BigGeorge

G'day guys, I have just installed the B4 aux gauges into my B4 quattro. Everything went smoothly but the illumination is very dim....I'm talking barely lit! I stuck a multimeter on the globe connection and I'm only getting 4 volts. I traced the 12V illumination feed on the aux gauges PCB and there's a resistor on the PCB that cuts the voltage from 12v to around 4V before the power eaches the globes. Is this normal? should I:
-replace resistor?
-bypass resistor so globes get full 12V?
-put in higher wattage globes?

Any ideas on how to solve this?

George


Cheers
George

quattro.pilot

try higher wattage bulbs first.

Brdman*

is the cluster dimmer turned to max?

BigGeorge

Thanks Brdman, I didn't notice any dimmer control on the aux gauges. Is this on the PCB on the back of the cluster?

George

Brdman*

no, it's one of the black stalks the main instrument cluster.

BigGeorge

I'll look for the dimmer and see how I go. Thanks.

BigGeorge

Checked dimmer, was at about 95% already. Aux gauges need to be about twice as bright as they currently are. I'll hunt down some 2 watt globes, but I'm still bugged that I'm only getting 4V at each globe.

George

Brdman*

try bypasssing the relay thing

BigGeorge

..thanks for advice, George.