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While cruising in your BMW, you spot a code flashing on your dashboard - 4010. Unable to decipher its meaning, you realize it's one of those random codes that pop up indicating a system part needs attention. In this instance, code 4010 points to a DPF fault, most likely caused by a faulty exhaust back pressure sensor. To fix this, you may have to shell out between $20 and $90 for a replacement sensor.
In BMW vehicles, if you see Code 4010 on the display, it indicates that there is a problem with the Diesel Particulate Filter (DPF).