Quote:
Originally Posted by BimmerM3inGA
I have seen some very strange instrument cluster behavior when the battery is very weak. I also had an '06 and the battery was totally dead when I bought it. Even after charging, I would get strange random messages (in German) and other general weirdness. But in that case, a fresh battery cured it 100%
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Quack quack says the duck.
It's an easy enough test to replace the battery. It could also be the alternator- in whole or in part. I've replaced two in two different E53s after instrument cluster oddities.
I am curious to know if the German error is persistent and if you've tried the lock to lock 'fix'. Stuff like that is cool if it works. It does kinda make me feel gullible when it doesn't.
