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Thanks or the reply Andy, the Pressure Relief Valve was changed some months ago before finding the original cold or warm no go was caused by the primer pump on top of the fuel filter housing had a split diaphragm. Any idea how accessible the crank and speed sensors are AND.. why does it kick off straight away when wafted with some Quick-Start ? dur...............

Hi Richard, Welcome! Others will probably stop by and help, hopefully my memory of these beasts will help, sadly I no longer have my own. So this is one that has cropped up from time to time quite often. It's also a problem I had on my old CGV (The second one I owned). Same thing, it's a warm start problem and it's very repeatable as you describe. My suspicion though is it was mechanical. When hot there is expansion in most components, and in my thinking it's down to poor compression why it won't start. It just turns over and over, it occasionally tries to catch but then dies (If you listen carefully to the engine you can hear it almost catch then immediately fail and back to starter motor just spinning the engine). If I still had mine I'd be starting to look at the cylinder head gasket or even cylinder rings getting worn and loosing compression when hot. Once engine is running it sort of self-heals as it's not as noticeable but when starting that's when you need it most. BUT after all that, sensors also deteriorate when hot so your thinking of swapping sensors is logical. My first thoughts would be the PRV on end of the diesel rail, the crank and speed sensors too, one by one is sensible here. All of those can affect the startup and are also sensors very prone to temperature related failures. On the radio/CD you should be fine fitting. You'll need the code from the old one though. The codes are normally stored in the ECU and 'pair' when they connect up, fitting a different unit I suspect will trigger the need to enter the code, which if you don't have the original manual/code doc for the donor car might not work, but I'd say give it a go. I recall that relay you mention but cannot for the life of me remember it's function. I'll see if I can find out! Cheers, Andy

Unfortunately I'm no draughtsman, and it's in inches as I think, being American, it was done in inches (mm readings were a bit odd) Hope it helps https://ibb.co/TkY8BGq Not bothered with the short leg sizes, as I never used them. Probably used to get a start then changed to the longer ones.

If there is any wear in the suspension setup at all the tracking will only be based on where the car has settled. for instance a worn track rod will give different reading depending on how it's at rest. Obviously a respectable/honest outfit would say to you that there was wear, and that they couldn't guarantee the setting, but in my experience such places are nowadays few and far between, and if the name starts with 'Kwik anything' be very beware..........