Jaguar XK reliability, MPG and running costs
Figures updated
The Jaguar XK is a car. In 2024 MOT tests it scored 160 for reliability (100 is average), ranking 45 of 442, and 20.8% failed first time against a UK average of 28.5%. Its most common MOT failure is ball joint dust cover (4.7% of tests).
Ranked 45 of 442 cars in the 2024 MOT Reliability League
In 2024, 7,997 Jaguar XKs aged 3 to 20 had an MOT and 20.8% failed first time (UK average 28.5%). Taking age and mileage into account, the Jaguar XK is 38% less likely to fail than the average car of the same age and mileage.
First-time fail rate
20.8%
UK 28.5%
Fail rate at 3 years
–
UK 12.7%
Average miles a year
4,600
Typical age at test: 14 years
Jaguar XK MOT failure rate by age
Most common Jaguar XK MOT faults
- Ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt4.7% of tests
- Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt2.1% of tests
- Track rod end: ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt1.8% of tests
- Wipers: does not clear the windscreen effectively1.7% of tests
- Washers: provides insufficient washer liquid1.3% of tests
- Condition: has ply or cords exposed1.2% of tests
What the Jaguar XK fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Suspension | 7.4% | ▼ 36% less often |
| Lights and electrics | 5.3% | ▼ 63% less often |
| Tyres | 4.9% | ▼ 17% less often |
| Brakes | 4.1% | ▼ 50% less often |
| Visibility | 4.1% | ▼ 26% less often |
| Steering | 2.4% | About average |
| Exhaust and emissions | 1.7% | ▼ 56% less often |
| Seat belts and airbags | 0.8% | ▼ 32% less often |
| Body and structure | 0.4% | ▼ 91% less often |
| Wheels | 0.3% | ▼ 23% less often |
What MPG does the Jaguar XK do?
Official economy for the Jaguar XK ranges from 22.9 to 25.2mpg across the 11 versions listed by the Vehicle Certification Agency (2006–2014). A typical petrol version manages 25mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a Jaguar XK?
Any Jaguar XK first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Jaguar XK registered between March 2001 and March 2017 is taxed on its CO2: £790 a year.
Work out tax for a specific carJaguar XK specs and running costs
Official figures for 11 versions sold in the UK between 2006 and 2014.
Fuel types
Petrol
Official economy
22.9–25.2 mpg
CO2
264–294 g/km
| Version | Fuel | Economy | CO2 | Car tax |
|---|---|---|---|---|
| XK 5.0L V8 Coupé & ConvertibleAutomatic · listed 2014 | Petrol | 25.2 mpg | 264g | £790 |
| XK 5.0L ConvertibleA6 · listed 2012 | Petrol | 25.2 mpg | 264g | £790 |
| XK 5.0L CoupéA6 · listed 2012 | Petrol | 25.2 mpg | 264g | £790 |
| XK 3.5L ConvertibleA6 · listed 2010 | Petrol | 25 mpg | 269g | £790 |
| XK 3.5L CoupéA6 · listed 2010 | Petrol | 25 mpg | 269g | £790 |
| XK 4.2L ConvertibleA6 · listed 2010 | Petrol | 25 mpg | 269g | £790 |
| XK 4.2L CoupéA6 · listed 2010 | Petrol | 25 mpg | 269g | £790 |
| XK 4.2L Supercharged ConvertibleA6 · listed 2010 | Petrol | 22.9 mpg | 294g | £790 |
| XK 4.2L Supercharged CoupéA6 · listed 2010 | Petrol | 22.9 mpg | 294g | £790 |
| XK 4.2 CoupèA6 · listed 2006 | Petrol | 25 mpg | 269g | £790 |
| XK 4.2 ConvertibleA6 · listed 2006 | Petrol | 25 mpg | 269g | £790 |
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 Jaguar XK costs to fuel
- petrol, typical official 25mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a Jaguar XKBuying a used Jaguar XK?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Other Jaguar models
Frequently asked questions
›Is the Jaguar XK reliable?
Its MOT record is better than average: the Jaguar XK is 38% less likely to fail than the average car of the same age and mileage, with a reliability score of 160 in our 2024 league (100 is average).
›What are common problems with the Jaguar XK?
The most common MOT fault is “Ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt”, found in 4.7% of tests.
›What MPG does the Jaguar XK do?
Official economy for the Jaguar XK ranges from 22.9 to 25.2mpg across the 11 versions listed by the Vehicle Certification Agency (2006–2014). A typical petrol version manages 25mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a Jaguar XK?
Any Jaguar XK first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A Jaguar XK registered between March 2001 and March 2017 is taxed on its CO2: £790 a year.
›How many Jaguar XKs fail their MOT?
20.8% of Jaguar XKs aged 3 to 20 failed their MOT first time in 2024.
Sources: DVSA anonymised MOT tests 2024, all versions of the Jaguar XK 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.