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AndiWheels

BMW 4 Series Convertible problems with misfiring for some time now

Hello everyone, I have a problem with my BMW 4 Series (built in 2017, gasoline engine). For some time now, it has been showing the following symptoms: black smoke from the exhaust when accelerating, check engine light on, loss of power, unsteady engine, jerking when accelerating, starting problems, high fuel consumption, stalling at idle and shaking at idle. I suspect it could be due to defective ignition coils or misfiring. Has anyone had similar experiences? How did the workshop fix this? I would appreciate any tips and your experiences. Thank you!

(Translated from German)

95 comment(s)

Laurenz

Hello, my Bmw always has the problem that it doesn't take the gas well and when accelerating the power is delayed and it jerks. What could this be?

(Translated from German)

CarlyMechanic

Quotation:

@Laurenz wrote on

Hello, my Bmw always has the problem that it doesn't take the gas well and when accelerating the power is delayed and it jerks. What could this be?

This could be due to a number of reasons. One common cause is a faulty throttle position sensor. This sensor tells your car's computer how far the throttle is open and the rate of throttle opening. If it's not working properly, it can cause issues with acceleration. I would recommend starting by checking the throttle position sensor. If this doesn't solve the issue, it might be best to have a mechanic inspect your vehicle.

Imran

Why does my car misfire cylinder 1 and 4 every morning after changing mass air flow sensor by original old bmw parts

CarlyMechanic

Quotation:

@Imran wrote on

Why does my car misfire cylinder 1 and 4 every morning after changing mass air flow sensor by original old bmw parts

Misfires in specific cylinders could be due to several reasons. Since you've recently changed the mass air flow sensor, it's unlikely to be the cause. The issue could be with the spark plugs or ignition coils for cylinders 1 and 4. I would recommend checking these components first. If they appear to be in good condition, then it might be worth investigating the fuel injectors for those cylinders.

DKlithuanian

Misfire cylinder no.3 in BMW 520 e60 2003 petrol. I put new ignition coil and spark plug.

Panno

Hey. I changed both vanos and exhaust sensor and I still have misfires and rough idle. I also changed O2 sensor before catalyst, MAF sensor, all 4 spark plugs and ignition coils. Still 29DO. Any ideas?

Norbert550i

Hello everyone, I have this error code permanently on the other cylinder as well. Does anyone know what the cause is. 550i year 2012 504 (. 17.10.20122 0005 BAJO00110 ) Thank you! 140501 Response required Smart Mechanic available Description: Combustion misfire, cylinder 5: Injection is switched off Error Category: Engine (More details in Smart Mechanic) Related errors 5 (More details in Smart Mechanic)

(Translated from German)

RamonPopi

Hello. What is this failure? How is the car's engine affected? Best regards

(Translated from Spanish)

CarlyMechanic

Quotation:

@RamonPopi wrote on

Hello. What is this failure? How is the car's engine affected? Best regards

This error code indicates that there's a misfire in cylinder 5 and the fuel injection has been switched off for that cylinder. This can cause the engine to run rough, lose power, and potentially damage the catalytic converter if not addressed. The cause could be a variety of issues, such as a faulty spark plug, ignition coil, or fuel injector. I would recommend starting with checking these components. If the issue persists, it would be best to have a mechanic inspect your vehicle.

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