2010 BENTLEY FLYING SPUR

Typical onset: 60,000-100,000 mi

Symptoms: Excessive oil consumption (more than 1 qt per 1,000 miles), Blue smoke on startup or acceleration, Misfires and rough idle as condition progresses, Metal contamination in oil analysis

Fix: The W12's piston ring lands can crack due to carbon buildup and thermal stress, leading to oil burning and eventual catastrophic failure. Repair requires complete engine removal and rebuild with updated pistons, rings, bearings, and typically head gasket replacement while you're in there. 80-120 hours labor depending on additional damage discovered. Many owners opt for factory remanufactured long blocks at $35k-45k plus installation.

Estimated cost: $25,000-55,000

Typical onset: 70,000-110,000 mi

Symptoms: Transmission fluid in coolant or coolant in transmission (strawberry milkshake fluid), Harsh shifting or slipping, Overheating transmission temp warnings, Loss of coolant with no external leaks

Fix: The internal transmission oil cooler fails, allowing cross-contamination between cooling system and transmission. Requires new cooler, complete transmission fluid flush (multiple cycles), often transmission rebuild if contamination went undetected, plus cooling system flush. If caught early, cooler replacement and fluid service is 8-12 hours. If transmission damage occurred, add 25-35 hours for rebuild.

Estimated cost: $3,500-18,000

Typical onset: 50,000-90,000 mi

Symptoms: Harsh clunking during shifts, especially reverse to drive, Excessive driveline vibration at idle, Delayed or erratic shifts, Transmission fault codes for solenoids

Fix: The hydraulic transmission mounts fail frequently due to the W12's weight and torque. Solenoids fail from heat and contaminated fluid. Mount replacement is 4-6 hours. Solenoid replacement requires valve body removal and typically all solenoids are replaced as a set (7 total), 10-14 hours labor. Often done together since transmission must be partially dropped for mount access anyway.

Estimated cost: $2,800-6,500

Typical onset: 40,000-80,000 mi

Symptoms: Hard starting or extended cranking, Fuel smell in cabin or garage, Fuel leak visible under rear seat area, Limp mode or reduced power warnings

Fix: The in-tank fuel filter housing cracks and leaks, and high-pressure fuel pumps wear prematurely if filters aren't changed religiously. Filter/housing replacement requires fuel tank drop, 6-8 hours. High-pressure pump failures add another $1,800-2,500 in parts. These cars have two fuel filters—one in tank, one inline—both critical and both expensive.

Estimated cost: $1,800-4,200

Typical onset: 80,000-130,000 mi

Symptoms: Knocking noise from lower engine, worse when cold, Metal particles in oil or filter, Oil pressure fluctuations or low pressure warning, Sudden catastrophic failure if ignored

Fix: The W12's narrow bank angles and complex oiling system can lead to bearing starvation, especially with extended oil change intervals or low oil levels. Requires engine removal, full teardown, crankshaft inspection/machining, all bearings replaced. 90-120 hours labor. If crankshaft is damaged beyond machining limits, add $8k-12k for new/reman crank.

Estimated cost: $18,000-35,000

Typical onset: 60,000-100,000 mi

Symptoms: Vehicle sits low, especially after sitting overnight, Suspension warning lights, Compressor runs constantly or makes loud noise, Uneven ride height side-to-side

Fix: The air suspension struts develop leaks and the compressor works overtime until it burns out. Single strut replacement is 3-4 hours, compressor is 4-6 hours. Smart owners replace all four struts preventively when doing compressor since you're already paying diagnosis time and the others are likely close behind. OE parts only—aftermarket won't last.

Estimated cost: $3,200-8,500