Rain sensor

[diyanich]

Hi guys,
I use INPA and can't delete a fault code in Rain Sensor module.
I lost rain sensing do to the bubbles in the silicon which were left by a guy that replaced my windshield like 3 1/2 years ago.
I lost rain sensing about a year and a half ago.
I see the same thing as the OP from the thread here: Rain Sensor (AIC) initialisation problem - The Unofficial BMW M5 Messageboard (m5board.com)

I am wondering if anybody had a same problem and what the cure was,if there was any.

Thanks a lot

[patrickkc]

lemme know if you can recode using INPA. I had the exact same problem and replaced the purple sensor, but guess I didn't install properly and still have a few bubbles but a lot less than before. Sensors still don't work, so I think it could be my Rain sensor module that is either broken or need recoding.

[diyanich]

I reinstalled the sensor myself.
There are no bubbles now.

Originally Posted by patrickkc

lemme know if you can recode using INPA. I had the exact same problem and replaced the purple sensor, but guess I didn't install properly and still have a few bubbles but a lot less than before. Sensors still don't work, so I think it could be my Rain sensor module that is either broken or need recoding.

[TiAgX5]

I've unplugged that sensor on every BMW I have owned that has had auto-wiper function. This allows the stalk intermittent settings to function as in a non-auto wiper BMW. The auto wiper function is set WAY too sensitive IMHO.

[diyanich]

At this moment I get an intermittent wiper setup,but i can't adjust its speed in any way..PITA

Originally Posted by TiAgX5

I've unplugged that sensor on every BMW I have owned that has had auto-wiper function. This allows the stalk intermittent settings to function as in a non-auto wiper BMW. The auto wiper function is set WAY too sensitive IMHO.

[TiAgX5]

Originally Posted by diyanich

At this moment I get an intermittent wiper setup,but i can't adjust its speed in any way..PITA

Might be a bad sensor.

[HPIA4v2]

I thought disconnecting the sensor (center of windshield) will get you spee-sensing wiper but no intermitent.
My OE glass develops buble and at thi spoint I am not sure if intermittent of speed-sending is better than the other.

[TiAgX5]

Originally Posted by HPIA4v2

I thought disconnecting the sensor (center of windshield) will get you spee-sensing wiper but no intermitent.
My OE glass develops buble and at thi spoint I am not sure if intermittent of speed-sending is better than the other.

Disconnected gives you intermittent and speed-sensing. Stationary, positions 1 thru 4 of the stalk thumbwheel will result in wipe delays of 25, 15, 10 and 5 seconds, at 85 mph the delay time is 15, 10, 5 and 2 secs.

[Bargain Bucket]

Cool. So how do you disconnect it (i.e. where is the connector and how do you get to it)?

[rogerkiu]

The best solution is to replace the whole windshield, this is what BMW service center's solution. However, you can buy the BMW specific glue to re-attach the sensor onto the windshield, but it will be really difficult to do it without letting air goes into the area as long as the windshield is not off.