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Old 12-10-2012, 01:33 PM
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DSXMachina DSXMachina is offline
Bimmerdex 7.4!
Location: New Hampshire
Join Date: Dec 2007
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Mein Auto: 335i E92 TiAg 6MT ED
Originally Posted by Nordic_Kat View Post
Interesting. I just popped outside and looked at the contact angle of the blades with the glass. It appears the driver's side is contacting at someplace around 80-85 degrees and the passenger side is contacting at about 100 degrees. In other words, neither look right and they aren't consistent with each other. No wonder the chatter happens both directions.

Is there any harm at this point in trying to 'straighten' them out?
No harm. You'll be bending the arm, near where it attaches to the blade, in a rotational direction. You'll want to wrap the arm in something to protect it from the tool you use. We'd use a Channel-Lock, Vise Grip or pliers. A layer of leather protects well, so does an old credit card.

Park the wipers in an upright direction by turning the ignition off while the wipers are on. Grab ahold of the arm as far from the base as you can, and over rotate by 15 degrees or so because there'll be a little spring to them. Stop when you find that the blade is at 90.
Don't pull the wipers any further off the glass than you have to.
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