ASTON MARTIN DB11 (2018)
Running costs, reliability data, and common problems from 2,048 real MOT tests.
Annual Cost
£2,042
£170/month
MOT Pass Rate
97%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 35-50
5200cc Petrol
Great Choice
97% pass rate, £2042/year to run. 15 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 15 points above the national average of 82%.
At 8 years old, 97% of ASTON MARTIN DB11s from 2018 passed their MOT first time in 2026. That's based on 2,048 tests across the UK. The average mileage at this age is 19,308 miles.
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How Does It Compare?
Mileage Analysis
19,308
Average miles
59,200
Expected for age
The average 2018 ASTON MARTIN DB11 has 19,308 miles on the clock, which is significantly below the expected 59,200 miles for a 8-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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Best Year to Buy?
The most reliable year is the 2021 model with a 99% MOT pass rate, while the 2017 model has the lowest at 96%. The 2018 sits between the two at 97%.
ASTON MARTIN DB11 by Year
Similar Cars to Consider
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About the 2018 ASTON MARTIN DB11
The 2018 ASTON MARTIN DB11 is a luxury with a 5200cc petrol engine. 2,048 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. It ranks in the top 8% of all 2018 cars for reliability.
With an average of 19,308 miles at 8 years old, ASTON MARTIN DB11 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.
2018 ASTON MARTIN DB11 Fuel Costs
The 5200cc 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 2018 ASTON MARTIN DB11?
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 97% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
ASTON MARTIN DB11 Reliability Trend
The ASTON MARTIN DB11 has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2018 ASTON MARTIN DB11
At 8 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. If you're flexible on year, the 2021 model has the highest pass rate at 99%.
Common Issues to Watch For
Based on the 2018 ASTON MARTIN DB11's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 8 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 2018 ASTON MARTIN DB11 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| ASTON MARTIN DB11(2018) | 97% | £1592 | £195 | Grp 35-50 | £2042 |
| LAND ROVER RANGE ROVER(2017) | 91% | £1592 | £190 | Grp 35-50 | £2037-£5 |
| MERCEDES S-CLASS(2017) | 93% | £1592 | £190 | Grp 35-50 | £2037-£5 |
| JAGUAR F-TYPE(2017) | 94% | £1592 | £190 | Grp 35-50 | £2037-£5 |
| MERCEDES SLK(2016) | 89% | £1592 | £250 | Grp 35-50 | £2247+£205 |
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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