Hi All, I'm new here so please be gentle!!! We own a 1.6 and about a month ago the car started tapping heavily, I've taken it to a local garage who suggested it was tappets... They also suggested running a treatment through for FOUR hours + new oil and filter, I've just collected from the garage after spendingover £100, the tapping is still there, not as bad as before (yet). Has anyone else suffered or can you suggest what it might be and if so the cost implications? Thanks in advance!