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Hi Billyboy. Welcome to the 'Emperor's New Clothes' club. Few people, especially reviewers, seem to have been prepared to admit that Jaguar have messed up on the suspension design of the XF. It's deceptive because it's nice and quiet, giving a low level of transmitted noise. However, in my view, there's insufficient compliance in the springs, leading to poor attenuation of low frequency shock and vibration transmitted from the road. I believe that, in order to try and compensate for this deficiency, Jaguar have used very compliant bushes in the system. That's fine at lower speeds, but I get the impression that it leads to a higher frequency resonance in the secondary ride so that the car never seems to settle down in normal cruising - it always feels restless. After 3 years of trying to convince myself and my wife that actually there couldn't possibly be a problem with a Jaguar suspension, I finally 'came out' and recognised the fact that it's really pretty bad - the Emperor isn't actually wearing any clothes! I started with 20-inch wheels (standard on the Portfolio), which are just dreadful uncomfortable bling, as you might imagine - I fancied I could feel every stone in the Tarmac! I'm now on 18-inch wheels, which are much more comfortable, especially shod in the softer rubber of winter tyres. A further solution for me has been to get Spires to fit their Comfort suspension, which is derived from the S-type springs and shocks. This is pretty good. I feel that it's the suspension that the XF should have had in the first place. As far as I can tell, the handling hasn't suffered - in fact I find the car more secure in corners because its line is no longer upset by bumps in the road. So - rest assured that you're not alone in recognising this XF suspension design problem, so disappointing in a Jaguar. I can recommend the Spires comfort suspension as a retrofit, which goes a long way towards proper comfort. The full solution would I think mean deeper profile tyres - unfortunately I think 18 inch are the smallest I can fit on my XF-S and are still pretty low profile, so transmit more vibration to the suspension than is ideal. Incidentally, I informed my insurers (Direct Line) about this mod, but they weren't very interested and didn't change the premium. I have no connection with Spires, other than being a satisfied customer. I'm relieved that there are more and more of us recognising this suspension problem with an otherwise excellent car and I wish you success in getting it fixed! All good wishes, Martin

Hi Seb, I have just had a look on the internet -- X type Jaguar -- track rod ends -- and saw a pair on eBay for £16.95 and a few on other internet sites. Log in also the British Car Parts, as they have a some at reasonable prices. I always thought that they came in pairs, as personally I would not fit a single one, as it could leave some steering issues. I had an x type the same colour as yours on an 05 plate, which I really liked. Some other so and so liked it too and if I ever catch him and his mate I hope I have my shillelagh with me. Regards, Peter.

Diddler, The codes are on this site somewhere , but try these: Technical Abbreviations A/C Air Conditioning A/CCM Air Conditioning Control Module ABS Anti-Lock Braking ABS/TC Anti-Lock Braking / Traction Control APP SENSOR Accelerator Pedal Position Sensor APP1 Accelerator Pedal Position Sensor Element 1 APP2 Accelerator Pedal Position Sensor Element 2 AUTO Automatic Transmission B+ Battery Voltage BANK 1 RH Cylinder Bank (Cylinders 1, 3, 5) BANK 2 LH Cylinder Bank (Cylinders 2, 4, 6) CAN Controller Area Network CKP SENSOR Crankshaft Position Sensor CM Control Module CMP SENSOR / 1 Camshaft Position Sensor / Bank 1 CMP SENSOR / 2 Camshaft Position Sensor / Bank 2 D2B Fibre Optic Network DSC Dynamic Stability Control ECM Engine Control Module ECT SENSOR Engine Coolant Temperature Sensor EFT SENSOR Engine Fuel Temperature Sensor EGT SENSOR Exhaust Gas Temperature Sensor EOT SENSOR Engine Oil Temperature Sensor EVAP CANISTER CLOSE VALVE Evaporative Emission Canister Close Valve EVAP CANISTER PURGE VALVE Evaporative Emission Canister Purge Valve FTP SENSOR Fuel Tank Pressure Sensor GECM General Electronic Control Module GPS Global Positioning System HID High Intensity Discharge HDI High Pressure Diesel Injection HO2 SENSOR 1 / 1 Heated Oxygen Sensor – Bank 1 / Upstream HO2 SENSOR 1 / 2 Heated Oxygen Sensor – Bank 1 / Downstream HO2 SENSOR 2 / 1 Heated Oxygen Sensor – Bank 2 / Upstream HO2 SENSOR 2 / 2 Heated Oxygen Sensor – Bank 2 / Downstream IAT SENSOR Intake Air Temperature Sensor ICE In-Car Entertainment System IMT VALVE / 1 Intake Manifold Tuning Valve / Top IMT VALVE / 2 Intake Manifold Tuning Valve / Bottom IC Instrument Cluster IP SENSOR Injection Pressure Sensor KS Knock Sensor LH Left Hand LHD Left Hand Drive MAF SENSOR Mass Air Flow Sensor MAN Manual Transmission MAP SENSOR Manifold Absolute Pressure Sensor N/A Normally / Naturally Aspirated NAS North American Specification PATS Passive Anti-Theft System PWM Pulse Width Modulated RH Right Hand RHD Right Hand Drive ROW Rest of World SCP Standard Corporate Protocol Network TCM Transmission Control Module TP SENSOR Throttle Position Sensor TP1 Throttle Position Sensor Element 1 TP2 Throttle Position Sensor Element 2 VEMS Vehicle Emergency Message System VICS Vehicle Information Control System VVT VALVE / 1 Variable Valve Timing Valve / Bank 1 VVT VALVE / 2 Variable Valve Timing Valve / Bank 2 +ve Positive –ve Negative –ve BUS Central Junction Fuse Box Ground Bus ATB and Merry Christmas Trevor