went to see them a few weeks ago to get an ignition check,, have a missfire, told the manager/supervisor.?? i had a 220ce 1993,, and wanted a diagnostic on my ignition, he looked a bit puzzeled then asked if i was in the car, because he wanted to see it, ie he did'nt know what it was,!!, he then said i'd have to come back in a few day's to see the owner to find out if their test equipment was compatable with my car,, he never even bothered to lift the bonnet to have a look at the test socket to see if it would take their test set, my first impression