VW Taos Key System Failures After Garage Service

A similar issue occurred on my 2019 VW Tiguan. The automotive antenna connection was indeed the root cause, affecting multiple systems since modern vehicles use integrated antenna modules for various functions including keyless entry and immobilizer signals. The symptoms match exactly, unreliable central locking, key fob issues, and persistent warning lights. After proper diagnosis, the problem was traced to corroded antenna mount connections in the rear bumper area where water had seeped in. Signal interference from the damaged components was affecting all wireless communications. The fm antenna assembly required complete replacement, including the wiring harness and connectors. This is not a quick fix as it involves partial bumper removal to access the antenna connection points. The repair also included resealing the antenna housing to prevent future moisture damage. For your Taos, suggest requesting a specific check of the antenna wiring connections and ground points. The antenna replacement procedure is similar across recent VW models. This is a serious issue that can cascade into other electrical problems if left unaddressed, potentially affecting vehicle security and starting systems. Worth noting that poor repairs or disturbed connections during previous service work can trigger these symptoms. Having the antenna diagnostic performed by a VW specialist who understands the integrated nature of these systems is recommended.

Thanks for sharing your experience with the antenna repair. Your case sounds identical to mine, same radio signal and central locking issues. Got it fixed last week and it seems to be working perfectly now. Do you remember roughly what the antenna replacement cost you? The dealer quoted me quite high but I want to compare. Also curious if you had any other electrical gremlins pop up since getting it sorted? My VW Taos is back to normal but keeping an eye on things since these car radio antenna problems can sometimes indicate other underlying issues.

Following up on your question about costs, my antenna repair ended up being much more reasonable than initially quoted. The final bill was 95€ for fixing the faulty cable connection in the rear bumper antenna assembly. Since having the car radio antenna issue resolved, everything has worked flawlessly. No more electrical problems, central locking works perfectly, and the radio signal is crystal clear. The fix completely resolved those annoying warning lights too. The key was proper diagnosis of the antenna mount and connection points. A competent mechanic should spot these antenna repair issues quickly since they are relatively common on our VW models. The symptoms, from key fob problems to radio interference, typically clear up immediately once the antenna connections are properly restored. Keep in mind that regular inspection of the antenna seals can prevent future issues, especially around the bumper mount area where moisture tends to collect. But you should be good now that it has been properly repaired.

Going to the mechanic finally resolved my antenna issues. Found a different VW specialist who immediately spotted the problem, a damaged vehicle antenna connection causing all those weird electrical gremlins. The repair took about 2 hours and cost 280€ total, including parts and labor. They had to partially remove the rear bumper to access and replace the antenna assembly. The mechanic showed me where water had gotten in and corroded the connections, causing all that signal interference. Everything works perfectly now, central locking, keyless start, and no more warning lights. The fm antenna delivers crystal clear radio reception too. Really glad I got a second opinion instead of going back to the dealer who missed this during the last service. For anyone else dealing with similar issues, definitely worth checking the antenna connections first before assuming worse problems. These integrated antenna systems are crucial for modern car electronics to work properly.