Seat Exeo transmission issues

Whoa, that sounds rough. Slipping gears and grinding noises are never a good sign with automatic transmissions. The engine light and gearbox in emergency mode definitely point to a serious issue. You mentioned the gearbox oil level, and that's a good starting point. Have you checked the level yourself? Is there any sign of leakage around the gearbox? Sometimes a simple top-up can do the trick, but if it's leaking, you'll need to address that too. Also, what kind of error code did you pull? Knowing the specific code could help narrow down the problem beyond just the transmission sensor.

Thanks for the quick reply. I haven't checked the transmission oil level myself yet – I wasn't sure where the dipstick was located on this model. I did a quick visual inspection and didn't see any obvious leaks, but I'll take a closer look tomorrow in the daylight. As for the error code, it was something like P0711, indicating a problem with the transmission oil temperature sensor circuit range/performance. Does that give you any more clues?

Okay, that P0711 code confirms the transmission oil temperature sensor issue, and the fact that it's going into emergency mode and shifting poorly definitely suggests the sensor is reading something way out of range. Given that you haven't checked the oil level yet, that's definitely the next step. However, since you're hearing grinding noises, I'd be hesitant to drive it much further. Those noises could indicate internal damage to the automatic transmission. If you can't find the dipstick or aren't comfortable checking the level yourself, I'd strongly recommend getting it towed to a reputable mechanic who specializes in automatic transmissions. They can properly diagnose the problem and check for any serious damage. Honestly, with those symptoms, you might be looking at more than just a sensor replacement. Best to get it checked out properly before it gets worse.

Took it to a local garage, and you were spot on. The transmission oil level was indeed low, causing the sensor to throw a fit. They topped it up and replaced the gearbox sensor while they were at it. Cost me 365€. Gear shifting is smooth as butter now. Thanks again for the help.