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X5 E70 (2007 - 2013)
E70 BMW X5 produced between 2007 and 2013. Discuss the E70 X5 with other BMW owners here.

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  #1  
Old 06-05-2012, 07:00 AM
RockChips RockChips is offline
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Question Random questions on an X5 that I bought used

1. Should the mpg needle be constantly swinging? Before I took it in for a recall, I remember it being relatively stationary.

2. Sometimes if I am at a traffic light, and press the accelerator to go, the car jerks. Anyone experience that?

3. Whats the deal with automatic braking? Like going downhill sometimes, the thing brakes?
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  #2  
Old 06-05-2012, 11:28 AM
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serge1 serge1 is offline
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Quote:
Originally Posted by RockChips View Post
1. Should the mpg needle be constantly swinging? Before I took it in for a recall, I remember it being relatively stationary.

2. Sometimes if I am at a traffic light, and press the accelerator to go, the car jerks. Anyone experience that?

3. Whats the deal with automatic braking? Like going downhill sometimes, the thing brakes?
1. Depends on your driving style and location. In the city, it will consistenly swing. On the highway, with cruise control set, you will not see it swing much.

2. Saw multiple threads about jerking on this forum.

3. I know exactly what you are talking about. But it's not brakig actually. This is transmission shifting. In other cars, it's unnoticeable, but in the x5 (and 3-series loaners I had), it feels as if the vehicle is braking.
I think it negatively impacts the in-city MPGs by reducint the distance car rolls free, therefore fuel needs to be used when the car is at the bottom of the hill.
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Old 06-05-2012, 01:35 PM
MRV99 MRV99 is offline
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3) The car is using brakes. If have used this many times and the trans is not doing all the work. As for MPG, it is not meant for around town driving, it is meant for "off road" use or if you are if you are going down a steep grade. Pure novelty if you ask me.
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Old 06-05-2012, 02:11 PM
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serge1 serge1 is offline
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Originally Posted by MRV99 View Post
3) The car is using brakes. If have used this many times and the trans is not doing all the work. As for MPG, it is not meant for around town driving, it is meant for "off road" use or if you are if you are going down a steep grade. Pure novelty if you ask me.
I think you described the hill descend control, which does indeed use brakes.
The OP was describing a normal driving down the hill. I expereince the transmission slowing down the vehicle every day, when coming down a hill in my neighbourhood.
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