Problem with left headlight. SAM issue?
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Mercedes E220, 2012
Problem with left headlight. SAM issue?
I thought i had a broken bulb, but it did'nt help to replace it. So i got to my local work shop and got diagnosis. Error code B1005 lightcontrol signal error (my own translation from norwegian). They said it could be broken sam module, but i have to take my car to a Mercedes dealership for further troubleshooting. My car has bixenon and ILS. E220 2012. It sounds very expensive. Have anyone had the same issue?
Last edited by AW81; Aug 14, 2020 at 04:43 PM.
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Mercedes E220, 2012
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https://www.rockauto.com/en/moreinfo...503787&jsn=515
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Mercedes E220, 2012
There's a separate ballast for the bulb. You would probably have to post the vin to get the exact part but probably something like this:
https://www.rockauto.com/en/moreinfo...503787&jsn=515
https://www.rockauto.com/en/moreinfo...503787&jsn=515
Ok, i hope it might be this simple. But why did they say that the SAM unit was probably broken?
They even called Mercedes and asked. But my car has no other symptoms and i find it strange... But if it is the ballast, could that give can bus (communication) error?
The strangest thing about this is that i had my car at the garage for a different problem a few weeks ago. When i got my car back the left headlight did'nt work, the back lid was off and the lamp was full of condense. The next day it suddenly started to work again, but after a day or two it was out again. I changed the bulb 8 months ago after it started blinking and after a few weeks it died.
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Yeah the thing attached to the bulb is the igniter. Obviously you've ruled that out already.
I am not sure why they told you the SAM is broken. It does sound like you might have more issues, but no reason not to start with the simplest first.
I am not sure why they told you the SAM is broken. It does sound like you might have more issues, but no reason not to start with the simplest first.
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Ok, i hope it might be this simple. But why did they say that the SAM unit was probably broken?
They even called Mercedes and asked. But my car has no other symptoms and i find it strange... But if it is the ballast, could that give can bus (communication) error?
The strangest thing about this is that i had my car at the garage for a different problem a few weeks ago. When i got my car back the left headlight did'nt work, the back lid was off and the lamp was full of condense. The next day it suddenly started to work again, but after a day or two it was out again. I changed the bulb 8 months ago after it started blinking and after a few weeks it died.
They even called Mercedes and asked. But my car has no other symptoms and i find it strange... But if it is the ballast, could that give can bus (communication) error?
The strangest thing about this is that i had my car at the garage for a different problem a few weeks ago. When i got my car back the left headlight did'nt work, the back lid was off and the lamp was full of condense. The next day it suddenly started to work again, but after a day or two it was out again. I changed the bulb 8 months ago after it started blinking and after a few weeks it died.
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Mercedes E220, 2012
They scanned it and that's the error codes they were getting, it's still possible that it's the sam but less likely. As mentioned earlier, the basic troubleshooting is swap bulbs from one side to the other. Usually it's either the bulb or ballast. Bad sam is less likely.
It is not the bulb. I tried with a brand new one.
But i might be the ballast. Is it possible to access without taking out the lamp?
Last edited by AW81; Aug 15, 2020 at 12:32 PM.
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Mercedes E220, 2012
Is the highlighted connections (yellow) for the lamp and ILS? Is it easy to lift out without ****ing anything up? And regarding ballast. I read somewhere that this is in the D1s bulb. If there is a separate as mentioned above, is it accessable without removibg the bumper?
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Mercedes E220, 2012
