MRC / Unit 20, good advice but it’s all you ever hear on the main RS forums and neither are convenient for anybody substantially North of the border.as said get it to Unit 20 in Cheshire or MRCin Banbury for a good healthcheck and going over. Engine is a dam good one and capable of high mileage without anything major doing to it.
If you want you’re RS checked over by a specialist and are located in Scotland then get it to Star Performance in Kirkcaldy, the main man Jim really knows his stuff. Star identified and solved my long term running issue after other more hyped specialists had failed. Kirkcaldy is only a 2 hour train ride back up to Aberdeen so for the bigger jobs you can leave it with them and catch the train home.
Routine servicing doesn’t require a trip to a specialist, any good independent can do that for you (I use Volkscentre in Kingswells), but if you want the car ‘Health Checked’ or have an issue that’s not flagging a fault code then for an Aberdeen local, Star is the place to go.