I always put it in position 1,so as you said i activated rain sesnor. But it always wipe with same speed no matter what,about 7 seconds or so interval. rotary speed usually in II. So how to test out a rain sensor????

Just to confirm but are you saying even when you're at highway speed and it's raining cats and dogs it doesn't wipe fast enough? I just want to make sure you understand its vehicle SPEED dependent too. The faster you drive your X the faster the wipe.

can't say it,didn't try. the only thing i tried is to put a lot of water unexpectedly and he ignored it :-( but car was in park

when was raining hard i had wipers on fast in position 3 all the time

That's what I was trying to tell you before. You can't really test its maximum wipe speed when the vehicle is stopped. Next time its raining get on the highway and turn the dial all the way.

I don't know the max speed for the sensor wipe but I'm pretty sure its faster than 7 seconds.

lmfao there's a manual!?!? :rofl:

Thanks,will try

Be nice. English might not be this person's first language or he/she doesn't quite understand the manual. :stickpoke

I've read plenty of instruction manuals where I could not make heads or tails of some things - I like pictures better! :D :rofl:

Thats right. English is my 2nd language,and manual is in weird explanation sometimes. Plus its my first Bimmer

From my experience when it is raining and the rain-sensing is turned on and the car is parked it won't go but every 10 seconds or so. Can't really say I haven't timed it.

It typical Oregon weather I leave it on rotary dial on 1 or 2 for city driving. Once I hit the freeway its typically 3-4.

However, my point is, I like to ease drop when I am at the dealership of what things people are complaining to their SA about. One of them was complaining about their rain-sensing wipers weren't working properly. The SA told them they had a device that can test the wipers, and the wiper blade position to see their effectiveness and then they can make any tweaks necessary.

So, can somebody confirm or deny such a testing device exists? :popcorn: Or was the SA just blowing smoke? I figured it was smoke.:stickpoke But if there is an issue with your wipers you may want to stop by the dealership and see if they can fix it.

EDIT: After reading this Sobi6111 there is really no useful information in there for you, so you can probably forget it!;)