Rear right Tail Light Circuit Board
Thread Starter
Member
Joined: Sep 2009
Posts: 96
Likes: 0
From: Vancouver, BC
2010 GLK350 4matic and my favorite Vintage 1982 PK Ripper Looptail
Rear right Tail Light Circuit Board
I've had issues with the Rear right Tail Light Circuit Board since day 1.
Changed lots of light bulbs during the 1st 2 years.
Of course, MB techs can't find anything wrong with it.
Recently, the bottom light (parking light) wasn't working, I swapped new bulb and still not working. So, I think it's the circuit board.
Anyone else had issues with Tail light Circuit board malfunctioning ?
I did a recall search, and C300 sedan & others did have recall on this issue.
I called MB and they want to diagnose and probably charge me an arm and a leg for it. MB said the circuit board cost $35. That sounds too cheap, I'll bring the exact part in to order one. Hope it's a bad board and no faulty wiring.
Please share if you have similar experience.
Changed lots of light bulbs during the 1st 2 years.
Of course, MB techs can't find anything wrong with it.
Recently, the bottom light (parking light) wasn't working, I swapped new bulb and still not working. So, I think it's the circuit board.
Anyone else had issues with Tail light Circuit board malfunctioning ?
I did a recall search, and C300 sedan & others did have recall on this issue.
I called MB and they want to diagnose and probably charge me an arm and a leg for it. MB said the circuit board cost $35. That sounds too cheap, I'll bring the exact part in to order one. Hope it's a bad board and no faulty wiring.
Please share if you have similar experience.
Super Member
Joined: Aug 2011
Posts: 861
Likes: 38
From: Philly area
350 GLK, C280
Sorry to say a bad board does not usually cause a bulb to burn out unless it is so intermittent that the bulb is flashing like much faster than a turn signal. If the bulb burn out, you probably have a faulty light control module in which a component is allowing the voltage to spike. Hard to trouble shoot and harder on the pocket book to replace.
If a new bulb doesn't work and a board swap doesn't solve it, then you are in the same place with a bad light control module.
If a new bulb doesn't work and a board swap doesn't solve it, then you are in the same place with a bad light control module.
