Headlight replacement troubles
Thread Starter
Newbie
Joined: Nov 2016
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GLK 350
Headlight replacement troubles
Noob here. Y'all take it easy.
Headlights on Golflady's 2007 C230 Sport have always sucked. Finally they have become so cloudy, I decided to replace them with some I found on Amazon.
Long story short. After 2 tries, with 2 different new assemblies, the driver's side replacement will not work. No turn signal. No low beams. No high beams.
Original driver's side works fine. Replacement on the passenger side works fine and is far superior.
Vendor says replacement assembly was tested before shipping.
Any ideas?
Headlights on Golflady's 2007 C230 Sport have always sucked. Finally they have become so cloudy, I decided to replace them with some I found on Amazon.
Long story short. After 2 tries, with 2 different new assemblies, the driver's side replacement will not work. No turn signal. No low beams. No high beams.
Original driver's side works fine. Replacement on the passenger side works fine and is far superior.
Vendor says replacement assembly was tested before shipping.
Any ideas?
Last edited by golfman; Feb 23, 2018 at 11:13 AM. Reason: Clarity
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Joined: Sep 2016
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From: New England! :-)
2005 C230K Sport Coupe
Don't both headlights have the same power connector?
If so, it seems simple to see what the problem is.
Swap headlights, see what they do.
If the pass-headlight does work on the driver's side, and the driver's-headlight doesn't work on the pass side, then it's a bad driver's-headlight.
If the pass-headlight also doesn't work on the driver's side, but the drivers-headlight works on the pass side, then it may be the SAM (MB headlight driver).
Good Luck!
If so, it seems simple to see what the problem is.
Swap headlights, see what they do.
If the pass-headlight does work on the driver's side, and the driver's-headlight doesn't work on the pass side, then it's a bad driver's-headlight.
If the pass-headlight also doesn't work on the driver's side, but the drivers-headlight works on the pass side, then it may be the SAM (MB headlight driver).
Good Luck!
Thread Starter
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Joined: Nov 2016
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GLK 350
RedGray - Thought of that. Different connectors for left and right. Square end and round end with nubs(?) for top and bottom inside the connectors.
I wondered if there was a module that wouldn't allow it to work. Did unplug the passenger side and tried the drivers side by itself. No luck there either.
Figured this would have been an issue with others but see nothing on the reviews.
Thanks for the help. Will try another brand, I guess.
I wondered if there was a module that wouldn't allow it to work. Did unplug the passenger side and tried the drivers side by itself. No luck there either.
Figured this would have been an issue with others but see nothing on the reviews.
Thanks for the help. Will try another brand, I guess.
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Joined: May 2017
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C320
Are these aftermarket made in China or Taiwan replacement headlights? The internal wiring on these is notoriously bad. If you're handy with the multimeter you could check for continuity between the pins on the plug and the bulbs. I suspect that's where the problem is.
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Thread Starter
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Joined: Nov 2016
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GLK 350
tjts1- Correct. Did test the pins compared to the OEM. Same readings.
Noticed that some replacements are for 2001-05. Others 06-07. Seller description stated that the replacements would work on an '07 but I wonder.
Fitment may be the same but did the electrics change in 2006?
Thanks again...
Noticed that some replacements are for 2001-05. Others 06-07. Seller description stated that the replacements would work on an '07 but I wonder.
Fitment may be the same but did the electrics change in 2006?
Thanks again...
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