I'd personally incorporate nearly a couple of pint or so of distilled h2o.. any more and I might get some coolant to mix. if it goes off again, carry it towards the seller. its most likely just evap lack of the drinking water portion of the coolant combine. glycol doesnt https://typesofautomotivehoseclam37153.estate-blog.com/26982759/what-does-types-of-coolant-for-bmw-335i-mean