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E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 10-21-2019, 05:07 AM
theroux theroux is offline
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LED indicator bulbs - how to avoid hyper flash?

I've been tempted lately to change my indicator bulbs to LED bulbs but I'm well aware that there would be light out warnings on the iDrive if I did this, which I'd counter by having the cold/warm checks coded out by a shop I know. However, one issue I've also read about is hyper flash which I'm not sure how I would fix. Has anyone changed their indicators to LED? I'm a pre-LCI so it's the only choice I have.

I've also thought about changing out the brake lights (not the tails, just the stop bulbs) with LED since they light up quicker and would definitely improve safety, but I also wonder what might happen if I did that.
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Old 10-21-2019, 06:48 PM
Toddmori Toddmori is offline
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You need a series resistor (CANBUS error canceling). The relay is tripped by resistance in the line, and LEDs have much less resistance. Same reason you get hyper flash when you have a short on a conventional system

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  #3  
Old 10-21-2019, 08:55 PM
theroux theroux is offline
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Interesting, thanks for clearing that up. I've heard that there are some bulbs with inbuilt resistors but I've found no such thing.

What about for the brake lights? I imagine they wouldn't hyper flash considering they're not made to flash in the first place and wouldn't flicker on start up if I code out the checks.
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Old 10-22-2019, 03:48 AM
Toddmori Toddmori is offline
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I'm not sure, as I haven't done anything with my taillights, however, my flights do have a wicked flicker on vehicle startup, when the system is doing diagnostics

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  #5  
Old 10-24-2019, 01:29 AM
theroux theroux is offline
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Quote:
Originally Posted by Toddmori View Post
I'm not sure, as I haven't done anything with my taillights, however, my flights do have a wicked flicker on vehicle startup, when the system is doing diagnostics

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Is that with the coding done or is that without coding?
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Old 10-24-2019, 03:46 AM
Toddmori Toddmori is offline
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That is with coding out errors with Carly

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  #7  
Old 10-24-2019, 05:19 PM
theroux theroux is offline
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Originally Posted by Toddmori View Post
That is with coding out errors with Carly

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Interesting. Did it let you code out hot and cold checks or was it just a generic disable function? I was under the impression from others that the flicker is only caused by the system sending out small resistance checks and coding out the checks stops those signals.
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Old 10-27-2019, 06:45 PM
Toddmori Toddmori is offline
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Quote:
Originally Posted by theroux View Post
Interesting. Did it let you code out hot and cold checks or was it just a generic disable function? I was under the impression from others that the flicker is only caused by the system sending out small resistance checks and coding out the checks stops those signals.
Just coded out the errors. The flicker only last 30 sec, right at startup. Pretty sure it is just the system diagnostics

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  #9  
Old 10-28-2019, 09:07 AM
twh twh is offline
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Just FYI...the bulb check is not only at startup. There is a periodic bulb check after startup -- I don't know the period.
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Old 10-28-2019, 09:43 AM
Toddmori Toddmori is offline
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Originally Posted by twh View Post
Just FYI...the bulb check is not only at startup. There is a periodic bulb check after startup -- I don't know the period.
After I get the front end put back together, I'll have to watch for that

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  #11  
Old 10-28-2019, 12:32 PM
audiophool audiophool is offline
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I solved the LED compatibility problem by leaving the factory lights in place. I bought an X5 from a friend who had gone nuts replacing every possible lamp with LEDs. After a short time they all started flickering and some failed. I replaced them all with incandescent.
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Old 10-28-2019, 02:06 PM
Kurt_ Kurt_ is offline
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You have to disable the cold and warm checks, not just the warnings, to get rid of the flicker.
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  #13  
Old 10-28-2019, 10:39 PM
theroux theroux is offline
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Originally Posted by Kurt_ View Post
You have to disable the cold and warm checks, not just the warnings, to get rid of the flicker.
Thank you that's what I was thinking. I find it odd then that it's possible to turn off the errors but leave the hot and cold checks active.
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  #14  
Old 10-29-2019, 05:14 PM
Toddmori Toddmori is offline
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Originally Posted by theroux View Post
Thank you that's what I was thinking. I find it odd then that it's possible to turn off the errors but leave the hot and cold checks active.
It is more disabling the error alerts than removing the errors

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