021 – HI T-Exhaust B
Yellow alarm.
Associated parameter 2.0127.931
Cause
Corrective action
Exhaust gas temperature (B side)
after turbine too high (limit value
1). Incorrect ignition timing,
mixture too lean or too rich,
damage to turbine.
1. Check exhaust turbocharger.
2. Check ignition timing (→ Page 176).
3. Check mixture setting.
4. Check igniters.
022 – SS T-Exhaust B
Yellow alarm.
Associated parameter 2.0127.932
Cause
Corrective action
Exhaust gas temperature (B side)
after turbine too high (limit value
2). Incorrect ignition timing,
mixture too lean or too rich,
damage to turbine.
1. Check exhaust turbocharger.
2. Check ignition timing (→ Page 176).
3. Check mixture setting.
4. Check igniters.
025 – HI P-Diff. Lube Oil
Yellow alarm.
Associated parameter 2.0154.931
Cause
Corrective action
Pressure loss via oil filter too high
(limit value 1).
1. Replace oil filter (→ Page 191).
2. If this fault message occurs again after unexpectedly short filter
runtime, check oil filter for deposits, change oil if required
(→ Page 189).
026 – SS P-Diff. Lube Oil
Red alarm. Engine shutdown.
Associated parameter 2.0154.932
Cause
Corrective action
Pressure loss via oil filter too high
(limit value 2).
1. Replace oil filter (→ Page 191).
2. If this fault message occurs again after unexpectedly short filter
runtime, check oil filter for deposits, change oil if required
(→ Page 189).
124 | Troubleshooting | MS150104/03E 2017-09
TIM-ID: 0000038612 - 003
