AO Gold Member
Join Date: Sep 2002
Location: The Netherlands
Re: Chuffin headlight bulbs!
I had the same problem with my 146TI changed bulbs 14 times !!! in 6 years. Always made sure that the lights were off when starting the engine... the 156 I have now, switches the lights off automatically when starting , sofar no new bulbs, but I have the 156 for only 1 year now.
There must be a peak voltage at a certain moment... in your 147 , at 15 volts or 15 + the bulbs will self destruct (MI style)