E500 Temp Display lights intermittent

[pmay805]

I have a 2003 E500 and sometimes the temperature display lights are dim, and then after a while they just become bright like they are suppose to be. I noticed a few days ago when I cranked up that they were dim. I reached over and turned on the radio and they immediately brightened up. What could the problem be?

 

[television]

Could this be to do with the auto light setting in you menu, try it with the auto dimming off

 

[jberks]

if the fuel gauge is ok and its just the temp gauge then I'd say the cluster is faulty. I think this is going to be an increasingly common issue. The bulbs are LEDs so not a simple fix I'm afraid.

Officially MB will say that the cluster need replacing, unnoficially I'm sure there will be people who can repair it, especially over there.

 

[whitenemesis]

I think the OP means the lights on the heater controls?