GX TCU Issues

Wow, that sounds awful! Is it still under warranty? My old Alfa Romeo had similar issues with the automatic gearbox a few years back. Slipping, weird noises... felt like driving through treacle. And the electronic issues! Did you notice it getting worse gradually, or did it just suddenly go bonkers?

Warranty expired, unfortunately. Symptoms developed gradually over a week. Initially, just slow paddle shifter response. Progressed to slipping and noises. Your Alfa - was it definitely the control unit, or something else?

Definitely points to the control unit in my case, after much head-scratching and many visits to the mechanic. Though, honestly, with modern car computers, who really knows anymore? Have you had it properly diagnosed by a professional? Because frankly, with those symptoms, are you really going to risk further damage trying to DIY it?

Confirmed diagnosis: defective TCU. Quoted 1000€ for replacement. Thanks for the input.