Hello all,

I have a problem with an Audi A4 2003 model.

For no apparent reason whether the car is driving or if it's sitting locked in the driveway the hazard lights come on erratically.

I've done my research and a few people with similar issues said it may be related to either the hazard switch in the centre of the dash or the Comfort Control Module under the passenger floor.

I sourced a second-hand hazard switch and swapped out the original.
Still had hazards coming on randomly.

I then lifted the passenger carpet & there was no signs of any moisture.
I opened the CCU module & again no signs of moisture so I don't think this is the issue.

The radio was not working on the car so I pulled the unit & found a blown fuse (7.5 amp) in the stereo. I've replaced this and it's now working again.
Maybe this is related to the issues I'm seeing but replacing the fuse still did not sort out the problem.

If anyone has any ideas or has had a similar problem I'd love to hear how you sorted it.

Currently the car is sitting up with the battery disconnected.
I'm in no major rush to get this sorted as I don't use the car much but I really want to get to the bottom of the issue.

Thanks in advance for any advice given.