Mercedes-Benz ML320. Service manual - part 448

 

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Mercedes-Benz ML320. Service manual - part 448

 

 

Fig. 59: Identifying Cylinder Head Cover Remove/Install Component - Shown On Engine 112.945 

 

 

Remove/install 

 

 

1.1

Remove engine trim panel 
with integrated air filter 
(1)

 Unclip covering on front side 

of engine. Remove air filter by 
pulling vertically up and off the 
cylinder head covers.

 

1.2

Remove air filter

Model 170.466 
Model 203.065/265, 
Model 211.076/276, 
Models 215.374, 220.074/174, 
Model 230.474

AR09.10-P-1150SVK

2.1

Unscrew the guide tube of 
the automatic 
transmission oil dipstick

except models 170 
Models 203, 209.375, 
Model 208 
Models 211.061/065/070, 
Model 230.475

 

3

Detach right ignition coils 
(4), left ignition coils (5) 
on right cylinder head 
cover (2) and left cylinder 
head cover (3)

Except engines 
112.911/914/915/917/954, 
Engine 113.969

AR15.12-P-2003A 

 

*BA01.20-P-1002-01E

4

Disconnect spark plug 
connectors

 Installation: Observe 

marking for spark plug 
connectors on the cylinder head 
covers and ignition coils.

 

 

2001 Mercedes-Benz ML320 

1998-2005 ENGINE Complete engine - 163 Chassis

  

me 

 

 Double open-ended wrench

Fig. 57

5

Pull off vent hoses on 
right connector (6) and on 
left connector (7) of the 
right cylinder head cover 
(2) and left cylinder head 
cover (3)

 

 

6

Pull off engine vent hose 
on left connector (8) of 
left cylinder head cover 
(3)

 

 

 

Risk of explosion caused 
by fuel igniting, risk of 
poisoning
 caused by 
inhaling and swallowing 
fuel as well as risk of 
injury
 to eyes and skin 
caused by contact with 
fuel.

No fire, sparks, open flames or 
smoking. 
Pour fuels only into suitable and 
appropriately marked containers. 
Wear protective clothing when 
handling fuel, date service.

AS47.00-Z-0001-01A 

7.1

Disconnect fuel line at 
fuel rail

 Only in case of vehicles with 

a non-flexible fuel line and. 
Models 211.061/065/ 
070/076/276, 
Model 215.374 
Model 220.074 
Model 230.474/475

 

Release fuel pressure through 
service valve!

 

 Engine 112

*BA07.52-P-1001-01A

 Engine 113

*BA07.52-P-1001-01A

 Pressure hose

Fig. 52

8

Remove right cylinder 
head cover (2) and left 
cylinder head cover (3)

 Installation: Check cylinder 

head covers for leaks, see: ?

 

Ensure cylinder head cover 
gasket is correctly installed.

AR01.20-P-5014-01B

 

*BA01.20-P-1001-01E

9

Install in the reverse order  

 

  

10

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 

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 

 

2001 Mercedes-Benz ML320 

1998-2005 ENGINE Complete engine - 163 Chassis

  

me 

 

 Crankcase ventilation, cylinder head cover 

 Fuel rail 

 Fuel rail 

Fig. 60: Identifying Double Open-End Wrench (110 589 01 01 00)

engine 
Run engine and inspect 
for leaks

Number

Designation

Engines 112.910/911/ 
912/913/914/ 915/916/917/ 
920/921/922/ 923/940/941/ 
942/943/944/ 945/946/947/ 
949/951/953/ 954/955/960/ 
961/970/972/ 973/975/976

Engines 113.940/ 
941/942/943/ 944/948/960/ 
961/962/963/ 964/965/966/ 
967/968/969/ 971/980/981/ 
982/984/986/ 992/995

Engines 
113.987/988/ 
990/991/993

BA01.20-
P-1001-
01E

Screw of 
cylinder 
head cover

Nm 8

10

8

BA01.20-
P-1002-
01E

Bolt of 
ignition 
coils to 
cylinder 
head cover

Nm 8

8

8

Number

Designation

Engine 112 except 
112.945/951/ 960/961

Engine 
112.945

Engines 112.960/ 
961 AMG

BA07.52-P-
1001-01A

Disconnect fuel feed 
line at fuel rail

Nm 38

38

35

Number

Designation

Engine 
113.987

Engines 
113.990/ 
991

Engine 
113.992/ 
993/995

Engines 113.940/941/ 942/943/944/ 
945/946/948/ 960/961/962/ 
963/964/965/ 966/967/968/ 
969/971/980/ 981/982/984/ 986/988

BA07.52-P-
1001-01A

Disconnect fuel 
feed line at fuel 
rail

Nm 38

38

38

38

 

2001 Mercedes-Benz ML320 

1998-2005 ENGINE Complete engine - 163 Chassis

  

me 

 

Fig. 61: Identifying Pressure Hose (119 589 04 63 00) 

TAP THREAD IN SPARK PLUG HOLE AND SCREW IN THREADED INSERT - AR01.30-P-5440-01B 

Fig. 62: Identifying Heli-Coil Repair Set (102 589 00 99 00) 

1. Remove pilot bushing (1) of tapped hole device 

 .  

2. Fill the swarf grooves of the combination tap (4) with grease for bonding the swarfs.  

3. Cut combination tap (4) into corresponding spark plug thread. Screw in combination tap (4) until the 

guide tube (3) is seated and forms a fully compress with the stop ring (2). 

 Screw out after 5 revolutions on removed cylinder head combination tap (4), clean the swarf grooves 

from swarfs and grease, refill with grease and finish cutting thread. After cutting. 

Blow out spark plug thread and cylinder with compressed air.

 

2001 Mercedes-Benz ML320 

1998-2005 ENGINE Complete engine - 163 Chassis

  

me 

 

 

 

 

 

 

 

 

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