Thanks for your reply, Brad

Due to cornering forces you sometimes find the fronts wear a little more on the edges, worth swapping front to back for that to even wear out.. All i've ever done is keep an eye on the tread depths and wear patterns and if one end is wearing faster than the other (more of an issue with FWD only) then i swap front to rear at the point i've hopefully judged all 4 will be down to my personal 3mm minimum, can't recall the last time i bought two tyres even on my 2WD vehicles. I know some go in for clockwise rotating, and to be fair that would be quite easy if your spare wheel matches the others, but if you don't include the spare, and i never have because it's almost never been the same tyre type, then i just swap same side front to rear, which is easy using just one jack and one axle stand to raise one side completely.

Thank you for your reply. Yes she was a lovely vehicle. However they may be a little light at the end of the tunnel. Apparently I can request a subject access request for the breakdown log from Greenflag that will tell me which local recovery company they used. Where they also will have an archived log of who attended the breakdown so let’s cross our fingers😂😂. The really sad part was she only overheated due to a rusty rad pipe and lost the coolant. Thanks again for your reply

I used to work on a lot of American cars back in the day and one of the strange phenomena was that you used to get a lazy starter and also a lot of mechanical noise when turning over and this was due to a bent armature which over time used to get worse - never seen it on anything ever since though

If there are any manufacturer details and also any other numbers you may be able to research on eBay, bear in mind that the compressors would have been made for many models of vehicle so chances are it would be the same one fitted to another make and model of car