MG TF reliability, MPG and running costs
Figures updated
The MG TF is a car. In 2024 MOT tests it scored 114 for reliability (100 is average), ranking 179 of 442, and 30.4% failed first time against a UK average of 28.5%. Its most common MOT failure is rbt (sp) (4.1% of tests).
Ranked 179 of 442 cars in the 2024 MOT Reliability League
In 2024, 6,133 MG TFs aged 3 to 20 had an MOT and 30.4% failed first time (UK average 28.5%). Taking age and mileage into account, the MG TF is 12% less likely to fail than the average car of the same age and mileage.
First-time fail rate
30.4%
UK 28.5%
Fail rate at 3 years
–
UK 12.7%
Average miles a year
3,000
Typical age at test: 19 years
MG TF MOT failure rate by age
Most common MG TF MOT faults
- Rbt (sp): efficiency below requirements4.1% of tests
- Track rod end: ball joint has excessive play2.8% of tests
- Malfunction indicator lamp: inoperative or indicates a malfunction2.5% of tests
- Wipers: does not clear the windscreen effectively2.5% of tests
- Suspension arm: corroded and seriously weakened2.4% of tests
- Horn: not working2.2% of tests
What the MG TF fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Brakes | 10.0% | About average |
| Suspension | 9.8% | ▼ 14% less often |
| Lights and electrics | 9.4% | ▼ 39% less often |
| Exhaust and emissions | 7.7% | ▲ 1.6× as often |
| Visibility | 6.2% | About average |
| Body and structure | 3.5% | ▼ 41% less often |
| Steering | 3.4% | ▲ 1.4× as often |
| Tyres | 3.3% | ▼ 35% less often |
| Seat belts and airbags | 2.0% | ▲ 1.1× as often |
| Wheels | 0.1% | ▼ 45% less often |
What MPG does the MG TF do?
Official economy for the MG TF ranges from 35.8 to 35.8mpg across the 1 versions listed by the Vehicle Certification Agency (2010–2010). A typical petrol version manages 35.8mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a MG TF?
Any MG TF first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A MG TF registered between March 2001 and March 2017 is taxed on its CO2: £360 a year.
Work out tax for a specific carMG TF specs and running costs
Official figures for 1 versions sold in the UK between 2010 and 2010.
Fuel types
Petrol
Official economy
35.8 mpg
CO2
185 g/km
| Version | Fuel | Economy | CO2 | Car tax |
|---|---|---|---|---|
| TF 1355MT · listed 2010 | Petrol | 35.8 mpg | 185g | £360 |
Economy and CO2 are official NEDC (before 2018) or WLTP figures. Car tax is the yearly rate at current rates for a car first registered in the year listed, before any expensive car supplement.
What a MG TF costs to fuel
- petrol, typical official 35.8mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a MG TFBuying a used MG TF?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Other MG models
Frequently asked questions
›Is the MG TF reliable?
Its MOT record is better than average: the MG TF is 12% less likely to fail than the average car of the same age and mileage, with a reliability score of 114 in our 2024 league (100 is average).
›What are common problems with the MG TF?
The most common MOT fault is “Rbt (sp): efficiency below requirements”, found in 4.1% of tests. It fails on exhaust and emissions and steering more often than similar cars.
›What MPG does the MG TF do?
Official economy for the MG TF ranges from 35.8 to 35.8mpg across the 1 versions listed by the Vehicle Certification Agency (2010–2010). A typical petrol version manages 35.8mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a MG TF?
Any MG TF first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A MG TF registered between March 2001 and March 2017 is taxed on its CO2: £360 a year.
›How many MG TFs fail their MOT?
30.4% of MG TFs aged 3 to 20 failed their MOT first time in 2024.
Sources: DVSA anonymised MOT tests 2024, all versions of the MG TF combined (Open Government Licence v3.0); official economy and CO2 from Vehicle Certification Agency data, © Crown copyright. VCA cannot accept liability for its accuracy. How we calculate the league.