1997 MERCEDES-BENZ ML320 timing

272 Emergency operation of sliding/pop-up roof
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Emergency operation of sliding/pop-up roof
The sliding / pop-up roof can be opened or closed
manually should an electrical malfunction occur.
The sliding / pop-up roof drive is located behind the
cover between the front interior lamps.
1. Open cover by using a f lat blade screw driver at top
edge.
2. Obtain crank (supplied with vehicle) and insert in
hexagon drive hole, located at rear end of the open
cover.Note:
Push crank upward while turning it, to disengage the
electric motor.
To slide the roof closed or to raise the roof at the rear:
turn crank clockwise.
To slide the roof open or to lower the roof at the rear:
turn crank counterclockwise.
Important!
After manually operating the sliding / pop-up roof, a
timing synchronization is needed for future electrical
operation of the roof. To do so, remove fuse for sliding/
pop-up roof operation, located in fuse box, for one
second and reinstall. Now push and hold switch until
the sliding / pop-up roof is fully raised. Continue to hold
switch for another second.
RESETMODEMODE

274 Manual release for fuel filler flap
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Important!
After manually operating the Skyview Top, a timing
synchronization is needed for future electrical operation
o f the Sk yv iew To p. To do s o, tur n key i n stee ri n g lock to
position 2. Now push and hold switch until the Skyview
Top is fully closed. Continue to hold switch for
additional 15 seconds.Manual release for fuel filler flap
The manual release is located behind the cover in the
left rear compartment trim panel.
In case the central locking system does not release the
fuel filler flap, pull up on the lock rod (arrow).
ML 55 AMG:
First remove the space-saver tire from its holder, see
page 242.

272
Emergency operation of sliding/pop-up roof
Te ch n ica l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints
Car care Index
Emergency operation of sliding/pop-up roof
The sliding / pop-up roof can be opened or closed
manually should an electrical malfunction occur.
The sliding / pop-up roof drive is located behind the
cover between the front interior lamps.
1. Open cover by using a f lat blade screw driver at top edge.
2. Obtain crank (supplied with vehicle) and insert in hexagon drive hole, located at rear end of the open
cover. Note:
Push crank upward while turning it, to disengage the
electric motor.
To slide the roof closed or to raise the roof at the rear:
turn crank clockwise.
To slide the roof open or to lower the roof at the rear:
turn crank counterclockwise.
Important!
After manually operating the sliding / pop-up roof, a
timing synchronization is needed for future electrical
operation of the roof. To do so, remove fuse for sliding/
pop-up roof operation, located in fuse box, for one
second and reinstall. Now push and hold switch until
the sliding / pop-up roof is fully raised. Continue to hold
switch for another second.
R ESETM O
DEM OD
E

274
Manual release for fuel filler flap
Te ch n ica l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints
Car care Index
Important!
After manually operating the Skyview Top, a timing
synchronization is needed for future electrical operation
o f the Sk yv iew To p. To do s o, tur n key i n stee ri n g lock to
position 2. Now push and hold switch until the Skyview
Top is fully closed. Continue to hold switch for
additional 15 seconds. Manual release for fuel filler flap
The manual release is located behind the cover in the
left rear compartment trim panel.
In case the central locking system does not release the
fuel filler flap, pull up on the lock rod (arrow).
ML 55 AMG:
First remove the space-saver tire from its holder, see
page 242.

DATA TRANSFER, FUNCTION - GF82.00-P-2000A
MODEL 129 as of 1.6.98, 163, 168 as of 1.9.98, 170, 202 as of 1.6.98, 203, 208, 210 as of 1.6.98, 215, 220
The Digital Data Bus (D2B) contains the master unit, e.g. the radio (A2) except for model 129, and model 202,
which triggers all the components in the Digital Data Bus system (D2B). The master unit also serves as an
interface (Gateway) to the CAN interior (CAN-B). For this purpose, signals arriving at the master unit are
converted so that they can be transmitted from the Digital Data Bus (D2B) to the CAN interior (CAN B) and
vice versa. Moreover, the master unit serves as a timing circuit which provides the clock pulse with which the
information frames are transferred on the Digital Data Bus (D2B). A frame consists of 2 subframes. A series of
many data frames contains the complete information for proper operation of the components located at the
Digital Data Bus (D2B). The conversion of optical pulses into electrical signals and vice versa is done by
transmitter and receiver diodes, that are integrated into each component. Each of the components receives or
transmits the electrical signals from the chip of the Digital Data Bus system (D2B) as a "D2B log". Source data
and control data are transmitted.
The source data are transferred synchronously, for example as present on a music CD, as 32 bit blocks into the
subframes. By contrast, control data are transferred asynchronously. They are divided up (2 bits per subframe)
and distributed over several subframes. The control data are provided with an address, which indicates for
which components the data are intended in the Digital Data Bus (D2B). The individual data packages are joined
together again in the components and they can then be processed. A data frame can therefore contain highly
differing types of information (source and control data from all components mounted in the digital data bus
(D2B)). The transmission and reception diodes as well as the digital data bus (D2B) chip are switched off when
not required in order to reduce the quiescent current (sleep mode). Switch-off is accomplished immediately
when the master unit or circuit 15 is switched off. After restart, the digital data bus system (D2B) can be
activated either by the components or by the master unit by means of an electrical signal in the wake-up line for
optical data transmission.
Regardless whether the information is intended for a component, it feeds an edited light signal back into the
digital data bus (D2B) at full intensity (repeater function).
WAKE-UP, FUNCTION - GF82.00-P-2001A
MODEL 129 as of 1.6.98, 163, 168 as of 1.9.98, 170, 202 as of 1.6.98, 203, 208, 210 as of 1.6.98, 215, 220
Normal wake-up
Digital data bus (D2B), function GF82.00-P-0001A
Data transfer, function GF82.00-P-2000A
Wake-up, function GF82.00-P-2001A
Survey of system components, digital
data bus (D2B),
location/task/design/function GF82.00-P-9999A
Wake-up, function GF82.00-P-2001A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 12 © 2006 Mitchell Repair Information Company, LLC.

RADIO RECEPTION, TESTING ELECTRICAL SYSTEM, RADIO (RD) - AD82.60-P-6000-07A
ACTUATION FOR AUTO MATIC ANTENNA, TESTING E LECTRICAL SYSTEM, RADIO (RD) - AD82.60-P-6000-08A
expect
Fig. 121: Actuation For Automatic Antenn a, Testing Electrical System, Radio (RD)

96.0)
Engine: Start Electronic
components
Ignition system
Engine timing
Values in order :
Antenna systems
(AS)
Scope of testMeasuring
instrument/
Test
connectionOperation/RequirementSpecified
valuePossible
cause/Remedy
1.0 Radio (A2)
or Radio :
navigation
operating
unit (APS)
(A2/29)
Radio
reception Radio: ON
Set station with good
reception:
Carry out road testRadio
reception in
orderGround
connections
Cables
Radio or APS
radio and
navigation
operating unit
Radio transmitter
Broadcasting
corporation
Values in order:
Antenna systems
(AS)

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electr ical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 210 © 2006 Mitchell Repair Information Company, LLC.

P01.30-0299-06

20
Bolts cylinder head
!
timing case cover

21
Cylinder head bolts

22
Cylinder head left

23
Cylinder head right

24
Left cylinder head gasket

25
Right cylinder head gasket

26
Dowel sleeves


Remove/Install

Notes on self-locking nuts and bolts
All models

AH00.00-N-0001-01A


External torx set

*001589760900

Torx bit set

*000589011000


Danger!

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. Pour battery acid only into

suitable and appropriately marked containers.

AS54.10-Z-0001-01A

1
Disconnect battery ground cable


Installation:
After connecting, read out

fault memory, encode radio and normalize

power windows.

Vehicles with stationary heater: Set time on

timer for stationary heater
AR54.10-P-0003A

Notes on battery
All models

AH54.10-P-0001-01A

Danger!

Risk of death

caused by vehicle slipping or

toppling off of the lifting platform.
Align vehicle between the columns of the

hydraulic hoist and position the four support

plates below the hoist support points specified

by the vehicle manufacturer.

AS00.00-Z-0010-01A

2
Place the vehicle on lifting platform

AR00.60-P-1000GH
3.1
Remove air guide (1)


Only with engine 113.942

Danger!

Risk of injury
to skin and eyes suffering

scalding from contact with hot coolant spray.
Risk of poisoning
from swallowing coolant.
Do not open cooling system unless coolant

temperature is below 90 °C. Open cap slowly

and release the pressure. Do not pour coolant

into beverage bottles.

Wear protective gloves, protective clothing

and eye protection.
AS20.00-Z-0001-01A

4
Drain coolant

Remove coolant hose at bottom on

radiator.

AR20.00-P-1142HA

5
Remove engine cover

6.1
Remove viscous fan (2)

All except model 163.174 /175 with

engine 113.981 /965.

Right-hand thread!

AR20.40-P-5660C

7.1
Remove the fan shroud (3).

Only model 163.154 /157 /172. Unscrew

bolts (4) from bottom of fan shroud

7.2
Remove electric fan

Only model 163.174/ 175.

AR20.40-P-5000GH

Copyright DaimlerChrysler AG 20.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 2

16
Remove poly V-belt (8)


Installation:
Lock tensioning device with

a drift or pin (diameter 5 mm).

Model 163.154 /157 /172.

AR13.22-P-1202B

Model 163.174 /175.

AR13.22-P-1202BA

17
Detach the coolant line (16) at the cylinder

head on the left

6 mm socket hexagon

*WH58.30-Z-1001-06A

7 mm socket hexagon

*WH58.30-Z-1002-06A

18.1
Remove fender liner (9)

Only with engine 113.113.942 /965 / 981.

AR88.10-P-1300GH

19.1
Remove shield (10)

Only with engine 113.942 /965 /981.

20.1
Remove exhaust bracket (11)

Only with engine 113.942 /965 /981.

Support exhaust system.

21
Detach exhaust system at exhaust manifold


Installation:
On vehicles with engine

damage, the exhaust system must be

examined for swarfs before assembling and

any swarfs present must be removed, in order

to avoid consequential damage.


*BA14.10-P-1002-01B

22
Position crankshaft to 40° after ignition TDC

on cylinder 1


The engine must not be turned back;

otherwise the timing chain can get jammed.

AR05.10-P-6858V

Rotate engine at the crankshaft in running

direction until scribe mark 40° on pulley/

vibration damper corresponds with scribe

mark on timing case.

The grooves on the camshafts must be

pointing toward the inner V.

23
Lock camshafts with locating plates

Locating plate

*112589003200

Locating plate

*112589013200

24
Remove 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

25.1
Remove oil filter housing (18) together with oil-

water heat exchanger
Engine 113.942.

AR18.20-P-3471B

Engine 112.942/970.

AR18.20-P-3471BA

26
Unscrew camshaft sprockets (19)

If camshaft sprockets are removed,

engine must no longer be cranked, otherwise

timing chain might jam.

Engine 113.942 /965 /981:
#

Tie timing chain tight on both camshaft

sprockets with tie straps.

Engine 112.942 /970:

#

Right-hand camshaft sprocket:

Tie timing chain tight on camshaft sprocket

with tie 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 position of camshafts.

AR05.10-P-6858V

If necessary after checking:
#

Set the basic position of camshafts

AR05.20-P-6020AU

Open-end wrench

*112589000100

Insertion tool

*112589010300

Torque wrench

*001589722100


*BA05.20-P-1001-01B

27
Remove camshaft bearing bridges (28)

Pay attention to slackening and tightening

pattern!

AR05.20-P-7103AU

28
Unscrew bolts, cylinder head
!
timing case

cover (20)


*BA01.40-P-1002-01C

Copyright DaimlerChrysler AG 20.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 4