Originally Posted by dak503
hi, i have a 2013 passat tdi. the first thing i did when i got my rosstech cable was to up my headlight voltage to 13 volts. i also installed orsam 65w bulbs. now i am installing hids. and i was told to return my voltage to stock. i dont recall if original voltage was 12.6 v or 12.8 v. TIA for any help you can give.
May depend on the HID you are using but for my car they would not come on and stay on with the stock setup due to the low voltage and bulb saver feature. Even with mine set on maximum voltage sometimes after start with switch in auto mode they will go out and require the switch to be turned off and back on. I think cranking lowers the voltage too much for them momentarily
12' Passat SE TDI; Cr 170 Turbo, Stage 3.5 malone, dpf, egr, muffler delete, traction control delete button, Sachs SRE Performance clutch with DMF, KONI Sport suspension, H&R lowering springs, Fluidampr by INA engineering, mini train horns, HID 10K projector headlights with LED DRL, painted brake calipers, ID parts winter front, frost heater, 19" Enkei Raijin