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View Full Version : how to reset check lic plate lights


tvenu
01-12-2008, 01:30 PM
i have these reverse and lic plate light check mgs coming on and since i installed new led bulbs it does not go away.

Big "J"
01-12-2008, 03:29 PM
Did you replace the reverse lamps?

I'd make sure they are the correct type of bulbs. BMW is real picky about the type of bulbs used.

tvenu
01-12-2008, 04:12 PM
yeah found out that these new LED bulbs are nice looking but they are lower voltage so the BMW system thinks they are out, you need some sort of resistor to simulate the normal amps it consue, its funny the system really gets confused at times it says check controls is all ok and then back and forth. Will restore my old ones do not want to risk damage to the electrical for a cool bulb.

here they are
http://cgi.ebay.com/ebaymotors/2000-06-BMW-E53-X5-WHITE-LED-REVERSE-LICENSE-LIGHTS_W0QQcmdZViewItemQQcategoryZ33713QQihZ015QQi temZ250141434620QQrdZ1QQsspagenameZWD1VQQtrksidZp1 638Q2em118Q2el1247

ealzar
01-15-2008, 10:42 AM
i have LEDS on mine and get that message all the time at start up. Any resistors that you guys recommend and DIY?

Big "J"
01-15-2008, 10:59 AM
The is a forum poster name "BMW-tech" out of California. I see him all the time on the e46 forum. You might be able to send a private message to him and get his thoughts.

Searching other bmw suppliers, bavauto.com, realoem.com, autohausaz.com and see what they have and recommend?

ealzar
01-15-2008, 11:04 AM
cool, will do, thanks a lot!

ealzar
01-15-2008, 01:59 PM
info obtained. You will need a 50 ohm 10W 5% Wirewood resistor from radio shack and the way you installed it is as follows (courtesy of a E60 member):

Looks pretty straightforward!

tvenu
01-15-2008, 02:41 PM
oh wow thanks, now question for those with factory warranty do we take this risk and run into a factory warranty void situation or do it and if it messes up remove it? hmmmm

ealzar
01-15-2008, 07:25 PM
mine has no warranty anymore so no worries at all. You might want to do some research just in case, and yes, we dont want to void any warranty. :)

tvenu
01-18-2008, 07:29 PM
here they are, i wll try this weekend its 1.99 so what the heck

http://www.radioshack.com/product/index.jsp?productId=2062292&cp=&sr=1&origkw=resistors&kw=resistors&parentPage=search

tvenu
01-19-2008, 03:31 PM
alright on the X5 these resistors are too big to sit in the cavity space of the bulb, so to no avail again. i got me a set and when i popped the bulb out the resistor took all the space. anyone did this for a X5? the pics above are for an E60

lennynchris
01-19-2008, 09:07 PM
alright on the X5 these resistors are too big to sit in the cavity space of the bulb, so to no avail again. i got me a set and when i popped the bulb out the resistor took all the space. anyone did this for a X5? the pics above are for an E60

10W is a big honking resistor... If the point is to bring up the voltage drop at the bulb, then you can probably get away with a smaller wattage. Buy several wattages (all at 50 ohms), plug them in one at a time, and keep decreasing wattage until it gets "too" hot.. Then go back to the next higher wattage.