Mercedes-Benz ML320. 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