Jaguar XJ
X350 · 2003-2009Faults written up for this generation: likely causes and the order to check them in.
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6
Air Suspension Fault
On the X350 the usual culprits are a leaking air spring and a tired compressor. The valve block, a height sensor, a wrong-rated fuse, low charging voltage or a module…
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1
CD Changer Not Working, CDC Error
Before blaming the changer, check its supply at the boot fuse box: damp there scorches the feed wires, and a second changer showing the same CDC Error points the same…
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3
DSC Not Available, Engine System Fault
On the X350, DSC Not Available with ABS Fault is usually a rear wheel speed sensor or a weak battery, not the ABS unit.
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4
Jaguar XJ8 (X350) Headlight Not Working, Bulb Failure
On the X350, headlamps that go out, flash or flicker are usually the light stalk or a corroded earth behind the lamps, not the bulbs.
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5
Jaguar XJ8 (X350) Misfire and Rough Idle
On the X350 a misfire usually comes down to one ignition coil, and a failing coil can even upset the other modules and the gearbox.
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1
Radio Code After Battery Change
Find the code before the battery comes off, not after. It is normally on a plastic card in the glovebox wallet.
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2
Radio No Sound
On this car the audio modules sit on one fibre-optic loop, and one dead module anywhere on it silences them all — most often something in the boot, the CD changer first.
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2
Sat Nav Wrong Position or No Address
These navigation faults rarely need a new navigation unit. A map disc of the wrong age stops address entry, a position hundreds of miles out is a calibration job, and…
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3
Jaguar XJ8 (X350) Shocks Failure, Adaptive Damping Fault
On the X350 a failing shock is usually an air leak: the air spring around the damper, on the corner that sags.
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2
Speakers Not Working
When some speakers play and others don't, it isn't the fibre-optic loop — a broken loop silences everything at once.
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4
Touch Screen Black or Flickering
The touchscreen runs radio, climate and navigation, so a dark one feels like a dead car.
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2
Won't Start, No Crank
On the X350 a no-crank splits into two questions: does the car accept the key, and does power reach the starter? Watch the security lamp and try the spare key first…