MTU 12 V 4000 M23F Operating Instructions Manual page 103

52 – SS T-Lube Oil
Lube oil temperature too high (limit value 2)
Red alarm; engine shutdown
Cause
Insufficient oil.
57 – LO P-Coolant
Coolant pressure too low (limit value 1).
Yellow alarm; warning
Cause
Leak in coolant circuit.
58 – SS P-Coolant
Coolant pressure too low (limit value 2)
Red alarm - engine stop or reduced injection quantity
Cause
Leak in coolant circuit.
59 – SS T-Coolant L3
Coolant temperature too high / low (limit value 3)
Red alarm; forced idle
Cause
Coolant circuit not functioning
correctly (e.g. damage, leaks,
low coolant level).
ZKP-Number: 2.0125.932
Corrective action
1. Check engine oil level (→ Page 218).
2. Contact Service.
ZKP-Number: 2.0101.921
Corrective action
1. Check coolant level (→ Page 234).
2. Check coolant circuit.
ZKP-Number: 2.0101.922
Corrective action
1. Check coolant level (→ Page 234).
2. Check coolant circuit.
ZKP-Number: 2.0120.933
Corrective action
1. Activate fan emergency operating mode if required.
2. Allow engine to cool down.
3. Check coolant cooler, clean if dirty.
4. Acknowledge alarm.
5. Restart engine (→ Page 77).
6. Contact Service.
MS150068/01E 2014-01 | Troubleshooting | 103