Probably a stab in the dark as such a vague question but i thought id ask before i take the ess to the garage. got a intermittent ticking noise from the engine more often than not-almost like something caught on a belt of some sort. can some-one tell me what it might be or where to check as its really bugging me. also anywhere the refurbs alloys in london area? sorry for the lame ass question- hope its something minor.