Transmission Shudder / Hesitation
medium- Typically appears
- 30–60k mi
- Estimated repair
- $1,500 – $3,000
2012 Aston
Martin DB9
5.9L V12
The 2012 Aston Martin DB9 is a hand-built British grand tourer powered by a 5.9L naturally aspirated V12 producing 510 horsepower. It sits at the core of Aston Martin's lineup — elegant enough for a long motorway cruise, raw enough to feel genuinely sporting. The aluminum-intensive VH platform gives it a relatively light structure for its class, and the rear-mounted transaxle provides near-perfect weight distribution. By 2012, the DB9 was a mature, well-sorted design that had been refined since its 2004 debut. The Touchtronic 2 six-speed automatic is smooth in normal driving but can exhibit shudder under hard acceleration — a known characteristic owners should understand before buying. Interior quality improved significantly in this generation, though electronics remain a weak point. This is not a high-mileage daily driver — it's a low-volume exotic with maintenance costs to match. Owning one in the upper Midwest requires serious winter storage planning. A well-maintained example with documented service history is worth a significant premium over one without.
Reliability
3/5
Engine
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Drivetrain
RWD
Fuel
Gasoline
MPG
12 city / 19 hwy / 15 combined
Seats
4
Doors
2
Body
Coupe
MSRP
$182,500
Overview
AI-curatedThe 2012 Aston Martin DB9 is a hand-built British grand tourer powered by a 5.9L naturally aspirated V12 producing 510 horsepower. It sits at the core of Aston Martin's lineup — elegant enough for a long motorway cruise, raw enough to feel genuinely sporting. The aluminum-intensive VH platform gives it a relatively light structure for its class, and the rear-mounted transaxle provides near-perfect weight distribution. By 2012, the DB9 was a mature, well-sorted design that had been refined since its 2004 debut. The Touchtronic 2 six-speed automatic is smooth in normal driving but can exhibit shudder under hard acceleration — a known characteristic owners should understand before buying. Interior quality improved significantly in this generation, though electronics remain a weak point. This is not a high-mileage daily driver — it's a low-volume exotic with maintenance costs to match. Owning one in the upper Midwest requires serious winter storage planning. A well-maintained example with documented service history is worth a significant premium over one without.
Known for
- Hand-built 5.9L V12 with exceptional throttle response
- Striking aluminum body with timeless proportions
- Near 50/50 weight distribution via rear transaxle
- Genuinely usable 2+2 grand touring cabin
- One of the best exhaust notes in the industry
Best for
- Weekend and summer grand touring
- Enthusiasts who want an exotic with daily-driving manners
- Collectors looking for a modern classic at a relative value
- Drivers who prioritize character and sound over outright lap times
Watch for
- High dealer and specialist labor rates — budget accordingly
- Electronics and infotainment system are dated and failure-prone
- Fuel economy is poor; premium fuel required at all times
- Should be stored off-road salted roads — not a Wisconsin winter daily driver
- Open recall on fuel system (NHTSA 12V544000) — verify it has been addressed before purchase
Common issues by mileage
6 knownCarbon Buildup on Intake Valves
medium- Typically appears
- 40–80k mi
- Estimated repair
- $800 – $1,500
System Too Lean – Bank 1 (P0171)
medium- Typically appears
- 40–70k mi
- Estimated repair
- $200 – $500
Random / Multiple Cylinder Misfire (P0300)
low- Typically appears
- 60–90k mi
- Estimated repair
- $300 – $800
Camshaft Position / VVT Solenoid Faults
medium- Typically appears
- 50–90k mi
- Estimated repair
- $400 – $1,200
Fuel System Leak – Open Recall (NHTSA 12V544000)
high- Typically appears
- Any mileage
- Estimated repair
- $0
Maintenance schedule
- 1 Every 10,000 miles or 12 months, whichever comes first Engine Oil Change (5W-30 full synthetic, 8 qt capacity)
The V12 runs tight tolerances and hot. Fresh full-synthetic oil is non-negotiable. Use a quality oil meeting the required spec — the supplied data lists Mobil 1 and Castrol as approved options.
- 2 Every 40,000–50,000 miles or at first sign of shudder Transmission Fluid Service (Dexron VI, 9 qt)
The Touchtronic 2 gearbox is sensitive to fluid condition. Fresh fluid can delay or resolve shudder complaints that would otherwise require a costly valve body or converter service.
- 3 Every 2 years regardless of mileage Brake Fluid Flush (DOT 4)
DOT 4 is hygroscopic — it absorbs moisture over time. In a performance car with large brakes that see occasional hard use, degraded fluid raises the risk of fade and caliper corrosion.
- 4 Every 5 years or per Aston Martin spec Coolant System Service (OAT coolant, 11 qt)
OAT coolant protects the aluminum-intensive engine and cooling system from corrosion. Never mix with conventional green coolant.
- 5 Every 30,000 miles Spark Plug Replacement (24 plugs total)
The V12 uses 24 spark plugs. Labor alone is significant due to access — combining this with other major services saves considerable cost. Worn plugs accelerate misfire and carbon buildup issues.
- 6 Every 10,000 miles Fuel System Cleaner Treatment
Helps slow carbon buildup on intake valves — a documented issue on this engine. Not a substitute for walnut blasting when buildup is already established, but a useful preventive measure.
- 7 Every 7,500 miles or 6 months Tire Rotation and Pressure Check
Performance tires on a 510 hp RWD car wear unevenly without regular rotation. Correct pressures also protect the low-profile rubber from pothole and curb damage.
- 8 Every fall before winter storage Pre-Storage Inspection and Battery Tender Setup
The DB9 is not a Wisconsin winter vehicle. Before storing, change the oil, check brake fluid, inflate tires to storage pressure, and connect a quality battery maintainer. This single step prevents most of the issues seen on returning spring cars.
Always defer to the manufacturer's service manual for warranty-mandated intervals.
Cost of ownership
Annual maintenance
$2,500 – $6,000
Fuel
Premium (91+ octane) required. At 15 MPG combined and ~12,000 miles/year, expect $2,400–$3,200/year in fuel alone at current upper Midwest prices.
Insurance
Expect $2,000–$4,500/year for agreed-value collector or high-value exotic coverage. Standard auto policies often undervalue these cars — use a specialist insurer.
The DB9 is inexpensive to buy used compared to its original MSRP, but ownership costs remain exotic-tier. Routine maintenance at an independent Aston specialist runs $2,500–$6,000/year. Any unplanned repair — transmission, VVT system, body electronics — can easily add $2,000–$8,000 in a single visit. Budget a separate maintenance reserve, not just your annual service estimate.
Seasonal care
Lake Geneva, WI Winter
- Store the car — road salt will attack the aluminum body, subframe, and brake components. This is not hyperbole; a single Wisconsin winter of regular driving can cause thousands in corrosion damage.
- Before storage, perform an oil change so acids from combustion byproducts don't sit in the engine all winter.
- Connect a quality battery maintainer (tender). The DB9's electronics draw parasitic current and the battery will discharge and sulfate over a long storage period.
- Set tire pressure slightly above normal before storage to prevent flat-spotting on cold garage floors.
- If the car must be driven in winter, avoid all salted roads and wash the undercarriage immediately after any exposure.
- Check that the fuel recall (NHTSA 12V544000) has been performed — a fuel leak near a hot exhaust in winter is a serious fire risk.
Summer
- Check tire pressure before every long run — low-profile performance tires lose pressure with temperature swings and are expensive to damage.
- Inspect the cooling system before summer driving season. Verify OAT coolant is fresh and the system holds pressure — the V12 generates substantial heat.
- The A/C system uses R-134a; if output is weak after storage, have the system inspected and recharged rather than driving through a Wisconsin summer with a compromised system.
- After the car comes out of storage, verify brake pad thickness and pedal feel before any spirited driving — pads can develop surface rust over winter that affects initial bite.
- Check all fluids — brake, coolant, oil — after the first 500 miles back in service following winter storage.
Comparable vehicles
2012 Ferrari
California
Similar price band, V8 grand tourer mission, Italian exotic with comparable maintenance intensity. More modern electronics but equally demanding ownership.
2012 Bentley
Continental GT
V12-powered grand tourer, similar 2+2 layout and MSRP range. More opulent interior and AWD, but heavier and even more expensive to maintain.
2012 Maserati
GranTurismo
Italian 2+2 grand tourer with a Ferrari-sourced V8, comparable used pricing, and a similar blend of daily usability and weekend character.
2012 Porsche
911 Carrera S
Lower entry cost used, superior reliability and dealer/independent shop support, and genuinely comparable performance. If practicality and ease of ownership matter alongside driving engagement, the 911 wins on every objective metric.
If you're shopping for one
Red flags
- No service records or gaps longer than 15,000 miles — walk away.
- Open fuel recall (12V544000) not performed — a fire risk and a negotiating point at minimum.
- Any evidence of prior flood damage — the low roofline and electronics-dense cabin make these very difficult to properly remediate.
- Transmission shudder that the seller dismisses as 'normal' — it signals deferred service and possible internal damage.
- Signs of winter daily driving (heavy undercarriage salt residue, corroded wheel hardware, pitted rotors) — indicates a car likely used hard in conditions it was never meant for.
- Non-specialist repairs or aftermarket tune — these can void remaining warranty coverage and cause cascading electronic issues.
What to inspect
- Verify NHTSA recall 12V544000 (fuel hose) has been completed — check the VIN against NHTSA's recall database and ask for paperwork.
- Pull the full service history. A DB9 without documented oil changes and transmission services is a financial liability regardless of asking price.
- Have a pre-purchase inspection done by an Aston Martin-trained independent specialist, not a general shop. Scan all modules for stored codes.
- Check for transmission shudder during a test drive — light acceleration from a stop through second gear is where it shows up.
- Inspect the aluminum body panels closely for corrosion at door sills, wheel arches, and the undercarriage. Even minor salt exposure can start hidden corrosion.
- Test every electronic function: windows, HVAC, nav, parking sensors, fold mirrors. Electrical repairs are labor-intensive on this car.
- Inspect brake rotors and pads — large rotors are expensive, and a car that sat unused may have deeply grooved rotors from surface rust.