7.8.4 Fuel prefilter ‒ Flushing 87
7.8.5 Fuel prefilter – Filter element replacement 89
7.9 Charge-Air Cooling 91
7.9.1 Intercooler – Checking condensate drain line
for coolant discharge and obstruction 91
7.10 Air Filter 92
7.10.1 Air filter – Replacement 92
7.10.2 Air filter – Removal and installation 93
7.11 Air Intake 94
7.11.1 Contamination indicator – Signal ring position
check 94
7.12 Starting Equipment 95
7.12.1 Starter – Condition check 95
7.13 Lube Oil System, Lube Oil Circuit 96
7.13.1 Engine oil – Level check 96
7.13.2 Engine oil – Change 97
7.14 Oil Filtration / Cooling 98
7.14.1 Engine oil filter – Replacement 98
7.14.2 Centrifugal oil filter – Cleaning and filter-
sleeve replacement 100
7.15 Coolant Circuit, General, High-
Temperature Circuit 103
7.15.1 Drain and venting points 103
7.15.2 Engine coolant – Level check 109
7.15.3 Engine coolant – Change 110
7.15.4 Engine coolant – Draining 111
7.15.5 Engine coolant – Filling 112
7.15.6 HT coolant pump — Relief bore check 113
7.15.7 Engine coolant – Sample extraction and
analysis 114
7.15.8 Coolant filter – Replacement 115
7.16 Raw Water Pump with Connections 116
7.16.1 Raw water pump – Relief bore check 116
7.17 Belt Drive 117
7.17.1 Drive belt – Condition check 117
7.18 Battery-Charging Generator 118
7.18.1 Battery-charging generator drive – Drive belt
replacement 118
7.19 Fuel Supply System 119
7.19.1 Water drain valve – Check 119
7.19.2 Differential pressure gauge – Check 120
7.19.3 Water level probe (3-in-1 rod electrode) –
Check 121
7.19.4 Pump capacity – Check 122
7.19.5 Coalescer filter element – Replacement 123
7.20 Wiring (General) for Engine/Gearbox/Unit 125
7.20.1 Engine wiring – Check 125
7.21 Accessories for (Electronic) Engine
Governor / Control System 126
7.21.1 Engine governor and connectors – Cleaning 126
7.21.2 Engine governor – Checking plug-in
connections 127
7.21.3 EMU – Checking plug-in connections 128
7.21.4 Engine governor – Carry out self-test 129
7.21.5 EMU and connectors – Cleaning 130
7.21.6 ECU 7 engine governor – Removal and
installation 131
7.21.7 Engine monitoring unit – Removal and
installation 132
8 Appendix A
8.1 Abbreviations 133
8.2 MTU contacts/service partners 136
9 Appendix B
9.1 Special Tools 137
9.2 Index 140
4 | Table of Contents | MS150062/01E 2012-01
DCL-ID: 0000017103 - 001
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