2010 LOTUS EXIGE

Typical onset: 30,000-70,000 mi

Symptoms: Knocking or ticking from bottom end during hard cornering, Low oil pressure warning during high-G maneuvers, Catastrophic bearing failure with metal in oil, Spun rod bearings after track days

Fix: The factory oil pan and pickup design allows oil to slosh away from the pickup during sustained high-G cornering, starving the bearings. Once damage occurs, requires full engine rebuild with new bearings, possibly pistons and crank depending on damage. Prevention requires aftermarket baffled oil pan or accusump system (3-4 hours to install preventively). Full rebuild is 25-35 hours labor.

Estimated cost: $8,000-15,000

Typical onset: 50,000-90,000 mi

Symptoms: Rising intake air temperatures, Heat soak after spirited driving, Coolant leaks from heat exchanger, Intercooler pump making noise or not operating, Reduced power output

Fix: The water-to-air intercooler system uses a small electric pump and heat exchanger that fail from age and heat cycling. Pump bearings seize or impellers break. Heat exchanger cores corrode internally. Pump replacement is 2-3 hours, heat exchanger is 4-6 hours due to clamshell access requirements.

Estimated cost: $800-2,200

Typical onset: 60,000-100,000 mi

Symptoms: Transmission fluid puddles under car, Burning smell from fluid on exhaust, Low transmission fluid level, Visible fluid weeping from cooler lines

Fix: Hard lines and rubber hoses running to the transmission cooler crack from heat and vibration. Lines are routed near exhaust components. Requires clamshell removal for proper access. Replacement takes 3-5 hours including fluid refill and air bleeding.

Estimated cost: $600-1,200

Typical onset: 40,000-80,000 mi

Symptoms: Excessive drivetrain movement during acceleration/deceleration, Clunking when engaging clutch, Vibration transmitted to chassis, Visible cracking or separation of rubber mounts

Fix: The engine and transmission mounts wear from the combination of track use, heat, and the lightweight chassis transmitting more shock. Upper engine mount and rear transmission mount are most common failures. Replacement requires 2-4 hours depending on which mounts. Clamshell access needed for some positions.

Estimated cost: $500-1,000

Typical onset: 50,000-100,000 mi

Symptoms: Hesitation under heavy acceleration, Power loss at high RPM, Difficulty starting when hot, Fuel starvation during hard cornering

Fix: The fuel filter is often neglected and clogs from tank debris or ethanol-related deposits. Located in a difficult position requiring partial clamshell removal. The fuel tank can also develop internal coating breakdown that contaminates the system. Filter replacement is 2-3 hours, tank cleaning/replacement is 6-8 hours.

Estimated cost: $400-2,500

Symptoms: Not a failure itself but affects repair costs for nearly everything

Fix: The Exige's clamshell body design means the rear bodywork must be removed for access to engine, transmission, fuel system, and most mechanical components. This adds 2-4 hours to virtually any repair beyond basic maintenance. Many shops inexperienced with Lotus will quote high or refuse the work. Critical to find a Lotus-familiar technician.

Estimated cost: $300-600