Aston Martin DB9 Common Problems & Reliability
The quintessential V12 GT. While the ZF automatic is reliable, the V12 engine and VH platform have specific, labor-intensive failure points.
Select a Model Year Period
Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Aston Martin DB9 Faults & Repair Costs
V12 Timing Cover Oil Leaks
Like the V8, the V12 is prone to weeping oil from the front cover. On the V12, this often requires the entire front end of the car to be dismantled.
Burning oil smell, Oil residue on the front subframe, Contaminated auxiliary belts
- Look for oil weeping behind the pulleys at the front of the engine.
V12 Coil Pack & Spark Plug Failure
Heat soak in the V12 "valley" kills coil packs. Replacement requires removing both intake manifolds, making it a very expensive labor-heavy job.
Rough idling, Misfire under load, Check Engine light (CEL)
- Check if all 12 coils and plugs were replaced recently.
- Listen for a smooth, even idle when fully warm.
Door Handle Pivot Pin Failure
The DB9 uses the same flush handles as the Vantage, subject to the same pivot pin wear and sagging.
Sagging handle, Handle doesn't sit flush, Loose feeling when pulled
- Wiggle the handle when closed; there should be no play.
Buying a used Aston Martin DB9? Always check for hidden finance and write-off history.
Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.