Mercedes-Benz ML320. Manual — part 409

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 CHAIN - 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 retainer. 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 direction 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

me

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 timing case recess, must be removed.

5. Connect both ends of the new timing chain (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 Riveted Link And Center Plate

REPLACING TIMING CHAIN - AR05.10-P-7601AA

2004 Mercedes-Benz ML350

1998-2005 ENGINE Engine timing - 163 Chassis

me

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 batteries

No 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

1

Disconnect battery
ground cable

Do not connect quiescent

current retention device
otherwise this may cause
damage to the control unit.

Model 203

AR54.10-P-0003P

Models 129, 163, 170, 202,
208, 210

AR54.10-P-0003A

Model 209

AR54.10-P-0003Q

2004 Mercedes-Benz ML350

1998-2005 ENGINE Engine timing - 163 Chassis

me

Models 211.061/065/070

AR54.10-P-0003T

Model 215, 220

AR54.10-P-0003I

Model 230.474 /475

AR54.10-P-0003R

All models 463 except
463.241/248 with code 979.

AR54.10-P-0003G

Model 463.241 with code
979

AR54.10-P-0003PV

Model 463.248 with code
979

AR54.10-P-0003PM

Notes on battery

All models

AH54.10-P-0001-01A

2

Remove spark plugs

To 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 plugs

Model 163

AP15.10-P-1580GH

Models 220, 230.474/475

AP15.10-P-1580AB

Models 210, 208, 202

AP15.10-P-1580A

Models 203, 170, 209, 211
with engine 112

Models 209, 211 with
engine 113

3

Remove cylinder head
covers

Air filter mounted on
vehicle

AR01.20-P-5014B

Air filter mounted on
engine

AR01.20-P-5014BV

4.1

Remove fan shroud

Not models

211.061/065/070, 230.475
Models 220, 230.474

AR20.40-P-6800AB

4.2

Remove electric fan

Model 170

AR20.40-P-5000SV

Models 203, 209

AR20.40-P-5000PV

Model 163.174

AR20.40-P-5000GH

5

Position 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

me