RED G8R

All 3 of my cars have rain sensors and none are perfect. In general they work well but at times I wish it would wipe more (even set to max sensitivity) especially in very light rain or fog. Having said that, It's still better than intermittent wipers.

Ryan1524

Mine seems to agree with my needs.

sid77

Nothing better than when a big juicy insect sets off your wipers on the highway.....

mart242

it sometimes does this? I guess the system is far from perfect.

Dark_Mist

If you leave the stalk at the 2nd lowest setting the auto sensing wipers don't come on. When it's raining if you bypass the next highest setting (it would be intermittant on a non auto wiper sensing car) to the 4 th lowest the wipers come on and stay on.

What setting in the MMI do you have your auto headlights set on? The auto wipers use the same sensor to determine when to come on. If you have the headlights to not come on till it gets quite dark, your wipers don't come on until your screen is very wet. I have mine set on medium and have no complaints.

Toecutter

If I don't use the "auto" headlight setting then what happens to the wipers?

sid77

My 08 TT did it constantly. My A5 not so much, however it still happens.

Insects in the summer are really bad where i live. After an hour on the highway, there are so many bug hits that the front of the car looks like its growing fur...

BMWBig6

Are you kidding me? Is this mentioned in the owner's manual? I read that thing cover to cover (months ago, for sure), but don't remember seeing anything about the wiper's initial sensitivity being linked to the Auto-headlights' Early/Medium/Late setting. That would be kind of cool and ridiculous at the same time (to me), akin to linking a ceiling fan's light switch with it's fan speed selection (which has no obvious relationship).

A4DK

Its the same sensor, but not sure if the two functions are linked. But i have mine as medium too and not complaints.

Mobilehavoc

how do you all know it's the same sensor? AFAIK the rain sensor is part of the windshield mount on the windshield (the dark circle,etc.). I know this because when I was thinking of replacing my windshield, the glass guy told me to make sure I specifically ask for the windshield with rain sensor (i.e. there's a windshield with and one without). The sensor for the headlights is definitely not on the windshield and I find it hard to believe they use the same sensor. I think someone is just making this up. Last time I read, rain sensors use infared light to detect drops of water, etc. how the hell could this be used for headlights?!?