MTU 20V4000Lx2x Operating Instructions Manual page 100

051 – HI T-Lube Oil
Yellow alarm.
Associated parameter 2.0125.931
Cause
Engine oil temperature after oil
heat exchanger too high (limit
value 1). Oil heat exchanger
contaminated, coolant
temperature too high. Oil volume
flow insufficient.
052 – SS T-Lube Oil
Red alarm. Engine shutdown.
Associated parameter 2.0125.932
Cause
Engine oil temperature after oil
heat exchanger too high (limit
value 2). Oil heat exchanger
contaminated, coolant
temperature too high. Oil volume
flow insufficient.
053 – HI T-Intake Air
Yellow alarm.
Associated parameter 2.0123.931
Cause
Intake air temperature too high
(limit value 1).
054 – HIHI T-Intake Air
Yellow alarm.
Associated parameter 2.0123.932
Cause
Intake air temperature too high
(limit value 2).
057 – LO P-Coolant
Yellow alarm.
Associated parameter 2.0101.921
Cause
Coolant pressure after engine too
low (limit value 1). Insufficient
volume flow, static pressure too
low.
100 | Troubleshooting | MS150122/00E 2015-07
Corrective action
1. Check engine coolant circuit.
2. Check oil heat exchanger.
3. Check oil level (→ Page 155).
Corrective action
1. Check engine coolant circuit.
2. Check oil heat exchanger.
3. Check oil level (→ Page 155).
Corrective action
u Check ventilation system.
Corrective action
1. Check ventilation system.
2. Reduce power.
Corrective action
u Check engine coolant circuit (pressure and flow).