R129 1990 500SL Roll bar problem

[Langer]

Hi All,
We recently had our 500SL services by a local mechanic, who accidently made the mistake of starting the car with the looms for the roll bar and roof disconnected.

As a result of that, when reconnected, the rollbar automatically went into the upright position and now the roof will not function, nor the controls for the roll bar work.

I have tried holding down the roll bar batton for 10 seconds as suggested by other people to reset it, however that did not work. The indicator lights on the rollbar switch also do not light up.

We have checked over just about everything we can think of, removing the battery terminal to try and reset it, holding down the button, checking al fuses etc.

It is around a 1200km round trip to the nearest mercedes dealer, so I would rather fix the problem myself rather than drive 1200km for what could be a 2min quick fix.

Any suggestions?

Kind regards
Simon