MTU 12V4000C*5 series, Operating Instructions Manual

Page: 87 / 305

44 – LO Coolant Level Intercooler
Cause Corrective action
Coolant level in LT circuit at
switch F57 is too low. 1. Check charge-air coolant level (→ Page 227).
2. Check relief bore of charge-air coolant pump (→ Page 236).
3. Visually check coolant circuit for leaks.
4. Contact Service.
51 – HI T-Lube Oil
Cause Corrective action
The lube oil temperature at sensor
B7 has violated limit value 1. Lube
oil temperature is too high. 1. Reduce power.
2. Check operation of cooler and fan (plant side).
3. Check engine coolant level (→ Page 216).
4. Contact Service.
52 – SS T-Lube Oil
Cause Corrective action
The lube oil temperature at sensor
B7 has violated limit value 2. Lube
oil temperature is too high. 1. Check operation of cooler and fan (plant side).
2. Check engine coolant level (→ Page 216).
3. Contact Service.
57 – LO P-Coolant
Cause Corrective action
The coolant pressure at sensor
B16.has violated limit value 1.
Coolant pressure is too low. 1. Check relief bore of engine coolant pump (→ Page 224).
2. Check engine coolant level (→ Page 216).
3. Contact Service.
58 – SS P-Coolant
Cause Corrective action
The coolant pressure at sensor
B16.has violated limit value 2.
Coolant pressure is too low. 1. Check relief bore of engine coolant pump (→ Page 224).
2. Check engine coolant level (→ Page 216).
3. Contact Service.
63 – HI P-Crank Case
Cause Corrective action
The crankcase pressure at sensor
B50 has violated upper limit value
1. The crankcase pressure is too
high. 1. Stop engine.
2. Contact Service.
MS15041/03E 2018-08 | Troubleshooting | 85
TIM-ID: 0000065298 - 004