According to Au7o's analysis of 5,370+ owner reports, the 2007 Jaguar XJ has 4 documented known issues, with 1 rated critical. The most serious is Air Suspension Compressor Failure ($1,000-$3,000 repair). The most commonly reported issue is Air Suspension Compressor Failure with 2,200 owner reports. Across all issues with published estimates, repair costs range from $200 to $3,000. DIY maintenance guides at au7o.io.
On the 2004-2019 Jaguar XJ, the Dunlop or Hitachi air suspension compressor on the XJ fails due to overwork from leaking air springs or aging valve blocks. The compressor runs continuously, overheats, and eventually burns out. This is one of the most common and expensive repairs on the XJ.
Replace the air suspension compressor. Inspect all four air springs for leaks and replace any that are cracked or deflated. Check the valve block for internal leaks. Consider an Arnott or AMK aftermarket compressor for improved reliability.
High Confidence2,200 reportsLast reported by owners Jan 2026Reviewed Mar 2026
Community reported
820 owners
On the 2004-2009 Jaguar XJ, the electronic throttle body on the X350 XJ develops a sticky or erratic response due to carbon buildup and motor wear. The drive-by-wire throttle loses calibration, causing surging idle, hesitation on acceleration, and intermittent limp mode.
Clean the throttle body with approved cleaner and recalibrate using JLR diagnostic software. If cleaning does not resolve the issue, replace the throttle body. Reset the adaptive idle and throttle position values after any throttle body service.
Owner tips & cautions
TipClean the throttle body every 30,000 miles as preventive maintenance. Use CRC throttle body cleaner and a soft cloth — never scrape the butterfly valve.
High Confidence820 reportsLast reported by owners Aug 2025Reviewed Mar 2026
Community reported
750 owners
On the 2004-2019 Jaguar XJ, the rear crankshaft main seal on AJ-V8 engines in the XJ develops a slow oil leak over time. The leak worsens as the seal hardens and the crankshaft seal surface develops minor wear grooves. Oil drips onto the transmission bellhousing and can contaminate the clutch on manual models.
Replace the rear main crankshaft seal. This requires transmission removal for access. Use the updated two-piece seal if available. Inspect the crankshaft seal surface for grooves and install a Speedi-Sleeve if wear is present.
Owner tips & cautions
TipIf the leak is minor (less than a drip per day), monitor it rather than immediately replacing. The repair cost is high due to transmission removal. Replace it when the transmission is out for other service.
Medium Confidence750 reportsLast reported by owners Sep 2025Reviewed Mar 2026
Community reported
1,600 owners
On the 2004-2012 Jaguar XJ, the XJ suffers from cascading electrical faults caused by body control module (BCM) software glitches and CAN bus communication errors. Phantom warning lights, inoperative features, and intermittent failures across multiple systems are common, especially after battery disconnection or jump-starting.
Intermittent failure of various electrical accessories
How to Fix
Have the BCM reprogrammed with the latest JLR software at a dealer. Check all ground connections for corrosion, especially the main chassis ground behind the engine. Replace the 12V battery with a genuine Jaguar-spec AGM battery. Avoid jump-starting without a proper battery management system.
Owner tips & cautions
TipAlways maintain the 12V battery in good condition. A weak battery is the #1 cause of BCM glitches on the XJ. Use a battery tender if the car sits for more than a week.
Medium Confidence1,600 reportsLast reported by owners Nov 2025Reviewed Mar 2026
NHTSA Recalls7 recalls
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS
Jaguar Land Rover North America, LLC (Jaguar) is recalling certain 2019 Jaguar F-Pace, F-Type, and XJ vehicles equipped with V6 or V8 gasoline engines. The crankshaft pulley retaining bolt may have been improperly manufactured, possibly causing the crankshaft pulley bolt to fracture, potentially resulting in engine failure.
Campaign #19V03900017/01/2019
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
Jaguar Land Rover North America, LLC (Jaguar) is recalling certain model year 2016-2017 Jaguar XJ vehicles manufactured September 12, 2016, to October 26, 2016. The affected vehicles have a front passenger air bag inflator initiator that may fail to ignite during a crash, preventing the air bag from deploying.
Campaign #16V94300029/12/2016
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Jaguar Land Rover North America, LLC (Jaguar) is recalling certain 2017-2018 Jaguar XF and F-Pace, 2016-2017 Jaguar XJ and 2018 Jaguar XE vehicles. The instrument cluster (IC) may intermittently go blank.
Campaign #17V67800026/10/2017
AIR BAGS:FRONTAL
Jaguar Land Rover North America, LLC (Jaguar) is recalling certain 2010-2011 and 2017 XJ vehicles. The Restraint Control Module (RCM) software may cause the frontal air bags to deploy improperly in the event of a frontal impact crash.
Campaign #20V55700012/09/2020
AIR BAGS
Jaguar Land Rover North America, LLC (Jaguar) is recalling certain model year 2015 Jaguar XJ vehicles manufactured July 2, 2014, to December 4, 2014. The affected vehicles may have an incorrect description of the operation of Occupant Sensor System (OSS) in the owner's manual. Since the manual does not correspond with the actual Air Bag Status Indicator Lamp, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 208, "Occupant Crash Protection."
According to Au7o's analysis of 5,370+ owner reports, the 2007 Jaguar XJ has 4 documented issues. The most frequently reported are: Air Suspension Compressor Failure, Electrical Gremlins from Body Control Module Issues, Electronic Throttle Body Failure. Of these, 1 is rated critical and should be addressed promptly.
Is the Jaguar XJ reliable?
The 2007 Jaguar XJ has 4 known issues documented across 5,370+ owner reports. 1 issue is rated critical: Air Suspension Compressor Failure. 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 XJ problems?
Repair costs for known Jaguar XJ issues range from $200 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Air Suspension Compressor Failure, typically costs $1,000-$3,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2004-2019 Jaguar XJ Air Suspension Compressor Failure?
The Dunlop or Hitachi air suspension compressor on the XJ fails due to overwork from leaking air springs or aging valve blocks. The compressor runs continuously, overheats, and eventually burns out. This is one of the most common and expensive repairs on the XJ. Repairs typically run $1,000-$3,000. Severity: high.
What is the 2004-2012 Jaguar XJ Electrical Gremlins from Body Control Module Issues?
The XJ suffers from cascading electrical faults caused by body control module (BCM) software glitches and CAN bus communication errors. Phantom warning lights, inoperative features, and intermittent failures across multiple systems are common, especially after battery disconnecti… Repairs typically run $200-$1,500. Severity: medium.
What is the 2004-2009 Jaguar XJ Electronic Throttle Body Failure?
The electronic throttle body on the X350 XJ develops a sticky or erratic response due to carbon buildup and motor wear. The drive-by-wire throttle loses calibration, causing surging idle, hesitation on acceleration, and intermittent limp mode. Repairs typically run $200-$900. Severity: medium.
What is the 2004-2019 Jaguar XJ Rear Main Seal Oil Leak on V8 Engines?
The rear crankshaft main seal on AJ-V8 engines in the XJ develops a slow oil leak over time. The leak worsens as the seal hardens and the crankshaft seal surface develops minor wear grooves. Oil drips onto the transmission bellhousing and can contaminate the clutch on manual mode… Repairs typically run $800-$2,000. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
