I'm a owner of a 1991 500SE 126. No problem starting
in the morning, however when you try starting it for
the second time it wont start. The engine is turning
but it wont start. If you leave it for about five
minutes it will start immediately. This is very
annoying when you quickly want to stop somewhere and
have to switch off the engine. If it doesn't start the
first time you have to wait 5 minutes. Any ideas?