QX Hybrid Transmission Woes: Need Reliable Mechanic ASAP

I had a similar issue with my 2018 Infiniti Q50 Hybrid last year. The symptoms you're describing sound exactly like what I experienced transmission slipping and those unpleasant grinding noises. Initially thought it was the sensor too, but when I took it to the dealership, they diagnosed it as critically low transmission fluid level. The technician showed me that the fluid was not just low but had also degraded significantly. In my case, there was a small leak from one of the transmission cooler lines that had been slowly draining the fluid. It was pretty serious since running low on transmission fluid can cause permanent damage if not fixed quickly. They had to replace the cooler line and do a complete transmission fluid flush and refill. I'd strongly recommend getting this checked out at the dealership rather than a regular mechanic, especially since it's a hybrid system. These transmissions are pretty complex and need specialized knowledge. My car's been running smooth as silk since the repair, no issues whatsoever.

Hey, thanks for sharing your experience! That's really helpful to know it was the transmission fluid and cooler line in your case. I'll definitely look into getting it checked at the dealership. Just curious do you remember roughly how much you ended up paying for the whole repair? And has everything been running okay since then, or have you noticed any other issues pop up?

Hey there! Just wanted to follow up about the repair costs since you asked. I took your advice and went to the dealership turned out it was exactly what I suspected: the transmission oil pressure sensor was acting up, plus the transmission fluid was running way too low (just like in my previous case). The whole thing set me back 365€ not cheap, but totally worth it for the peace of mind! The best news is that my Q50 is running like a dream now. No more grinding sounds, no more slipping, and that annoying warning light is finally gone! It's been about four months since the fix, and I haven't had a single issue pop up. The dealership really knew their stuff with these hybrid systems. If you're still having those symptoms, seriously, don't wait around. Better to get it sorted before it turns into something bigger. My car feels like new again, and I'm so glad I didn't try to cheap out with a regular mechanic. These hybrids need that specialist touch, you know?

Thanks so much for the update! I actually took your advice and got it sorted last week at the dealership. am I glad I did! Turned out my issue was a bit different had a faulty transmission control module that needed replacing, plus they did a complete fluid flush. Ended up costing me around 550€, which was a bit of a punch to the wallet, but honestly worth every cent. The whole experience was actually pretty smooth. The service advisor walked me through everything they found, showed me the old parts, and even gave me some tips for preventive maintenance. My QX is driving like a brand new car now no more weird noises or warning lights! Really appreciate everyone's input here. Sometimes you just need that push to do things the right way instead of looking for shortcuts. Lesson learned: when it comes to hybrid transmissions, dealer service is definitely the way to go! Take care!