Operating instructions
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 Maintenance tasks
W0500 Check engine oil level (→ Page 96)
W0501 Visually inspect engine for leaks and general condition –
W0502 Check intercooler drain (if applicable) (→ Page 89)
W0503 Check signal ring position of service indicator (→ Page 94)
W0504 Check relief bores of HP fuel pump (→ Page 77)
W0505 Check relief bores of coolant pump(s) (→ Page 110) (→ Page 118)
W0506 Check engine for abnormal running noises, exhaust color
and vibrations
–
W0507 Drain water and dirt from fuel prefilter (if applicable) (→ Page 88)
W0508 Check vacuum gage reading on fuel prefilter (if installed) –
W0525 Check battery-charging generator for contamination, clean if
necessary
(→ Page 121)
W1001 Replace fuel filter or fuel filter element (→ Page 86)
W1002 Check valve clearance (→ Page 71)
W1003 Check drive belt condition and tension, replace as necessary (→ Page 119)
W1006 Replace fuel injectors (→ Page 78)
W1009 Check layer thickness of oil residue, clean and replace filter
sleeve (if fitted), at every oil change, at the latest
(→ Page 103)
W1011 Perform endoscopic inspection of combustion chambers (→ Page 59)
W1036 Replace coolant filter (→ Page 112)
W1046 Crankcase breather: Replace filter or filter element (→ Page 63)
W1047 Check and clean oil indicator filter (→ Page 103)
W1164 Replace filter element and sealing ring depending on degree
of contamination, when the limit (years) is reached, at the lat‐
est
–
W1209 Remove battery-charging generator and clean thoroughly
with compressed air
(→ Page 120)
W1339 Replace grounding device with retainer (retainer only applica‐
ble to 20V)
–
W1463 Inspect general condition of the engine mounting (visual in‐
spection)
–
W1481 Replace additional fuel filter or filter element –
Table 1: Maintenance task reference table [QL1]
40 | Maintenance | M015675/05E 2011-10
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