INFINITI M (2011)
Running costs, common problems, and reliability data based on 76 real MOT tests in 2024.
MOT Pass Rate
89%
Total Tests (2024)
76
Avg Mileage
94,553 mi
Est. Annual Cost
£1,900
Is the 2011 INFINITI M reliable?
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.
At 13 years old, 89% of INFINITI Ms from 2011 passed their MOT first time in 2024. That's based on 76 tests across the UK. The average mileage at this age is 94,553 miles.
How does the 2011 INFINITI M compare?
Mileage Analysis
The average 2011 INFINITI M has 94,553 miles on the clock, which is in line with the expected 96,200 miles for a 13-year-old car, suggesting normal everyday use.
Best year to buy a INFINITI M?
The most reliable year is the 2014 model with a 92% MOT pass rate, while the 2012 model has the lowest at 78%. The 2011 sits between the two at 89%.
How much does a 2011 INFINITI M cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
INFINITI M by Year
Checking a specific INFINITI M?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2011 INFINITI M
The 2011 INFINITI M is a premium performance with a 2993cc diesel engine. 76 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 21% of all 2011 cars for reliability.
With an average of 94,553 miles at 13 years old, INFINITI M owners drive about as much as the UK average.
2011 INFINITI M Fuel Costs
The 2993cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.
What does it cost to own a 2011 INFINITI M?
Total estimated annual running cost is £1,900 (£158/month), broken down as £1245 fuel, £250 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.
INFINITI M Reliability Trend
Newer INFINITI Ms show better MOT pass rates than older ones, with an average improvement of 6 percentage points.
Buying a Used 2011 INFINITI M
At 13 years old, the INFINITI M is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2014 model has the highest pass rate at 92%. Note: with only 76 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2011 INFINITI M
The INFINITI M is actually the most reliable option among similar diesel premium performances from this era. Here are comparable diesel cars with similar engines:
- LAND ROVER RANGE ROVER (2013) 88% pass rate (-1%) from 27,426 tests
- AUDI A4 (2011) 82% pass rate (-7%) from 26,901 tests
- JAGUAR XF (2013) 82% pass rate (-7%) from 24,451 tests
- AUDI A5 (2013) 85% pass rate (-4%) from 23,409 tests