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Fig. 27: Locating Colored Dot On Camshaft Sprocket
6. Place a cloth be low timing chain.
7. Position riveting tool (2) so that timing chai n is resting on the spacer bars (arrow).
8. Tighten spindle (7) until a firm resistance is felt.
While turning the spindle (7) ensure that the pins of the riveted link are inserted into the holes of the
outer plate.
9. Remove rivet press tool (2).
Fig. 28: Identifying Timing Chain Resting On Spacer Bars
2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
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Page 2266 of 4133
10. Turn over moving assembly in sert (4) with the digit D5 to the riveting section (arrow).
Fig. 29: Identifying Riveting Tool As sembly Insert & Riveting Section
11. Position riveting tool (2) exactly above the middle of the pins (arrow).
12. Tighten spindle (7)fully at riveting tool (2).
Tightening torque of spindle: Reference value approx. 30 to 35 Nm.
13. Rivet pins of the ri veted link individually.
Fig. 30: Identifying Riveting T ool Exactly Above Middle Of Pins
14. Check riveting (arrows), re-rivet if necessary.
15. Fit on camshaft sprocket (6).
Pay attention to tightening torque of camshaft sprocket.
2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
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Page 2267 of 4133
The colored markings (8) on the timing chain and at the camshaft sprocket must be aligned.
Fig. 31: Identifying Colored Markings On The Timing Chain And At The Camshaft Sprocket
DRAWING IN TIMING CH AIN - AR05.10-P-7601-04AV
Fig. 32: Identifying Assembly Links (602 589 02 40 00)
Fig. 33: Identifying Case (602 589 00 98 00)
1. Connect the new timing chain (1) and the old timing chain (2) with the assembly link (3) (arrow).
Do not use an assembly plate and an assembly reta iner. While drawing in the new timing chain (1), the
assembly retainer can get jammed and jump off at the slide rails.
2. Slowly rotate crankshaft in direct ion of rotation of engine until the ends of the new timing chain (1) can
be connected.
2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
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Page 2268 of 4133
Always keep new timing chain (1) meshed with the camshaft sprocket. Pull out the free end of the
timing chain (4) steadily corresponding with the drawing in of the new timing chain (1).
3. Remove the assembly link (3) and place the old timing chain (2) to the side.
Fig. 34: Locating Assembly Link & Timing Chain
4. Cover the timing case recess with a clean cloth.
Parts which have dropped into the ti ming case recess, must be removed.
5. Connect both ends of the new timing chai n (1) with the new riveted link (5).
While inserting the new riveted link (5) ensure that the center plate (6) is also installed.
Fig. 35: Identifying Chain Ri veted Link And Center Plate
REPLACING TIMING CHAIN - AR05.10-P-7601AA
2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
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Page 2269 of 4133
ENGINE 112,113 / (except, 113.995) Only for vehicles with Elektrolufter
Fig. 36: Identifying Timing Chain Components
Removing
Risk of explosion caused
by oxyhydrogen gas. Risk
of poisoning and caustic
burns caused by
swallowing battery acid.
Risk of injury caused by
burns to skin and eyes
from battery acid or when
handling damaged lead-
acid batteriesNo fire, sparks, open flames
or smoking. Wear acid-
resistant gloves, clothing
and safety glasses. Only
pour battery acid into
suitable and appropriately
marked containers.AS54.10-Z-0001-01A
1Disconnect battery
ground cableDo not connect quiescent
current retention device
otherwise this may cause
damage to the control unit.
Model 203AR54.10-P-0003P
Models 129, 163, 170, 202,
208, 210AR54.10-P-0003A
Model 209AR54.10-P-0003Q
2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
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Page 2270 of 4133

Models 211.061/065/070AR54.10-P-0003T
Model 215, 220AR54.10-P-0003I
Model 230.474 /475AR54.10-P-0003R
All models 463 except
463.241/248 with code 979.AR54.10-P-0003G
Model 463.241 with code
979AR54.10-P-0003PV
Model 463.248 with code
979AR54.10-P-0003PM
Notes on batteryAll modelsAH54.10-P-0001-01A
2Remove spark plugsTo ensure that the engine
can be easily cranked when
drawing in the timing chain,
and to avoid the timing
chain jumping across.
Remove only once spark
plug of each cylinder.
Replace spark plugsModel 163AP15.10-P-1580GH
Models 220, 230.474/475AP15.10-P-1580AB
Models 210, 208, 202AP15.10-P-1580A
Models 203, 170, 209, 211
with engine 112
Models 209, 211 with
engine 113
3Remove cylinder head
coversAir filter mounted on
vehicleAR01.20-P-5014B
Air filter mounted on
engineAR01.20-P-5014BV
4.1Remove fan shroud Not models
211.061/065/070, 230.475
Models 220, 230.474
AR20.40-P-6800AB
4.2Remove electric fanModel 170AR20.40-P-5000SV
Models 203, 209AR20.40-P-5000PV
Model 163.174AR20.40-P-5000GH
5Position engine to 40°
after TDC of first
cylinder. Engine must not be
cranked backwards. The
notches of the camshafts
must be pointing in the
direction of the inner V.
It must be possible to easily
insert the two locking
plates.
If this is not possible: ?
Set the basic position of AR05.20-P-6020AU
2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
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Page 2271 of 4133

camshafts
The copper plates of the
timing chain must be
aligned with the scribe
marks on the camshaft
sprockets.
Owing to the unevenly long
paths of the timing chain it
may be necessary to crank
the engine as many as 14
times till the copper plates
get aligned with the scribe
marks on the camshaft
sprockets.
On vehicles equipped
with an air pump, the
combination valve must be
unbolted before the right
locking plate is inserted.
Installation: Replace
combination valve gasket.
*BA09.20-P-1001-01D
Locating plateFig. 11
Locating plateFig. 12
Timing chain drive -
generalEngines 112, 113GF05.10-P-9611-01C
6Remove chain tensionerModels 163.174, 215, 220
Models 170, 202, 203,
208.365/465
Models 209, 210,
211061/065/070
Model 230.474 with engine
113.992AR05.10-P-7800CA
7Remove camshaft
position sensor AR15.10-P-2000A
8Crank engine in direction
of rotation until the link
for separating the timing
chain is easily accessible The separation point for
the timing chain is one link
down from the copper tab
(right).
See new timing chain.
9Remove camsha ft bearing
bridge on rightEngine 112, 113AR05.20-P-7103AU
Engine 113.960 with code
(479) Cylinder shutoffAR05.20-P-7103AV
10Install holding bush (3)
onto camshaft on right Only insert bolts (4)
until they make contact. Fig. 40
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Page 2272 of 4133

Holding bush
11Bolt on holding devices
(1, 2) for timing chain at
right and left cylinder
heads RetainerFig. 39
12Disconnect timing chain Cover over timing case
recess with a clean cloth.
Parts which have dropped
into the timing case recess,
must be removed.
To pull out the old
timing chain, connect the
old chain to the new timing
chain.AR05.10-P-7601-01AV
Install
13Draw in new timing chain Pull in the new timing
chain by turning the
crankshaft in its standard
direction of rotation.AR05.10-P-7601-04AV
Assembly linksFig. 32
CaseFig. 16
14Remove retaining devices
(1, 2) for timing chain at
right and left cylinder
head RetainerFig. 39
15Rivet new timing chain AR05.10-P-7601-02AV
16Crank engine in direction
of rotation
17Check timing of engine AR05.10-P-6858V
18Take off holding bush (3)
on right camshaft Holding bushFig. 40
19Install camshaft bearing
bridge on rightEngines 112, 113AR05.20-P-7103AU
Engine 113.960 with code
(479) Cylinder shutoffAR05.20-P-7103AV
20Install camshaft position
sensor AR15.10-P-2000A
21Installing chain tensionerModels 163.174, 215, 220
Models 170, 202, 203,
208.365/465
Models 209, 210,
211061/065/070
Model 230.474 with engine
113.992AR05.10-P-7800CA
22.1Install fan shroud Not model AR20.40-P-6800AB
2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:37 PMPage 31 © 2006 Mitchell Repair Information Company, LLC.