Dead Nav & Audio System in Land Rover Discovery Baffles Owner

Hey there! I had a similar issue with my '08 LR3 (V8) last year. Started with both systems dying completely, just like yours. Initially thought it was the navigation data too, but when I took it to the garage, they found it was actually a loose cable connection behind the head unit, plus some corrosion on the main power terminals. The mechanic had to pull out the entire head unit, clean the connections, and secure them properly. While not a major mechanical issue, it needed someone who knows Land Rovers well. The job took about 2 hours, and now everything's working perfectly fine. If your symptoms match mine (complete system failure, no response at all), I'd suggest checking those connections first before replacing any components. It's worth getting a second opinion from a Land Rover specialist if you're not happy with your current mechanic. Hope this helps!

Wow, thanks for sharing your experience! That sounds exactly like what I'm dealing with. Really helpful to know it might just be a connection issue rather than something more serious. Would you mind telling me roughly how much you ended up paying for the repair? Also, has everything stayed working properly since then, or have you had any other electrical gremlins pop up?

Hey again! I'm happy to report that after getting it fixed, my LR3's nav and audio systems have been working flawlessly! The total bill came to 155.00 € to sort out that faulty cable connection, and honestly, it was money well spent. The mechanic diagnosed the "Navigation system image data invalid" error and traced it back to those corroded connections we talked about earlier. Haven't had a single electrical gremlin since the repair, touch wood! The head unit fires up perfectly every time, and the navigation is crystal clear. It's such a relief when you find a good mechanic who actually knows what they're doing with these cars. My advice would be to go ahead and get those connections checked out. The symptoms you're describing are identical to what I experienced, and it's likely a straightforward fix. Much better than worrying about having to replace the entire system! Let me know how you get on with it!

Thanks so much for following up! After your feedback, I bit the bullet and took it to a different mechanic who specializes in these vehicles. You won't believe it, it was exactly the same issue! Found corroded connections and a loose cable behind the head unit. The bill came to just under 200 for parts and labor, which was such a relief compared to what I was imagining. They had it fixed in about two hours, and both the nav and audio are working perfectly now. No more black screens or system crashes! Really glad I asked here before spending a fortune on unnecessary repairs. Sometimes it really does pay to get a second opinion. The new mechanic even showed me what was wrong and explained everything clearly, such a different experience from my last repair shop. Thanks again for pointing me in the right direction. It's been about two weeks now, and everything's still working great. What a relief to have it sorted without breaking the bank!