
8.9.2 Fuel prefilter with internal electrical priming
pump – Draining 186
8.9.3 Fuel prefilter with internal electrical priming
pump – Filter element replacement 187
8.9.4 Additional fuel filter – Replacement 190
8.10 Charge-Air Cooling 191
8.10.1 Charge-air cooler – Leak check 191
8.11 Exhaust Gas Recirculation 192
8.11.1 Exhaust flaps overview ‒ 12V and 16V 192
8.11.2 Exhaust flaps – Checking coupling rod
clearance and function 195
8.11.3 Exhaust flaps – Coupling rod replacement 197
8.12 Starting Equipment 200
8.12.1 Starter – Condition check 200
8.13 Lube Oil System, Lube Oil Circuit 201
8.13.1 Engine oil level – Check at sight glass 201
8.13.2 Engine oil – Level check with oil dipstick 202
8.13.3 Engine oil – Change 204
8.13.4 Engine oil – Sample extraction and analysis 206
8.14 Oil Filtration / Cooling 208
8.14.1 Engine oil filter – Replacement 208
8.14.2 Oil indicator filter – Cleaning and check 210
8.14.3 Centrifugal oil filter – Cleaning and filter-
sleeve replacement 213
8.15 Coolant Circuit, General, High-Temperature
Circuit 216
8.15.1 Engine coolant – Level check 216
8.15.2 Engine coolant – Change 218
8.15.3 Engine coolant – Draining 219
8.15.4 Engine coolant – Filling 221
8.15.5 Engine coolant pump – Relief bore check 224
8.15.6 Engine coolant – Sample extraction and
analysis 225
8.15.7 Coolant expansion tank valve cover –
Replacement 226
8.16 Low-Temperature Circuit 227
8.16.1 Charge-air coolant level – Check 227
8.16.2 Charge-air coolant – Change 229
8.16.3 Charge-air coolant – Draining 230
8.16.4 Charge-air coolant – Filling 233
8.16.5 Charge-air coolant pump – Relief bore check 236
8.17 Belt Drive 237
8.17.1 Drive belt – Condition check 237
8.18 Battery-Charging Generator 238
8.18.1 Battery-charging generator – Check 238
8.18.2 Battery-charging generator drive – Drive belt
replacement 239
8.19 Fan Drive 240
8.19.1 Fan drive – Drive belt tension check /
adjustment 240
8.19.2 Fan drive – Drive belt replacement 242
8.19.3 Fan drive – Drive belt tension
check / adjustment 243
8.19.4 Fan drive – Drive belt replacement 245
8.20 Engine Mounting / Support 247
8.20.1 Engine mounting – Check 247
8.20.2 Engine mounting – Resilient mount check 249
8.21 Wiring (General) for Engine/Gearbox/Unit 251
8.21.1 Engine cabling – Check 251
8.22 Accessories for (Electronic) Engine
Governor / Control System 252
8.22.1 Resetting CDC parameter and entering IIG
with DiaSys® 252
8.22.2 Actuators – Visual inspection and test 253
8.22.3 Engine governor and connector – Cleaning 255
8.22.4 Engine governor plug connections – Check 256
8.22.5 NOx sensor – Replacement 257
8.22.6 Lambda sensor – Replacement 259
9 Manufacturer's Documentation
9.1 Prefilter Installation, Operation 263
9.2 Prefilter Installation Instructions 275
10 Appendix A
10.1 Abbreviations 287
10.2 MTU Contact/Service Partners 290
11 Appendix B
11.1 Special Tools 291
11.2 Index 301
4 | Table of Contents | MS15041/03E 2018-08
DCL-ID: 0000038896 - 005