Geoff Kneen

Wondering where I might find the fuse for the radiator fan on the A4 B8? I found a few posts about other vehicle versions (older) but nothing in anything throughout the forum on this model. My rad fan isn't working and subsequently the car is overheating. Got something booked for next week to have someone take a look but would like to check the fuse in the meantime.

Any info would be appreciated!

Thanks - Geoff

SMac770

What year? The wiring diagram has a tendency to change year by year.

Geoff Kneen

Sorry, 2012 A4...

SMac770

I knew the topic seemed familiar, https://www.audiworld.com/forums/a4-...odule-2930833/

There's a number of fuses in the chain, to power the fans as well as the control signal.
panel A fuse 2 110A
panel B fuse 11 (this is for the control signal from the ECM to the fan controller)
battery jump terminal fuse 1 (and 2 maybe) 40A or 60A (this is for the power to the fans)

So panel A is at the battery, inside the plastic housing on the left battery terminal connection. I figure if that fuse was blown, a lot more about your car would not be working.
Panel B is under the plenum cover (that plastic piece that goes across under the hood at the windshield, where the windshield washer fluid is) on the driver side, fuse 11 should be third from the left end of the row of small fuses.
And the battery jump terminal is also under the plenum cover, but in the middle of the car. Under the plastic cover, the "fuses" look like their just large bars from the diagram. Fuses 1 and 2 are the two on the left side (passenger side) of the box. I'm pretty sure this space is always hot, so don't f up in there.