Seeking Advice on Non-Functional Navigation System in 2018 Fiat 500

Hey there, totally get you on this one. I have a 2018 Fiat 500, and I dealt with something pretty similar not too long back. Indeed, the culprits were the CAN BUS and MOST bus system that messed up causing infotainment system trouble. At the local garage, they had to do quite a bit of work to fix them. It turned out the communication between control devices was disrupted due to some wiring issues, likely from wear and tear. Their first step was to run a thorough diagnostic to pinpoint the exact problem. Once that was sorted, they ended up repairing the damaged wiring and replacing a few faulty network components. It's not a minor issue since communication bus systems are like the nervous system of your car, but don't sweat too much. A good mechanic who knows their thing about network systems in vehicles should sort you out. Take it to the garage and let's hope for the best. Keep us posted!

Hey there! Thanks so much for chiming in and sharing your experience with your 500. It sounds like you really hit the nail on the head. The CAN BUS and MOST bus system issues sound suspiciously like what might be going on with my 500's nav system. By the way, do you recall roughly how much the repair set you back? I know it's gonna be a decent chunk of change, but I'm hoping it won't break the bank. Also, has anything cropped up since getting it fixed? Any more unexpected issues? Thanks again for your help!

Hey! Glad to help out. With regards to the cost, the repair for the CAN BUS and MOST bus damage came to a round figure of about 235€ at my local garage. Not exactly pocket change, but definitely worth it considering the complexity of the issue. I must say, since they fixed the damaged stuff, there have been no more confusing message errors between control devices. It's been running smoothly, like a dream - touch wood! So, a good mechanic should straighten it all out and leave it running as it should. Totally recommend getting it checked out soon. Let us know how it goes. Cheers!

Your help here is nothing short of a lifesaver! I appreciate the details; the pricing sounds pretty reasonable considering the intricate nature of the problem. I'm feeling a lot more confident about getting it fixed now. I'll definitely take my 500 to a garage soon and hope to find a good mechanic who can handle this CAN BUS and MOST bus stuff as smoothly as your individual did. The fact that your 500 has been navigation-error-free ever since is massively reassuring! Once I get it checked and sorted, I'll be sure to update here, so anyone else troubled by the same issue can benefit. Thanks again for all the help!