If you are in a hurry, Simon auto in Germany have lots of parts, a decent on line store and are reliable on deliveries, although it all the stuff is OE.
Air filters....hmm, I’d cross referenced this for my one but have just thrown out the box, that was silly of me. It was an obsolete champion part, this is not common to the turbo or other renaults that I could see, other may have found a cross match. If you get stuck the original ones can be washed out as it’s foam. Google Renault number..that’s 7701018607 and have a rummage...there is one on Irish eBay and a couple more links showing.
For dizzy cap and rotor arm, if you can find them, then Bosch is best.
Not Bosch but here is one rotor arm.
https://www.ebay.co.uk/p/RENAULT-R25-2- ... 2151532238And here is a distributor cap
https://www.ignitioncarparts.co.uk/Part ... 491&s_vid=That’s a useful website as it gives you cross references if you can’t find the part under the gta description.
Remember it’s the same engine as a Renault 25 v6 petrol (not the turbo) or espace mk2 v6 so distributor parts and many service parts are common, like oil filters.
Failing that Volvo , Peugeot, Citroen and Deloreans have very similar engines so you can often cross match from those cars it’s riskier than Renault cross matches as the ancillaries can be quite different.
Happy hunting.
This might help...but I don’t think the air filter is correct...
http://www.bosch-automotive-catalog.com ... q2u4o2f3c4Lee