Quote:
Originally Posted by andrewwynn
Having just replaced thermostat can affirm it's very difficult to tell these hose clips are locked in. I like to try to leave the clip pushed in to hear the click when it locks but often that won't happen. So definitely always try to remove the hose. Several times the hose has popped off and I had to reconnect it.
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I've taken to applying a very minute amount of dielectric grease on the o-ring before sliding it on. Reduces the friction and in doing so you can definitely get a feel for when it clicks into place.
I started doing this while keeping the kids older, higher mileage BMWs on the road to reduce brittle plastic breakage when doing their repairs.