Good afternoon,
For the past two days my 2008 335xi will jerk forward when I turn off the car. I will put the car in park. Wait a few seconds, press the stop button and the car jerks forward. I have zero idea what can cause this? Anyone else? Note that if I start the car, and turn it off it doesn't happen. Only after driving the car.
Thanks for your help and support.
Keep foot on brake to prevent the jerk.
marvinstockman, even if the car is in park just idling? I pulled into the driveway, put the car in park, opened the hood, got back in and turned off the car and it jumped forward. Thanks again for your reply.
If it is jerking as you say, you may wind up breaking the parking mechanism inside the transmission.
I would suggest putting car in park, and turn it off with foot on brake (hard), which should take stress off of parking mechanism inside transmission.
Thank you for you help and advice.
That's... not really a solution.
Does it do the same if you put it in Neutral and then shut it off?
I think you need to test a few more scenarios. Go for your typical trip, get to the destination and put the car into N and shut it down. Do the same process that you do that makes it jerk in P, but do it in N instead. If you can affect the symptoms by selecting different shift lever positions, it could be a clue. Obviously, I am not suggesting that you learn to live with a malfunction, but rather you might learn valuable information by trying different things.
It does not make any sense that it would jump in P. I'm not saying you are nuts (you could be, but this is not how we would know) but I am wondering if you can do other methods/sequences to turning the car off and see if the symptoms persist or go away, or change. And, does the symptom set occur each time or is it sporadic?
You seem to be describing a solenoid that is firing at the wrong time.
This doesn't sound normal. Possibly an upcoming transmission issue ($$$$$).
How hard is the jerk? Can you make a video from outside?
Update: Took my 335xi into the dealer to have the oil replaced in the transfer case and both differentials. Believe it or not, they were the cheapest in my area! What a difference this has made. The car no longer kicks forward when you turn off the engine.
Not sure why or how this would resolve this issue or if the issue is hiding at the moment. If it returns, I will try @JDStrickland's idea and see what happens. The past week I had zero issues.
Thanks to everyone who replied. Much appreciated.
Cheers, Brodosi
So just for grins I pulled into the driveway, put the car in neutral, put on the parting break and tried to turn off the car. It will not turn off when in neutral. Foot on break, pushing or even holding the stop button and the dash lights up with a cap P stating the car needs to be in park. NEVER seen this before.
I'd have to double check but that sounds correct.
In neutral, you should be able to push the start/stop button once and the car will shut off but you won't be able to remove they key or turn the car entirely 'off.'
Does the car recognize sport mode if you bump the shifter over? Can you shift up/down in sport mode? The wires are known to break down in the shifter assembly; I wonder if there might be some exposed copper touching something it shouldn't be...
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