BMW 4 Series Convertible problems with the engine, engine indicator light keeps coming on

Hey, I once had a similar problem with my 2015 BMW 3 Series. I have a bit of experience with cars, but I preferred to leave this problem to the garage. I also had black smoke coming out of the exhaust and the engine was losing power. The garage then discovered that one of the lambda sensors was defective. I paid 375.0 euros for it and then everything ran perfectly again. So it could well be that the lambda sensor is also the cause. To be able to help you better, it would be helpful if you could provide more information about your vehicle, e.g. the exact engine. Good luck in solving the problem! Regards

(Translated from German)

Hey, thanks for the tip! My last inspection was at 108765 km. Could actually be the lambda sensor, I'll have it checked at the garage. Regards

(Translated from German)

Hey, if it's been a while since your last inspection, then it definitely makes sense to have the lambda sensors checked. I had similar symptoms with my 2013 BMW 4 Series: black smoke, engine warning light, loss of power and a strong exhaust odor. In the end, it turned out that the EGR valves (exhaust gas recirculation) were clogged, which caused all the trouble. The garage cleaned and partially replaced the EGR valves. This cost me around 450 euros, but since then the car has been running perfectly again. So in addition to the lambda sensors, it could possibly also be the EGR system that is causing problems. Maybe have the garage do a comprehensive check. I hope this helps you and you get the problem under control soon! Best regards

(Translated from German)

Hey, the EGR valves could also be an issue for me. Thanks for the tip, I'll definitely tell the garage when I take the car in. Maybe I'll find the problem faster that way. Thanks again for your help! I'll keep you posted when I know more. Regards

(Translated from German)

Hello, at the first start of the day the car starts, the cold starter is ok but when the engine speed drops to reach 600/700 rpm the car runs on 3 or 4 cylinders for a few minutes and as soon as the engine has warmed up a bit it runs perfectly. Only cylinders 4, 5 and 6 are affected. Spark plugs, coils, fuel pump and hp pump have been changed. Could this be due to the lambda sensor that controls the 456 cylinders? When the outside temperature is around 25°, there are hardly any problems. I'm a bit lost, thanks for your help. My car is a 2009 bmw z4 35i with 102000km

(Translated from French)

It sounds like your issue could be related to the fuel injectors. When the engine is cold, the fuel doesn't atomize as well, which can cause misfires if the injectors aren't delivering the fuel properly. I would suggest having the fuel injectors checked and cleaned if necessary. However, given the complexity of the issue, it would be best to have a professional mechanic diagnose the problem to ensure safety and proper repair.

Hello everyone, I have a bmw 320i (2007), I have an engine light on a little blue / white smoke coming out of the exhaust. My car sometimes stalls or throttles on its own. Thank you and good evening

(Translated from French)

The symptoms you're describing could be due to a number of issues, but a common cause is a failing Mass Air Flow (MAF) sensor. This sensor measures the amount of air entering the engine and if it's not working properly, it can cause the engine to stall or throttle on its own. I would suggest starting with checking the MAF sensor. However, the blue/white smoke could indicate an oil leak, which is a more serious issue. I would strongly recommend taking your car to a professional mechanic for a thorough inspection. Please keep us updated on your progress.

Good I have a E46 compact 316 ti I do not connect the Carly to the engine for the obd.

(Translated from Spanish)

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