clutch MERCEDES-BENZ ML500 1997 Complete Repair Manual

273 Emergency operation of Skyview Top
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Emergency operation of Skyview Top
The Skyview Top can be opened or closed manually
should an electrical malfunction occur.
The drive for the Skyview Top is located behind a
cover (1) in the rear compartment headliner.
Remove cover to gain access to the drive motors.
Obtain crank (3) (located at left side motor).
Remove plug (2) from holder, located next to the motors,
and insert into left side drive motor to declutch the
motor.Insert crank (3) into right side motor.
Note:
Push crank upward while turning it, to disengage the
electric motor.
To close the Skyview Top: turn crank clockwise.
To open the Skyview Top: turn crank counterclockwise.

273
Emergency operation of Skyview Top
Te ch n ica l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints
Car care Index
Emergency operation of Skyview Top
The Skyview Top can be opened or closed manually
should an electrical malfunction occur.
The drive for the Skyview Top is located behind a
cover (1) in the rear compartment headliner.
Remove cover to gain access to the drive motors.
Obtain crank (3) (located at left side motor).
Remove plug (2) from holder, located next to the motors,
and insert into left side drive motor to declutch the
motor. Insert crank (3) into right side motor.
Note:
Push crank upward while turning it, to disengage the
electric motor.
To close the Skyview Top: turn crank clockwise.
To open the Skyview Top: turn crank counterclockwise.

314 Technical termsPoly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing


engine


clutch / torque converter


transmission


transfer case


drive shaft


differential


axle shafts / axlesRemote Vehicle Diagnostics
Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to Tele Aid service.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint system
Seat belts, belt tensioner, airbags and
child seat restraint systems. As inde-
pendent systems, their protective func-
tions complement one another.RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Shift lock
When the vehicle is parked, this lock
prevents the transmission selector le-
ver from being moved out of positionP
without key turned and brake pedal de-
pressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.

GF54.30-P-3010A
Function of acoustic warnings
24.10.96

MODEL
129, 140 as of 1.6.96,

163, 168, 170,

202 as of 1.8.96,

208 up to 31.7.99,

210 as of 1.6.96 up to 30.6.99

Display
Function

Turn signal indicator

ticking
Switching on the turn signal indicator is

indicated acoustically by the turn signal

indicator ticking. The driver's attention is

brought to a defect in the turn signal system

by the turn signal indicator ticking at a higher

frequency.

Turn signal indicator ticking is generated

electromagnetically. The frequency

corresponds to that of the turn signal indicator

lamp.

The signal comes from the combination relay

(turn signal indicator with trailer coupling, rear

window defroster), wiper motor, ATA (N10/2),

on model 210 from the multi-function control
module (N10-1) or from the driver-side signal-

acquisition and actuation module (SAM)

(N10/1), on model 163 from the All-Activity

Module (AAM, N10), on model 168 it is

generated by the integrated turn signal

indicator control in the instrument cluster (A1).

Parking brake reminderThe parking brake warning sounds when

terminal 15g is ON from a speed of approx. 5

km/h.
Piezoelectric loudspeaker (quartz), function

GF54.30-P-3017A

Gear warning, model 168

only with automatic

transmission or automatic

clutch
The acoustic gear warning is active, when

D
a gear is engaged
and

D
the brake is
not
depressed
and

D
the accelerator pedal is
not

pressed
and


D
the driver's door is opened.

These conditions are processed in the gear

recognition module (A61) or in the automatic

clutch control module (N15/4). The

information on the status of the driver's door

is available as a CAN message. It is

transmitted by the instrument cluster (A1).

Piezoelectric loudspeaker (quartz), function

GF54.30-P-3017A

Speed warning
The speed warning sounds when terminal

15g is ON from a speed of approx. 120 km/h.

(on national variants only)

Piezoelectric loudspeaker (quartz), function

GF54.30-P-3017A

Speed limit warning
The warning sounds if the set maximum

speed is exceeded by at least 6 km/h.
(on vehicles with variable cruise control only)

Piezoelectric loudspeaker (quartz), function

GF54.30-P-3017A

Seat belt reminder
On national variants only
Piezoelectric loudspeaker (quartz), function

GF54.30-P-3017A

Switched-on lights

reminder
The switched-on lights reminder sounds when

terminal 15g is OFF, terminal 58k is ON,

when the starter key is removed and the

driver's door is opened.
Piezoelectric loudspeaker (quartz), function

GF54.30-P-3017A

Key reminder
The key reminder when terminal 15g is OFF

and the driver's door is open when the starter

key is inserted
Piezoelectric loudspeaker (quartz), function

GF54.30-P-3017A

Soft top reminder, model

170 only
The soft top reminder sounds when terminal

15 is ON and soft top reminder input is on low

level.
Piezoelectric loudspeaker (quartz), function

GF54.30-P-3017A

Copyright DaimlerChrysler AG 05.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

Remove/Install
1 - Remove transmission with torque converter. See REMOVE/INSTALL TRANSMISSION WITH
TORQUE CONVERTER.
2 - Put transmission down on workbench. See Fig. 1
.
3 - Take transmission housing (1) off torque converter housing (2). See Fig. 1
.
4 - Pull torque converter housing (2) off transmission housing (1).
5 - Unscrew internal Torx drive bolts (4a) of oil pump (4).
6 - Screw two opposed bolts (a) into the oil pump housing (4) and press the oil pump (4) out of the
converter housing (2) by applying light blows with a plastic hammer.
Inspect
7 - Check oil pump (4).
8 - Check teflon rings (5a) of multi-disk brake B1 (5), replace if necessary.
9 - Install in the reverse order. NOTE: Internal Torx drive bolts (2a) 15 bolts and internal Torx drive bolts (1a) 2
bolts.
NOTE: The intermediate panel (6) on the torque converter housing (2) can usually
be used several times. The panel must not be coated with sealant.
NOTE: Bolt, transmission housing to converter housing. See Fig. 2
.
NOTE: Ensure that the multi-disk clutch K1 (3) does not fall out.
NOTE: Bolt, oil pump with multi-disk brake B1 to converter housing. See Fig. 2
.
NOTE: According to condition: Dismantle and assemble oil pump. See
DISMANTLING & ASSEMBLING OIL PUMP
.
NOTE: Insert both teflon rings (5a) into groove with grease so that the joint stays
together.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Saturday, October 02, 2010 3:15:25 PMPage 3 © 2006 Mitchell Repair Information Company, LLC.

Shifting "N" To "D" (1st Gear), Function

See SHIFTING N TO D (1ST GEAR), FUNCTION
.
Function Of Shift From 1 To 2

See SHIFT FROM 1 TO 2, FUNCTION
.
Limp-home Mode, Function

See LIMP
-HOME MODE, FUNCTION.
Operating Pressure, Function

See OPERATING PRESSURE, FUNCTION
.
Lubricating Pressure, Function

See LUBRICATING PRESSURE, FUNCTION
.
Shift Pressure, Function

See SHIFT PRESSURE, FUNCTION
.
Modulating Pressure, Function

See MODULATING PRESSURE, FUNCTION
.
Shift Valve Pressure, Function

See SHIFT VALVE PRESSURE, FUNCTION
.
Manual Drive Mode Selection, Function

See MANUAL DRIVE MODE SELECTION, FUNCTION
.
Oil Level Control, Function

See OIL LEVEL CONTROL, FUNCTION
.
Torque Converter Lockup Clutch Control, Function

See FUNCTION OF TORQUE CONVERTER LOCKUP CLUTCH CONTROL
.
Torque Converter Lockup Clutch Control Pressure, Function

See TORQUE CONVERTER LOCKUP CLUTCH CONTROL PRESSURE, FUNCTION
.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 22 © 2006 Mitchell Repair Information Company, LLC.

Fig. 18: Shift From 1 To 2, Function (Second Gear Engaged)
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Aim
Engage front multiple-disc clutch (K1), disengage front multiple-disc brake (B1).
Operation
1st Gear Engaged See Fig. 16.
The end face of the 1-2/4-5 command valve (31a) is kept depressurized via the 1-2 and 4-5 shift solenoid valve
(Y3/6y3). Via the 1-2/4-5 holding pressure shift valve (28a), working pressure (p-A) is applied to the front
mutiple-disc clutch (K1) is depressurized.
Shift Phase
See Fig. 17
Via the 1-2 and 4-5 shift solenoid valve (Y3/6y3), the shift valve pressure (p-SV) is directed onto the end face
of the command valve 1-2/4-5 (31a). The 1-2/4-5 command valve (31a) is displaced and the shift pressure (p-S)
coming from the 1-2/4-5 shift pressure shift valve (29a) via the 1-2/4-5 command valve (31a) is directed to the
front multiple-disc clutch (K1). At the same time the front multiple-disc brake (B1) is subjected to overlap
pressure from the 1-2/4-5 overlap regulating valve (30a).
The B1 pressure acting on the end face of the 1-2/4-5 shift pressure shift valve (29a) is superseded by the
working pressure (p-A). The increasing shift pressure (p-S) at the front multiple-disc clutch (K1) acts on the
annular area of the 1-2/4-5 overlap regulating valve (30a). With an appropriate pressure level at the 1-2/4-5
holding pressure shift valve (28a) this valve switches over.
2nd Gear Engaged
See Fig. 18.
After the gear change is complete, the pressure on the end face of the 12-/4-5 command valve (31a) is reduced
via the 1-2 and 4-5 shift solenoid valve (Y3/6y3) and the command value is pushed back into its original
position. Via the 1-2/4-5 holding pressure shift valve (28a) working pressure (p-A) now reaches the front
multiple-disc clutch (K1) via the 1-2/4-5 command valve (31a).
The front multiple-disc brake (B1) is disengaged (depressurized). The spring in the 1-2/4-5 shift pressure shift
valve (29a) pushes this into its original position.
Continuation
Operating Pressure, Function

See OPERATING PRESSURE, FUNCTION
.
Shift Pressure, Function

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 28 © 2006 Mitchell Repair Information Company, LLC.

Limp-Home Mode, Function

See LIMP
-HOME MODE, FUNCTION.
Operating Pressure, Function

See OPERATING PRESSURE, FUNCTION
.
Lubricating Pressure, Function

See LUBRICATING PRESSURE, FUNCTION
.
Shift Pressure, Function

See SHIFT PRESSURE, FUNCTION
.
Modulating Pressure, Function

See MODULATING PRESSURE, FUNCTION
.
Regulating Valve Pressure, Function

See REGULATING VALVE PRESSURE, FUNCTION
.
Shift Valve Pressure, Function

See SHIFT VALVE PRESSURE, FUNCTION
.
Hydropneumatic Transmission Control, Function

See HYDROPNEUMATIC TRANSMISSION CONTROL, FUNCTION
.
Manual Drive Mode Selection, Function

See MANUAL DRIVE MODE SELECTION, FUNCTION
.
Oil Level Control

See OIL LEVEL CONTROL, FUNCTION
.
Function Of Torque Converter Lockup Clutch Control

See FUNCTION OF TORQUE CONVERTER LOCKUP CLUTCH CONTROL
.
Torque Converter Lockup Clutch Control Pressure, Function

See TORQUE CONVERTER LOCKUP CLUTCH CONTROL PRESSURE, FUNCTION

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 31 © 2006 Mitchell Repair Information Company, LLC.

Shift-Lock, Function

See SHIFT
-LOCK FUNCTION.
Park Pawl Interlock, Function

See PARK PAWL INTERLOCK, FUNCTION
.
Steering Lock Interlock, Function

See STEERING LOCK INTERLOCK, FUNCTION
.
Survey Of System Components, Automatic Transmission, Location/Task/Design/Function

See SURVEY OF SYSTEM COMPONENTS, AUTOMATIC TRANSMISSION,
LOCATION/TASK/DESIGN/FUNCTION.
Automatic Transmission, Function
Automatic transmission 722.6 is an electronically controlled 5-speed transmission with a lockup clutch in the
torque converter.
The ratios for the gear stages are achieved by three planetary gear sets. The 5th gear is designed with a step-up
ratio as an overdrive.
Shifting is initiated electronically. The gears are shifted by the corresponding combination of three
hydraulically actuated multi-disc clutches and two mechanical freewheels.
Basically automatic transmission 722.6 with electronic control offers the following advantages:
Reduced Fuel Consumption
Improved Shift Comfort
More Favorable Gear Steps As A Result Of 5 Gears
Enhanced Life And Reliability
Reduced Servicing Costs
The electrohydraulic control unit is bolted onto the bottom of the transmission housing. The end of the
transmission is formed by an oil pan made of sheet steel.
The oil pressure for the converter lockup clutch and center multiple-disc clutch is supplied via holes in the input
shaft. The oil pressure to the rear mulitiple-disc clutch is routed through the output shaft. The lubricating oil is
supplied and distributed by additional bore holes in both shafts. All bearing points of the gear sets as well as
freewheels and shift elements are supplied with lubricatin
g oil. NOTE: Transmission Without Touch Shift 722.6 In Model 163.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 32 © 2006 Mitchell Repair Information Company, LLC.

See STARTER LOCK-OUT CONTACT, LOCATION/TASK/DESIGN/FUNCTION.
Torque Converter, Location/Task/Design/Function

See TORQUE CONVERTER, LOCATION/TASK/DESIGN/FUNCTION
.
Wheel Speed Sensor Location/Task/Function

See WHEEL SPEED SENSOR, LOCATION/TASK/FUNCTION
.
Electric Control Module, Location/Task/Design/Function

See ELECTRONIC CONTROL MODULE, LOCATION/TASK/DESIGN/FUNCTION
.
D-4 Shift Isolating Mechanism, Location/Task/Design/Function

See D
-4 SHIFT ISOLATING MECHANISM, LOCATION/TASK/DESIGN/FUNCTION.
Location/Task/Design/Function Of Freewheel

See LOCATION/TASK/DESIGN/FUNCTION OF FREEWHEEL
.
Transmission Range Recognition Switch, Location/Task/Design/Function

See TRANSMISSION RANGE RECOGNITION SWITCH,
LOCATION/TASK/DESIGN/FUNCTION.
Kickdown Switch, Location/Task/Design/Function

See KICKDOWN SWITCH, LOCATION/TASK/DESIGN/FUNCTION MODEL 163 WITHOUT
TOUCH SHIFT.
Location/Task/Design/Function Of Command Valve

See LOCATION/TASK/FUNCTION OF COMMAND VALVE
.
Multiple-Disc Brake, Location/Task/Design/Function

See MULTIPLE
-DISC BRAKE, LOCATION/TASK/DESIGN/FUNCTION.
Multi-Plate Clutch, Location/Task/Design/Function

See MULTI
-PLATE CLUTCH, LOCATION/TASK/DESIGN/FUNCTION.
Upshift/Downshift Solenoid Valve, Location/Task/Design/Function

See UPSHIFT/DOWNSHIFT SOLENOID VALVE, LOCATION/TASK/DESIGN/FUNCTION
.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:26 PMPage 42 © 2006 Mitchell Repair Information Company, LLC.