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Why do I get a Drivetrain Malfunction light on a 2011 535i?

The Drivetrain Malfunction light on a 2011 535i is an indication that there is a problem with the car's transmission. This light will usually come on when the car is first turned on, and it will stay on until the problem is fixed. There are a few different things that can cause this light to come on, but the most common issue is a problem with the transmission fluid. When the transmission fluid gets low, it can cause the gears to slip and grind, which will trigger the light. Another possible cause of the Drivetrain Malfunction light is a problem with the torque converter. The torque converter is responsible for converting the engine's power into motion, and if it fails, it can cause the transmission to slip.

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