VW dealers in the Manchester area are offering this at £400 all in. They are all part of the Inchape group, I think.
I got the call today, my car is an 08 with only 40k and nowhere in the handbook or in the Haynes manual can I see any mention of 4 years, only 60,000 miles. So could someone tell me where 4 years came from?
Rubber does perish, but not THAT fast! For example I am currently restoring a car that has been sat in a garage for ten years. Whilst I am replacing a lot of stuff as part of the strip down, you would be surprised how good a condition some of the rubber hoses are in.
VW make these parts to last 60,000 miles. Putting an arbitrary 4 years on as well seems a bit over the top given average mileage most non-company car drivers do. The belt does not know it is on over 4 years, but it has been manufactured to high tolerances.