I HAVE AN 03' MINI S YESTERDAY I WHILE I WAS DRIVING MY INT ILLUMIATOR LIGHTS WENT OUT SO DID MY OEM INDASH NAV SYSTEM AND I HAVE NO POWER TO AUTO AC/HEATER UNIT..I CANT GET IT TO WORK...EVERYTHING ELSES SEEMS TO WORK MY MINI TURNS OVER PEFECTLY MY HEADLIGHTS GO ON WHEN I TURN THE SWITCH..;.TURN SIGNAL WORK BUT I GET NO FLASHER INDICATOR IN MY DASH...WHEN I PUT THE KEY ON THE MINI LOGO ON THE NAV SYSTEM GOES ON AND STAY THERE BUT THE NAV SYSTEM NERVER TURNS OVER I GET NO ILLUMINATOR LIGHTS IN THE DASH NOR RADIO HEATER/AC AND WINDOW TOGGLE LOCKS ETC UNIT...AND ABSOLUTLY NO POWER TO HEATER/AC UNIT INTERIOR READING LIGHTS GO ON FINE SO DOES CIG LIGHTER...IVE CHECKED EVERY FUSE AND SEEMS TO BE ALL FINE...PLZZ HELP ME!!!!

 

AFTER READING ALOT OF THREADS HERE I ATTEMPED TO DISCONNECT BATTERY TERMINALS AND STILL NO LUCK...BUT AGAIN MY MINI SEEMS TO BE ALL WORKING IN GOOD ORDER BESIDE THAT ISSE WITH THE INTERIOR ILLUMINTOR LIGHTS AND GETTING TO POWER TO AC/HEATER UNIT...I CHECKED UNDER MY SEAT AND IM ABLE TO EJECT AND RE-INSER NAV CD WITH AN ISSUE BUT I GET NOTHING ON THE SCREEN BESIDE THE MINI LOGO AGAIN PLZZZZ HELP

 

I was getting something similar and found my negative battery cable to be loose. It was an intermittent problem and the cable seemed fine, once I tightened it the problem went away. Just sharing my issue- hope it helps.

 

i checked ned cable....all tight...i wish that was the case ty again for helping

 

First, thanks for not yelling anymore. Caps Lock is not our friend.

As for your problem, how old is the battery? Is it the original one?
MINI batteries have a habit of failing after 3 or 4 years, and as they begin
to fail, they cause strange electrical gremlins to appear. If it's the OEM battery, get it to a shop and have it load tested.

 

Ancient Mariner, your funny! I like the name too

 

yea battery is good but tomm ill have it load tested...thanks

 

got new batt still same problem....

 

Have you tried swapping out the fuses, just to be sure? Sometimes the ATO-type fuses can melt down below the little window. The fuses still looks good, but...
A small box of mixed fuses is a good investment, and at least someplace to start. You can't easily pinpoint what the cause is, so the next best thing is to begin eliminating what isn't wrong. It's a painfully slow process, but without test equipment, there aren't many other options.

 

do you have sunroof? check to see if theres any water leaking form the sunroof drains into either side of the front kickpanels. the right side(pass.) has the BC1(body control module) and the left side has a big(30+ pin) connector that sends voltage to the dash components.

you may have water/corrosion ont hose components.
good luck!