Mercedes-Benz ML320. Manual - part 411

Fig. 41: Identifying Assembly Links (602 589 02 40 00) 

Fig. 42: Identifying Case (602 589 00 98 00) 

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

ENGINE 112  

ENGINE 112.945 in MODEL 463.209 /232 /233 /244 /245 /250  

ENGINE 113.962 in MODEL 463.206 /240 /241 /247 /248 /249 /254  

ENGINE 113.982 in MODEL 463.243/246  

ENGINE 113 (except 113.995) in MODEL 129, 163, 202, 203, 208, 209, 210, 211, 215, 220, 230

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

Fig. 43: 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 

 

Notes on battery

All models.

AH54.10-P-0001-01A 

1

Disconnect ground cable

Model 463 except code 
(979) Special protection 
version

AR54.10-P-0003G

Model 463.241 with code 
(979) Special protection 
version.

AR54.10-P-0003PV

Model 463.248 with code 
979

AR54.10-P-0003PM

Models 129, 208, 210.

AR54.10-P-0003A 

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

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 one spark 

plug at each cylinder.

 

 

Replace spark plugs

Model 463.

AP15.10-P-1580GA

Model 129.

AP15.10-P-1580A

Models 202, 208, 210 with 
engine 112.

 

Models 163.

AP15.10-P-1580GH 

3

Remove cylinder head 
covers

Air filter located at vehicle 
side.

AR01.20-P-5014B 

Air filter located on 
engine side.

AR01.20-P-5014BV 

4

Remove viscous-drive fan.

 Right-hand thread!

AR20.40-P-5660C 

5

Remove fan shroud

 On model 163 unscrew 

bolts at bottom of fan 
shroud. 
Model 463.

AR20.40-P-6800V

6

Position engine at a 40° 
crank angle before 
ignition TDC of cylinder 
1.

 Engine must not be 

cranked back. 
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 
camshafts.

AR05.20-P-6020AU

 The copper tabs of the 

timing chain must be 
aligned with the markings 
on the camshaft sprockets.
Because of the unevenly 
long travel of the timing 
chain it may be necessary 
to crank the engine as 
much as 14 times until the 
copper tabs are aligned 
with the markings on the 

 

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

camshaft sprockets. On 
vehicles equipped with an 
air pump, the combination 
valve must be unbolted 
before the right locking 
plate is inserted. 
Installation : Replace 
Gasket of combination 
valve.

 

*BA09.20-P-1001-01D

 Locating plate

Fig. 11

 Locating plate

Fig. 12

 

Timing chain drive - 
general

 

GF05.10-P-9611-01C

7

Remove chain tensioner

 

AR05.10-P-7800C

8

Remove camshaft position 
sensor

 

AR15.10-P-2000A 

9

Crank 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.

 

10

Remove camshaft bearing 
bridge on right

Engine 112, 113.

AR05.20-P-7103AU

Engine 113.960 with Code 
(479) cylinder shutoff.

AR05.20-P-7103AV

11

Install holding bush (3) 
onto camshaft on right

 Insert bolts (4) only 

until they make contact.

 

 

Fig. 40

12

Bolt on holding devices 
(1, 2) for timing chain at 
right and left cylinder 
heads

 

Fig. 39

13

Separate timing chain

 Parts which have 

dropped into the timing 
case recess, must be 
removed. Cover over 
timing case recess with a 
clean cloth.

AR05.10-P-7601-01AV

 

 

 Connect old timing 

chain to new timing chain 
before pulling out.

 

 

Installing 

 

 

14

Draw in new timing chain

 Pull in the new timing 

chain by turning the 

AR05.10-P-7601-04AV

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me