MWM Acteon Workshop Manual page 209

Nr. Probable Cause
40 Incorrect piston height in relation to the
engine block surface
41 Damaged fan
42 Defective engine bracket cushions
43 Flywheel or flywheel housing misaligned
44 Defective thermostat
45 Water galleries restriction / liners with crusts
46 Fan belts loosen
47 Radiator blocked outside or inside
48 Defective water pump
49 Carter breathe blocked
50 Oil cooler leakage
51 Lack of water in the cooling system
52 Oil pump suction pipe sieve blocked
53 Valve spring broken
54 Turbocharger damaged or needing
cleanness
55 Leakages through turbocharger oil seals
56 Exhaust manifold linked to turbocharger
57 Intake air low pressure
58 Outer leakages (gaskets, seals, etc.)
59 Inadequate engine inclination angle
9.612.0.006.7160 - 05/04
Symptoms Table (Continuation)
What to do
Use correct pistons
Change
Change / Correct assembly
Align
Change
Clean the system
Tension
Clean
Change
Clean
Correct
Complete level
Clean
Change
Repair or clean
Change seals
Change gaskets
Check turbocharger. Correct leakages
Correct
Correct
Failure Diagnosis