E-Class (W211) 2003-2009

Cheap trick to installing LEDs without issues!

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Old Oct 31, 2014 | 09:37 AM
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2016 E63s Wagon - CCB & CF package
Cheap trick to installing LEDs without issues!

Hey all,

Between my two W211's and a W209, I've tried all the canbus, resistor, regular LED combinations, until it hit me a few days ago working on my E500....why not add a factory bulb in parallel to the LED. That way you know for SURE that it'll trick the computer...no need to worry about resistor ohms, wattage, etc.

For the interior, I added one 194 bulb in the whole series for the footwell lights. I bent the 194 bulb wires, slipped them onto the connections under the drivers feet. If you bend the bulb back over the connector, there is a lot of empty space under the dash so the bulb has a ton of free space around it and it wont be close to touching anything.

Its been working PERFECT for nearly a week now. The LEDs I am using are the regular (not canbus) cheap-o Hong Kong imports from eBay. Not a single flash, bulb-out or anything, and it cost me 30 seconds of work! Its reversible in the same amount time. I have the ambient mode, full brightness with doors open, no flashing and they shut off with the other lights just as they should.

See picture below for a visual.

I know that people have had issues with doing the trunk LEDs as one would always flash, so I will try this method in the trunk as well and report back. I am almost certain that it will work like a charm. I'll report back.

NOTE: Try this at your own risk. I highly advise making sure that the bulbs will have enough space to cool properly and that they don't touch other wires, etc. I assume no liability for any issues anyone may experience attempting this.
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Old Nov 2, 2014 | 01:57 PM
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2003 W211 E500
The only two that flicker for me are inside trunk and license plate I'm going to fiddle around with this
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Old Nov 2, 2014 | 03:32 PM
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2016 E63s Wagon - CCB & CF package
Originally Posted by Oneslowa4
The only two that flicker for me are inside trunk and license plate I'm going to fiddle around with this
I JUST tried it in the trunk and VOILA! It works! No flickering, nothing.

I put the 194's on both sides and folded them forward toward the LED bulb that way they sit nicely in that indent away from everything.

Its been 2 hours and i opened the trunk quite a few times to test them, and not one flicker.
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Old Nov 2, 2014 | 03:34 PM
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2003 W211 E500
Looks like I'm going to get off my *** and do this right this second.... Hate the look of non led lights.... This will now finish my conversion.
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Old Nov 2, 2014 | 03:36 PM
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Originally Posted by Oneslowa4
Looks like I'm going to get off my *** and do this right this second.... Hate the look of non led lights.... This will now finish my conversion.
Basically fold the bulb in opposite direction of how i have it in the above pic. I removed the plastic cover to test all the positions and thats the best way.

Let me know how it goes!
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Old Nov 4, 2014 | 11:46 PM
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Very interesting this may get me to try led's again as i went through way to many sets over the years on the w203 and finally said f.IT
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Old Nov 5, 2014 | 12:25 AM
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Originally Posted by samaritrey
Very interesting this may get me to try led's again as i went through way to many sets over the years on the w203 and finally said f.IT
Sounds good!

All my interior bulbs are regular LEDs, no canbus/error-free b/s.

For the dome and doors, didnt even need to add anything. Just plain old LEDs work 100% fine.

The only concern (if its a concern for you) the under the door bulbs are slightly illuminated as soon as you put the key in but go off wirh key off. I had it this way for a while then when i was bored attampted to correcr and that i solved with a 1W-1000ohm resistor from radioshack. It works like factory and the 1000ohm resistor stays very cool. Barely warm to touch after 3-5mins
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Old Nov 5, 2014 | 10:57 AM
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06 E280
I purchase some leds, that were POS, and later i purchase this ones, and they have worked flawless since then:

This are headlights leds 5000K:
http://www.ebay.com/itm/Kolite-2-Pcs...-/301016659825

This goes everywhere else:
http://www.ebay.com/itm/251526661371?_trksid=p2060778.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
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