Yes, OEM from our local dealership. We have a very reputable German auto shop here and I finally took it to them. They are the folks that suggest Dorman brand as they appear to hold up much better. Last year we hit 125 outside and so I'm sure the inside of the door was even hotter. It seems that the combination of heat and low humidity is super rough on plastics. Even Sunbrella fabrics which are supposed to be nearly bulletproof in the sun tend to break down in 5 years or so. It is what it is.

We all know that the doors on these are the bane of our existence. LOL. As I said, I absolutely love this vehicle so I put up with it's "quirks".