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Mercedes-Benz Service

Vehicle Climate Control Troubleshooting-Function-Design-Operation Current Passenger Car Models

Service Technology Guide

Daimler AG · After-Sales Engineering MB PC (GSP/TPI) · D-71032 Böblingen

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Christian Barwig

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© 2011 by Daimler AG

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01/2011

Contents

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Vehicle Climate Control - Troubleshooting-Function-Design-Operation - Current Passenger Car Models Preface

Customer reception General

1.1/1Reception protocol for vehicle climate control 1.2/1Stationary heater reception protocol 1.2/3The most common complaints 1.3/1A/C check

1.4/1Stationary heater check

1.4/7

Workshop

Climate control information in detail 2.1/1Stationary heater information in detail 2.1/20Climate control diagnostic tree 2.2/1Stationary heater diagnostic tree

2.3/1

Knowledge base

Model 164 (M-Class)

Model 164.8 (GL-Class)

Model 169/245 (A-Class/B-Class)

Model 171 (SLK-Class)

Contents

Model 203/209 (C-Class/CLK-Class)

Model 204 (C-Class/GLK-Class)

Model 207.3/4 (E-Class Coupe/Cabriolet)

Model 211/219 (E-Class/CLS-Class)

Model 212 (E-Class)

Model 215/220 (CL-Class/S-Class)

Model 216/221 (CL-Class/S-Class)

Model 221.095/195 (S-Class Hybrid)

Model 230 (SL-Class)

Model 251 (R-Class)

b Vehicle Climate Control - Troubleshooting-Function-Design-Operation - Current Passenger Car Models

Preface

b

Vehicle Climate Control - Troubleshooting-Function-Design-Operation - Current Passenger Car Models Dear Reader,

I am delighted to be able to present you with the fourth edition of the Technology Guide for Vehicle Climate Control .

To allow you to work in a more targeted manner, this guide has been updated and added to in close cooper-ation with experienced mechanics from various work-shops and trained staff from service (product support and diagnosis) and development.

Models 212 (E-Class), 207 (E-Class coupe/cabriolet) and 221.095/195 (S-Class Hybrid) have been added to this edition, while the information on existing model series has also been revised.

All of the new features and additional information have been integrated in the existing document, which now provides a full integrated overview of vehicle climate control in Mercedes-Benz vehicles.

As in the previous editions, this document provides summaries of known fault profiles and operating issues and explains these using pictures to help both service advisers and mechanics.

In combination with all of the other media available to you, such as Introduction into Service Manuals, Xentry Diagnostics (XD)/Xentry DAS, WIS and TIPS, the infor-mation in this document is intended to ensure quick, reliable diagnosis by both service advisors and mechanics to help you with your ultimate aim of performing successful and lasting repairs.

This guide should be considered as an aid for everyday use, please use it accordingly.

Yours,

Bernd Heinisch (GSP/TPI)

Daimler AG

After-Sales Engineering Interior MB PC