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Discussion Starter #1
So a couple of days ago while driving home I was curious about the ESP button. I've read here before that if you just press and release the button, the light comes on the dash and the system is disengaged for a short period after which it turns back on and the light goes off. So as I was going home on the highway, I pressed the button to see how long it would take for the light to go off. Well, it didn't. After half an hour of highway driving, it was still on! So I turned the ESP system back on and then pressed and held the button to disengage the system completely. This worked fine, and I had confirmation with the message "ESP OFF" on the dash.

What does all this mean? How can I check if the ESP system is working properly?
 

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As I understood from the O.M. the single push of the button is a partial off.
As I interpeted it, it makes the system less sensitive, ie, allows a bit more wheelspin before traction control comes on, reduces A.B.S. sensitivity etc.
It does not revert to a full back on status till button is pushed again.
Now again, as I interpet it, the hold the button down till it chimes is a full shut down of A.B.S. and T.C.S. and again, stays off till button pushed.
Also, upon restart the system will be back on.

Your gonna get a bunch of responses on this one and I'll probably get a bit more clarification as well

Rob
 

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I was under the impression to get full off, you had to be not moving and hold the button in for several seconds. I don't know if you have to be in neutral or park to do it, but that's they way I have done it in the past.
 

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You can be in gear or neutral, and you can begin pushing the button before you come to a complete stop but I believe you need to be at a stop before the 5 seconds required to shut off the ESP. I've turned mine off as I coast up to a stop sign. Partial off (just pressing the button, not holding it) can be done on the move. The owner's manual does a good job of detailing when the system is in partial, full or whatever. There are 5 systems that work together - ESP, BAS, ABS, TCS and the fifth I can't remember. It's all very simple if your last name is Einstein. Also, ESP is only partial off in low range. To turn it off completely, you still have to use the same procedure of push and hold for 5 seconds.
 

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All what you have explain is normal, and there no sign for any problem.

Take a turn little fast to make the tail drift a bit and notice if the ESP get involved and correct the direction, you will feel it and hear it.


Now again, as I interpet it, the hold the button down till it chimes is a full shut down of A.B.S. and T.C.S. and again, stays off till button pushed.Rob
ABS and TSC never get turned off,, when you press the ESP button to Full Off, it turns of the ESP system only, so that the system doesn't try to correct the direction of the vehicle.

I was under the impression to get full off, you had to be not moving and hold the button in for several seconds. I don't know if you have to be in neutral or park to do it, but that's they way I have done it in the past.
You just need to be at low speeds.
 

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Discussion Starter #6
You just need to be at low speeds.
Actually, I was able to get it to full off going > 40 mph. My original concern was just that I though a single push of the button will disengage the system and turn the light on at a warning. After several minutes (?) the light would turn off and the system re-engage automatically. In my XK, the light never goes off.
 
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