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Does anybody else hate their rain sensing wipers?

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Old 05-26-2009, 04:43 PM   #1
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Default Does anybody else hate their rain sensing wipers?

This is the first time I've had a vehicle with them, and I'd give anything to get rid of them. On any setting it seems like they only wipe when they feel like it. It goes from slow to slower to slowest. Just tonight on my way home, I was driving behind someone (road all wet - misting on windshield), and they decided to shut off!!! Maybe it's a bad sensor, but if this is all the better they work, I sure want to get rid of them!!!

I'll ask if there's anything that can be done at the 5k checkup.

Kerry
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Old 05-26-2009, 05:10 PM   #2
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I think yours need to be adjusted. Because they can keep up fine for me in the 2nd lowest setting, and pretty much keep sweeping @ max speed at anything higher.

I leave mine on the lowest frequency (or sensitivity?) setting because the wipers will turn on for the smallest rain drop and drag across an otherwise dry windshield (smearing bugs and scratching the glass). However, when it's actually raining, I find the 2nd lowest setting more appropriate, so my complaint is that I want an Early/Medium/Late adjustment, like the Auto Headlights have in MMI.
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Old 05-26-2009, 05:21 PM   #3
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Mine frustrate me too. At the highest frequency setting they still don't wipe frequently enough. I'd rather be in control of the interval rather than have the sensor decide for me. As a result I find myself pulling on the stalk for a sec to activate the squirt/two wipe function too much. I was going to inquire at the 5K checkup if they could either adjust the sensor or deactivate it. Maybe I can place a piece of tape over the sensor, or squash a big bug over it?

The rain sensing feature did lead to some surprise hilarity though. I had left it on rain sensing mode during a dry day. Since it was not raining, the wipers did not move. However, when I was at the gas station and ran the squeegee over the glass the wipers came on and startled me. "Hey, what the...!!!"
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Old 05-26-2009, 06:47 PM   #4
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on my wife's volvo, I was able to disable the auto wipers by popping off the cover behind the rear view mirror and disconnecting a plug. Then the sensitivity control reverts back to a time lapse control, it's perfect and I control it.

I had the exact same problem with the volvo, could never get it to sweep when I wanted it to sweep.

Maybe there's a way to disarm the audi one?

JF
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Old 05-27-2009, 04:15 AM   #5
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Quote:
Originally Posted by kerrydel1 View Post
This is the first time I've had a vehicle with them, and I'd give anything to get rid of them. On any setting it seems like they only wipe when they feel like it. It goes from slow to slower to slowest. Just tonight on my way home, I was driving behind someone (road all wet - misting on windshield), and they decided to shut off!!! Maybe it's a bad sensor, but if this is all the better they work, I sure want to get rid of them!!!

I'll ask if there's anything that can be done at the 5k checkup.

Kerry
Have them check the sensor. Could be something wrong. I find mine to be surprisingly convenient. Maybe there's just something wrong that can be adjusted. Definitely wouldn't hurt to have them check it @the 5K.
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Old 05-27-2009, 05:14 AM   #6
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Really? I have them on my B7 A4 and they work brilliantly. Granted I occasionally have to adjust the intermitent speed but other than that they are spot on.
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Old 05-27-2009, 06:35 AM   #7
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Hmm... I'm not sure what intermittent setting I have them on, but I find mind to be very convenient, and seem to keep up with the water just fine.
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Old 05-27-2009, 07:53 AM   #8
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Of course "they work fine" is based upon a subjective evaluation of what "fine" means. Some people can tolerate having more raindrops on the windshield before feeling as if they need the wiper to do its thing. Chances are all of our sensors are functioning exactly the same, but we have different personal thresholds as to when we want a windshield wipe.
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Old 05-27-2009, 07:58 AM   #9
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I thought that this feature was going to be useless and a PITA but it turns out that it's pretty nice. I wouldn't pay for that though.
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Old 05-27-2009, 10:35 AM   #10
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I havent had any real issues with it. Once in a while they wipe due to a dusty windshield, but otherwise i like them.
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Old 05-28-2009, 12:01 PM   #11
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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.
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Old 05-28-2009, 02:25 PM   #12
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Mine seems to agree with my needs.
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Old 05-28-2009, 06:31 PM   #13
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Nothing better than when a big juicy insect sets off your wipers on the highway.....
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Old 05-29-2009, 05:06 AM   #14
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Nothing better than when a big juicy insect sets off your wipers on the highway.....
it sometimes does this? I guess the system is far from perfect.
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Old 05-29-2009, 07:47 AM   #15
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Default you can always turn auto wipers off

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.
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Old 05-29-2009, 08:28 AM   #16
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Originally Posted by Dark_Mist
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.
If I don't use the "auto" headlight setting then what happens to the wipers?
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Old 05-29-2009, 08:31 AM   #17
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it sometimes does this? I guess the system is far from perfect.
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...
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Old 05-29-2009, 08:53 AM   #18
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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.
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).
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Old 05-29-2009, 09:04 AM   #19
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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).
Its the same sensor, but not sure if the two functions are linked. But i have mine as medium too and not complaints.
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Old 05-29-2009, 09:42 AM   #20
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Its the same sensor, but not sure if the two functions are linked. But i have mine as medium too and not complaints.
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?!?
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