camchain

Hi, Looking to buy either an A5 or A4 3.0 tdi. Found one with service history intervals as: 4000 25000 46000 67000 83000 95000 103000 Its a 2010 car. Is the service history a cause for concern, would this cause issues with the chain? I will be changing intervals to every 10k. Its a CCW...

Afternoon, just whipped the neccesary off to have a look at the camchain, Im getting a lot of rattle at low revs, especially when the engine is cold, sounds horrible, sounds a bit like a bearing grating/rasping noise to be honest. Im not sure how to test the camchain or the tensioners condition...