Probably just coincidence that your dip beam and side light have both decided to go west, check the bulbs to find out. Test the n/s main bulb in the o/s light and see if it works in there. If it does then there's a wiring fault on the n/s.
Chris P.Duck
March 2010
I can answer this question...
Side light not working one side (checked fuses all ok)?
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