1997 MERCEDES-BENZ ML320 timing chain

ENGINE 113 in MODELS 163.174 /175, 209.375 /475
ENGINE 113.987 in MODELS 209.376 /476 up to 23.4.04
Shown on engine 112
Fig. 49: Identifying Chain Tensioner Components
- Shown On Engine 112
Remove/install
1.1Remove fan shroud (2)
together with electric fanModels 208, 210 with engine
112
1.2Remove electric fan (1)Model 170.465 with engine
112.947
Model 170.466 with engine
112.960AR20.40-P-5000SV
Models 203.061 /261 with
engine 112.912
Models 203.064 /264 /764
with engine 112.946
Models 203.065 /265 with
engine 112.961
Models 203.081 /281 with
engine 112.916
Models 203.084 /284 with
engine 112.953 AR20.40-P-5000PV

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 42 © 2006 Mitchell Repair Information Company, LLC.

Timing chain, chain tensioner
Fig. 50: Identifying External Torx Set (001 589 76 09 00)

REMOVE/INSTALL SLIDE RAIL IN TI MING CASE COVER - AR05.10-P-8484V
ENGINE 112.945 in MODEL 463.209 /232 /233 /244 /245 /250
ENGINE 112 in MODEL 129, 163, 170, 202, 203, 208, 209, 210, 211, 220
210.061 /062 /261 /262 with
engine 112
Models
210.061 /062/261 /262
Model 202.088
External Torx setFig. 50
3Remove chain tensioner
(6) from timing case cover
(5) Installation: Replace seal
(7).
*BA05.10-P-1001-01C
Design of chain tensionerEngine 112, 113GF05.10-P-7801-01A
4Install in the reverse order
NumberDesignationEngines
112.910/911/
912/913/914/
915/916/917/
920/921/922/
923/940/941/
942/943/944/
945/946/947/
949/951/953/
954/955/960/
961/970/972/
973/975/976Engines
113.940/941/
942/943/944/
945/946/948/
960/961/962/
963/964/965/
966/967/968/
969/971/980/
981/982/984/
986/987/988/
990/991/992/
993/995
BA05.10-P-1001-
01CChain tensioner in
timing case coverNm8080

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 44 © 2006 Mitchell Repair Information Company, LLC.

Fig. 62: Identifying Basic Position Of Camshafts - Shown On Engine 112
Modification notes
26.11.97M112/113 Operation note modifiedStep 3AR05.10-P-7800C
Removing
1Remove
cylinder
head
coversAir filter located at vehicle side.AR01.20-
P-5014B
Air filter located on engine side.AR01.20-
P-5014BV
2Check
basic
position o
f
camshafts
If the basic position of the camshafts is not correct: ?
Turn engine to 40° after ignition TDC at cylinder 1.
The engine must not be turned back; otherwise the timing chain can get
jammed.
AR05.10-
P-6858V
3Remove
chain
tensioner
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,AR05.10-
P-7800C
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 Model 210, 208, 202, 163, 129,

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 58 © 2006 Mitchell Repair Information Company, LLC.

Engine 113.982 in model 463.243/246
Engine 112 in Model 170, 202, 203, 208, 209, 210,AR05.10-
P-7800CA
Engine 113 in models 163.174/175, 209
Engine 112 in Model 211.061 /065, 220, 230.467,AR05.10-
P-
7800AM
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,
230.474/475
4Remove
camshaft
Hall
sensor
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,AR15.10-
P-2000A
Engine 112 in Model 129, 163, 170, 202, 203, 208, 209.361/365/461/465, 210,
211.061 /065, 220, 230.467,
Engine 113 (except 113.990/991) in Model 129, 163, 202, 208,
209.375/376/475/476, 210, 211.070, 215, 220, 230.474/475,
Engine 113.962 in model 463.206/240/241 /247/248/249/254,
Engine 113.982 in model 463.243/246
Engine 113.990 in model 211.076/276,
Engine 113.991 in models 215.374, 220.074 /174AR15.10-
P-
2000RVK
5Remove
right-hand
camshaft
sprocket Lift timing chain from camshaft sprocket.
Open-end wrenchFig. 22
Insertion toolFig. 66
Torque wrenchFig. 23
6Remove
left-hand
camshaft
sprocket Lift timing chain from camshaft sprocket.
Open-end wrenchFig. 22
Insertion toolFig. 66
Torque wrenchFig. 23
Install
7Rotate
left-hand
camshaft
to the
basic
position
and fit
locating
plate to
the Open-end wrenchFig. 22
Groove of camshaft (6) must point to the center of the cylinder head cover
separating surface in direction of inner V.
Locating plateFig. 12
Place locating plate flush onto left cylinder head and insert into the groove
(6) of the camshaft.
At a 40° crank angle afte r ignition TDC of cylinder 1 it is possible to rotate

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 59 © 2006 Mitchell Repair Information Company, LLC.

camshaftthe camshaft without th e valves coming into contact with the pistons.
8Rotate
right
camshaft
in basic
position
and insert
locating
plate for
right
camshaft
(2) in the
camshaft Open-end wrenchFig. 22
Groove of camshaft (6) must point to the center of the cylinder head cover
separating surface in direction of inner V.
Locating plateFig. 11
Place locating plate for right camshaft (2) flush onto the right cylinder head
and insert into the groove of the camshaft (6).
At a 40° crank angle afte r ignition TDC of cylinder 1 it is possible to rotate
the camshaft without th e valves coming into contact with the pistons.
9Install
left-hand
camshaft
sprocket Place timing chain onto camshaft sprocket.
Insertion toolFig. 66
Bolt of camshaft sprock et engine 112, 113 except 113.969
*BA05.20-
P-1001-
01B
10Install
right-hand
camshaft
sprocket Place timing chain onto camshaft sprocket.
Insertion toolFig. 66
Bolt of camshaft sprock et engine 112, 113 except 113.969
*BA05.20-
P-1001-
01B
11Install
camshaft
Hall
sensorEngine 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,AR15.10-
P-2000A
Engine 112 in Model 129, 163, 170, 202, 203, 208, 209.361/365/461/465, 210,
211.061 /065, 220, 230.467,
Engine 113 (except 113.990/991) in Model 129, 163, 202, 208,
209.375/376/475/476, 210, 211.070, 215, 220, 230.474/475,
Engine 113.962 in model 463.206/240/241 /247/248/249/254,
Engine 113.982 in model 463.243/246
Engine 113.990 in model 211.076/276,AR15.10-
P-
2000RVK
Engine 113.991 in models 215.374, 220.074 /174
*BA15.10-
P-1002-
03A
12Installing
chain Engine 112 in models 211.080/082/261/265 /280/282,
Engine 113 in model 211.083/270/283

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 60 © 2006 Mitchell Repair Information Company, LLC.

Camshaft
Camshaft
tensionerEngine 112.945 in model 463.209/232/233 /244/245/250,AR05.10-
P-7800C
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 Model 210, 208, 202, 163, 129,
Engine 113.982 in model 463.243/246
Engine 112 in Model 170, 202, 203, 208, 209, 210,AR05.10-
P-7800CA
Engine 113 in models 163.174/175, 209
Engine 112 in Model 211.061 /065, 220, 230.467,AR05.10-
P-
7800AM
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,
230.474/475
Check
13Inspect
timing AR05.10-
P-6858V
Check
general
notes on
valve
timing,
scribe
marksEngine 112, 113AH05.10-
P-1000-
01A
The engine must not be turned back; otherwise the timing chain can get
jammed.

14Install
cylinder
head
coversAir filter located at vehicle side.AR01.20-
P-5014B
Air filter located on engine side.AR01.20-
P-5014BV
NumberDesignationEngines
113.940/941/
942/943/944/
948/961/962/
963/964/965/
966/967/968/
969/971/980/
981/982/984/
986/992/995Engine
112
except
112.951/976
BA05.20-P-
1001-01BBolt, camshaft
sprocketM12x45Stage 1Nm5050
Stage 2Angle°9090

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 61 © 2006 Mitchell Repair Information Company, LLC.

grooves on the camshafts
must be pointing toward the
inner V.
Engine must not be
rotated backwards.
3Remove chain tensioner
(2)Model 129, 463AR05.10-P-7800C
Model 163 except
163.174 /175
Model 202, 208, 210 with
engine 113
Model 170, 202, 203, 208,
209, 210 with engine 112AR05.10-P-7800CA
Model 163.174/175
Model 209.375 /475
Model 209.376 /476 up to
23.4.04
Model 203 with engine 113AR05.10-P-7800AC
Model 209.376/ 476 as of
24.4.04
Model 211.0 with engine
112, 113
Model 211.276
Model 215 Model
220, 230 with engine 112,
113
Model 211.2 except 211.276
with engine 112, 113
Model 171 with engine 113
4Remove camshaft Hall
sensor (1)Model 129, 163, 170, 202,
203, 208, 209, 210, 215, 220
with engine 112AR15.10-P-2000A
Model 129, 163, 202, 208,
210 with engine 113 except
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 113AR15.10-P-2000AC

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 65 © 2006 Mitchell Repair Information Company, LLC.

Model 171
Model 209.475
Model 211.261 /265/270
5Detach camshaft
sprocket, take off Tie camshaft sprocket
and timing chain together
with cable tie (5).
Open-end wrenchFig. 22
Insertion toolFig. 66
Torque wrenchFig. 23
6Take off camshaft
bearing bridge (4) Observe slackening
diagram!
Engine 112, 113 except
cylinder shutoff, code 479.AR05.20-P-7103AU
Engine 113.960 with
cylinder shutoff, code 479.AR05.20-P-7103AV
7Remove camshaft
Install
8Install camshaft Pay attention to camshaft
marking when installing
camshaft.
Camshaft code number
and assignmentEngine 112, 113AH05.20-N-0100-01A
Oil the bearing surfaces!
Pay attention to correct
position of cap on front end
of camshaft.
9Install camshaft bearing
bridge (4). Observe tightening
procedure.
Engine 112, 113 except
cylinder shutoff, code 479.AR05.20-P-7103AU
Engine 113.960 with
cylinder shutoff, code 479.AR05.20-P-7103AV
10Rotate camshaft to basic
position AR05.20-P-6020AU
Locating plateFig. 11
Locating plateFig. 12
Open-end wrenchFig. 22
11Install camshaft sprocket Take off cable tie (5)!
*BA05.20-P-1001-01B
Open-end wrenchFig. 22
12Install camshaft Hall
sensor (1)Model 129, 163, 170, 202,
203, 208, 209, 210, 215, 220
with engine 112
Model 129, 163, 202, 208,
210 with engine 113 except AR15.10-P-2000A

2004 Mercedes-Benz ML350
1998-2005 ENGINE Engine timing - 163 Chassis
me
Saturday, October 02, 2010 3:39:38 PMPage 66 © 2006 Mitchell Repair Information Company, LLC.