Wiper sizes

[ArmedAviator]

What are the correct wiper sizes for a 2012 M37?

I bought two RainX wipers a few days ago and finally took the car out to work on the highway this morning. I heard an unreasonable amount of noise and when I parked I took a look at the passenger side wiper where the sound was coming from.

It appears that the last 2 inches or so of the pax side wiper is off of the glass and causes it to hit the window at speed as it vibrates.

I did notice that the pax wiper that AutoZone recommended was larger than the one already on the car. IIRC the new ones are 26" and 19". The previous wipers were 26" and approximately 14".

[Larz]

The correct sizes are 26" for driver side and 19" for passenger side. I'm not sure what you mean by off the glass? Do you mean the wiper is sticking out beyond the edge of the windscreen?

[ArmedAviator]

No it is not sticking out too far. The last 2" or so of wiper is not touching the windshield as if it can't bend enough to the windshield contour. I've never seen that happen before and not sure if it's just a problem with these types of wipers or what since the size is correct.

[ArmedAviator]

And I should specify that this occurs when the wipers are in the parked position.

[Larz]

That sounds like an issue with that brand. I use Rain-X on all of my exterior glass and it works brilliantly, but for wipers, I only use Bosch ICON.