Cooling system failure
Symptoms
Engine overheats, temperature gauge climbs into the red, coolant boils over. In severe cases, head gaskets fail and coolant enters the oil.
Cause
The V12 generates enormous heat and the cooling system is barely adequate even when everything works. Twin electric fans, a viscous coupling fan (some models), a complex network of hoses, a header tank, and two thermostats all have to function perfectly. The header tank cracks (a known weakness), hoses perish internally (collapsing and restricting flow), fan relays fail, and the radiator clogs with scale. Any single failure can cascade into overheating.
Fix
Comprehensive cooling system overhaul.
Replace every hose (there are dozens), fit a new aluminium radiator if the original is tired, replace the header tank (aluminium aftermarket units are available and far superior to the original plastic), check both thermostats, verify both electric fans operate (including the relay), and flush the system thoroughly.
Budget $3,000-5,000 AUD for a complete cooling system refresh.
This is non-negotiable for Australian ownership.
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