What is the 2006 Jaguar XK Unintended Acceleration During Braking?

Multiple 2006 complaints describe the vehicle accelerating when the brake pedal was applied, including incidents while exiting highways, approaching red lights, and parking. Several reports resulted in crashes and injuries, and the pattern aligns with Jaguar's recall for incorrec… Severity: high.

What is the 2006 Jaguar XK Passenger Seat Airbag Occupancy Sensor Failure?

Airbag complaints on 2006 XK/XKR models include repeated airbag warning lamp illumination and a failed passenger-seat sensor that could prevent proper airbag deployment. One owner reported multiple unsuccessful repair attempts for recurring airbag light faults, suggesting an inte… Repairs typically run $250-$1,200. Severity: high.

What is the 2010-2015 Jaguar XK 5.0L AJ133 Water Pump Bearing and Seal Failure?

The mechanical water pump on the 5.0L AJ133 V8 is a recognized weak point. Coolant migrates past the shaft seal into the bearing housing, corroding the bearing so the impeller shaft is no longer properly supported. This accelerates wear on the flat-face mechanical seal and lets c… Repairs typically run $550-$1,500. Severity: high.

What is the 2007-2009 Jaguar XK Rear Differential Bearing Whine (Visteon Unit)?

Early 2007-2009 XK/XKR cars use a Ford/Visteon rear differential prone to premature bearing failure, producing a rising-and-falling whine, howl or drone. It is loudest between roughly 45 and 70 mph and typically present under acceleration/on-throttle; a leaking near-side output o… Repairs typically run $1,500-$5,000. Severity: high.

What is the 2007-2015 Jaguar XK Plastic Crossover / Valley Coolant Pipe Splitting?

The AJ-V8 routes coolant through molded plastic pipes in the engine 'valley'/V (the crossover pipe that plugs into the block, and on 4.2/supercharged cars the valley pipes beneath the supercharger). With age the plastic embrittles and the molded seam splits, or the stubs shear at… Repairs typically run $400-$1,400. Severity: high.

What is the 2007-2015 Jaguar XK Convertible Roof Mechanism Failure?

The XK convertible fabric roof mechanism develops faults in the hydraulic actuators and limit switches. The complex folding mechanism jams mid-cycle, leaving the roof partially open. Microswitch failures send incorrect position signals to the roof control module. Repairs typically run $400-$2,500. Severity: medium.

What is the 2007-2015 Jaguar XK Throttle Body Position Sensor Failure?

The electronic throttle body on the XK develops position sensor failures causing erratic throttle response, limp mode, and check engine lights. The dual-track position sensor wears internally, sending conflicting signals to the engine management system. Repairs typically run $300-$800. Severity: medium.

What is the 2006 Jaguar XK Limp Mode and Sudden Loss of Power?

At least one complaint tied to the speed-control group describes the vehicle entering limp mode and slowing abruptly in traffic, creating a hazard with surrounding vehicles. While fewer reports are available than for unintended acceleration, the complaint indicates a real drivabi… Repairs typically run $150-$1,200. Severity: medium.

What is the 2007-2015 Jaguar XK Front Lower Control Arm Hydrobush Failure?

The X150 front lower control arms use fluid-filled 'hydrobushes' (notably the large banana/curved front lower arm) to control NVH. These bushes perish and rupture with age and mileage, often between 30,000 and 60,000 miles, producing a clunk or knock over bumps and vague steering… Repairs typically run $700-$2,200. Severity: medium.

What is the 2007-2015 Jaguar XK Supercharger Nose-Cone Coupler / Isolator Breakdown?

On supercharged XKR models the Eaton supercharger drive uses a plastic coupler/isolator in the nose cone that damps the input drive. The isolator spring breaks and the drive forks wear into the plastic coupling, producing a rattle that steadily worsens. Owners describe a 'bag of… Repairs typically run $500-$1,800. Severity: medium.

What is the 2006-2014 Jaguar XK Non-Serviceable Rear Propshaft Rubber (Jurid) Coupling Splitting?

The rear driveshaft (propshaft) on the X150 XK uses a bonded rubber flexible coupling — the 'rubber doughnut' or Jurid coupling — that perishes and splits with age and heat. Unlike earlier Jaguars where the coupling was a replaceable item, the X150 propshaft was progressively lig… Repairs typically run $300-$1,800. Severity: medium.

What is the 2007-2009 Jaguar XK Blocked HVAC Condensate 'Duckbill' Drain Flooding Passenger Footwell?

The A/C evaporator condensate drain on the early X150 uses a rubber 'duckbill' valve (intended to keep insects out) that dries out and sticks shut over time. With the drain blocked, condensation backs up inside the HVAC box and overflows out of the housing into the front passenge… Repairs typically run $50-$900. Severity: medium.

What is the 2007-2015 Jaguar XK Ignition Coil-on-Plug Misfire (Oil-Fouled Coils)?

The AJ-V8 uses individual coil-on-plug ignition coils that fail with age and heat, producing single- or multi-cylinder misfires and a check-engine light. A frequent contributor is oil pooling in the spark-plug wells from a leaking cam-cover gasket, which fouls the coil boots. Coi… Repairs typically run $300-$1,000. Severity: medium.

What is the 2007-2009 Jaguar XK Variable Valve Timing (VVT) Solenoid Cold-Start Rattle?

On the 4.2 AJ-V8, worn VVT solenoids and cam phasers are a leading cause of a brief rattle on cold start-up. The locking pin in the intake-cam actuator sticks or breaks, allowing excessive cam movement (roughly 20 degrees each way) until oil pressure builds. It grows more common… Repairs typically run $600-$2,500. Severity: medium.

What is the 2007-2015 Jaguar XK Electronic Parking Brake (EPB) Motor / Module Failure?

The X150 electronic parking brake is a frequent trouble spot. Small plastic serrated gears inside the EPB motor unit strip, the wiring harness between the parking brake module (PBM) and actuator chafes, and the module/switch can fault. Failures range from a 'Park Brake Fault' war… Repairs typically run $500-$1,300. Severity: medium.

What is the 2007-2015 Jaguar XK Parasitic Battery Drain (Module Not Sleeping / BCM Fault)?

XK owners frequently report flat batteries from parasitic draw when a control module fails to enter sleep mode. Normal quiescent draw should fall to roughly 30-50 mA within about three minutes of lock-up; faulty cars have been measured at 200-220 mA, enough to reach 50% state of… Repairs typically run $200-$1,200. Severity: medium.

What is the 2000 Jaguar XK Headlamp Adjustment Mechanism Compliance/Setup Issue?

Jaguar issued a recall for certain 2000 vehicles because the headlamp adjustment mechanism could be operated without suitable instructions on the mechanism or in the owner's manual. This is primarily a compliance and setup issue, but incorrect adjustment can still reduce nighttim… Severity: low.

What is the 2007-2009 Jaguar XK Cam (Valve) Cover Gasket Oil Leak on 4.2 AJ-V8?

The 4.2 AJ-V8 cam (valve) cover gaskets harden with heat and age and begin to weep oil, often onto the exhaust manifolds (producing a burning-oil smell) and down into the spark-plug wells, where pooled oil can foul coils and cause misfires. It is a well-documented, near-universal… Repairs typically run $400-$1,300. Severity: low.

Jaguar · Known Issues

2000-2015 Jaguar XK Problems: 22 Issues Every Owner Should Know

2000-2015 model years · 2,553+ owner reports · Updated July 2026

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According to Au7o's analysis of 2,553+ owner reports, the 2000-2015 Jaguar XK has 22 documented known issues, with 7 rated critical. The most serious are Timing Chain Tensioner Failure on AJ-V8 ($4,000-$8,500 repair), Unintended Acceleration During Braking, Passenger Seat Airbag Occupancy Sensor Failure ($250-$1,200 repair), 5.0L AJ133 Water Pump Bearing and Seal Failure ($550-$1,500 repair), ZF 6HP Automatic Transmission Mechatronic Bridge-Seal / Sealing-Sleeve Failure ($900-$3,000 repair), Rear Differential Bearing Whine (Visteon Unit) ($1,500-$5,000 repair) and Plastic Crossover / Valley Coolant Pipe Splitting ($400-$1,400 repair). The most commonly reported issue is Timing Chain Tensioner Failure on AJ-V8 with 1,600 owner reports. Across all issues with published estimates, repair costs range from $50 to $8,500. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Jaguar XK problems?

According to Au7o's analysis of 2,553+ owner reports, the 2000-2015 Jaguar XK has 22 documented issues. The most frequently reported are: Timing Chain Tensioner Failure on AJ-V8, Unintended Acceleration During Braking, Passenger Seat Airbag Occupancy Sensor Failure. Of these, 7 are rated critical and should be addressed promptly.

Is the Jaguar XK reliable?

The 2000-2015 Jaguar XK has 22 known issues documented across 2,553+ owner reports. 7 issues are rated critical: Timing Chain Tensioner Failure on AJ-V8 and Unintended Acceleration During Braking and Passenger Seat Airbag Occupancy Sensor Failure and 5.0L AJ133 Water Pump Bearing and Seal Failure and ZF 6HP Automatic Transmission Mechatronic Bridge-Seal / Sealing-Sleeve Failure and Rear Differential Bearing Whine (Visteon Unit) and Plastic Crossover / Valley Coolant Pipe Splitting. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Jaguar XK problems?

Repair costs for known Jaguar XK issues range from $50 to $8,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Timing Chain Tensioner Failure on AJ-V8, typically costs $4,000-$8,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year Jaguar XK is the most reliable?

Reliability varies across model years of the Jaguar XK. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2000-2015 Jaguar XK with 22 documented issues documented across 2,553+ owner reports.

What is the 2007-2015 Jaguar XK Timing Chain Tensioner Failure on AJ-V8?

The AJ-V8 engine in the XK shares the same timing chain tensioner weakness found across the Jaguar V8 range. The hydraulic tensioners bleed down when the engine is off, causing the timing chains to rattle on startup and progressively stretch until timing is compromised. Repairs typically run $4,000-$8,500. Severity: high.

All 22 Known Issues

Other Jaguar Models

Frequently Asked Questions

What are the most common Jaguar XK problems?

Is the Jaguar XK reliable?

How much does it cost to fix common Jaguar XK problems?

What year Jaguar XK is the most reliable?

What is the 2007-2015 Jaguar XK Timing Chain Tensioner Failure on AJ-V8?

2006 Jaguar XK: Unintended Acceleration During Braking#

2006 Jaguar XK: Passenger Seat Airbag Occupancy Sensor Failure#

2007-2015 Jaguar XK: TPMS Sensor and Under-Seat Module Failure#

2010-2015 Jaguar XK: 5.0L AJ133 Water Pump Bearing and Seal Failure#

2007-2015 Jaguar XK: Plastic Crossover / Valley Coolant Pipe Splitting#

2007-2015 Jaguar XK: Timing Chain Tensioner Failure on AJ-V8#

2007-2015 Jaguar XK: Throttle Body Position Sensor Failure#

2007-2015 Jaguar XK: Supercharger Nose-Cone Coupler / Isolator Breakdown#

2007-2015 Jaguar XK: Ignition Coil-on-Plug Misfire (Oil-Fouled Coils)#

2007-2009 Jaguar XK: Variable Valve Timing (VVT) Solenoid Cold-Start Rattle#

2007-2009 Jaguar XK: Cam (Valve) Cover Gasket Oil Leak on 4.2 AJ-V8#

2007-2009 Jaguar XK: Rear Differential Bearing Whine (Visteon Unit)#

2006-2014 Jaguar XK: Non-Serviceable Rear Propshaft Rubber (Jurid) Coupling Splitting#

2007-2014 Jaguar XK: ZF 6HP Automatic Transmission Mechatronic Bridge-Seal / Sealing-Sleeve Failure#

2006 Jaguar XK: Limp Mode and Sudden Loss of Power#

2007-2015 Jaguar XK: Parasitic Battery Drain (Module Not Sleeping / BCM Fault)#

2007-2015 Jaguar XK: Center Touchscreen Blank / Unresponsive (MOST-Ring Fault)#

2007-2015 Jaguar XK: Convertible Roof Mechanism Failure#

2007-2015 Jaguar XK: Front Lower Control Arm Hydrobush Failure#

2007-2009 Jaguar XK: Blocked HVAC Condensate 'Duckbill' Drain Flooding Passenger Footwell#

2007-2015 Jaguar XK: Electronic Parking Brake (EPB) Motor / Module Failure#

2000 Jaguar XK: Headlamp Adjustment Mechanism Compliance/Setup Issue#