ASTON MARTIN DB9 (2017)
Running costs, reliability data, and common problems from 97 real MOT tests.
Annual Cost
£2,042
£170/month
MOT Pass Rate
99%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 35-50
5935cc Petrol
Great Choice
99% pass rate, £2042/year to run. 17 points above average.
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Annual Running Costs
~30 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 17 points above the national average of 82%. It also outperforms the ASTON MARTIN brand average of 94%.
At 9 years old, 99% of ASTON MARTIN DB9s from 2017 passed their MOT first time in 2026. That's based on 97 tests across the UK. The average mileage at this age is 14,436 miles.
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How Does It Compare?
Mileage Analysis
14,436
Average miles
66,600
Expected for age
The average 2017 ASTON MARTIN DB9 has 14,436 miles on the clock, which is significantly below the expected 66,600 miles for a 9-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
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ASTON MARTIN DB9 by Year
| Year | Pass Rate | Tests | Avg Mileage | |
|---|---|---|---|---|
| 2017 | 99% | 97 | 14,436 mi | |
| 2016 | 97% | 363 | 21,029 mi | |
| 2015 | 97% | 424 | 22,406 mi | |
| 2014 | 97% | 386 | 27,379 mi | |
| 2013 | 94% | 463 | 32,444 mi | |
| 2012 | 94% | 187 | 38,809 mi | |
| 2011 | 93% | 221 | 35,071 mi | |
| 2010 | 92% | 438 | 40,263 mi | |
| 2009 | 95% | 494 | 36,995 mi | |
| 2008 | 92% | 1,100 | 43,233 mi | |
| 2007 | 94% | 1,286 | 43,791 mi | |
| 2006 | 93% | 1,167 | 41,311 mi | |
| 2005 | 93% | 2,229 | 47,412 mi | |
| 2004 | 91% | 541 | 50,936 mi |
Similar Cars to Consider
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About the 2017 ASTON MARTIN DB9
The 2017 ASTON MARTIN DB9 is a luxury with a 5935cc petrol engine. 97 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 5% of all 2017 cars for reliability.
With an average of 14,436 miles at 9 years old, ASTON MARTIN DB9 owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.
2017 ASTON MARTIN DB9 Fuel Costs
The 5935cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2017 ASTON MARTIN DB9?
Total estimated annual running cost is £2,042 (£170/month), broken down as £1592 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 99% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
ASTON MARTIN DB9 Reliability Trend
The ASTON MARTIN DB9 has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.
Buying a Used 2017 ASTON MARTIN DB9
At 9 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. Note: with only 97 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2017 ASTON MARTIN DB9's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 9 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.
Oil Consumption
Medium riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
Suspension Wear
Medium riskShock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2017 ASTON MARTIN DB9 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| ASTON MARTIN DB9(2017) | 99% | £1592 | £195 | Grp 35-50 | £2042 |
| MERCEDES SLK(2015) | 87% | £1592 | £250 | Grp 35-50 | £2247+£205 |
| MERCEDES S-CLASS(2017) | 93% | £1592 | £190 | Grp 35-50 | £2037-£5 |
| JEEP CHEROKEE(2016) | 86% | £1592 | £250 | Grp 35-50 | £2247+£205 |
| BENTLEY CONTINENTAL GT(2018) | 97% | £1592 | £190 | Grp 35-50 | £2037-£5 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
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