W124 outside temp gauge OTG - blank display

[ap999]

Since buying my w124, the OTG has always had a blank display.

It has the OTG option, and as the front sensor in the bumper had been mangled by the previous owner, I assumed a new sensor would fix it.

A new sensor was ordered from Mercedes and fitted this morning, but still the display is blank...

Any ideas what I need to check next? Is the display itself faulty, and if so , how do I confirm it is broken?

Any help would be appreciated.

Thanks

 

[jaymanek]

yes its most likely the display or the power to it.

 

[bolide]

AFAIK there is only the sensor and the gauge - no other parts

Nick Froome
the independent Mercedes Estate specialists