MTU 12 V 4000 M23F Operating Instructions Manual page 40

Left side of engine, 12V 4000 M, integral cooling
1 B50 (crankcase pressure)
2 B49 (charge-air temp., air
recirculation valve)
Y26 (air recirculation valve
A)
3 B3 (intake air temperature)
40 | Product Summary | MS150068/01E 2014-01
4 B44.1 (turbocharger A
speed)
5 B10 (charge-air pressure)
6 B34.3 (fuel pressure up-
stream of filter)
7 B34.2 (fuel pressure up-
stream of filter)
8 B34.1 (fuel pressure down-
stream of filter)
9 F46 (fuel overflow level)