windshield wiper fluid

[1stE53]

Originally Posted by X5 Meister

I only use the BMW stuff as well. And I was always concerned that boosters like from P21S or Wurth would break down AquaPel faster.

What is the AquaPel?
I wouldn't be surprised it the BMW stuff is P21s. They make a few things that Mercedes just stamps their own label on. The BMW shampoo smells just like the P21s stuff as well, has the exact same consistency too. They claim to be the supplier of these types of products for multiple German car makers. I am using 4 of their different products and have had great luck with them so far. Its only been a year since I discovered them though.