5 Maintenance
5.1 Maintenance task reference table [QL1]
The maintenance tasks and intervals for this product are defined in the Maintenance Schedule. The
Maintenance Schedule is a stand-alone publication.
The task numbers in this table provide reference to the maintenance tasks specified in the Maintenance
Schedule.
Task
Measures
W0500
Check engine oil level
(→ Page 94)
W0501
Visually inspect engine for leaks and general condition
(→ Page 44)
W0502
Check intercooler drain (if applicable)
(→ Page 44)
W0503
Check maintenance indicator of air filter
(→ Page 44)
W0505
Check relief bores of coolant pump(s)
(→ Page 44)
W0506
Check engine for abnormal running noises, exhaust color
and vibrations
(→ Page 44)
W0507
Drain water and dirt from fuel prefilter (if fitted)
(→ Page 44)
W0508
Check contamination indicator of fuel prefilter (if fitted)
(→ Page 44)
W1001
Replace fuel filter or fuel filter element
(→ Page 81)
W1002
Check valve clearance
(→ Page 73)
W1003
Check drive belt condition and tension, replace if necessary
(→ Page 114)
W1005
Replace air filter
(→ Page 90)
W1006
Replace fuel injectors
(→ Page 77)
W1008
Replace engine oil filter at each oil change or when the time
limit (years) is reached, at the latest
(→ Page 96)
W1009
Check layer thickness of oil residue, clean and replace filter
sleeve (if fitted) during every oil change at the latest (if fitted)
(→ Page 98)
W1011
Perform endoscopic inspection of combustion chambers
(→ Page 66)
W1036
Replace coolant filter
(→ Page 112)
W1139
Replace paper or knitted fabric insert (if installed) of oil mist
separator
(→ Page 71)
W1140
Clean wire meshes of crankcase breather
(→ Page 70)
W1244
Check operation of rod electrode (if fitted)
(→ Page 118)
W1245
Differential-pressure gauge, check alarm function (if applica‐
ble)
(→ Page 117)
W1246
Check pump performance (if applicable)
(→ Page 119)
Table 1: Maintenance task reference table [QL1]
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