The 2017 DB11 launched Aston's new bonded-aluminum architecture and marked the end of the naturally-aspirated era. Early V12 cars suffer catastrophic engine failures from connecting rod bearing issues, while V8s (AMG-sourced) are generally robust but share transmission cooling and mount concerns across both powertrains.
V12 Connecting Rod Bearing Failure (Catastrophic)
Occasional · high severityTypical onset: 15,000-40,000 mi
Symptoms: Metallic knocking from lower engine, especially cold start or under load, Oil pressure warning light or erratic oil pressure readings, Metal shavings visible in oil during changes, Sudden loss of power followed by engine seizure in severe cases
Fix: Complete engine-out teardown required. Connecting rod bearings fail prematurely due to inadequate oil clearances in early production runs. Fix involves full crankshaft inspection, bearing replacement, often requires crankshaft machining or replacement. 60-80 hours labor for engine removal, rebuild, and reinstallation. Many owners opt for Aston factory short block replacement under goodwill or warranty.
Estimated cost: $35,000-65,000
Transmission Oil Cooler Leaks
Common · medium severityTypical onset: 30,000-60,000 mi
Symptoms: Transmission fluid puddles under vehicle, often passenger side, Burnt transmission fluid smell after spirited driving, Transmission overheating warnings on dash, Harsh or delayed shifts when fluid level drops
Fix: The ZF 8-speed's auxiliary cooler develops leaks at crimp joints and line connections. Requires cooler replacement and often associated lines. Front undertray removal, fluid flush. 4-6 hours labor. OEM cooler assembly is the only reliable fix—aftermarket units fail quickly.
Estimated cost: $1,800-2,800
Transmission Mount Failure
Common · low severityTypical onset: 25,000-50,000 mi
Symptoms: Clunking during acceleration or deceleration, especially in low gears, Excessive driveline vibration at idle in Drive, Visible movement of transmission tailhousing under throttle, Shifter vibration transmitted into cabin
Fix: Rear transmission mount uses a hydraulic design that collapses prematurely. The mount itself is a pain to access—requires partial exhaust removal and working around heatshielding. 3-4 hours labor. Aston revised the part in 2019; insist on updated part number.
Estimated cost: $900-1,400
Fuel Filter Clogging and Fuel System Issues
Occasional · medium severityTypical onset: 20,000-50,000 mi
Symptoms: Hesitation or stumbling during hard acceleration, Limp mode activation under full throttle, Rough idle or misfires after refueling, Fuel pump whining audible from rear seat area
Fix: In-tank fuel filter clogs prematurely, especially with ethanol fuel. Requires fuel tank drop, pump module removal. The V12 uses dual pumps which complicates diagnosis. 5-7 hours labor. Always replace both filter and pump strainer; contamination often damages pumps requiring full assembly replacement.
Estimated cost: $1,200-2,500
Head Gasket Seepage (V12)
Occasional · medium severityTypical onset: 40,000-70,000 mi
Symptoms: White residue or coolant weeping visible at head/block interface, Slight coolant smell from engine bay after heat cycling, Slow coolant loss requiring top-ups every 2,000-3,000 miles, No overheating or mixing of fluids in most cases
Fix: Early DB11 V12s experience external head gasket seepage due to insufficient clamping force. Not always catastrophic but progressive. If caught early, retorquing may buy time, but proper fix is gasket replacement. Engine-out job given tight packaging. 40-50 hours labor for both banks.
Estimated cost: $12,000-18,000
TPMS Sensor Failures and False Warnings
Common · low severitySymptoms: TPMS warning light illuminated despite correct pressures, Individual sensor reading drops to zero intermittently, Warning appears after car sits overnight in cold weather, Cannot clear warning even after manual pressure adjustment
Fix: OEM TPMS sensors have high failure rate, batteries die early or electronics corrode. Aftermarket sensors often incompatible with Aston's system. Must use OEM sensors and reprogram with factory tool. 1 hour labor per sensor including programming.
Estimated cost: $350-500 per sensor
The V8 is the safer used buy—avoid early V12s unless comprehensive engine inspection confirms bearing health or prior factory rebuild; otherwise budget for a grenade with a beautiful pin.
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.