>>>>
>>>> The 156 computer is nowhere near as clever as that.
>>>
>>> Spoilsport
>>
>> It won't work on mine though, so I agree, it's not a clever computer!
>
> You have to hold down the - and + buttons together for quite a while
> before it says 'reset'. You have the newer interior version, right? With
> the silver facings and the computer in the middle, above the radio?

That's the one. I've tried holding the buttons in for over a minute and
eventually
the display reverts back to the INFO screen.

By the way, what temp should show on the gauge?
The handbook says the needle should be midway or vertical which
corresponds to 90º, mine seems to be about 75º.

TonyB