1997 MERCEDES-BENZ ML500 oil

TDC on first cylinder Rotate engine at cra nkshaft in direction of
rotation until 40° marking on belt pulley/
vibration damper is al igned with marking on
timing case cover.
The grooves on the camshafts must be pointing
toward the inner V.
23Lock camshafts with
locating plate Locating plateFig. 85
Locating plateFig. 86
24Remove chain
tensioner (17)Model 163.154 /157 with Engine 112.942 /970,
model 163.172 with Engine 113.942.AR05.10-P-
7800C
Model 163.174/175 with Engine 113.981 /965.AR05.10-P-
7800CA
25.1Remove oil filter
housing (18) with
oil/water heat
exchangerEngine 113.942.AR18.20-P-
3471B
Engines 113.965/981.AR18.20-P-
3471BA
26Remove camshaft
sprockets (19) If the camshaft sprockets are removed, the
engine must no longer be cranked otherwise the
timing chain might jam.
Engines 113.942 /965/981: ?
Tie timing chain tight on both camshaft
sprockets with cable straps.
Engine 112.942 /970: ?
Right-hand camshaft sprocket:
Tie timing chain tight on camshaft sprocket
with cable strap.
Left-hand camshaft sprocket:
Mark camshaft sprocket to timing chain and
remove camshaft sprocket.
It is not possible for the timing chain to
jump across at the crankshaft and balancing
shaft.
After installation: ?

Inspect basic positi on of camshafts.
If necessary after checking: ?AR05.10-P-
6858V
Set the basic position of camshafts.AR05.20-P-
6020AU
Open-end wrenchFig. 87
Insertion toolFig. 88
Torque wrenchFig. 92
*BA05.20-P-
1001-01B
27Remove camshaft
bearing bridges (28) Observe slackening and tightening pattern!AR05.20-P-
7103AU

2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 88 © 2006 Mitchell Repair Information Company, LLC.

28Unscrew bolts,
cylinder head -->
timing case cover
(20) *BA01.40-P-
1002-01C
29Slacken cylinder
head bolts (21) in
stages, unscrew Slacken cylinder head bolts according to
loosening pattern only once the engine has
cooled down, in order to avoid that the cylinder
head warps.AR01.30-P-5800-
09B
Installation: Observe tightening pattern and
tightening instructions of cylinder head bolts.
Oil thread and head cont act surface of cylinder
head bolts.AR01.30-P-5800-
07B
Screwdriver insertFig. 72
Screwdriver insertFig. 73
*BA01.30-P-
1001-01D
30Remove cylinder
head Installation: On Engine 112/113 observe
porous points in the le ft and right cylinder
head. If porous points are present, sealant must
be applied to the cylinder head gasket.
Notes on application
of sealant to cylinder
head gasket.Engine 112, 113AH01.30-P-1000-
04VA
The sealant must be applied within 10
minutes.
Loctite 5900 sealant.*BR00.45-Z-
1013-01A
31
Inspect version of
cylinder head gasket
Information for
assigning the
cylinder head gasketsAssignment of cylinder head gasket
Engine 112, 113AH01.30-P-1000-
06V
32Check cylinder head
bolts (21) AR01.30-P-5800-
03B
*BE01.30
-P-
1001-04B
33Clean sealing
surfaces, check for
cracks, shrink holes
and flatness, clean
bolt holes Pay attention to dowel sleeves (26) for
locating the cylinder head.
Sealing surfaces of crankcase and cylinder
head are provided with an 0.8 mm thick
silicone layer during se ries production. Silicone
sealant is applied in the gasket area when
carrying out repairs only if shrink holes are
present.
The sealant must be applied within 10
minutes.
*BR00.45-Z-

2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 89 © 2006 Mitchell Repair Information Company, LLC.

Engine 113 in model 129, 202, 208, 210
Engine 113 (except 113.965 /981) in model 163
Engine 112 in model 202, 208, 210AR13.22-P-
1202BA
Engine 112 in model 220
Engine 113 in model 215.373 /375
Engine 113 in models
220.070 /073 /075 /083 /084 /170 /173 /175 /183 /184 /875
Engine 113.965 in model 163.175
Engine 113.981 in model 163.174
Engine 113.984 in model 208.374 /474
Engine 113.963 in models 230.475AR13.22-P-
1202R
Engine 113.992 in model 230.474
Engine 112.947 in model 170.465AR13.22-P-
1202SV
10Remove cylinder
head covers (6)Engine 112, 113 air filter located on vehicle sideAR01.20-P-
5014B
Engine 112, 113 air filter located on engine sideAR01.20-P-
5014BV
11Detach coolant
line (17, 18) from
coolant pump
(12).
12Detach coolant
line (16) at
thermostat
housing (13).
13Dismount
refrigerant
compressor (A9) Place to the side with lines connected.

*BA83.55-P-
1001-01A
14.1Remove
alternator (G2)Engine 113.963 in models 230.475
Engine 113.992 in model 230.474AR15.40-P-
5032R
15.1Remove ATF line
bracket (23).Model 230
15.2Detach ATF line
from front axle
carrierModel 163
16Remove oil pan
bottom section (9)Engine 112.942 in model 163.154AR01.45-P-
7555V
Engine 112.970 in model 163.157
Engine 113.942 in model 163.172
Engine 113.965 in model 163.175AR01.45-P-
7555VE

2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 100 © 2006 Mitchell Repair Information Company, LLC.

Engine 113.981 in model 163.174
Engine 112 in models 210, 208, 202, 170, 129, engine 113
in model 210, 208, 202, 129AR01.45-P-
7555VA
Engine 112 (except 112.975) in model 220
Engine 113 (except 113.948 /966) in model 220
Engine 112.975 in model 220AR01.45-P-
7555IW
Engines 113.948/ 966 in model 220
Engine 113.963 in models 230.475AR01.45-P-
7555R
Engine 113.992 in model 230.474
17.1Remove oil pumpEngine 112, 113 in model 163AR18.10-P-
6020B
18.1Remove oil pan
(22)Engine 112, 113 in model 129AR01.45-P-
7500FD
Engine 112.942 in model 163.154AR01.45-P-
7500FB
Engine 112.970 in model 163.157
Engine 113.942 in model 163.172
Engine 113.965 in model 163.175
Engine 113.981 in model 163.174
Engine 112.947 in model 170.465 with transmission 722.6AR01.45-P-
7500SV
Engine 112.960 in model 170.466 with transmission 722.6
Engine 112 in model 202, 208AR01.45-P-
7500FC
Engine 113 in model 208
Engine 113.944 in model 202.033 /093
Engine 112 in models 210.06 /26 /66AR01.45-P-
7500F
Engine 113 in model 210
Engine 112 (except 112.975) in model 220AR01.45-P-
7500I
Engine 113 (except 113.948 /966) in model 220
Engine 112.975 in model 220AR01.45-P-
7500IW
Engines 113.948/ 966 in model 220
Engine 113.963 in models 230.475AR01.45-P-
7500R
Engine 113.992 in model 230.474
19.1Remove
tensioning device
for compressor
poly-V-beltEngine 113.992 in model 230.474AR13.25-P-
3217RVK

2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 101 © 2006 Mitchell Repair Information Company, LLC.

20Remove poly-V-
belt tensioning
device (5)Engine 112 in models 129, 163AR13.25-P-
3200B
Engine 113 in model 129, 202, 208, 210
Engine 113 (except 113.965 /981) in model 163
Models 129, 202, 210 with manual transmission.
Unscrew damper of belt te nsioning device at coolant
pump.
Engine 113.963 in models 230.475AR13.25-P-
3200R
Engine 113.992 in model 230.474
21Remove vibration
damper (4)Engine 112 in models 129, 163AR03.30-P-
1600C
Engine 113 in models 129, 202.033 /093
Engine 113 (except 113.981) in model 163
Engine 113 (except 113.980) in model 210
Engine 113 (except 113.984) in model 208
Engine 112.947 in model 170AR03.30-P-
1600CA
Engine 112 in model 202, 208, 210, 220
Engine 113.981 in model 163.174
Engine 113 (except 113.991) in models 215, 220.
Engine 113.963 in models 230.475
Engine 113.992 in model 230.474AR03.30-P-
1600RVK
22Remove chain
tensioner (14)ENGINE 112 in models 129, 163
Engine 113 (except 113.965 /981) in model 163
Engine 113 in model 129, 202, 208, 210AR05.10-P-
7800C
Engine 112 in model 170, 202, 208, 210
Engine 113 in model 163.174 /175AR05.10-P-
7800CA
Engine 112 in model 220
Engine 113 in model 215.373 /375
Engine 113 in models
220.070 /073 /075 /083 /084 /170 /173 /175 /183 /184 /875
Engine 113 in model 230.474 /475AR05.10-P-
7800AM
23.1Remove oil filter
housingEngine 113.992 in model 230.474AR18.20-P-
3471RKV
23.2Remove oil filter
housing with
oil/water heat
exchanger (7)Engine 112 in models 170, 202, 208, 210, 220AR18.20-P-
3471BA
Engine 113 in model 220
Engine 113.963 in models 230.475
Engine 113.965 in model 163.175
Engine 113.981 in model 163.174
Engine 112 in models 129, 163AR18.20-P-
3471B

2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 102 © 2006 Mitchell Repair Information Company, LLC.

Engine 113 in model 129, 202, 208, 210
Engine 113 (except 113.965/981) in model 163
24.1Remove oil
reservoir on
power steering
pump (11)Model 163
Removal: Extract oil from rese rvoir. Remove circlip.
Installation: Replace sealing ring. Ch eck that circlip is
correctly seated.
Power steering -
checking and
correcting oil
level AP46.00-P-
4611BB
Hand pumpFig. 95
24.2Detach power
steering pump
(11) with oil
reservoir. Do not disconnect lines.
*BA46.30-P-
1005-01A
*BA46.30-P-
1010-01A
*BA46.30-P-
1010-01C
25.1Detach guide
pulley at timing
case coverModel 230.474
*BA13.25-P-
1008-01D
25.2Take off guide
pulley (15) at
coolant pump Except model 230.474
Take plastic cover off guide pulley.
*BA20.10-P-
1001-01C
*BA20.10-P-
1001-01M
26.1Remove
compressorEngine 112.960 in model 170.466
Engine 113.992 in model 230.474AR09.50-P-
4705SVK
27Remove air pump
(20)Engine 112 (except 112.960) in model 170
Engine 112 in 163, 202, 208, 210
Engines 113 in 163, 202, 208, 210AR14.30-P-
7251A
Engine 112.922 in model 220.063AR14.30-P-
7251AA
Engine 112.923 in model 129.059
Engine 112.943 in model 129.064
Engine 112.944 in model 220.065 /165
Engine 112.972 in model 220.067 /167
Engine 112.975 in model 220.087 /187
Engine 113.941 in models 220.070/170
Engine 113.948 in model 220.083 /183
Engine 113.960 in model 220.075/175
Engine 113.960 in model 215.375
Engine 113.961 in model 129.068
Engine 113.963 in models 230.475
Engine 113.966 in model 220.084 /184

2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 103 © 2006 Mitchell Repair Information Company, LLC.

1002-01M
*BA20.10-P-
1003-01C
*BA20.10-P-
1003-01M
*BA20.10-P-
1004-01C
*BA20.10-P-
1004-01M
*BA46.30-P-
1010-01A
*BA46.30-P-
1010-01C
Clean sealing surfaces, appl y sealant only to specified
surfaces in form of bead with height and width of 2.0 mm
± 0.5 mm. The sealant must be applied within 10 minutes!
The silicone bead must not be spread!*BR00.45-Z-
1013-01A
Notes on
application of
sealant to timing
case cover AH01.40-P-
1000-01B
Installation: If sealing compound enters the oil ducts,
this is carried by the oil flow and will clog the oil supply
bores.
Do not damage cylinder head gasket.
Replace seals on ti ming case (19).
Replace front crankshaft radial sealing ring: ?

Engine 112 in model 129
Engine 113 in model 129
Engine 113 in model 163, 202, 208, 210AR03.20-P-
3000B
Engine 112 in models 170, 202, 208, 210, 220
Engine 113 in model 215, 220
Engine 113.981 in model 163.174
Engine 113.963 in models 230.475
Engine 113.992 in model 230.474AR03.20-P-
3000BA
32Install in the
reverse order

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
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
Saturday, October 02, 2010 3:17:57 PMPage 105 © 2006 Mitchell Repair Information Company, LLC.

Crankcase, timing case cover, end cover
Crankcase, timing case cover, end cover
crankshaft must be free of
oil and grease, in order to
guarantee a proper
function.
Install crankshaft radial
seal (3)AR03.20-P-3063-01B
Fig. 97
Installation: Pay
attention to fitted sleeves
(2) when pressing on end
cover!
Notes on application of
sealant to end cover with
radial shaft seal AH01.40-P-1000-06A
Sealant*BR00.45-Z-1013-01A
4Install in the reverse order

Risk of accident caused by
vehicle starting off by itsel
f
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

Secure vehicle to prevent
it from moving by itself.
Wear closed and snug-
fitting work clothes.
Do not touch hot or
rotating parts.
AS00.00-Z-0005-01A
5Carry out engine test run Before installing
transmission, inspect for
oil leaks
NumberDesignation
Engine 112 except
112.951/ 976
BA01.40-P-1004-
01CEnd cover screwThread not pre-
tappedNm14
Thread pre-tapped10
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/
Engine 113.987/
988/990/

2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 114 © 2006 Mitchell Repair Information Company, LLC.