tensioner to timing case cover

Nm

58

Number

Designation

Order number

BR00.45-Z-1013-01A

Loctite sealant 5970

A 003 989 98 20