1997 MERCEDES-BENZ ML350 Complete Repair Manual

Page 3425 of 4133

MERCEDES-BENZ ML350 1997  Complete Repair Manual Fig. 151: Identifying Heat Exchanger Components 
REPLACE BULBS IN PUSH-BUTTON CONTROL MODULE - AR83.25-P-1123GH 
MODELS 163.113/154/174/136/172 up to 31.8.01
 
 Remove/Install  
1Remove AC housing AR8

Page 3426 of 4133

MERCEDES-BENZ ML350 1997  Complete Repair Manual Fig. 152: Identifying Push-button Control Module Components 
Commercially available tools 
REMOVE AND INSTALL SERIES RESISTOR FOR HEATER BLOWER - AR83.25-P-1250GH 
MODEL 163.113 /128 /136 /154 /157 /1

Page 3427 of 4133

MERCEDES-BENZ ML350 1997  Complete Repair Manual Fig. 153: Identifying Series Resistor For Heater Blower Components (Shown On Model 163 Up To VIN 
A289564, X754619) 
REMOVE/INSTALL COVER AT AIR INTAKE - AR83.25-P-1405GH 
MODEL 163.113 /128 /136 /154

Page 3428 of 4133

MERCEDES-BENZ ML350 1997  Complete Repair Manual Fig. 154: Identifying Components For Cover At Air Intake - Model 
163.113 /128 /136 /154 /157 /172 /174 /175 
CHECKING AIR CONDITIONING SYSTEM FOR LEAKAGE - AR83.30-D-1209-01A 
Workshop equipment

Page 3429 of 4133

MERCEDES-BENZ ML350 1997  Complete Repair Manual 1. Start vehicle engine and switch on air conditioning system.  
2. Check entire air conditioning circuit using leak detector probe (1). 
Remain for some time in areas where leaks are suspected. 
  
S

Page 3430 of 4133

MERCEDES-BENZ ML350 1997  Complete Repair Manual Fig. 156: Identifying Quick Test On Air Conditioning System - Shown On Models 901, 902, 903, 904 
Shown on models 901, 902, 903, 904  
 Prerequisites for 
testing  
1Place vehicle with open 
windows i

Page 3431 of 4133

MERCEDES-BENZ ML350 1997  Complete Repair Manual Commercially available tools 
Workshop equipment 
DRAINING, EVACUATING AND REFILLING AIR CONDITIONING, CHECKING FUNCTION AND CHECKING FOR 
LEAKS - AR83.30-P-1760GH 
MODELS 163.113 /128 /136 /154 /157

Page 3432 of 4133

MERCEDES-BENZ ML350 1997  Complete Repair Manual Fig. 157: Checking Draining, Evacuating And Refilling Air Conditioning Function 
 Draining  
 
Risk of explosion from welding or 
soldering work on closed air conditioning 
system. Risk of poisoning .