Moss

Got out the car yesterday (MY99) and noticed sidelight was very dim on near side. Took lens off and found the bulb had a mirror like finish and was letting very little light through. Had a look round the rest of the lights and both number plate lamp bulbs and near side tail lamp had done the same??

Anyone else suffered this? Is it a trip to the dealer perhaps, or just bad bulbs and replace? This kind of thing says to me a poor earth somewhere?

Ta. Moss