Manuals for Mercury Marine Diesel Engines

(including Mercruiser)

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3 simple steps to make your diesel system reliable and robust

STEP ONE  - Get the manuals for your equipment

Owner, Workshop and Parts Manuals are important documents that should be part of every vessel's library. They contain the detailed information necessary for safe operation, maintenance and correct servicing.  

The manuals on this page are provided for public information and education and can be downloaded for free.  All copyrights belong to copyright holders stated in the documents.

congratulations - by downloading these free manuals you are taking an important step towards making your engine more reliable and robust.


STEP TWO - regular maintenance

Simple, regular maintenance is the easiest, quickest and cheapest way to avoid problems and accelerated engine wear. Most expensive repairs start from a lack of basic maintenance or ignoring small warnings. The work is not difficult - it just needs to be done.

The purpose is so that we can enjoy our boat for all the reasons we bought her. Trust yourself. Do the work regularly and be methodical.


Download free checklists here

if you need clear, easy-to-understand help

300+ drawings

Seeing is Understanding

Marine Diesel Basics 1
Maintain, Winterize and Recommission

•  explains all parts of the marine diesel system - fuel,
lubrication, breathing, electrics, stern gland, propeller etc.
•  140+ tasks, 300+ drawings, 222 pages
•  tasks are fully explained with clear drawings and minimal text
•  all tools & supplies needed are illustrated for each task
•  paperback US$15.99 £10.99 €12.99
•  ebook (kindle, kobo, ibooks, google, epub) US$9.99


STEP THREE - keep a Maintenance Logbook

Keep a detailed and accurate record:

  1. all the work done on your diesel system - what, when  & by who
  2. inventory of serial numbers, component descriptions
  3. early warning of potential problems
  4. time and details of any changes in performance

Use a notebook or use your iPad, tablet or desktop and record the information in an editable PDF directly as you work.

click to enlarge

Maintenance eLogbook

If you've every struggled to keep a logbook, this editable eLogbook may be exactly the help you need.

- "fillable form" PDF
- clickable checklists
- write, edit  details of all tasks completed
- 40+ drawings to help inspections
- all common measurements with live calculators
- just $7.99 196 pages

"the Perfect Logbook" - verified purchaser


Diesel Outboard

Service Bulletins

Mercruiser Bulletin 88-7 Tune-Up Specifications

Service Bulletin 88-7

Tune-up Specifications for



11 pages
publ. March 1989

1 MB

Mercruiser Bulletin 89-2 Overheating

Service Bulletin 89-2

B. M. W. D190/D150 Models Overheating


10 pages
publ. - 1989

1 MB file

Mercruiser Bulletin 89-1 Overheating6

Service Bulletin 89-16

B. M. W. Sterndrive/Inboards Model D636 Overheating


4 pages
publ. - 1989

1 MB file

Mercruiser Bulletin 89-25 Service Manual Info

Service Bulletin 89-25

Information on Service Manuals

1 page
publ. - 1989

<1 MB file

Mercruiser Bulletin 90-9 diesel engine idle rpm

Service Bulletin 90-9

Diesel engine idle rpm


1 page
publ. - 1990

<1 MB file

Mercruiser Bulletin 95-9 Filters & Additives

Service Bulletin 95-0

Diesel Fuel Filters and Additives


1 page
publ. - 1995

<1 MB file

Mercruiser D2.8L D-Tronic diesel engine Service Manual

Service Manual  Number 22

D2.8L D-Tronic 

serial numbers 0K000001 and up

D4.2L D-Tronic 

serial numbers 0K000001 and up


878 pages
publ. February 2002

12 MB file

Mercury 2.0L Inboard Diesel Engine Models Owners Manual

Owner's Manual

2.0 L Series

94 pages
publ. 2013


7 MB file

Mercury Mercruiser Wiring Manual

Wiring Diagrams



32 pages
publ. - no date given


1 MB file

Mercury Bravo Sterndrives Service Manual

Service Manual

Bravo Sterndrives


596 pages
publ. May 2000


12 MB file

Diesel Outboard

Mercury 3.0L Optimax Diesel Outboard

Operator Manual

Optimax 3.0 L Diesel Outboard


14 pages
publ. 2014


5 MB file

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