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2.5 Sensors and actuators – Overview
Engine-mounted heat exchanger
Plan view
1 Y27 (turbocharger control
valve)
2 B50 (crankcase pressure)
3 B4.A1-B4B4 (cylinder ex-
haust temperature A1-A4,
B1-B4)
4 Y26 (air recirculation valve)
5 B49 (charge air temperature
from air recirculation valve)
6 B3 (intake air pressure)
7 B5.9 (lube-oil pressure be-
fore turbocharger B)
42 | General Information | MS150109/01E 2015-11
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