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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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  • Sep 10, 2020

    Publication Thumbnail
    SL2020-702
    Overspeed incident with disintegrated flywheel
    PDF, 2.81 MB
  • Sep 04, 2020

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    SL2020-701
    Third-party spindle guides and nozzles - increased risk of scavenge space fire
    PDF, 1.37 MB
  • Aug 11, 2020

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    SL2020-700
    Retrofitting of PLC (Replaces SL2012-564/JXN)
    PDF, 1.05 MB
  • Jul 07, 2020

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    SL2020-699
    Regular operation of EGR systems - EGRBP and EGRTC systems
    PDF, 520.73 KB
  • Jul 06, 2020

    Publication Thumbnail
    SL2020-698
    CPR piston ring pack
    PDF, 1.16 MB
  • Jun 10, 2020

    Publication Thumbnail
    SL2020-697
    Engine room crane safety
    PDF, 376.26 KB
  • Aug 11, 2020

    Publication Thumbnail
    SL2020-696
    Inlet pressure settings for air starters
    PDF, 626.02 KB
  • May 27, 2020

    Publication Thumbnail
    SL2020-695
    Regular operation of the SCR system to maintain correct functionality
    PDF, 627.45 KB
  • May 15, 2020

    Publication Thumbnail
    SL2020-694
    Cylinder and system oils
    PDF, 502.21 KB
  • Mar 24, 2020

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    SL2020-693
    Cybersecurity - MAN EngineVault
    PDF, 626.49 KB

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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