It doesn't tend to be recommended nowadays but I wonder about the wisdom of this. there are a lot of products that used to be used regularly and their reputation has been wrecked by the internet; Copper ease, K&N filters and so on. It's hard to work out what's real and what may be product assassination started presumably by competitors. Add t that there are more chemical cleaning products and services out there than ever leading to massive confusion, I am aware I am not helping mush to this point
Personally I have used all of them in the past and given the right circumstances and taking into account the publicised potential shortcomings I would still use them, unless anyone has proven beyond a shadow of doubt that they are detrimental to tour car/engine whatever.
I have a K&N on my Diesel A3 never had a issue. I don't use copper-ease on brakes now as there are better product but I do use it. We bought a low mileage 10 plus year old VW campervan, so sat around a lot and not serviced much (long life, hah) and I ran an engine flush through it the first time I serviced it. It took al the gloopy black oil out of it and generally cleaned up the engine as far as I could see and we had it for a good few years and I never regretted it.
I would ,say with the kind of mileage yours has done it wouldn't go amiss. just follow the instructions to the letter and you should be fine, maybe read them first before you buy and make sure you would be happy doing what it says and if not very possibly a straight forward oil change with good quality and correct oil for the vehicle would do the trick, also regular changes thereafter
That's my 2p worth, someone will now likely shoot me down, gotta catch me first...………………………………………………………………...