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Old 08-27-2012, 09:38 AM
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jay_bob jay_bob is offline
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Join Date: Oct 2011
Location: Columbia, SC
Posts: 3,272
Later model 123 window switches are already LEDs.

I have a 240d so the climate control is different than yours. Mine takes 5 wedge base bulbs like the cluster, 3 behind the knobs and 2 behind the panel.

Spider also takes a wedge bulb, but you will need an LED that delivers light 360 degrees about the axis. That might be tough as I would imagine most of the wedge LEDs are set up to emit off the end.

I took apart my spider, cleaned both ends of the fibers with a q-tip dipped in alcohol, and also gently cleaned all the rocker switch faces the same way, after a fresh OE incandescent bulb it was like night and day.
2014 ML350 Bluetec (wife's DD)
2008 E320 Bluetec (my DD)
2008 ML320 CDI (Older son's college DD)
1998 E300DT (Younger son's college DD)
1987 300TD sold to vstech
gone but living on
1983 240D (body to greazzer, engine to t walgamuth)
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