Hi all.
(2010 MCS)

I have replaced my side marker lights with the factor bulbs...all but the front passenger side will light now. Do these wedge bulbs have polarity? Should I pop them out again and turn them around to see if the light?

Is there a separate fuse for these?

Very frustrating...removing the rear wheels to replace them then they don't work.

They were a "cascade failure"...rear driver side, front driver side, rear passenger side. Within a day or so of each other.

Oh, and replacing the spark plugs took all of 18 minutes taking my time...nice!

 

I know that LEDs do have polarity but would not think a normal bulb would.

 

I'm thinking you have an electric fault, otherwise all the bulbs wouldn't be going out like that. The weakest link fails.