Macan's Rough Running Puzzle: Model Acting Up

Hey there! I had nearly identical issues with my 2011 Porsche Cayenne last year. The symptoms you're describing match exactly what I experienced, rough idle, power loss, and terrible fuel economy. The check engine light led me to discover it was indeed the intake air temperature sensor. I took it to the official Porsche service center because these sensors are pretty specific to the brand. The fix wasn't particularly complex, they replaced the sensor and cleaned the surrounding air intake system. It's not a major repair, but it's crucial to get it done because a faulty sensor messes with the engine's air-fuel mixture. My car was running perfectly after the repair. Just make sure you get a proper diagnostic first, while the symptoms point to the intake sensor, it's better to be certain. I'd recommend finding an authorized Porsche dealer or a specialized German car workshop for this kind of work. These engines are quite sensitive to incorrect sensor readings. Good luck with the repair!

Hey, thanks for sharing your experience! That's really helpful since I've been worried about this issue. Quick question, do you remember roughly how much you ended up paying for the sensor replacement and cleaning? Also, has everything been running smoothly since then, or have you noticed any other quirks pop up? I'm trying to budget for this repair and want to know what to expect long-term. Thanks again!

Hey again! Glad I could help! Yeah, I just got my car back from the mechanic last week actually, they confirmed it was exactly what I suspected, a faulty intake air temperature sensor. The total bill came to 155€ for the fix, and I've got to say, it was worth every penny. The car's running like a dream now! Since you asked about long-term performance, I'm happy to report that all those annoying symptoms (the rough running, power issues, and that frustrating jerking during acceleration) completely disappeared after the repair. My fuel economy is back to normal too, which is a nice bonus for my wallet! Haven't noticed any other issues pop up since the fix. The warning light's gone and everything's working exactly as it should. If you're experiencing the same symptoms I did, I'd definitely recommend getting it checked out. The peace of mind alone is worth it, and it's actually not as expensive as some other Porsche repairs can be. Let me know how it goes if you get it fixed! Always happy to share experiences with fellow Porsche owners.

Thanks so much for the detailed follow-up! I actually just got back from the mechanic today and you were spot on! Took your advice and went to a specialized German auto shop. The diagnostic confirmed it was the intake air temperature sensor, just like in your case. My bill was slightly higher at 180€, but I'm not complaining because the difference in how the car runs is like night and day! The mechanic was super professional and even showed me the old sensor, it was pretty gunked up. Took them about an hour to do the replacement and cleaning. Just drove home and wow, what a difference! No more jerking, power's back to normal, and the engine's purring like it should. Really appreciate everyone's input here, saved me from stressing too much about it. Sometimes these luxury cars can give you a heart attack when something goes wrong, but this turned out to be a pretty straightforward fix. Thanks again for sharing your experience, it really helped me make the right decision!