Hi, had the timing chain tensioner replaced last year as had some ticking noises in the morning when the car was cold. The noise had seemed to go away but recently I think I hear it again. Is there anybody that I could bring it to get the chain checked? The car has done 67k miles. Don't want the chain snapping so am hoping to get it checked. How much would it cost for check and how much would it cost for the timing chain and the guides to be replaced? Is this a common issue on the petrol n43 or is it mainly on the diesel n47. As I have read so much on the Internet I am not sure if this is the problem or not. Thanks in advance.