You should not drive a BMW 335 if the battery light is on and it says "charging malfunction." This is a warning that there is a problem with the car's charging system, which could cause the battery to drain while you're driving. This could lead to a number of problems, including the car stalling or losing power while driving, which could cause an accident.
If the battery light comes on while you're driving, it's important to pull over to a safe location as soon as possible and have the car towed to a mechanic for repair. Driving the car with the battery light on could cause further damage to the car's electrical system.
