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I'm new here and hope someone can point me in the right direction.
I have bought C300 4 Matic 2020 from canada imported to Europe.
I have changed everything to comply with the European standards except that my turn signal (rear) is blinking read. I bought new light but they look exactly they same as the one I have.
So the first question that came up is that his have to be a programmatic issue ?
Its the only thing left for it to be approved by the European standard.
Are you sure you bought the right light? I haven't done the conversion myself but I was thinking of getting one that has the dynamic blinker and they are available so it would look like the SAM provides power to the light when you put your turn signal on and doesn't control what colour the light is. https://www.aliexpress.com/item/1005001454380979.html is the one I considered, maybe it can be useful for you
As far as I can tell there is no difference in the physical appearance between the NA and EU taillights, but that doesn't say anything about the internals and there is definitely also an aspect of programming, because the light patterns are different in NA due to the red blinkers. Specifically when the brake lights are on to make sure the drivers behind can tell the difference between the brake lights and the blinker since both are red. If I'm not mistaken in NA the brake light blinks together with the blinker to make it clear, but that is not allowed or necessary in Europe since the blinker is amber. However in Europe the brake lights blink under hard braking to alert the drivers behind. This function is not enabled in NA.So there is definitely coding that has to happen to make sure the taillights behave according to the market you are in.
Last edited by superswiss; 02-16-2021 at 05:54 PM.
As far as I can tell there is no difference in the physical appearance between the NA and EU taillights, but that doesn't say anything about the internals and there is definitely also an aspect of programming, because the light patterns are different in NA due to the red blinkers. Specifically when the brake lights are on to make sure the drivers behind can tell the difference between the brake lights and the blinker since both are red. If I'm not mistaken in NA the brake light blinks together with the blinker to make it clear, but that is not allowed or necessary in Europe since the blinker is amber. So there is definilty coding that has to happen to make sure the taillights behave according to the market you are in. However in Europe the brake lights blink under hard braking to alert the drivers behind. This function is not enabled in NA.
All this could be done using a microcontroller inside the tail lights though or be controlled through the rear SAM, so the question is if @m310 has bought the correct tail lights to start off with.
All this could be done using a microcontroller inside the tail lights though or be controlled through the rear SAM, so the question is if @m310 has bought the correct tail lights to start off with.
It could be and I don't know how MB solved it, but I know in Audis for example it's coding. A lot of US owners like to code the EU behavior into their NA lights and also swap out the headlights to get rid of the amber reflector, and the EU headlights also needed to be coded in. There's increased standardization in the light assemblies to save production cost and then the regional differences are just coding. For example the Intelligent LED lights in NA are the same as the EU headlights, but in NA they are programmed to simulate adaptive high beams, whereas in EU they darken the areas of oncoming cars, but physically the headlights have the same 80 LED matrix and other than the amber reflector for NA are identical.
Last edited by superswiss; 02-16-2021 at 06:20 PM.
I bought the correct lights but didn't swap them as they looked exactly the same in detail and If I connected to the right of the box they would still blink red (where the brake light is as you mentioned). Someone told me that a cable rewiring in the adapter. needs to be done and then program it to EU standard. To answer your question, I still have the original lights on since they looked the same.
@PaulR7 - Appreciate it, but they are not the same in my case.
If you guys look at the attachment you could see they are identical the only difference is the blinker on the "brake light" spot instead of on the "white" area.
Original lights Light with EU standard from MB Service center. They look exactly they same to me.
If your car has the adaptive high beam assist, the Canadian regulations have had this feature turned off until the 2021 models; therefore, it won't work like the European intelligent headlights. You might be able to get it coded at a European Mercedes dealer though.
02-16-2021, 04:51 PM
