MTU 12 V 4000 M23F Operating Instructions Manual page 100

25 – HI P-Diff. Lube Oil
Differential oil pressure at oil filter too high (limit value 1)
Yellow alarm; warning
Cause
Oil filter not functioning
correctly.
26 – HI P-Diff. Lube Oil
Differential oil pressure at oil filter too high (limit value 2)
Red alarm; engine shutdown
Cause
Oil filter not functioning
correctly.
27 – HI Level Leakage Fuel
Leak-off fuel level too high (limit value 1)
Yellow alarm; warning
Cause
Fuel lines leaking.
29 – HI ETC Idle Speed Too High
Yellow alarm; warning
Cause
Idling speed of one of the
secondary turbochargers is too
high.
30 – SS Engine Overspeed
Engine overspeed (limit value 2)
Red alarm; engine shutdown
Cause
No fuel injection.
100 | Troubleshooting | MS150068/01E 2014-01
ZKP-Number: 2.0154.931
Corrective action
u Replace oil filter (→ Page 223).
ZKP-Number: 2.0154.932
Corrective action
1. Replace oil filter (→ Page 223).
2. Contact Service.
ZKP-Number: 2.0151.931
Corrective action
1. Check fuel system.
2. Contact Service.
ZKP-Number: 1.8004.206
Corrective action
u Contact Service.
ZKP-Number: 2.2510.932
Corrective action
1. Restart engine. Fault can possibly be eliminated by a restart
(→ Page 77).
2. Contact Service.