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This is a collection of technical papers published by MAN Energy Solutions, Copenhagen/Holeby, Denmark, covering both MAN B&W two-stroke and MAN four-stroke diesel engines.

Our technical papers provide information on new engine developments and trends, service experience, important aspects of engine management and maintenance, and emissions requirements compliance and development, etc. 

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  • Dec 11, 2019

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    SL2019-688
    MAN SCR NOx sensors
    PDF, 549.08 KB
  • Dec 11, 2019

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    SL2019-687
    Liner jacket cooling water system update - for operation on low-sulphur fuels
    PDF, 1.52 MB
  • Dec 04, 2019

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    SL2019-686
    Cylinder and system oils
    PDF, 516.99 KB
  • Nov 28, 2019

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    SL2019-685
    Condition-based overhaul Cermet-coated piston rings
    PDF, 1.10 MB
  • Nov 13, 2019

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    SL2019-684
    Piston cleaning ring Update of the instruction for piston cleaning ring replacement
    PDF, 909.10 KB
  • Dec 02, 2019

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    SL2019-683
    New release of spare part plate for engine safety filter
    PDF, 706.69 KB
  • Nov 05, 2019

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    SL2019-682
    New recommendation for grinding angle of exhaust valve spindle
    PDF, 607.87 KB
  • Sep 23, 2019

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    SL2019-681
    Guiding overhaul intervals - replaces SL2017-650/SRJ
    PDF, 1023.61 KB
  • Aug 27, 2019

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    SL2019-680
    Hydraulic tightening pressure for connecting rod
    PDF, 248.23 KB
  • Aug 19, 2019

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    SL2019-679
    Propeller Maintenance Concept
    PDF, 806.29 KB

All data provided on this site is for information purposes only, explicitly non-binding and subject to changes without further notice.

Unless otherwise stated, the copyright and any other rights in the contents of the Service Letters available through our website, including any images and text, are owned by MAN Diesel & Turbo.

For the avoidance of doubt, you must not adapt, edit, change, transform, publish, republish, distribute, redistribute or show in public the Service Letters (in any form or media) without the prior written consent of MAN Diesel & Turbo.

Permission is granted to:

1) download, display or print material for personal use or use within an individual organisation and for a non- commercial purpose;

2) create links to these pages;

3) reproduce short extracts provided the source is stated. 

Requests for further authorisation regarding proposed usage of the information provided should be addressed to: 

MAN Diesel & Turbo
Teglholmsgade 41
2450 Copenhagen SV
or by email to 

peterd.petersen@man.eu