MTU 8 V 4000 Lx2 xx Operating Instructions Manual page 96

021 – HI T-Exhaust B
Yellow alarm.
Associated parameter 2.0127.931
Cause
Exhaust gas temperature (B
side) after turbine too high (limit
value 1). Incorrect ignition
timing, mixture too lean or too
rich, damage to turbine.
022 – SS T-Exhaust B
Yellow alarm.
Associated parameter 2.0127.932
Cause
Exhaust gas temperature (B
side) after turbine too high (limit
value 2). Incorrect ignition
timing, mixture too lean or too
rich, damage to turbine.
025 – HI P-Diff Lube Oil
Yellow alarm.
Associated parameter 2.0154.931
Cause
Pressure loss via oil filter too
high (limit value 1).
026 – SS P-Diff. Lube Oil
Red alarm. Engine shutdown.
Associated parameter 2.0154.932
Cause
Pressure loss via oil filter too
high (limit value 2).
96 | Troubleshooting | MS150114/01E 2015-03
Corrective action
1. Check exhaust turbocharger.
2. Check ignition timing (→ Page 141).
3. Check mixture setting.
4. Check spark plugs.
Corrective action
1. Check exhaust turbocharger.
2. Check ignition timing (→ Page 141).
3. Check mixture setting.
4. Check spark plugs.
Corrective action
1. Replace oil filter (→ Page 156).
2. If this fault message occurs again after unexpectedly short filter
runtime, check oil filter for deposits, change oil if required
(→ Page 154).
Corrective action
1. Replace oil filter (→ Page 156).
2. If this fault message occurs again after unexpectedly short filter
runtime, check oil filter for deposits, change oil if required
(→ Page 154).