[andysat]

Hi all-I have a 58 e93 the handbook says I have hill assist-but I don't seem to have it?-can anyone shed any light please-thanks

[Welcome to NBA Jam]

Hill start assist or hill descent assist? My E92 has hill start assist, it automatically holds the brakes for 2 seconds. I think this is standard.

[andysat]

Hill start assist-thought it was standard tbh.

[kunal_d]

I think this feature is only available on manual cars. Your foot has to be on the brake and car in gear and at a complete stop. When you let go of the brake to get going again the car should hold the brakes for 2 seconds or until you give it some gas to go. Needless to say, you will have to be on an incline...

[kfriceman]

It holds the hill until you give it some gas and is also available on the auto equipped cars.

-Kevin

[1chanc3]

Originally Posted by kunal_d

I think this feature is only available on manual cars. Your foot has to be on the brake and car in gear and at a complete stop. When you let go of the brake to get going again the car should hold the brakes for 2 seconds or until you give it some gas to go. Needless to say, you will have to be on an incline...

Nope. It's present on auto, but different.

Hill assist on auto holds the vehicle on a hill without the driver having to press the brakes. This prevents the car from going backwards when the driver tries to switch their feet between the brakes and the gas pedal.
I believe hill assists only works for anything steeper than 7 degree incline?

[StevenY.]

Don't you have to press that button to activate hill assist? (The button next to the red circled one)

[KwlAznKid]

what's a 58 e93?

[tc535i]

Originally Posted by KwlAznKid

what's a 58 e93?

it's a brit thing, they refer to a car's production date by the licence plate assigned

http://www.theaa.com/motoring_advice...berplates.html

So a "58" plate car was produced between 9/08 and 2/09

[335NJ]

I figured only manual cars have/need it. Gives enough time to release the clutch and grab some gas, eliminating the typical clutch/gas pedal matching to hold your position.

[parabola]

Originally Posted by StevenY.

Don't you have to press that button to activate hill assist? (The button next to the red circled one)

No.
That's hill descent control.

[vanondemand]

You have to be in 1st gear on a hill, it'll hold for a few seconds before letting you roll back.

[Illoosive]

What's Hill descent control? I'm in MT e92

[chowser51]

hill decent control, or the duck button as i call it does this:



Hill Descent Control (HDC).

Hill Descent Control (HDC) holds the vehicle steadily at a pre-determined speed, helping with the job of brake control so that the driver can concentrate completely on steering. This makes the potentially difficult task of driving down a steep hill or over rough ground easy.

Hill Descent Control (HDC), a driver assistant system in four-wheel drive vehicles, can be activated with the press of a button. When travelling at less than 35 km/h, HDC assists you by reducing you to a constant speed of approx. 7 km/h, or 6.5 km/h when reversing. The brake lights come on automatically to warn any drivers situated behind your BMW. The accelerator and tempomat can be used to vary speed between crawling speed and 25 km/h, but if you want, you can of course move faster or slower: HDC then goes into standby mode. It is deactivated once your speed goes above 60 km/h.
HDC is particularly helpful when driving on changeable, loose or slippery downhill surfaces, such as gravel, snow or grass. Together with ABS, it ensures excellent stability while still preventing the wheels from locking if you apply the brakes on a slope. This prevents the vehicle from skidding and permits you to retain control over the steering.
When HDC deactivates, it goes into fade-out mode, gradually reducing braking force and giving you enough time to again take full control of your speed.

[mansito]

Originally Posted by Some guy somewhere

Hill start assist or hill descent assist? My E92 has hill start assist, it automatically holds the brakes for 2 seconds. I think this is standard.

Ditto. My 2013 e92 6MT has Hill Start Assist. It holds the brake for ~2 seconds when you start from standstill.

[PhaseP]

Hill start assist on manual (don't know auto has it or if what it does) works this way:

There is an incline sensor in the car. If you are fully stopped uphill, and if your foot is on the brake and you put it in 1st gear, when you remove your foot from the brake pedal, car continues to apply the brakes about 2 seconds more. To prevent the temporary rolling back until you engage the clutch and move forward.

The nice thing about this, if you are downhill stopped and put in 1st gear, when you release the brake pedal, it doesn't apply brakes, because it knows you want to roll downward actually. And same goes for the other way, if you are uphill stopped and on brakes, put it on reverse and release the brake pedal, it doesn't apply the brakes as it does on 1st gear.

If you put it on neutral on a hill stopped and release the brake pedal, it doesn't apply the brakes either, because you would only do this if you want to roll down on neutral.

The hill descent control, as far as I know only comes on X drive equipped ones. What it does, going downhill on slippery conditions like icy road, if you hit this button, it keeps your current speed, and you don't need to apply breaks to hold your speed. The car itself applies and releases the brakes as the car rolls down the hill to keep it at a steady speed. I believe this works only on very low speeds. It gives an automatic very controlled down hill roll down on icy roads. I had tried this once only, just to see how it was working. I don't remember if the cruise control buttons were working with it, to increase and decrease the descent speed. It was kind of cool, but at the same time dump. I could easily do the same by applying the brakes myself, so never used it at all again.

[sal_park]

Originally Posted by andysat

Hill start assist-thought it was standard tbh.

Only on 6 cylinder engined cars I believe...

[KwlAznKid]

Originally Posted by tc535i

it's a brit thing, they refer to a car's production date by the licence plate assigned

http://www.theaa.com/motoring_advice...berplates.html

So a "58" plate car was produced between 9/08 and 2/09

wow interesting.. good to know thx

[John 070]

I thought you only got this feature when you add M carpeted floor mats? You get that and 13 HP/19 ft. lbs. with those mats.

[Reckless335]

Originally Posted by PhaseP

Hill start assist on manual (don't know auto has it or if what it does) works this way:

There is an incline sensor in the car. If you are fully stopped uphill, and if your foot is on the brake and you put it in 1st gear, when you remove your foot from the brake pedal, car continues to apply the brakes about 2 seconds more. To prevent the temporary rolling back until you engage the clutch and move forward.

The nice thing about this, if you are downhill stopped and put in 1st gear, when you release the brake pedal, it doesn't apply brakes, because it knows you want to roll downward actually. And same goes for the other way, if you are uphill stopped and on brakes, put it on reverse and release the brake pedal, it doesn't apply the brakes as it does on 1st gear.

If you put it on neutral on a hill stopped and release the brake pedal, it doesn't apply the brakes either, because you would only do this if you want to roll down on neutral.

I have this feature on my car (6MT e92 335i) and I knew about it working on the uphill (surprised me the first time I found out about it) and obviously it doesn't work while going downhill, as for the reasons you stated. But you mentioned reverse, and I hadn't thought about it (I don't think I've reversed down an incline. If I were to come across such situation I'd be one to just leave it in neutral and let gravity do the work) But you made me think of something I haven't tried and you didn't mention....

Ok, so it works when trying to move forward uphill, it doesn't work when trying to move forward downhill. Also doesn't work when trying to reverse downhill, but does it work if trying to reverse up an incline? I haven't had to reverse up an incline yet, but lets say you were parallel parked on a downhill slope. The guy in front of you just so happens to be too close to you so that you can't just cut the wheel and ease out of your spot. You actually have to back up the hill before you're able to go forward. If I put it in reverse on a downhill slope and let off the brake, will it hold my car for ~2 seconds until I can start reversing? Or do I need to clutch/pedal match like you would need to in other vehicles? Has anyone tried this?

Before anyone suggests that I try it myself, I don't live near any steep enough grade hills to try this on. At least not any hills where I can come to a complete stop and attempt to reverse. But I'm curious to know.

[sal_park]

Originally Posted by latino1ny

will it hold my car for ~2 seconds until I can start reversing? Or do I need to clutch/pedal match like you would need to in other vehicles? Has anyone tried this?

Before anyone suggests that I try it myself, I don't live near any steep enough grade hills to try this on. At least not any hills where I can come to a complete stop and attempt to reverse. But I'm curious to know.

yes, it does do this.

[PhaseP]

Or do I need to clutch/pedal match like you would need to in other vehicles? Has anyone tried this?

I hadn't tried, but others said in the thread it does, which wouldn't be surprising since they already do it for forward, why not for reverse.

About clutch/pedal match, for bumper to bumper situations, I personally would rather use the e-break. It is the low tech version of hill assist feature, but you are not limited to 2 seconds, you can hold the e-break until the car starts to move clutch engaged.