Rev counter and speedo instrument lights not working

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Peterapollo11

New Member
Joined
Mar 7, 2021
Messages
1
Location
London
Car
SL350 r230
Hi everyone,
Yet another electrical problem with my 2012 R230 SL350 UK model.
Some but not all of the white outer rings that illuminate the rev counter and speedo randomly don't work then sometimes they do. Please see photos attached. The darker shade areas are where the lights are off. The next time I start the car they may come on then go off again.
Has anyone had this happen? Are they the standard dashboard type bulbs or is it part of the electrical unit integrated inside the circuit board.

Thank you.
 

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