Instrument panel (speedometer) light out
'06 Mariner with one of apparently two lights out that illuminate the speedometer. Here, the left side. Two questions.
1. How do you replace the burned out/malfunctioning light?
2. Should I replace all the lights when (I presume) the instrument panel is open for service? I don't know whether these lights are failure prone or not.
The Mariner has 85,000 miles on it and I'd rather do the job one time. I don't even know if these are LEDs or regular old-fashioned bulbs.