How to disable Hill assist? - Mercedes-Benz Forum

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post #1 of 24 (permalink) Old 02-12-2009, 11:46 AM Thread Starter
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How to disable Hill assist?

I was wondering if there is any way to disable Hill Assist on my E320.
I believe H.A. is what gives my car a little delay when departing from stops. I find it rather annoying.

I live in Chicago and we have NO hills to worry about!

Thx
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post #2 of 24 (permalink) Old 02-12-2009, 11:56 AM
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What in the "hill" is hill assist, do you have the transmission in W or S mode. The W is winter the S is summer, I think W starts it in a higher gears!
sorry abot the play on words
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post #3 of 24 (permalink) Old 02-12-2009, 12:03 PM Thread Starter
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Hill Assist is the feature that keeps the car stopped when you are on an incline and you let the foot off the brake.
I believe is a system that actuates the brakes while you are stopped, then as soon as you give some gas it releases the brakes and let the car go.

Again, since I live in Ill. I can "enjoy" this feature only on parking lot ramps :-) ...so to me would be much better off all the time.
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post #4 of 24 (permalink) Old 02-12-2009, 12:38 PM
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Again, since I live in Ill. I can "enjoy" this feature only on parking lot ramps :-) ...so to me would be much better off all the time.
We understand now when you enjoy it but when do you hate it then? You don't have to switch off a feature if you don't enjoy it often.
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post #5 of 24 (permalink) Old 02-12-2009, 01:43 PM
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Automatic transmissions don't have hill assist. Unless you have a grey market E320 Euro, you don't have hill assist because you don't have a standard transmission. Hill assist is meant to keep the car from rolling backwards during the 2 seconds it takes you to move your foot from the clutch pedal to the brake pedal.

Make sure you are starting in 1st gear. You may have your transmission set to start in second gear, which is a slow but smooth take-off.
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post #6 of 24 (permalink) Old 02-12-2009, 04:16 PM Thread Starter
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I have a 2005 E320 4matic SW and I am pretty sure it is not grey market (how can I verify?).
I came to the conclusion is hill assist feature because if you stop on hills and you let the brake go the car would not go backward.
Maybe I just came to the wrong conclusion.
The problem I have (which is what made me think of the hill assist is that whenever I press the accelerator after a stop I have the feeling of a delay. It feels like there is a 1/2 second when the car is not doing anything. The engine is running fine and I am certain I have it set to use first gear. I know about the smooth take off feature.

Well, I'll have to take it to the shop soon and I will talk to the mechanics to see what they say.
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post #7 of 24 (permalink) Old 02-12-2009, 05:43 PM
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Love those question when the poster ask specific details without giving model year.
On my 2005 E-class the hill holding option works only with transmission on "C" mode.
In that mode the car starts in 2-nd gear and it is clumsy BECAUSE OF THAT.
Switch transmission to "S" and the car starts on 1-st while disabling hill holding, or if you still want the hill holding you can just nail the gas pedal what will override comfort mode and downshift to 1-st gear. Still with some jerking.
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post #8 of 24 (permalink) Old 02-12-2009, 05:43 PM
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The transmission design, keeps it from moving backwards when in forward gear, someting about reverse sprag.
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post #9 of 24 (permalink) Old 02-12-2009, 05:46 PM
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The transmission design, keeps it from moving backwards when in forward gear, someting about reverse sprag.
In my E it is SBC brakes. Nothing to do with transmission.
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post #10 of 24 (permalink) Old 02-12-2009, 06:07 PM
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mr.xpowerseller
I have a 2005 E320 4matic SW and I am pretty sure it is not grey market (how can I verify?).
I came to the conclusion is hill assist feature because if you stop on hills and you let the brake go the car would not go backward.
Maybe I just came to the wrong conclusion.
The problem I have (which is what made me think of the hill assist is that whenever I press the accelerator after a stop I have the feeling of a delay. It feels like there is a 1/2 second when the car is not doing anything. The engine is running fine and I am certain I have it set to use first gear. I know about the smooth take off feature.

Well, I'll have to take it to the shop soon and I will talk to the mechanics to see what they say.
Do you have an automatic transmission? If so, then you don't have hill assist. You have an automatic transmission, just like any other auto tranny, that will keep the car going forward when in D.
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