BMW M2 Power Loss Linked to Faulty Air Temp Sensor

Hey there! I had the exact same issue with my 2018 BMW M4 last summer. The symptoms you're describing match what I experienced, power loss and CEL. My intake air temp sensor was indeed faulty, causing incorrect air-fuel mixture readings. The repair itself wasn't too complex. My mechanic replaced the sensor and cleaned the surrounding intake system components. The whole job took about 2 hours. The good news is that it's not a serious issue if caught early, but ignoring it could lead to bigger problems with fuel consumption and engine performance. Interestingly, during my repair, they found that debris buildup around the sensor was part of the problem. Since the fix, my car's been running perfectly, no power issues, no check engine light. Make sure whoever works on it has experience with BMW electronics, as proper calibration after replacement is crucial. Hope this helps with your decision! Best regards

Hey, thanks for sharing your experience! That's really helpful to know it was fixable and not too complicated. Quick question, do you remember roughly how much you ended up paying for the whole thing? Also, has everything been running smooth since then, or did you notice any other quirks pop up afterwards? Just wanna make sure I'm prepared for what's ahead with my M2. Thanks!

Hey there again! Just to follow up, yeah, after getting it fixed, everything's been running like a charm! The total bill came to 155 € for fixing that faulty intake air temperature sensor. Pretty straightforward job, really. The mechanic did a thorough job, and I haven't had a single problem since the repair. My M4 is back to its old self, full power, no check engine light, nothing weird at all. To be honest, it was worth every penny considering how much better the car runs now. I was a bit worried at first like you, but turns out it was just one of those maintenance things that pop up now and then. Really glad I didn't put it off any longer. If you're still on the fence about getting it fixed, I'd say go for it. These sensors are pretty important for keeping everything running right, and it's better to sort it now than wait for bigger issues to develop. Let me know how it goes with your M2! Cheers!

Thanks everyone for the advice! Just wanted to update you on what happened. Finally got my M2 checked out and fixed yesterday. You were right, it was the intake air temp sensor causing all the trouble. Found a really good mechanic who specializes in German cars. The whole thing cost me about 180 €, a bit more than expected but totally worth it. The mechanic also found some debris around the sensor area and cleaned everything up nicely. Took about two hours, just like you mentioned. Driving back home was like having a completely different car! The power's back, no more check engine light, and it's running super smooth. Really glad I didn't wait any longer to get it fixed. Thanks again for pushing me to get it sorted. Nothing beats having peace of mind when driving, especially with these performance cars. Time to enjoy my M2 properly again! Catch you all later!