what would cause the eml light to come on, when the car will barely move? on 2000 BMW 323i

the car was barely moving though given full throttle; the EML light came on. When we added a quart of oil and a pint of water, the car began behaving normally and the EML light went off

Asked by for the 2000 BMW 323i
I am having the exact same problem. I was just wanted to clarify that you put a quart of oil in the engine and a pint of water....... in the radiator?
2 answers
That means the emergency light. When 1 or more of the potentiometers fail the light will illuminate and the MDK Motor Driven Throttle Valve will deactivate, putting you in a reduced power mode. Have your system tested for faults before it leaves you stuck on the freeway.