7.12.2 Engine coolant – Level check
81
7.12.3 Engine coolant – Change
82
7.12.4 Engine coolant ‒ Draining
83
7.12.5 Engine coolant – Filling
84
7.12.6 Engine coolant pump – Relief bore check
86
7.12.7 Engine coolant – Sample extraction and
analysis
87
7.13 Low-Temperature Circuit
88
7.13.1 Intercooler – Venting and draining
88
7.13.2 Charge-air coolant – Level check
89
7.13.3 Charge-air coolant – Change
90
7.13.4 Charge-air coolant – Filling
91
7.13.5 Charge-air coolant ‒ Draining
93
7.13.6 Charge-air coolant pump – Relief bore check
94
7.14 Belt Drive
95
7.14.1 Drive belt – Condition check
95
7.14.2 Drive belt – Tension check
96
7.14.3 Drive belt – Tension adjustment
97
7.14.4 Drive belt – Replacement
98
7.15 Battery-Charging Generator
99
7.15.1 Battery-charging generator drive – Drive belt
replacement
99
7.16 Fuel Supply System
100
7.16.1 Water drain valve – Check
100
7.16.2 Differential pressure gauge – Check
101
7.16.3 Water level probe (3-in-1 rod electrode) –
Check
102
7.16.4 Pump capacity – Check
103
7.16.5 Coalescer filter element – Replacement
104
7.17 Engine Governor
106
7.17.1 Engine governor – Overview
106
7.17.2 Engine governor – Removal and installation
107
7.17.3 Engine governor plug connections – Check
108
7.18 Wiring (General) for Engine/Gearbox/Unit
109
7.18.1 Engine wiring – Check
109
7.18.2 Lambda, NOx and humidity sensors –
Overview
110
7.18.3 Lambda sensor – Replacement
111
7.18.4 NOx sensor – Replacement
113
7.18.5 Humidity sensor – Replacement
115
7.19 Accessories for (Electronic) Engine
Governor / Control System
117
7.19.1 Engine governor and connectors – Cleaning
117
7.19.2 Engine governor plug connections – Check
118
8 Appendix A
8.1 List of abbreviations
119
8.2 MTU contact persons/service partners
121
9 Appendix B
9.1 Special Tools
122
9.2 Index
131
4 | Table of Contents | MS150111/01E 2014-05
DCL-ID: 0000027885 - 004