BMW Active steering

The first apparition of the active-steering on the 5series E39.

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Autos & Vehicles

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• Steering
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• car crash

[dubrananc]

Hello jhbonarius, even if you keep the hands on the steering wheel, in emergency case, the active steering will turn the wheels if necessary, without feedback for you. the action of the active steering is on the steering rack, not on the steering column.

As if there is a strong lateral wind, your steering wheel don't move, but the system correcting the trajectory.

[Manwithjeep]

I have a '07 335i sedan. How would I find out if it has A/S? Can I look under the hood and easily see a box or something obvious or do I have to look underneath to see the steering gear assembly? Thanks

[dubrananc]

@Manwithjeep Hello!

At first, when the car is stop, engine on, turn your steering wheel from left to right, you must have 1.7 rotation, that means with a very little movement on your steering wheel, your front wheels move fast!

Second, on yuour steering rack, you should have an electric motors, who's acitvate the game gear upon the steering rack. You can also send me the last seven digits of your VIN number, and i will send you your optional list.

Regards.

[Raychow0910]

how to initialise active steering?? some say turn right n left...some say let car straight....which 1??thanks...

[dubrananc]

@Raychow0910 Hello! Wish bmw model have you?

Why do you need to re initialise? Do you disconnect the battery? if yes for how many time?

first step (doesn't work for all situation, is effectivly to maintain the steering wheel 2-3 second left same to right, two or tree times.

Depend of the model, drive the car for few hundreds meters can be enough.

After that, in other case,after parts replacement, or ECU disconnected, some BMW diagnosis process must be done, let me know what is your case.

[Raychow0910]

can i ask something??

[dubrananc]

@Raychow0910 Sure! excuse me, I was in holyday!!! If you still want to ask a question?!

[jhbonarius]

So if I understand it correctly: in the case of an emergency brake you should let go of the steering wheel?

[Raychow0910]

how about suddenly comes out active steering fault and steering become not straight ...