Is there a way to test whether the coolant reservoir cap is working properly? I think mine failed and caused a coolant leak (I can't find any other possible source of the leak). I have a 98 SL2 with a pressurized reservoir. I replaced the cap two years ago. Even then, I wasn't quite sure it was the right thing to do (apparently it was, as I didn't have any more problems...until now).
- posted
20 years ago