MTU 8 V 4000 Lx2 xx Operating Instructions Manual page 114

499 – SD T-Charge Mix
Red alarm.
Associated parameter 1.8004.632
Cause
Mixture temperature sensor
defective, short circuit or wire
break.
511 – HIHI P-Charge Mix A
Red alarm. Engine shutdown.
Associated parameter 2.0181.932
Cause
Mixture pressure on A side too
high (limit value 2).
512 – HIHI P-Charge Mix B
Red alarm. Engine shutdown.
Associated parameter 2.0182.932
Cause
Mixture pressure on B side too
high (limit value 2).
513 – SD P-Coolant Diff
Red alarm.
Associated parameter 1.8004.610
Cause
Coolant differential pressure
sensor defective, short circuit or
wire break.
515 – AL Starter Not Engaged
Yellow alarm.
Associated parameter 1.8004.123
Cause
Gas temperature sensor
defective, short circuit or wire
break.
114 | Troubleshooting | MS150114/01E 2015-03
Corrective action
u Check sensor and cabling (B73), replace as necessary. Fault is
rectified following engine restart.
Corrective action
1. Check emissions.
2. Check ignition timing (→ Page 141).
3. Check exhaust back pressure.
4. Check valve clearance (→ Page 145).
5. Check throttle.
6. Check mixture coolant system.
Corrective action
1. Check emissions.
2. Check ignition timing (→ Page 141).
3. Check exhaust back pressure.
4. Check valve clearance (→ Page 145).
5. Check throttle.
6. Check mixture coolant system.
Corrective action
u Check sensors and cabling (B16.1, B16.3), replace as
necessary. Fault is rectified following engine restart.
Corrective action
1. Not installed in all engine versions (optional).
2. Check sensor and cabling (B38), replace as necessary.