Hi chaps,

My car (84k on the clock) has had a recent full service. Plugs, oil & filters, fuel filter etc.
Now, before it was serviced it ran fine.

However, since the service it now runs slightly rough at idle (this was immediately after the service and not a few days later) whether in N or D.
When driving it's super smooth, no issues at all.

Seems a bit of a coincidence to me that it was ok before being serviced, and plug replacement should have made it even better if anything. The garage I use are very good, but due to work etc, I just don't have time to take it back in. All plug leads seem to be on tight.
Any ideas what it may be?
My only guess at this time is that maybe I had a lead or two on the way out and disturbing them to change the plugs has made them worse?