hi guys. Im working on a 72 mercedes 250 (vin= 011)
I have no dash lights. Took a test light,i have a power input from the headlight switch to the cluster,but no cluster lights or dash lights.

HELP!!!!! im frazzled! already checked the fuses under the hood with a test light,all ok! DOes anybody have a good diagram that actually shows the cluster with pin numbers? thanks!
mike

Is that a model whith a rheostat to control brightness of the lights ?

on some models the trip odometer switch controls the brightness of the dash lights. turn it to the right and see. it's worth a try.

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1989 300TE

taker22 makes a good point. If it has a second knob toward's the left, then that would be the dimmer. I've seen some member's post that if you slightly "bind" the dimmer a number of time's while turning the light's might start functioning. Obviously, this last, assume's you have a dimmer. My 69 220D uses a separate control for the trip odometer and dash light dimmer, but follow taker22's advice if this is not the case.