Where is the reset button on a wiper?
There are two ways to access this menu, via the trip reset button on the dashboard or via the OK button on the end of the wiper stalk. It doesn't matter which one you choose, the procedure is the same
How many times to reset a trip reset?
Press the OK button or the trip reset button 4 times, holding it in on the 4th press.
What is 13. a check?
13. a) number of days from last check
Does the BC button work on OPCOM?
A bit late late but yes have the BC button and can get odd bits up like instantaneous consumption, average consumption but that is about all, and this after activating using OPCOM.
Is the next menu hidden?
The next menu is not really that hidden, as it is documented in the owners manual - the personalized key menu.