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Old Mar 24, 2020 | 02:54 PM
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W211BT's Avatar
W211BT
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2007 Mercedes E320 bluetec
H7 bulb
Hi, I have a 07 e320. I installed some H7 LED and they came on for just a second and then turned off and just kept repeating. Does anyone know what I can do to stop it from turning on and off? Or any suggestions on LED bulbs I can buy that’ll work? Please and thank you!
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Old Mar 24, 2020 | 04:54 PM
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rtbrjason
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07 E550 4M - 11 Audi TT - 99 Expedition EB
its probably due to the bulbs not be canbus compliant. You can purchase resistors to wire in-line, but it’s better and easier to get canbus bulbs.

Originally Posted by W211BT
Hi, I have a 07 e320. I installed some H7 LED and they came on for just a second and then turned off and just kept repeating. Does anyone know what I can do to stop it from turning on and off? Or any suggestions on LED bulbs I can buy that’ll work? Please and thank you!
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Old Mar 24, 2020 | 05:59 PM
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Originally Posted by rtbrjason
its probably due to the bulbs not be canbus compliant. You can purchase resistors to wire in-line, but it’s better and easier to get canbus bulbs.
Exactly. MBs (and all Euros actually) require canbus enabled lights for exterior. Can't just plug in any type of bulb.
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Old Mar 24, 2020 | 11:09 PM
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2007 Mercedes E320 bluetec
Originally Posted by AZN Optics
Exactly. MBs (and all Euros actually) require canbus enabled lights for exterior. Can't just plug in any type of bulb.
so if I get a canbus compatible bulb, is it ok if it’s 100whatts? Or would that get to hot
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Old Mar 24, 2020 | 11:28 PM
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100W is way too hot! Stock OEM is 50W. Most go down to 35W for heat related reasons.
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