INTRODUCTION MERCEDES 722.5 Updated January, 2004 2004 Mercedes introduced introduced the five speed automatic overdrive transmission in the 1989 model year. At a quick glance it looks the same as the four speed speed 722.3 and 722.4 models. The extension housing housing is the quickest way to identify the five speed unit, as this is where the overdrive overdrive section was added. The 4-5 and the 5-4 shifts are controlled by a computer module.

This manual covers the testing, disassembly, disassembly, inspection and reassembly of the Mercedes 722.5 unit. We wish to thank Mercedes Benz for the information and illustrations illustrations that have made this booklet possible. 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 Automatic Transmission Transmission Service Group. This includes all text illustrations, tables and charts.

The information and part numbers contained in this booklet have been carefully compiled from industry sources known for their reliability, but ATSG ATSG does not guarantee its accuracy.

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