oil MERCEDES-BENZ ML320 1997 Complete Repair Manual

Air conditioning system
REMOVE/INSTALL EVAPORATOR - AR83.30-P-5540GH
MODEL 163 with CODE (580) Air conditioning or Tempmatic for USA
Fig. 167: Identifying Evaporator Temperature Sensor Components
3Detach piping bracket (4) from
expansion valve (6) Installation: Install new self-locking nut (3).
*BA83.30-
P-1003-01B
4Detach piping fastening clamps (5)
from firewall
5Pull both pipes out of the expansion
valve (6) Press pipes to the side.
6Unscrew bolts (7) from expansion
valve (6) *BA83.30-
P-1004-01B
7Remove expansion valve (6) Installation: Install new sealing rings and
moisten with compressor oil.
8Install in the reverse order
NumberDesignationModel Series 163
BA83.30-P-1003-01BNut to pipeline on expansion valveNM10
BA83.30-P-1004-01BBolt, expansion valve to evaporator coreNM10

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 207 © 2006 Mitchell Repair Information Company, LLC.

Refrigerant compressor

Remove/Install

Risk of explosion from welding or
soldering work on closed air
conditioning system. Risk of
poisoning . Inhaling overheated
refrigerant vapors may be toxic. Risk
of injury. Contact with liquid
refrigerant may result in injury to the
skin and eyes.Do not carry out any welding work on the
closed air conditioning system or in the
surrounding area. No smoking or open
flames. Wear eye protection and protective
gloves. Work only in well ventilated areas.
Carry out repair work on the air
conditioning system circuit only after the
system has been discharged.
AS83.00-Z-
0001-01A
Procedures if air conditioning system
is damaged or leakingAll models
AH83.30-
N-0004-
01A

Protect air conditioning circuit and
components from moisture when
carrying out repair work
All models fitted with air conditioning
AH83.30-
N-0005-
01A
Notes on handling refrigerant R134aAll models fitted with air conditioning
AH83.30-
N-0003-
01A
1Remove evaporator housing AR83.30-
P-5200GH
2Remove expansion valve
Installation: Replace sealing rings
between the expansion valve and
evaporator and moisten with compressor
oil.
AR83.30-
P-5520GH
3Disassemble AC housing AR83.30-
P-5201GH
4Remove evaporator (1) from AC
housing Observe oil filling capacity when
replacing the evaporator.

*BF83.55-
P-1004-
01A
5Remove evaporator temperature sensor
(B10/6) AR83.30-
P-8085GH
6Install in the reverse order
NumberDesignationRefrigerant
compressor 7SB16,
refrigerant R134a
in model 163
BF83.55-P-1004-
01AAdditional oil filling
capacity when
replacing evaporatorCompressor oilcm3 40
Specifications for
Service ProductsSheetBB00.40-P-0362-
00A

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 208 © 2006 Mitchell Repair Information Company, LLC.

Air conditioning system
Refrigerant compressor
Fig. 172: Identifying External Torx Set (001 589 76 09 00)
3.1Remove mass air flow sensor on left
behind the charge air cooler On Model 163.113 only: between the air
hose of the charge air cooler and engine.
4Discharge air conditioning system
Installation: Evacuate air conditioning,
refill and check for proper operation and
leaktightness.AR83.30-P-
1760GH
5
Unscrew screw (3) for refrigerant
line (6) to the expansion valve and
screw (4) for refrigerant line (5) from
the condenser at the fluid reservoir
(8)
*BA83.30-
P-1001-01B
6
Remove refrigerant line (5) from
condenser and refrigerant line (6) to
the expansion valve at the fluid
reservoir (8)
Installation: Install new sealing rings
and moisten with compressor oil.
7Release external Torx drive bolt (7)
at fluid reservoir clamp External torx setFig. 172
8Remove fluid reservoir (8) Installation: Note additional oil filling
capacity when replacing the fluid reservoir.*BF83.55-
P-1005-
01A
9Install in the reverse order
NumberDesignationModel Series 163
BA83.30-P-1001-01BHexagon bolt securing refrigerant line to fluid reservoirNM10
NumberDesignationRefrigerant
compressor 7SB16,
refrigerant R134a
in model 163
BF83.55-P-1005-
01AAdditional oil filling
capacity when
replacing fluid
reservoirCompressor oilcm3 10
Specifications for
Operating FluidsSheetBB00.40-P-0362-
00A

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 213 © 2006 Mitchell Repair Information Company, LLC.

Notes on handling refrigerant
R134aAll models fitted with air conditioning
AH83.30-
N-0003-
01A
1.1
Remove
additional
fan (M4)

Models 163.136 /154/157 /172 with air
conditioning or for USA Tempmatic, code
580.AR83.30-
P-5600GH
2.1Remove intercooler Only models 163.113/ 128.
Model 163.113AR09.41-P-
6817MM
Model 163.128AR09.41-P-
6817CD
3Discharge air conditioning system
Installation: Evacuate, refill air
conditioning system and check for proper
operation and tightness.AR83.30-
P-1760GH
4.1Detach lower engine compartment
panelingModel 163.172/174/175AR61.20-
P-1105GH
4.2Remove noise encapsulation Removal: Only remove front part.
Model 163.113/128AR94.30-P-
5400GH
5.1Remove air guide Only if present Located at front
crossmember, in center behind front bumper.
6Unscrew bolts at bottom of
electric fan or fan shroud. Also remove sheet metal nuts.
7Remove attachment parts (20) and
rubber shock absorber(21) Removal: Lower attaching parts and
damper rubber.
Installation: Replace attaching parts.

8Unscrew screw (2) for refrigerant
line at fluid reservoir
*BA83.30-
P-1001-
01B
9Detach refrigerant line from fluid
reservoir Installation: Replace sealing rings and
moisten with compressor oil.
10Unscrew screw (6) for refrigerant
line at condenser(5)
*BA83.30-
P-1002-
01B
11Detach refrigerant line from
condenser (5) Installation: Replace sealing rings and
moisten with compressor oil.
12Detach rubber seal (4) from
radiator (7)
13Remove screws (3)
14.1Remove attachment parts (20) and
rubber shock absorber(21)Model 163.113/128
Upper attaching parts and damper rubber.
Installation: Replace attaching parts.


2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
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Air conditioning system
Refrigerant compressor
REMOVE, INSTALL AIR CONDITIONING CONTROL MODULE - AR83.30-P-6600GH
MODELS 163.113/136/154/172/174 up to 31.8.01 with CODE (580) air conditioning or Tempmatic for
USA
15Remove capacitor (5) upward Installation: Note additional oil filling
capacity when replacing the condenser.*BF83.55-
P-1003-
01A
16Install in the reverse order
NumberDesignationModel 163
BA83.30-P-1001-01BHexagon bolt securing refrigerant line to fluid reservoirNm10
BA83.30-P-1002-01BHexagon bolt for refrigerant line to capacitorNm20
NumberDesignationRefrigerant
compressor 7SB16,
refrigerant R134a
in model 163
BF83.55-P-1003-
01AAdditional oil filling
capacity when
replacing condenserCompressor oilcm3 20
Specifications for
Operating FluidsSheetBB00.40-P-0362-
00A

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 216 © 2006 Mitchell Repair Information Company, LLC.

Remove/install

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

Risk of explosion from welding or
soldering work on closed air
conditioning system. Risk of
poisoning. Inhaling overheated
refrigerant vapors may be toxic. Risk
of injury from skin and eye contact
with liquid refrigerant.Do not carry out any welding work on the
closed air conditioning system or in the
surrounding area. No smoking or open
flames. Wear eye protection and protective
gloves. Work only in well ventilated areas.
Carry out repair work on the air
conditioning system circuit only after the
system has been discharged.
AS83.00-Z-
0001-01A
Procedures if air conditioning system
is damaged or leakingAll models
AH83.30-
N-0004-
01A

Protect air conditioning circuit and
components from moisture when
carrying out repair work
All models fitted with air conditioning
AH83.30-
N-0005-
01A
Notes on handling refrigerant R134aAll models fitted with air conditioning
AH83.30-
N-0003-
01A
1Drain coolant J Engine 112, 113.AR20.00-P-
1142HA
Engine 111.AR20.00-P-
1142HG
Engine 612.963.AR20.00-P-
1142M
2Unscrew coolant compensating
reservoir (1) on firewall Lay compensating reservoir to one side.
3Disconnect coolant delivery/return
hoses for heat exchanger (2) Remove hose clamps from coolant hoses.
4Discharge air conditioning system
Installation: Evacuate air conditioning,
refill and check for proper operation and
leaktightness.AR83.30-P-
1760GH
5Remove cover on expansion valve
(4)
6Remove nut (3) on expansion valve
(4) Replace self-locking nut.
*BA83.30-
P-1003-01B
7Disconnect refrigerant lines from
expansion valve Installation: Install new sealing rings
and moisten with compressor oil.

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:19 PMPage 220 © 2006 Mitchell Repair Information Company, LLC.

AC compressor
Refrigerant compressor
2Remove poly V-belt AR13.22-P-
1202B
3
Unscrew hexagon socket head screw
(1) securing low-pressure refrigerant
line (2) to refrigerant compressor (6) Detach low-pressure refrigerant line (2)
from refrigerant compressor (6).
Installation: Install new sealing rings
and moisten with compressor oil.
*BA83.55-
P-1002-01A
4
Unscrew hexagon socket head screw
(3) securing high-pressure refrigerant
line (4) to refrigerant compressor (6)
*BA83.55-
P-1002-01A
5
Detach refrigerant compressor
connector (A9x1) at refrigerant
compressor (6) Installation: Install new sealing rings
and moisten with compressor oil.
6
Unscrew external Torx drive bolt (5)
from refrigerant compressor (6) at
crankcase
External torx setFig. 172
7Remove refrigerant compressor (6)
from below Installation: Note additional oil filling
capacity when replacing the fluid reservoir.*BF83.55-
P-1005-01A
8Install in the reverse order
9Remove receiver/drier
The fluid reservoir must be replaced
every time after the refrigerant compressor
is removed and installed.AR83.30-P-
6520GH

Installation: Note additional oil filling
capacity when replacing the refrigerant
compressor.*BF83.55-
P-1008-01A
NumberDesignationEngines 111.977,112.942,
112.970,113.942/ 965/981
in MODEL 163
BA83.55-P-1002-01ABolt of refrigerant lines to
AC compressorNM20
NumberDesignationRefrigerant
compressor 7SB16,
refrigerant R134a
in model 163
BF83.55-P-1005-
01AAdditional oil filling
capacity when
replacing fluid
reservoirCompressor oilcm3 10
Specifications for
Operating FluidsSheetBB00.40-P-0362-
00A

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:19 PMPage 229 © 2006 Mitchell Repair Information Company, LLC.

Fig. 186: Identifying External Torx Set (001 589 76 09 00)
MAINTENANCE
REPLACE DUST FILTER FOR HEATIN G/AIR CONDITIONING - AP83.00-P-8381GH
MODEL 163.113 /128 /136 /154 /157 /172 /174 /175
Fig. 187: Identifying Dust Filter

BF83.55-P-1008-
01AAdditional oil filling
capacity when
replacing refrigerant
compressorCompressor oilcm3 20
Specifications for
Operating FluidsSheetBB00.40-P-0362-
00A

Remove/install
1Remove cover below instrument
panel (passenger side) Up to 31.08.99AR68.10-P-
1520GH
Remove/install cover below
instrument panel (right) As of 01.09.99AR68.10-P-
1520GI
2First unlatch retaining clamp (3), then
remove cover(2)
3Withdraw dust filter (1) downwards
(arrows) The dust filter must not be
cleaned; it must be replaced.
4Install in the reverse order

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:19 PMPage 230 © 2006 Mitchell Repair Information Company, LLC.

BT27.00-Z-9999AZ
Technical modifications: Passenger cars: Automatic transmission
30.4.97

MODEL all

Vacuum unit for modulating pressure modified
TRANSMISSION 722.3 /5 as of 15.8.92

BT27.10-P-0001-01A

Secondary pump dispensed with
TRANSMISSION 722.5## ## as of 3652931

BT27.10-P-0002-01A

Control pressure cable with vacuum actuators

standardized
TRANSMISSION 722.3 /4 /5 as of 1.7.93

BT27.10-P-0003-01A

Sump volume modified
TRANSMISSION 722.7## ## as of 0054011

as of 29.7.99

BT27.10-P-0004-01A

Additional shim between deep-groove ball

bearing and output flange
TRANSMISSION 722 ...

BT27.10-P-0005-01A

Oil pan and overflow tube modified
TRANSMISSION 722.901

BT27.10-P-0006-01W

Retaining lug added to electrohydraulic

control module
TRANSMISSION 722.6## # as of 0026195

BT27.19-P-0001-01A

Caps for solenoid valve, new
TRANSMISSION 722.6 as of 1.8.97

BT27.19-P-0003-01A

Oil drain plug on torque converter deleted
TRANSMISSION 722.6## /6## ## as of

1772285 as of 22.9.99

BT27.20-P-0001-01A

Small intermediate plate modified
TRANSMISSION 722.5## ## as of 3987361

as of 15.3.94

BT27.35-P-0001-01A

Installation of a pressure feed valve
TRANSMISSION 722.6## # as of 0027083

BT27.35-P-0002-01A

Primary pump non-return valve dispensed with
TRANSMISSION 722.5## ## as of 3652931

BT27.35-P-0003-01A

Strainer for modulating pressure and shift

pressure control solenoid valve, new
TRANSMISSION 722.6## ## as of 0538312

BT27.35-P-0004-01A

Strainer in inlet to converter lock-up control

solenoid valve, newTRANSMISSION 722.6## ## as of 0485895

BT27.35-P-0005-01A

Feed B1 enlarged
TRANSMISSION 722.5 as of 15.8.91

BT27.40-P-0001-01A

Fluid reservoir deleted
TRANSMISSION 722.7## ## as of 0111673

as of 11.9.00

BT27.40-P-0002-01A

Magnet in oil pan, new part
TRANSMISSION 722.6## ## as of 2871384

as of 17.4.01, 722.7## ## as of 0153700 as

of 9.7.01

BT27.40-P-0003-01A

Piston B1 modified
TRANSMISSION 722.5## ## as of 3746852

as of 15.6.92, 722.3## ## as of 3969172

BT27.50-P-0002-01A

Plain bearing of input shaft changed to an anti-

friction bearing
TRANSMISSION 722 ...

BT27.50-P-0002-02A

One-way valve dispensed with
TRANSMISSION 722.5## ## as of 3652931

BT27.50-P-0007-01A

Outer multiple-disc carrier B1 modified
TRANSMISSION 722.6## # as of 0005900

BT27.50-P-0008-01A

Peak-to-valley height on piston B2 modified
TRANSMISSION 722.6## # as of 0023104

BT27.50-P-0009-01A

Piston B2 changed
TRANSMISSION 722.6## ## as of 0552036

as of 1.8.97

BT27.50-P-0010-01A

Friction bearing in sun wheel of rear planet

gear set converted to anti-friction bearing
TRANSMISSION 722 ...

BT27.50-P-0011-01A

Conversion from 18° to 23° gearing in front

and rear planetary gear system
TRANSMISSION 722 ...

BT27.50-P-0012-01A

Multi-disks for B1, K1 and K3 changed
TRANSMISSION 722.6## ## as of 3947440

as of 2.9.02

BT27.50-P-0013-01A

Thickness of friction and steel disks K3

changed
TRANSMISSION 722.6

BT27.51-P-0001-01A

Thickness of steel plates of B1, K1 and K2

modified
TRANSMISSION 722.6## ## as of 1596205

as of 15.6.99

BT27.51-P-0002-01A
Additional dished washer in multi-plate set K2
TRANSMISSION 722.6## ## as of 1596205

as of 15.6.99

BT27.51-P-0003-01A

Center shift modified
TRANSMISSION 722.6

BT27.60-P-0001-01A

Deletion shift lock cable ignition lock to

transmission
TRANSMISSION 722.7 in MODEL

WDB168.### ## as of 548031 as of 10.1.01

BT27.60-P-0001-02A

Selector lever soldered
TRANSMISSION 722.6 as of 1.5.96

BT27.60-P-0002-01A

Deletion of lever for shift lock cable ignition

lock at transmission
TRANSMISSION 722.700 ## as of 0129631

as of 24.1.01, 722.701 ## as of 0132072 as

of 8.2.01

BT27.60-P-0003-01A

Copyright DaimlerChrysler AG 28.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

GF54.30-P-3003A
Indicator/warning messages triggered via CAN data buses, function
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

Indicator and warning displays triggered via CAN

Low brake fluid level/parking brake indicator lamp (A1e7)
The parking brake signal comes from the traction system

control module.

The brake fluid signal comes directly from the switch (S11)

(except model 163).

Brake pad wear indicator lamp (A1e6)

The parking brake signal comes from the traction system

control module (N47)

Low engine oil level indicator lamp (A1e12)

The oil level signal comes from the injection system control

module (N3).

For vehicles with ASSYST, also refer to document: ASSYST

engine oil monitoring.

Preglow indicator lamp (A1e16)

The signal comes directly from the injection system control

module (N3).

Coolant level and temperature warning lamp (A1e11) model 168

only as of 9.99
The coolant temperature signal comes from the injection

system control module (N3)

-----------------------------------------------------------------------------------------
ABS MIL (A1e17)

The parking brake signal comes from the traction system

control module (N47).

"CHECK ENGINE" MIL (A1e26),


I
only

The signal comes from the injection system control module (N3)

ETS (A1e35) or ASR (A1e22) or ESP (A1e42) MIL
Lamp illuminated if there is a fault in the respective system.

The signal comes from the traction system control module

(N47).

ETS (A1e36) or ASR (A1e21) or ESP (A1e41) warning lamp
The lamp indicates that the respective system is active.

The signal comes from the traction system control module

(N47).

-----------------------------------------------------------------------------------------

Severe leak warning (

I
as of 97 only)

The fuel reserve indicator lamp (A1e4) flashes. The signal

comes from the injection system control module (N3).

The warning takes place at the earliest 30 minutes after cold

start with the engine idling and the vehicle stationary.

Also refer to document: Purge system with leak test, function
Fog lamps indicator lamp (A1e57), model 163 only except
I
)

The signal comes from the All-activity module (AAM, N10)

"LOW RANGE" indicator lamp (A1e53), model 163 only
The signal comes from the transfer case control module (N78)

Active service system (ASSYST)
Engines 112, 113, 611 (engines with oil

sensor)

GF00.20-P-2009A

Engine oil monitoring, function
Model 210 as of 01.03.97 with engine M111,

OM602, OM604, OM605 and OM606

As of 06.97 models 129, 140, 170, 202 except

engines 112, 113, 611

(Valid for engines with low oil level switch).
GF00.20-P-2009B

Displaying coolant temperature, function
Model 168 as of 9.99

GF54.30-P-3020GC

Purge system with leak test, function

GF47.30-P-3016L

Bus systems, overall function

GF54.00-P-0004A

Copyright DaimlerChrysler AG 04.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1