SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: Headlight wires

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Old Oct 18, 2020 | 09:46 AM
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MBMidas's Avatar
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2004 SL500; 2016 E400; 2019 GLC300
Headlight wires

I swapped out the inner most yellow looking light bulbs on the headlights with leds. These are the lights that turn on with the parking light selection. The sheathing on the wires was good when I went in, but after changing the bulb...there is now alot of bare wire! Is this common?
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Old Oct 20, 2020 | 09:40 AM
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From: Vero Beach FL
2007 sl550
I had the same problem with my 2009 SLK. The insulation just crumbled and fell off !! Seems like MB went overboard on "green" materials for the insulation during that period.
Haven't seen anything on my present 2007 SL but haven't worked on much wiring yet.
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Old Oct 22, 2020 | 09:27 PM
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CL
Originally Posted by MBMidas
I swapped out the inner most yellow looking light bulbs on the headlights with leds. These are the lights that turn on with the parking light selection. The sheathing on the wires was good when I went in, but after changing the bulb...there is now alot of bare wire! Is this common?
ouch
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Old Oct 22, 2020 | 10:14 PM
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MBMidas's Avatar
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2004 SL500; 2016 E400; 2019 GLC300
The strange thing....i have four headlights, two are original to the car, and two are from California.... they all have the sheathing coming off after touching it.
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