1997 MERCEDES-BENZ ML320 timing chain

Camshaft
engine 113.990 /991
Model 209 except 209.475
Model 211 except
211.076 /261 /265 /270 /276
Model 463 with engine
113.962
Model 463 with engine
113.982
Model 211.076/276
Model 215.374,
220.074 /174AR15.10-P-2000RVK
Model 203 with engine 113
Model 171
Model 209.475
Model 211.261 /265/270AR15.10-P-2000AC
*BA15.10-P-1002-03A
13Install chain tensioner (2)Model 129, 463
Model 163 except
163.174/175
Model 202, 208, 210 with
engine 113AR05.10-P-7800C
Model 170, 202, 203, 208,
209, 210 with engine 112
Model 163.174/175
Model 209.375/475
Model 209.376/476 up to
23.4.04AR05.10-P-7800CA
Model 203 with engine 113
Model 209.376/476 as of
24.4.04AR05.10-P-7800AC
Model 211.0 with engine
112, 113
Model 211.276
Model 215
Model 220, 230 with engine
112, 113AR05.10-P-7800AM
Model 211.2 except 211.276
with engine 112, 113
Model 171 with engine 113
14Check engine valve
timing AR05.10-P-6858V
15Install cylinder head
coversAir filter mount ed on vehicleAR01.20-P-5014B
Air filter mounted on engineAR01.20-P-5014BV

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 67 © 2006 Mitchell Repair Information Company, LLC.

Camshaft
Remove/install
1Remove
cylinder head
coverAir filter located at vehicle side.AR01.20-
P-5014B
Air filter located on engine side.AR01.20-
P-5014BV
2Position piston
of cylinder 1 at
40° after TDC Engine must not be cranked backwards.
Rotate engine at crankshaft in direct ion of rotation until 40° marking on belt
pulley/ vibration damper is aligned with marking on timing case cover.
Grooves in the camshafts must point towards the "inner V".AR05.10-
P-6858V
3Remove chain
tensioner (A)
Engine 112 in models 211.080/082/261/265 /280/282,
Engine 113 in model 211.083/270/283
Engine 112.945 in model 463.209/232/233 /244/245/250,
Engine 112 in models 163, 129,
Engine 113.962 in model 463.206/240/241 /247/248/249/254,
Engine 113 (except 113.965/981) in models 210, 208, 202, 163, 129,
Engine 113.982 in model 463.243/246AR05.10-
P-7800C
Engine 112 in models 170, 202, 203, 208, 209, 210,
Engine 113 in models 163.174/175, 209AR05.10-
P-7800CA
Engine 112 in models 211.061 /065, 220, 230.467,
Engine 113 in models 211.070/076/276,
215.373/374/375,220.070/073/074/075 /083/ 084/170/173/174/175/183/184/875,
230.474/475AR05.10-
P-
7800AM
4Remove
camshaft
bearing bridge Tie camshaft sprocket and timing ch ain together with a cable strap to
prevent the timing chain from skipping.
Slacken bolts in stages in the opposite sequence to the torquing pattern. (See
diagram)
Information on
installing
camshaft
bearing bridgeEngine 112/113 except cylinder shutoff code 479
Installation: Bolt, camshaft bearing bridge to cylinder head, engine 112,
113 except 113.969AH05.20-
P-2000-
01AV
*BA05.20-
P-1002-
01B
*BA05.20-
P-1004-
01B
5Install in the
reverse order
NumberDesignationEngine 112
except
112.951/976Engines
112.951/ 976
BA05.20-P- Bolt, camshaft M7x45Stage 1Nm158

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 72 © 2006 Mitchell Repair Information Company, LLC.

Fig. 83: Identifying Valve Springs And / Or Valve Stem Seal Components -Shown On Engine 112 (2 Of
2)
Remove/install
1Remove engine cover or
air filterRemove engine trim
panel or air filter by
pulling it vertically up
and off the cylinder head
covers.
2Remove viscous fan (1) Right-hand thread!AR20.40-P-5660C
3Fan shroud (2) On model 163
unscrew bolts at bottom
of fan shroud.
Models 163.AR20.40-P-5000GH
Model 463.AR20.40-P-6800V
4Remove poly-V-belt (3) Installation: Lock
tensioning device with a
drift or pin (diameter 5
mm).AR13.22-P-1202B
5Remove cylinder head
covers (6)Air filter located at
vehicle side.AR01.20-P-5014B
Air filter located on
engine side.AR01.20-P-5014BV
6
Remove spark plugs (8)Only one spark plug at
each cylinder.
Models 163.AP15.10-P-1580GH
Models 129, 202, 208,
210.AP15.10-P-1580A
Model 463.AP15.10-P-1580GA
7Remove intake manifold
(7) The intake manifold
system must not be
disassembled.
Remove intake
manifold together with
fuel rail.
Models 129, 163, 202,
208, 210.AR09.20-P-1310A
Model 463.AR09.20-P-1310AG
8Position crankshaft to 40°
after ignition TDC of
cylinder 1 Engine must not be
cranked back!AR05.10-P-6858V
9Remove chain tensioner
(5) AR05.10-P-7800C
10Remove camshaft AR15.10-P-2000A

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 79 © 2006 Mitchell Repair Information Company, LLC.

position sensor (11)
11Remove camshaft
sprockets (10) Lock right and left
camshaft with locating
plates.
Locating plateFig. 11
Locating plateFig. 12
Open-end wrenchFig. 22
Insertion toolFig. 66
Torque wrench001589722100
*BA05.20-P-1001-01B
After installation: ?
Inspect timing of engine.AR05.10-P-6858V
? If necessary after
checking:
Set basic position of
camshafts.AR05.20-P-6020AU
12Remove camsha ft bearing
bridges (9)Engines 112, 113 except
code (479) Cylinder
shutoff.AR05.20-P-7103AU
Engine 113 with code
(479) cylinder shutoff.AR05.20-P-7103AV
13Position piston of cylinder
to be processed to TDC Crank engine at
crankshaft for this
purpose and hold up
timing chain (so that it
does not jam).
Installation: Before
installing the camshaft
sprockets, again turn
back the crankshaft in the
starting position to 40 °
as per ignition TDC at
the first cylinder.

14Install retaining lock (13)
for crankshaft After setting TDC of
cylinder to be processed,
in order to prevent
crankshaft turning
further.AR03.30-P-5000B
15Connect up cylinder leak
tester (12) Turn connection
hose of cylinder leak
tester into the relevant
spark plug hole.*WH58.30-Z-1015-05A
16Pressurize compression
chamberWith a pressure of about
5 bar.

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 80 © 2006 Mitchell Repair Information Company, LLC.

*BA07.52-P-
1001-01A
Pressure hoseFig. 52
12Remove right and
left ignition coils
(12) AR15.12-P-
2003A
13Remove right and
left cylinder head
covers (13) AR01.20-P-
5014B
14Remove intake
manifold (14) Installation: On vehicles with engine
damage, the intake manifold must be examined
for swarfs before assembling and any swarfs
present must be removed, in order to avoid
consequential damage.
The intake manifold system must not be
disassembled.
Remove intake manifold together with fuel
distributor.AR09.20-P-
1310A
15.1Remove camshaft
angle position sensor
(15) Only necessary if right cylinder head is
removed.AR15.10-P-
2000A
16Remove poly-V-belt
(8) Installation: Lock tensioning device with a
drift or pin (diameter 5 mm).
Models 163.154/157/172.AR13.22-P-
1202B
Models 163.174/175.AR13.22-P-
1202BA
17Detach coolant line
(16) at left cylinder
head 6 mm socket hexagon*WH58.30-Z-
1001-06A
7 mm socket hexagon*WH58.30-Z-
1002-06A
18.1Remove inner fender
(9) Only for engine 113.942 /965 /981.AR88.10-P-
1300GH
19.1Remove shield (10) Only for engine 113.942 /965 /981.
20.1Remove exhaust
bracket (11) Only for engine 113.942 /965 /981.
Support exhaust system.
21Detach exhaust
system at exhaust
manifold Installation: On vehicles with engine
damage check exhaust sy stem for chips before
assembly and remove any chips present to
prevent later damage
*BA14.10-P-
1002-01B
22Position crankshaft
to 40° after ignition The engine must not be turned back;
otherwise the timing chain can get jammed. AR05.10-P-
6858V

2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 87 © 2006 Mitchell Repair Information Company, LLC.

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.