Have you had to refill more than once?I had this happen too. Mine appears to be evaporating around the seals of the sensors and caps on the reservoir. Had the system pressure tested last month and inspected by a shop but they said it was all as should be. Just watching levels and filling it up as needed
No. Only filled once in about 10k miles. The link below looks pretty spot on with it being the caps. I’m going to purchase some new ones and see if that fixes that. I wonder if putting something on the threads might help temporarily to seal a little better.Have you had to refill more than once?
Well, that's somewhat understandable when Toyota's side of the "partnership" basically amounted to handing over a truckload of cash and then making a few tiny adjustments after BMW was done with everything.It's weird we have to unscrew the coolant cap to see whether the coolant is low or not (ghetto) while the oil dip stick is electronic (StarTrek). Then the brake fluid is just a standard reservoir (PepBoys)..