Mercedes-Benz ML320. Service manual - part 405

 

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Mercedes-Benz ML320. Service manual - part 405

 

 

Fig. 8: Identifying Hydraulic Valve Clearance Compensation Element Components - Shown On Engine 
112 In Model 210
 

Shown on engine 112 in model 210  

 
 

Remove/Install  

 

1

Remove cylinder 
head covers with 
ignition coils (6)

Air cleaner mounted on vehicle.

AR01.20-
P-5014B
 

Air cleaner positioned at engine side.

AR01.20-
P-
5014BV
 

2

Position 
crankshaft to 0° 
after ignition 
TDC of cylinder 
1

 The engine must not be turned back; otherwise the chain can get 

jammed.

AR05.10-
P-6858V

Model 129, 
463.206/209/232/233/240/241/243/244/245/246/247/248/249/250/254, 
Model 163 except 163.174/175, Model 202, 208, 210 with engine 113

AR05.10-
P-7800C

Model 163.174/175, Model 209 with engine 113.987 up to 23.4.04, 

AR05.10-

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

CHECK THE ENGINE VALVE TIMING - AR05.10-P-6858V 

ENGINE 112  

ENGINE 113.962 in MODEL 463.206 /240 /241 /247 /248 /249 /254  

ENGINE 113.982 in MODEL 463.243/246  

ENGINE 113 (except 113.995) in MODEL 129, 163, 202, 203, 208, 209, 210, 211, 215, 220, 230

3

Remove chain 
tensioner (5)

Model 209 with engine 113.968 
Model 170, 202, 203, 208, 209, 210 with Engine 112

P-
7800CA

Model 203 with engine 113.988 
Model 209 with engine 113.987 as of 24.4.04

AR05.10-
P-
7800AC

Model 211, 215, 220, 230

AR05.10-
P-
7800AM

4

Detach left 
camshaft bearing 
bridge (7) and 
right camshaft 
bearing bridge 
(8)

Engine 112, 113 except cylinder shutoff, code 479.

AR05.20-
P-
7103AU

Engine 113.960 with cylinder shutoff, code 479.

AR05.20-
P-
7103AV

 Installation: 

AR05.10-
P-6858V

Check basic position of camshafts, if required: ? Set the basic position of 
camshafts

AR05.20-
P-
6020AU

5

Use a 2 mm drift 
to press 
compensation 
element (11) of 
the relevant 
cylinder out of 
the roller rocker 
arms (9)

 Do not use a magnet! 

The slide surface of the compensation element (11) would get 
magnetized. This can cause minute iron chips to accumulate, which in 
turn can damage the compensation element (11) and the cam. 

 Installation: The small plate at the top of the roller-type rocker arm 

must point to the compensation element with the slits facing downwards 
(11). Compensation elements which have not been replaced, must be 
reinstalled at the same point.

 

6

Install in the 
reverse order

 

 

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

Fig. 9: Identifying Engine Valve Timing, Pin On Crankcase - Shown On Engine 112 

Shown on engine 112  

Inspect basic position of balancing shaft only engine 112  

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

Fig. 10: Locating Notch In Balancing Weight, Pin On Crankcase

 
  Remove/install  

1

Remove 
cylinder head 
covers

Air filter located at vehicle side.

Air filter located on engine side.

2.1 Unbolt 

combination 
valve (on right)

 Only for engines with air pump.
 Installation: Replace Gasket of combination valve.

 

  Checking 

 

3

Inspect timing Engine 112.910/911/912/920/921/922/923/940/941/942/942/944/945/946/947/949, Engine 

113.940/941/942/943944/960//961/962/963/965/967/968/980/981/982/984/987/990/991/992
Engine 113.960 with cylinder shutoff code 479 see: ?
Inlet

Outlet

  Camshaft code 

number and 
assignment

Engine 112, 113

4

Position engine 
to 40° after 
ignition TDC 
of cylinder 1

 Rotate engine at crankshaft in direction of rotation until 40° marking on belt 

pulley/vibration damper is aligned with marking on timing case cover. Slots at camshafts 
must be pointing in direction of inner V. 

 The engine must not be turned back; otherwise the timing chain can get jammed.

5

Check basic 
position of 
camshafts

 Place locating plate for right camshaft (2) flush onto the right cylinder head and insert 

into the groove in the camshaft (6). Proceed the same way with the left-hand camshaft in the
left-hand cylinder head.

 
 

If both locating plates cannot be inserted into the grooves: ?
Set the basic position of camshafts.

6.1 Inspect basic 

position of the 
balancing shaft

Only for Engine 112, see figure. 

 The markings of the pin at front crankcase (A) and the notch in the correctional weight 

(B) on the front end of the correctional weight point to each other. The two scribe marks can
be seen through the left timing case duct at a depth of about 22 cm from the cylinder head 
cover joint surface.

7

Install in the 

 

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

 

 

 

 

 

 

 

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