Timing chain tensioners and guides (5.0 V8, to 2012)
usually 80,000–160,000 km · High risk
model years 2009–2012 only
Signs: Rattle on a cold start, timing fault codes
Fix: Replace the chains, guides and updated tensioners
€2,500–4,500
Common faults, service intervals and costs
Jaguar XK (X150)
2006–2014
1
engines covered
4
known faults
7,783
roadworthiness tests in the statistics
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
The Jaguar XK (X150) was built from 2006 to 2014.
For this generation we cover 1 engines and 4 known faults, each with the mileage range where it usually appears.
The most expensive known risk is Timing chain tensioners and guides (5.0 V8, to 2012): it usually appears at 80,000–160,000 km and costs €2,500–4,500 to fix.
In UK roadworthiness tests in 2024, at 50–100 thousand km this model most often failed on: lights, wipers and visibility (7.3 %), suspension (6.7 %), tyres and wheels (4.3 %). It fails more often than an average car of the same age and mileage on: steering. It fails less often than average on: brakes, suspension, tyres and wheels, lights, wipers and visibility, exhaust, emissions and leaks.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 3.0 V6 / 5.0 V8 supercharged (Jaguar Land Rover AJ126 / AJ133) | Petrol | Chain | 5W-20 / 0W-20 · JLR STJLR.51.5122 · ~7.25–8.0 L · every 15,000 km |
Faults by engine
3.0 V6 / 5.0 V8 supercharged (Jaguar Land Rover AJ126 / AJ133)
Water pump and plastic coolant pipes (supercharged V6 / V8)
usually 60,000–140,000 km · Medium risk
Signs: Coolant loss, low coolant warning, smell of coolant
Fix: Replace the water pump and the coolant pipes under the supercharger
€500–1,500
Supercharger coupling (isolator) rattle
usually 80,000–160,000 km · Wear part
Signs: Rattle at idle that stops when the engine is revved
Fix: Replace the supercharger isolator
€400–1,000
Gearboxes
Automatic (ZF 6HP / 9HP)
ZF 9HP rough shifts / software
usually 20,000–120,000 km · Wear part
model years 2014–2027 only
Signs: Harsh or delayed shifts
Fix: Software update; fluid service
€0–400
Scheduled service
Intervals and typical prices for the 3.0 V6 / 5.0 V8 supercharged (Jaguar Land Rover AJ126 / AJ133) engine. Other engines differ in oil, timing drive and some filters; the app gives the exact plan.
| Item | Interval | Typical price |
|---|---|---|
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Automatic transmission fluidTransmission | every 90,000 km | €200–450 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
| Front brake padsBrakes | usually at 30,000–60,000 km | €60–150 |
| Front brake discs + padsBrakes | usually at 60,000–120,000 km | €150–320 |
| Rear brake padsBrakes | usually at 50,000–90,000 km | €50–130 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
Roadworthiness tests by mileage
Share of tests in the United Kingdom (DVSA MOT, 2024) that this model failed because of each system. Bold red means more often and green less often than an average car of the same age and mileage. Sample: 7,783 tests.
| thousand km | 0–50 | 50–100 | 100–150 | 150–200 |
|---|---|---|---|---|
| Brakes | 1.6 % | 3.1 % | 4.9 % | 6.0 % |
| Suspension | 3.5 % | 6.7 % | 8.6 % | 10.3 % |
| Steering | 0.8 % | 2.2 % | 3.2 % | 3.3 % |
| Tyres and wheels | 2.9 % | 4.3 % | 7.4 % | 4.8 % |
| Lights, wipers and visibility | 3.8 % | 7.3 % | 9.5 % | 13.8 % |
| Body and corrosion | 0.2 % | 0.3 % | 0.5 % | 0.8 % |
| Exhaust, emissions and leaks | 0.7 % | 1.2 % | 2.2 % | 2.9 % |
Most common engine versions in the EU
New cars of this generation registered in the EU, Iceland and Norway 2010–2025: 2,611, of which 0 in Croatia. The share shows how common each version is.
| Version | Share | Years | CO₂ | Fuel use |
|---|---|---|---|---|
| 3.0 V6 / 5.0 V8 supercharged (Jaguar Land Rover AJ126 / AJ133)5.0 (5,000 cm³) · Petrol | 73.0 % | 2010–2014 | — | — |
| 3.0 V6 / 5.0 V8 supercharged (Jaguar Land Rover AJ126 / AJ133)5.0 (5,000 cm³) · 283 kW (385 hp) · Petrol | 24.4 % | 2011–2014 | — | — |
| 3.6 Petrol3.6 (3,555 cm³) · Petrol | 1.0 % | 2010–2010 | — | — |
Source: European Environment Agency (EEA), monitoring of CO₂ emissions from new passenger cars, CC BY 4.0. CO₂ and fuel use are official type-approval values (WLTP from 2021), not real-world consumption.
Common questions
Does the Jaguar XK (X150) have a timing chain or a timing belt?
3.0 V6 / 5.0 V8 supercharged (Jaguar Land Rover AJ126 / AJ133): chain.
What are the known problems with the Jaguar XK (X150)?
The faults with the highest risk: timing chain tensioners and guides (5.0 V8, to 2012) (80,000–160,000 km, €2,500–4,500); water pump and plastic coolant pipes (supercharged V6 / V8) (60,000–140,000 km, €500–1,500). The full list by engine is on this page.
What does the Jaguar XK (X150) most often fail its roadworthiness test on?
In UK roadworthiness tests in 2024, at 50–100 thousand km this model most often failed on: lights, wipers and visibility (7.3 %), suspension (6.7 %), tyres and wheels (4.3 %). It fails more often than an average car of the same age and mileage on: steering. It fails less often than average on: brakes, suspension, tyres and wheels, lights, wipers and visibility, exhaust, emissions and leaks.
What should you check when buying a used Jaguar XK (X150)?
Before you buy, ask an authorised dealer to check by VIN whether the car has any open recalls. On the test drive, watch for these signs: rattle on a cold start, timing fault codes; coolant loss, low coolant warning, smell of coolant. The full checklist is in the guide to buying a used car.
Models with the same engines
These models share engines with this car, so they share some of its faults too.
Jaguar XF (X250) 2007–2015Land Rover Range Rover Sport (L494) 2013–2022Land Rover Range Rover (L405) 2012–2021Land Rover Range Rover Sport (L320) 2005–2013Land Rover Range Rover (L322) 2002–2012Jaguar F-Type 2013–2024Jaguar XJ (X351) 2010–2019
Other Jaguar models
Jaguar XJ (X350) 2003–2009Jaguar X-Type 2001–2009Jaguar S-Type 1999–2007
Sources and notes
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles.
Updated 08/10/2026