1997 MERCEDES-BENZ ML320 Complete Repair Manual

clock turn signal child seat engine oil capacity airbag window

Load previous 8 pages

Page 3249 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Fig. 1: Identifying Ventilation System Function
Function
The ventilation system ensures:
that the windshield and windows are kept without mist.
there is a supply of fresh air to the vehicl

Page 3250 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual VENTILATION, FUNCTION - GF83.10-P-2000GI
MODEL 163 as of 1.9.01 with CODE (580a) Automatic air conditioning
Air distribution duct
The air distribution duct and the existing air outlets for ventil

Page 3251 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Fig. 2: Identifying Ventilation Function - Air Distribution Duct
Function
The ventilation system ensures:
that the windshield and windows are kept without mist.
that there is a supply of f

Page 3252 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Two main objectives are pursued in heating operation:
rapid heating and even control of in-car temperature
good visibility through windshield and front side windows
In the starting phase the

Two main objectives are pursued in heating operation:
rapid heating and even control of in-car temperature
good visibility through windshield and front side windows
In the starting phase the headroom temperature is deliberately increased, in order to meet the passengers' initial
increased heat requirements. The temperature and the duration depend on the outside temperature and the in-car
temperature.
As far as good visibility is concerned, special control measures to accelerate defrosting of the windows are
taken during the starting phase, depending on the ambient conditions.
In closed-loop operation the footwell vents are mainly used to control the in-car temperature. The center nozzle
is fully closed. The defrosting control measures are reduced.
Cooling operation
During cooling operation the objective is to cool the interior rapidly and evenly control the temperature.
Window fogging is not usually a problem during maximum cooling operation and therefore does not require
special measures.
In the starting phase the headroom temperature is deliberately reduced. The temperature and the duration
depend on the outside temperature and the in-car temperature.
Furthermore, the cooling capacity can be reduced during subsequent operation since continuous partial
recirculating air operation can be achieved.
In closed-loop operation the center nozzles are mainly used to control the in-car temperature.
Bi-level operation (2-level operation)
In bi-level operation the temperature of the interior is controlled by a combination of the footwell nozzles and
the center nozzles.
The objective is to create stratification , which gives the passengers warm feet and a cooler head .
The air distribution shifts in the direction of heating or cooling operation depending on the controller status
trend.
Rear compartment ventilation
The rear compartment nozzles are supplied with temperature-controlled air by the front compartment automatic
air conditioning. The rear compartment nozzle outlet temperature can therefore not be separately controlled.
The air quantity and the air distribution are available as adjustable parameters. The passengers in the rear can
control the ventilation themselves usin
g appropriate buttons.

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:14 PMPage 8 © 2006 Mitchell Repair Information Company, LLC.

Page 3253 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual In automatic mode the air quantity and the air distribution are controlled depending on the status of the
automatic air conditioning.
AIR INLET, LOCATION - GF83.10-P-2100-01GH
The air inlet (1) is

In automatic mode the air quantity and the air distribution are controlled depending on the status of the
automatic air conditioning.
AIR INLET, LOCATION - GF83.10-P-2100-01GH
The air inlet (1) is located at the bottom of the windshield.
Air inlet, location/function GF83.10-P-2138GC
Air ducts, location/task/design GF83.10-P-2139GH
Rear vent, location/task/function GF83.10-P-2143GC
Defroster vent, location/task/function GF83.10-P-2144GC
Center nozzle, location/task/function GF83.10-P-2149GC
Lateral nozzle, location/task/function GF83.10-P-2150GC
Rear nozzle position/task//function GF83.10-P-2151GI
Front footwell air outlet, location/task/function GF83.10-P-2145GC
Rear footwell air outlet, location/task/function GF83.10-P-2146GI
Blower motor, position/task//function GF83.10-P-2170GI
Rear blower motor, position/task/design/function GF83.10-P-2168GI
Blower regulator, location / task / function GF83.10-P-2141GI
Rear ventilation electronic blower regulator location/task/function GF83.10-P-2176GI
Combination filter, location/task/function GF83.10-P-2128GI
Defroster vent flap actuator motor, location/task/ function GF83.10-P-2175GI
Footwell flap actuator motor, location / task / function GF83.10-P-2132GI
Center outlet flap actuator motor, location / task / function GF83.10-P-2172GI
Rear shutoff flap actuator motor, location / task / function GF83.10-P-2171GI
Rear air distribution flap actuator motor, location / task / function GF83.10-P-2173GI
Fresh air/recirculation flap, location / task / function GF83.20-P-2111GC
Fresh air/recirculation flap actuator motor, location / task / function GF83.30-P-2116GC
Blending air flap actuator motor, location / task / function GF83.57-P-2112GI
Blower switch, location/task/design/function GF83.25-P-2100GI
Air distribution switch, location/task/design/ function GF83.25-P-2101GI
Recirculating air push-button, location/task/ function GF83.40-P-2145GI
Air conditioner housing, location / task / design / function GF83.40-P-2105GI

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:14 PMPage 9 © 2006 Mitchell Repair Information Company, LLC.

Page 3254 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Fig. 3: Identifying Air Inlet
AIR DUCT LOCATIONS - GF83.10-P-2101-01GH
The lateral nozzle and side window defroster nozzle (3) air ducts are on the left and right below the instrument
panel.
The w

Page 3255 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Fig. 4: Identifying Air Duct (Up To 31.08.01)
AIR DUCT LOCATIONS - GF83.10-P-2101-01GI
The lateral nozzle and side window defroster nozzle (3) air ducts are on the left and right below the instrumen

Page 3256 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Fig. 5: Identifying Air Duct (As Of 1.09.01)
BLOWER, LOCATION - GF83.10-P-2102-01GH
The blower (M2) is below the instrument panel to th e bottom right of the heater box/evaporator housing (3).

2

Load next 8 pages

Page: < prev 1-10 ... 3217-3224 3225-3232 3233-3240 3241-3248 3249-3256 3257-3264 3265-3272 3273-3280 3281-3288 ... 4136 next >

headrest coolant temperature window wheel torque heater differential