This is pretty good advice, I'll pay you if you let me know how many timing "belts" a mark 4 VR6 has and how many have you replaced.
I'm assuming your asking me this because I referred to the timing chain as a belt. But I know the the vehicle manufacture recommends changing the timing chain every 105k and they always have the best information. I have not changed a timing belt on this specific vehicle, but I have access to databases which report millions and random repairs and know what is common and worth replacing and have replaced timing belts before just not this vehicle. I can also tell you these vehicles have problems with the waterpumps and Catalytic Converter If you do not feel 100% satisfied with my answer I'll opt-out and let another expert who has changed the timing belt themselves give you an opinion. Thanks Again.