Why is the engine "revving" as I am braking, and the car is difficult to stop?

Asked by May 20, 2014 at 01:57 PM about the 2013 BMW 3 Series 328i xDrive Sedan AWD

Question type: Maintenance & Repair

I had a frightening experience coming to a stop, and the engine revved and I pushed on
the brakes, really hard, got it stopped, put the car in park, and turned it off.  It felt like the
car just wanted to keep moving.  I turned it on again, in park, and the engine revved
again, turned it off. I waited until traffic cleared, turned the car on and it seemed fine.  It
has been towed to the dealer, the computer scan showed no problem, but I am scared to
drive it.  It is a 2013 328 x drive with just over 7300 miles on it.

2 Answers

925

Throttle position sensor is sticking or there's a small chance of a vacuum leak

2 people found this helpful.

Same problem on my wife's x3. Revved to over 7000. Had to kill car in middle of street. Waited 5 mins and restarted. Could then drive to safe location. Second time it has happened, although first was much less severe. If our kids had been driving, they would have been in terrible trouble. Poor response from BMW when we explained the problem. Very unhappy.

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