Trying replace old fog lamp with DRL led. but no luck
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Junior Member
Joined: Aug 2022
Posts: 20
Likes: 4
C250 W204
Trying replace old fog lamp with DRL led. but no luck
Hi there! a few weeks ago I've bought a set of DRL led for my car (c250 2009) and today I tried to fit it into my car but I have some issues.
1. After plugging the power jack into that DRL and turning on the light, then the new DRL led keeps flashing.
2. On the dash show up the error "fog lamp".
After a few mins, I figure out about my new DRL led consumes 11w but the old fog lamp use 50w. I've tried to add more led lights to make it work together with DRL (total of about 30w) and WOW my new DRL led works well... That means my car knows that DRL led consumes power less than an old fog lamp.
Any suggestion that can help me make it work without plugin more LED light?
Here is my video about new DRL-led flashing!
thanks in advance!
1. After plugging the power jack into that DRL and turning on the light, then the new DRL led keeps flashing.
2. On the dash show up the error "fog lamp".
After a few mins, I figure out about my new DRL led consumes 11w but the old fog lamp use 50w. I've tried to add more led lights to make it work together with DRL (total of about 30w) and WOW my new DRL led works well... That means my car knows that DRL led consumes power less than an old fog lamp.
Any suggestion that can help me make it work without plugin more LED light?
Here is my video about new DRL-led flashing!
thanks in advance!
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Joined: Sep 2013
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2021 GLB250 FWD, 2023 GLA250 FWD, 2013 C250, 2015 GLK350, 2005 ML350SE, 2003 E320
After a few mins, I figure out about my new DRL led consumes 11w but the old fog lamp use 50w. I've tried to add more led lights to make it work together with DRL (total of about 30w) and WOW my new DRL led works well... That means my car knows that DRL led consumes power less than an old fog lamp.
Any suggestion that can help me make it work without plugin more LED light?
Any suggestion that can help me make it work without plugin more LED light?
If you haven’t solved this already:
My back of the envelope calculations show a shunt resistor (i.e., connected in parallel with the led light bar) of 6.8 ohms, 25 watts, @20% tolerance is needed. This a common resistor for this application. $2-$5 USD each. Tighter tolerance is okay but may cost a bit more.
