Is there's any merc techs out there? Currently having issues with the father in law's 54 plate c180k hunting on idle...
It's causing massive headaches.
It's never missed a beat til a few weeks back.
A couple of local garages have had it in and there not getting anywhere with it.
It's had plugs, a coil pack changed.
But I could hear a air leak, a garage has since made a pipe up to replace a pipe that was split under the air box.
But it's still hunting on idle and throwing lights up on dash!!!
I still think there's a leak...
Help, any ideas?