Lexus LS AC failure

I also own a Lexus LS, though I won't bore you with the year, and this sounds painfully familiar. The symptoms are pretty much spot-on with what happened to mine a while back. Have you checked if the compressor is engaging at all? It might be worth getting a second opinion before jumping to conclusions about the control unit. Think of it like a faulty fuse box causing a blackout, you wouldn't immediately assume the main power station is down, would you?

Thanks for the reply! How did you figure out it was the compressor? The mechanic seems pretty sure it's the control unit, but I'm always wary of expensive repairs. Did you also have the error code and warning light? Any more details would be super helpful!

The garage confirmed it was the compressor after some tests. Given your symptoms and the error code, it does sound like a similar issue. Honestly, I'd advise taking it to a reputable workshop for a proper diagnosis. It’s like trying to diagnose a heart problem with a stethoscope alone – sometimes you need the full ECG.

Thanks so much for your help! I took your advice and went to another mechanic, and you were right – it was the compressor after all! The final damage came to around 980€. I really appreciate you sharing your experience!