Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
the coils should pull out past the strut mount?
you have to bend the rubber tube a bit but this is perfectly fine
and with this level of mileage I'd agree to replace the spark plugs and its also possible you may have 1 or 2 coils that are faulty?
best way to identify this is with a scan tool that can monitor the engine values and show which cylinder is misfiring
regarding the mirror heater these don't get really hot enough to feel by hand but its just enough to remove the condense
are they clearing OK in cold weather?
it is tight normally so it does sound like your engine mounts may have sagged a little
they are an 'active' mount and are filled with an oil to help with damping noise
so check over the mount for signs of black oily fluid leaking out as they may need replacing
the easiest way to find a leak is to remove the retaining bolt from underneath. The bolt will be wet with fluid if it is leaking