The 2022 Aventador's naturally-aspirated 6.5L V12 and ISR single-clutch automated manual transmission are mechanical marvels, but they demand fanatical maintenance and generate serious heat that stresses cooling systems, seals, and fluids. These aren't high-mileage vehicles—most issues surface from heat cycles, aggressive use, and sitting idle rather than odometer miles.
ISR Transmission Overheating & Oil Cooler Failure
Common · high severitySymptoms: Harsh shifts or delayed engagement after spirited driving or track use, Transmission warning light with overtemp codes, Burnt transmission fluid smell, Grinding or clunking during gear changes in auto mode
Fix: The ISR transmission generates massive heat under load; oil cooler lines crack or coolers get clogged with debris. Replacement requires removing undertray panels and partial suspension drop. 8-12 hours labor plus flushing entire system with OE fluid. Track-driven cars see this by 10,000-15,000 miles; street cars by 20,000-30,000.
Estimated cost: $4,500-7,500
Transmission Mount Deterioration
Common · medium severityTypical onset: 15,000-30,000 mi
Symptoms: Excessive clunking during aggressive shifts or launches, Vibration felt through chassis at idle in gear, Visible sagging or torn rubber on mounts during inspection
Fix: The ISR's violent shift action kills mounts faster than conventional automatics. Rear mount is worst. Requires lifting powertrain slightly to access. 6-8 hours labor. Aftermarket poly mounts available but transmit more NVH.
Estimated cost: $2,800-4,200
Fuel Filter Clogging & Fuel System Contamination
Occasional · medium severitySymptoms: Rough idle or misfires under wide-open throttle, Loss of top-end power above 6,000 RPM, Hard starting after sitting overnight, Check engine light with lean fuel trims
Fix: V12 is sensitive to fuel quality; ethanol blends and stale gas from sitting kill filters and gum up injectors. Filters are in-tank, requiring fuel tank drop. 10-14 hours labor including system purge and injector cleaning. Cars stored without stabilizer or driven infrequently are most vulnerable.
Estimated cost: $3,200-5,500
Piston Ring Failure & Cylinder Scoring
Rare · high severityTypical onset: 25,000-50,000 mi
Symptoms: Blue smoke on cold start or deceleration, Excessive oil consumption—more than 1 qt per 1,000 miles, Loss of compression in one or more cylinders, Metallic rattling from engine bay at idle
Fix: Early 2022 production had issues with piston ring sealing under extreme heat cycling—track use or repeated high-RPM pulls cause rings to flutter and score cylinder walls. Full engine-out rebuild: pistons, rings, honing, head gaskets, bearings. 80-120 hours labor. Some cases covered under extended warranty; out-of-pocket is catastrophic.
Estimated cost: $45,000-75,000
Shift Solenoid Failure in ISR Transmission
Occasional · medium severityTypical onset: 20,000-40,000 mi
Symptoms: Transmission stuck in one gear or limp mode, Delayed or missed shifts during acceleration, Harsh engagement into reverse, Fault codes for solenoid circuit malfunction
Fix: Heat and contaminated fluid kill solenoids in the ISR's electro-hydraulic control unit. Requires partial transmission disassembly. 12-16 hours labor including recalibration and clutch relearn. Replace all solenoids as a set to prevent repeat failures.
Estimated cost: $6,500-9,500
Head Gasket Seepage & Coolant Loss
Occasional · medium severityTypical onset: 30,000-60,000 mi
Symptoms: Slow coolant loss without visible external leaks, White residue around head mating surfaces, Overheating under sustained high load, Slight oil contamination in coolant reservoir
Fix: V12's extreme heat cycling stresses MLS head gaskets; seepage starts at rear cylinders. Engine-out service required for access. Both heads, gaskets, ARP studs, full cooling system flush. 60-80 hours labor. Not a full breach usually, but left unchecked leads to worse damage.
Estimated cost: $28,000-42,000
Buy only with comprehensive warranty or maintenance records proving religious fluid changes and no track abuse—repair costs are supercar-apocalyptic and these cars live on the edge thermally.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.