Mercedes-Benz ML320. Manual — part 445

housing coolant line
--> (17) from
thermostat housing

15.1

Remove radiator

Only engine 113.942 /965 /981.

AR20.20-P-
3865HC

16

Remove brake
pressure regulator
vacuum line (5) from
brake pressure
regulator at rear of
intake manifold

17

Extract power
steering pump (19)
oil

Hand pump

Fig. 50

18

Detach return flow
line and pressure line
of power steering
pump (19)

Seal connections!

Set of plugs

Fig. 51

*BA46.30-P-
1002-01A

*BA46.30-P-
1003-01A

19

Remove regeneration
vacuum line (6) from
intake pipe

Risk of explosion
caused by ignition of
flammable products,
risk of poisoning
caused by inhaling
fuel vapors or
swallowing fuel as
well as risk of
injury to skin and
eyes exposed to fuel.

No fire, sparks, open flames or smoking.

AS47.00-Z-0001-
01A

Pour fuels only into suitable and appropriately
marked containers.

Wear protective clothing when handling fuel.

20

Disconnect fuel line
(4)

Release fuel pressure through service valve!

Collect fuel.

M112: ?

*BA07.52-P-
1001-01A

M113: ?

*BA07.52-P-
1001-01A

Pressure hose

Fig. 52

21

Detach coolant line
(14)

2001 Mercedes-Benz ML320

1998-2005 ENGINE Complete engine - 163 Chassis

me

22

Disconnect engine
wiring harness

AR01.00-P-
2410V

23

Remove poly V-belt
(3)

Installation: Lock tensioning device with a

drift or pin (diameter 5 mm).

Model 163.154/157/172.

AR13.22-P-
1202B

Model 163.174/175.

AR13.22-P-
1202BA

24

Disconnect
connector from A/C
compressor (10)

25

Unbolt AC
compressor (10)
from timing case
cover

Attach AC compressor at side in bottom of

engine compartment with lines connected.

*BA83.55-P-
1001-01A

26.1

Remove left inner
fender (24)

Only engine 113.942 /965 /981.

AR88.10-P-
1300GH

27.1

Remove shield (25)

Only engine 113.942 /965 /981.

28

Detach exhaust
system (11) at
exhaust manifold

Installation: On vehicles with engine

damage check exhaust system for chips before
assembly and remove any chips present to
prevent later damage

*BA14.10-P-
1002-01B

29

Detach exhaust
bracket (12)

Support exhaust system for this step.

Installation: Install new nuts.

30

Unbolt torque
converter (20) from
starter ring gear(21)

Installation: The mounting points (arrows,

black) of the torque converter (20) must be
flush with the three recesses (arrows, white) in
the starting ring gear (21).

*BA27.20-P-
1002-01C

31

Disconnect left O2
sensor connector
before TWC
(G3/3x1) and right
O2 sensor connector
before TWC
(G3/4x1) from
transmission

Remove cable ties!

32

Unscrew starter

Do not disconnect electric cables.

*BA15.30-P-
1003-01A

33

Unscrew bolts at
transmission bell

Engine 112.942/ 970.

Do not unscrew two top bolts at transmission
bell.

Engine 113.942 /965/981. Do not unscrew

2001 Mercedes-Benz ML320

1998-2005 ENGINE Complete engine - 163 Chassis

me

two bottom bolts at transmission bell.

*BA27.40-P-
1008-01A

34

Unscrew nuts (18)
for engine mount

Before unscrewing left engine mount, press

oil line of power steering out of fixture.

*BA22.10-P-
1001-01L

35

Unscrew oil filler
pipe (automatic
transmission) at right
cylinder head cover

36

Attach engine hoist
to engine lifting eyes

Use engine removal device!

*WE58.40-Z-
1012-11A

*WE58.40-Z-
1020-11A

37

Raise engine

Ensure that engine and its detachable

components are not lying against the body!

38

Insert transmission
support (22)

The transmission support is inserted onto

crossmember and into recess of transmission.

The transmission support prevents the

torque converter being pulled out. At the same
time, the transmission is fixed in place with the
transmission support when installing the
engine.

*WE58.40-Z-
1036-11A

?

*WE58.40-Z-
1036-11A

39

Unscrew two top
bolts (engine 112) or
two bottom bolts
(engine 113) of
transmission bell

Ensure that engine does not hit at front

against radiator or condenser damaging them

40

Pull engine out
toward front and lift
out

41

Install in the reverse
order

42

Inspect cooling
system for leaks

If fitting new cylinder head gaskets, bring

engine to operating temperature beforehand.

AR20.00-P-
1010HA

43

Risk of accident
caused by vehicle
starting off by itself

Secure vehicle to prevent it from moving by
itself.
Wear closed and snug-fitting work clothes.

AS00.00-Z-0005-
01A

2001 Mercedes-Benz ML320

1998-2005 ENGINE Complete engine - 163 Chassis

me

Oil pan

Fuel distributor

Fuel distributor

Exhaust manifold

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
Check for leaks with
engine running

Do not touch hot or rotating parts.

44

Read out fault
memory and erase

Stored faults which can result from cables
being disconnected or from simulation during
removal and installation or test work, have to
be processed and erased in the fault memories
after completing the work: ?
Diagnosis Manual Volume 2 Index 0:
Connecting and using test equipment.

Number

Designation

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

Engine 113.940/941/
942/943/944/ 945/946/960/
961/962/963/ 965/967/968/
969/980/981/ 982/984/986/
992/995

BA01.45-P-
1003-01B

Oil drain
screw to
oil pan

M14 Nm 30

30

Number

Designation

Engine 112 except 112.945/951/ 960/961

BA07.52-P-1001-01A Fuel feed line to fuel distributor Nm 38

Number

Designation

Engine 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

Fuel feed line to
fuel distributor

Nm 38

Number

Designation

Engine 112
except
112.951 / 976

Engine 113.940/941/ 942/943/944/
945/946/948/ 960/961/962/ 963/964/965/
966/967/968/ 969/971/980/ 981/982/984/
986/992/993/ 995

Flange connection,

2001 Mercedes-Benz ML320

1998-2005 ENGINE Complete engine - 163 Chassis

me