A Question for the SWB Dash and Electrical Experts Out There ....

[911L Guy]

Which dash knobs should light up on my US-delivered 1968 911 L? Right now when I'm running at night with my headlights on, only my fog light knob illuminates when I turn them on. While all of my instrument dials are lit properly, I don't have any illumination for the Headlight knob, Hazards or the Blower when I engage them (pull them out). I thought that all of the dash knobs had the light tubes in them and were wired for bulbs, but mine are all dark except for the Fogs.

Before I go digging around behind the dash, which knobs SHOULD light up? Thanks for the help!

[jim amato]

on 65-67 swb cars none light up, only the hazard stem flashes while active

[911L Guy]

on 65-67 swb cars none light up, only the hazard stem flashes while active

Thanks Jim. I found this previous Early 911S Registry thread on this topic that seems to show differences in the SWB model years 1965-'67 versus 1968, with the differences really only being the addition of soft rubber knob surrounds and bakelite tops for US models. But this seems to imply that even the 65's-67's had lit knobs so the plot thickens as I'm hoping to get some clarity from this crew: https://www.early911sregistry.org/fo...7-vs-68)/page3

[jim amato]

OOPS! My bad! The optional fog lights and auxiliary heater were lit on 65-67 cars, My cars do not have these options, thanks for clarification

[Cliff]

This may be of some help. Dr Brett Johnson’s 911 & 912 Porsche , Authenticity book , second edition. All central knobs above the radio have illumination except the rare optional fan blower and I believe it too was illuminated. cliff

[Jim Breazeale]

Thanks Jim. I found this previous Early 911S Registry thread on this topic that seems to show differences in the SWB model years 1965-'67 versus 1968, with the differences really only being the addition of soft rubber knob surrounds and bakelite tops for US models. But this seems to imply that even the 65's-67's had lit knobs so the plot thickens as I'm hoping to get some clarity from this crew: https://www.early911sregistry.org/fo...7-vs-68)/page3

All 3 knobs above the radio light up, including the fan switch knob. The headlight switch knob does not. The lighted knobs have a slightly larger threaded shaft that they screw onto.

Jim

[911L Guy]

All 3 knobs above the radio light up, including the fan switch knob. The headlight switch knob does not. The lighted knobs have a slightly larger threaded shaft that they screw onto.

Jim

Super, thanks Jim, that’s exactly the info I was looking for. Now I know what knobs to work on for wiring and bulbs!