A few little updates. First of all I had the EML come on, but the car still ran great.
Having looked at the fault codes, and chatting with someone on FB with similar, I purchased a new fuel breather valve - only 24 notes off eBay. I'm still to fit it but hopefully it will take care of the issue. The light is only intermittent - and mostly when it's really hot outside.
I also noticed the rear discs were looking pretty crap, so new discs, pads and wear sensor were fitted to the rear on Friday.
Car is filthy and really needs a clean!!
One result was at last finding a gear knob with technical graphite trim on it. The leather was gone, so the trim went in to my own knob (oo-er!) 18 notes well spent I think given the scarcity.
I've still got may VANOS repair kit to fit - I'm looking forward to that as hoping it may improve my 20MPG at best results! I've got no VANOS rattle but guessing with 127k miles on the clock and no evidence of them being replaced, they must need doing.
And, despite being silver, this one is starting to get under my skin a bit now. Maybe I won't sell it and get another 530d after all