Mercedes-Benz ML320. Service manual - part 438

 

  Index      Mercedes     Mercedes-Benz ML320 - service and repair manual 1997-2005 year

 

Search            copyright infringement  

 

 

 

 

 

 

 



 

 

Content   ..  436  437  438  439   ..

 

 

Mercedes-Benz ML320. Service manual - part 438

 

 

Model 220 with engine 
112, 113 
Model 230 with engine 
112, 113
Model 240 with engine 
285

AP15.10-P-1580H

Model 463 with Engine 
112, 113

AP15.10-P-1580GA

2.1

Remove bottom engine 
compartment paneling

Model 240

AR61.20-P-1105H

3

Position piston of cylinder 
to be inspected to BDC

To do this, crank the 
engine at the central bolt of 
the crankshaft in the 
direction of rotation of the 
engine: ? 
Firing order

AR01.00-P-1300-03HA

4

Connect cylinder 
inspection lamp (05) and 
insert the flexible test 
probe for the inspection 
lamp via the spark plug 
bore into the respective 
cylinder

 Cylinder inspection 

equipment

*WH58.30-Z-1014-05A

 Flexible inspection light *WH58.30-Z-1006-05A

 Flexible inspection light *WH58.30-Z-1007-05A

 

Check 

 

 

5

Inspect cylinder walls

 Normal condition: 

Mat-grey surface, no 
honing pattern. 
If the condition of the 
cylinder wall is not clearly 
recognizable: ?

 

Model 129, 163, 170, 202, 
203, 208, 209, 210, 
215,220,230,463

 

Remove cylinder head

 

Model 129 with engine 
112, 113

AR01.30-P-5800B

Model 202, 208, 210 with 
engine 113

 

Model 163 with engine 
112, 113

AR01.30-P-5800MV

Model 170, 202, 208, 210 
with engine 112

AR01.30-P-5800BA

Model 220 with engine 
112, 113 
Model 230 with engine 

 

 

2001 Mercedes-Benz ML320 

1998-2005 ENGINE Complete engine - 163 Chassis

  

me 

 

Commercially available tools 

TESTING COMPRESSION PRESSURE - AR01.00-P-1200B 

ENGINE 112  

Air filter positioned at vehicle side.  

ENGINE 113  

Air filter positioned at vehicle side.  

113
Model 203 with engine 
112, 113 except 203.764

AR01.30-P-5800PV

Model 209 with engine 
112, 113

 

Type 203.764 
Model 215, 220 with 
engine 137

AR01.30-P-5800L

Model 215, 220 with 
engines 275.950/ 980

AR01.30-P-5800M

Model 230 with engine 
275.951

 

Model 463 with Engine 
112, 113

AR01.30-P-5800GV

Model 240

AR01.10-P-2400H

Remove engine

 

 

General information on 
inspecting cylinder walls

Engine 112, 113, 134, 135, 
137, 166, 275, 285, 611, 
612, 613, 628, 639, 646, 
647, 648

AH01.00-P-0300-01A

6

Inspect the remaining 
cylinders following the 
same procedure

 

 

7

Install in the reverse order  

 

Number

Designation

WH58.30-Z-
1006-05A

Flexible endoscope, package contents 1 (complete unit), Firma Richard Wolf GmbH D-
75438 Knittlingen Firma Karl Storz GmbH D-78532 Tuttlingen

WH58.30-Z-
1007-05A

Flexible endoscope package contents 2 (for workshops which already have an approved 
endoscope from the Wolf or Storz company), Firma Richard Wolf GmbH D-75438 
Knittlingen Firma Karl Storz GmbH D-78532 Tuttlingen

WH58.30-Z-
1014-05A

Cylinder inspection equipment

 

2001 Mercedes-Benz ML320 

1998-2005 ENGINE Complete engine - 163 Chassis

  

me 

 

Fig. 18: Identifying Compression Recorder Assembly 

 

 

Remove/install

 

 

 

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 running 
engine

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

AS00.00-Z-0005-01A 

1

Bring engine to operating 
temperature (approx. 80°
C)

  

Only test compression 
when engine is at 
operating temperature.

 

2

Remove engine trim 
panel

 

 

3

Remove air filter housing  

 

4

Remove resonance pipe 
with resonance body

  

All except model 163 
with engine 113.942/981.

Disconnect plug 

AR07.07-P-1454A 

 

2001 Mercedes-Benz ML320 

1998-2005 ENGINE Complete engine - 163 Chassis

  

me 

 

connection for hot 
film mass air flow 
sensor (HFM-SFI) 
for this step and  

unbolt resonance 
pipe at cylinder 
head cover.  

 

  

The resonance pipe is 
attached to the rear of the 
intake manifold with a 
plastic bracket. 

  

Do not damage plastic 
plate.

5

Remove spark plugs

Remove only one spark 
plug at each cylinder: ?

 

 

 

Models 210, 208, 202 
with engine 112 
Model 210 with engine 
113

AP15.10-P-1580A

 

 

Model 163 with engines 
112, 113

AP15.10-P-1580GH 

6

Crank engine with starter.

Do not crank engine at 

steering lock but use 
contact switch of the 
compression recorder. 

 Crank engine several 

times with the starter in 
order to eliminate 
combustion residues in 
the cylinder.

AR01.10-P-0110V

 

Checking 

 

 

7

Insert compression tester 
into spark plug bore

 

Fig. 21

8

Open throttle valve

 

 

9

Crank engine with starter

Do not crank engine at 

steering lock but use 
contact switch of the 
compression recorder. 

 To check the 

compression pressure, 
crank the engine by at 

AR01.10-P-0110V

 

2001 Mercedes-Benz ML320 

1998-2005 ENGINE Complete engine - 163 Chassis

  

me 

 

 

 

 

 

 

 

 

Content   ..  436  437  438  439   ..