Audi Q5 Washer System Failure: Pump vs Clog Issue

Had almost the exact same issue on my Audi Q7 2010 2.0 TFSI about a year ago. As someone with low experience working on cars, I initially thought it was just a clog in the system. After basic troubleshooting failed, took it to a workshop where they diagnosed a faulty cable connection between the washer pump and relay. The repair involved replacing the damaged wiring harness and checking all related connections. Total cost was 165 Euro including parts and labor. The symptoms matched yours exactly, no pump sound, complete system failure, and warning lights for the headlight cleaning system. The workshop confirmed this is a somewhat common issue on these models. To help provide more specific guidance: Can you hear any clicking sound when activating the washer? Have you checked the fuse for the washer system? Did this happen suddenly or gradually? Does your model have LED or Xenon headlights with washers? Would be helpful to know these details to better understand if your issue matches what I experienced with mine.

After my latest service at 135711 KM, I wanted to report back that checking the fuse was a good suggestion. The washer LED fault warning disappeared after replacing a blown 15A fuse in the main fuse box. No pump sound initially made me think it was a bigger system malfunction, but the simple fuse replacement fixed both the windshield and headlight cleaning functions completely. Worth double checking all fuses before assuming pump failure. Total repair cost was only 3 Euro for the new fuse.

Glad the fuse replacement solved your issue! That matches my experience exactly, these seemingly major malfunctions often have simple fixes. After dealing with my similar washer system problem, I keep spare fuses handy since a blown fuse can affect both the windshield washer and headlight cleaning systems simultaneously. Just a tip from my maintenance routine: I regularly do a quick cleaning of the washer nozzles and check for any clog that could cause extra strain on the system. This preventive approach helps avoid future issues and protects the fuse from overloading. If the system starts acting up again, checking fuses should always be the first troubleshooting step. Much better than spending unnecessary money on pump replacements or complex repairs like I initially feared with my Q7. For reference, the 15A fuse you replaced is the standard rating for these washer systems. Good to keep that number in mind for future maintenance.

Thanks for the helpful advice. Just wanted to close this thread by confirming the washer system continues working perfectly after the simple fuse replacement. The fault warnings for both the windshield washer and headlight cleaning system have not returned. Good learning experience, what seemed like a major malfunction with the pump ended up being resolved with a basic 3 Euro fuse. I will definitely check fuses first before assuming more serious issues in the future. I have also started doing regular cleaning of the washer nozzles to prevent any potential clog issues that could strain the system. For anyone searching with similar symptoms, no pump sound, LED warning lights, and complete washer system failure, make sure to check that 15A fuse before pursuing more expensive repairs.