Morning all,
Hope had a good Xmas! 
I am in the market for a used mk7 R. Prices seems to be comign down to the 24k mark now and in reaching distance!!
However my knowledge on problems of them isn't 110%. Currently have mk6 GTI which I bought used and researched endlessly to find out about the tensioner and possible water pump problems.
My Question to you mk7 users/buyers is
1) Are there any major/minor problems, faults found with the R that should look for?
2) Any recalls (Ie buy one made after certain date)??
3) Whats everyone averaging MPG. Round the town around 30? Pressuming might be "tad" better than my mk6?
I was aware there was some "great" deal for leasing them in the early stages? but this was soon put to a stop. IS this going to mean a surge in supply on the used market possibly decreasing the value or whats your thoughts?
Thanks in advance! Your feedback could just persuade me 
Chris,
Not sure whether you're buying outright or bank loan or VW finance - if it's the latter, you might find that a well discounted brand new one has around the same monthlies as an early 2014 one that you might find for £24k, due to residuals and a lower % APR. As always with cars on finance, the sticker price isn't really what counts, it is the monthlies.
As far as i'm aware, the R has no recalls against it - i've not been asked to come in for any work on mine, although they could've done it on the sly when mine was in for other warranty work.
Mine had a new Turbo under warranty at 4k miles. It didn't catastrophically fail, it just stopped working a few times. I've had issues with my ACC sensor too, but that could've happened with any MK7 Golf as the unit is common to all.
Being a 7 VW Diesel miser for many years, switching to an R was a big deal for me, but I don't regret it at all - it is an amazing car when you give it a workout. Fuel costs right now help the switch - my GTD was running diesel at about £1.40 a litre when I first got it, but with the price drops as OPEC overproduce to try to bankrupt US Fracking operations, and Tesco Momentum 99 being about £1.05 a litre right now, the cost per mile for my 32mpg R right now isn't far off my 46mpg GTD that preceded it when fuel prices were higher.
For mpg - the R is much thirstier at motorway speeds than a GTD - the GTD is just ticking over at 2200rpm doing 80 in 6th, the R/GTI are doing 3100rpm. Doing town speeds (30-60mph) the R is surprisingly economical.
I get around 30mpg sat on the motorway doing 80, about 35mpg sticking to the limit on 40/50mph roads, and around 32mpg overall with Momentum or Shell V-power. Mine is a manual though - most R DSGers average 28mpg and previous experience with my Dad's DSG Golfs is that DSG is about 10% thirstier in real life driving, even if the official figures don't reflect that.
Traction is the main reason I changed to an R, I was sick of the GTD tranping all the time, not a murmur from the tyres in the R, except when pulling out from a side road in the wet, with your foot down. In a straight line from a wet standstill there's no drama at all.