7.8.4 Fuel prefilter – Flushing 85
7.8.5 Fuel prefilter – Filter element replacement 87
7.9 Charge-Air Cooling 89
7.9.1 Intercooler – Checking condensate drain line
for coolant discharge and obstruction 89
7.10 Air Filter 90
7.10.1 Air filter – Replacement 90
7.10.2 Air filter – Removal and installation 91
7.11 Air Intake 92
7.11.1 Contamination indicator – Signal ring position
check (optional) 92
7.12 Starting Equipment 93
7.12.1 Starter – Condition check 93
7.13 Lube Oil System, Lube Oil Circuit 94
7.13.1 Engine oil – Level check 94
7.13.2 Engine oil – Change 95
7.14 Oil Filtration / Cooling 96
7.14.1 Engine oil filter – Replacement 96
7.14.2 Centrifugal oil filter – Cleaning and filter-
sleeve replacement 98
7.15 Coolant Circuit, General, High-
Temperature Circuit 101
7.15.1 Drain and venting points 101
7.15.2 Engine coolant – Level check 106
7.15.3 Engine coolant – Change 107
7.15.4 Engine coolant – Draining 108
7.15.5 Engine coolant – Filling 109
7.15.6 HT coolant pump — Relief bore check 110
7.15.7 Engine coolant – Sample extraction and
analysis 111
7.15.8 Coolant filter – Replacement 112
7.16 Raw Water Pump with Connections 113
7.16.1 Raw water pump – Relief bore check 113
7.17 Belt Drive 114
7.17.1 Drive belt – Condition check 114
7.18 Battery-Charging Generator 115
7.18.1 Battery-charging generator drive – Drive belt
replacement 115
7.19 Fuel Supply System 116
7.19.1 Water drain valve – Check 116
7.19.2 Differential pressure gauge – Check 117
7.19.3 Water level probe (3-in-1 rod electrode) –
Check 118
7.19.4 Pump capacity – Check 119
7.19.5 Coalescer filter element – Replacement 120
7.20 Wiring (General) for Engine/Gearbox/Unit 122
7.20.1 Engine wiring – Check 122
7.21 Accessories for (Electronic) Engine
Governor / Control System 123
7.21.1 Engine governor and connectors – Cleaning 123
7.21.2 Engine governor – Checking plug-in
connections 124
7.21.3 EMU – Checking plug-in connections 125
7.21.4 Engine governor – Carry out self-test 126
7.21.5 EMU and connectors – Cleaning 127
7.21.6 ECU 7 engine governor – Removal and
installation 128
7.21.7 Engine monitoring unit – Removal and
installation 129
8 Appendix A
8.1 Abbreviations 130
8.2 MTU contacts/service partners 133
9 Appendix B
9.1 Special Tools 134
9.2 Index 140
4 | Table of Contents | M015700/06E 2012-06
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