Power windows does not work, but sunroof does

[w00tw00t]

Hi,

E36 320i 1992, 4 door. The two back windows are manuals, front are power windows.

Sunroof works, front power windows does not. I changed all fuses but that didn't solve the issue. I found a DYI-thread about changing the comfort relay, but that states that both power windows and sunroof should be dead, any idea where to look?

[ultimatetester]

Nice to see the 320 owner group growing . So first thing to check are the switches, do they light up still? If yes then you should check if the motors are getting power and/or if they work when you apply power to them directly, a simple 9v battery will be sufficient to test the motors.

[flyfishvt]

The comfort relay sends separate power to the sunroof and windows. It's entirely possible for the sunroof to work and the windows not work. Swap out the comfort relay or repair it. 99% of the time when the comfort relay goes bad it's because of a bad solder joint that is easy to repair.