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INTRODUCTIONMERCEDES 722.5
AUTOMATIC TRANSMISSION SERVICE GROUP18639 SW 107TH AVENUEMIAMI, FLORIDA 33157
(305) 670-4161
1
No part of any ATSG publication may be reproduced, stored in any retrieval system or transmitted in any form or by any means, including but not limited to electronic, mechanical, photocopying, recording or otherwise, without written permission of Automatic Transmission Service Group. This includes all text illustrations, tables and charts.
The information and part numbers contained in this booklet havebeen carefully compiled from industry sources known for their
reliability, but ATSG does not guarantee its accuracy.
Copyright © ATSG 2003
UpdatedJanuary, 2004
DALE ENGLANDFIELD SERVICE CONSULTANT
ED KRUSETECHNICAL CONSULTANT
WAYNE COLONNATECHNICAL SUPERVISOR
PETER LUBANTECHNICAL CONSULTANT
JIM DIALTECHNICAL CONSULTANT
GREGORY LIPNICKTECHNICAL CONSULTANT
JERRY GOTTTECHNICAL CONSULTANT
JON GLATSTEINTECHNICAL CONSULTANT
DAVID CHALKERTECHNICAL CONSULTANT
ROLAND ALVAREZTECHNICAL CONSULTANT
MIKE SOUZATECHNICAL CONSULTANT
GERALD CAMPBELLTECHNICAL CONSULTANT
We wish to thank Mercedes Benzfor the information and illustrationsthat have made this booklet possible.
Mercedes introduced the five speed automatic overdrive transmission in the 1989 model year. At a quick glance it looks the same as the four speed 722.3 and 722.4 models. The extension housing is the quickest way to identify the five speed unit, as this is where the overdrive section was added. The 4-5 and the 5-4 shifts are controlled by a computer module. This manual covers the testing, disassembly, inspection and reassembly of the Mercedes 722.5 unit.