IsItAGoodCar
Reliability Guide

Common Problems with the
2009 Jaguar XJ (X350/X351)

We've identified 5 known issues that can affect the 2009 Jaguar XJ (X350/X351). 2 of these are serious faults that could be expensive to repair.

5
Known Issues
2
Serious
3
Moderate
0
Minor

All Known Issues

Air Suspension Failure

SeriousSuspension & Chassis

Air struts leak or the compressor fails to reach pressure, leaving the car "slammed" on its bump stops.

Est. Repair Cost: £400–£1,200
Warning Signs:

"Air Suspension Fault" message, Car sitting low on one or more corners after being parked, Harsh ride quality

What to Inspect:
  • Check how quickly the car rises from a cold start
  • Listen for a noisy compressor (located in the front bumper on X350)
Verified by IsItAGoodCar Research Team

Timing Chain Tensioner Wear (5.0 V8)

SeriousEngine

Early 5.0 V8 and 3.0 supercharged V6 engines have a design flaw where the timing chain tensioner piston wears through the aluminium-backed guide over time. This causes the chain to stretch and eventually jump, which can destroy the engine. The issue is most critical on pre-2013 cars.

Est. Repair Cost: £2,500–£5,000
Warning Signs:

Metallic rattling noise on cold start, Restricted performance warning, Engine misfires or runs rough, Timing fault codes (P0016, P0017)

What to Inspect:
  • Listen for chain rattle from a stone-cold start
  • Check service history for timing chain or tensioner replacement
  • Look for evidence of updated tensioners being fitted
Verified by IsItAGoodCar Research Team

Aluminum Corrosion (X350)

ModerateBodywork & Rust

Although it won’t rust like steel, the X350 suffers from galvanic corrosion, appearing as bubbling paint around the wheel arches and boot lid.

Est. Repair Cost: £400–£1,000
Warning Signs:

Bubbling paint, White powdery residue under paint chips

What to Inspect:
  • Inspect the leading edge of the bonnet, boot lid, and around the door handles
Verified by IsItAGoodCar Research Team

ZF Gearbox Surging & Lurch

ModerateGearbox & Transmission

The ZF six-speed automatic gearbox can develop surging on light throttle at 30-50mph and harsh lurching into gear when coming to a stop. This is typically caused by torque converter clutch issues or outdated TCM software and can often be resolved with a software reflash and fresh fluid.

Est. Repair Cost: £250–£800
Warning Signs:

Surging or hunting at steady throttle speeds, Harsh lurch when coming to a stop, Barking noise on downshifts

What to Inspect:
  • Drive the car at motorway speeds and feel for surging
  • Test multiple low-speed stops for lurching
  • Check if gearbox oil and filter have been changed
Verified by IsItAGoodCar Research Team

Door Lock & Window Regulator Failures

ModerateBodywork & Rust

The door lock actuators and window regulators are common failure points on the X350. Lock failures can leave doors stuck in the double-locked position, while window regulators fail with the cable-driven mechanism snapping or the motor burning out.

Est. Repair Cost: £150–£400 per door
Warning Signs:

Door fails to lock or unlock, Window drops into the door panel, Window operates slowly or makes grinding noises

What to Inspect:
  • Test all door locks and windows from the driver's switch and key fob
  • Check that double-locking disengages correctly
Verified by IsItAGoodCar Research Team

Buying Tips for 2009 Jaguar XJ (X350/X351)

  • ✓On X350 models, look for "white powder" under the paint; this is aluminum corrosion (oxidization) and is common on rivets.
  • ✓On X351 models (2010+), check the sunroof for popping or creaking sounds—a common issue often requiring new subframe bolts.
  • ✓The 3.0D V6 (X351) is a powerhouse but check for any signs of crankshaft issues or oil dilution.
2004–20082010
Check a 2009 Jaguar XJ (X350/X351) by Registration