Shellbmb

Just discovered a feature I didn't know my car had. After coming to a complete stop at a stop light, if you quickly tap on the brakes again, it activates the "HOLD" function and a HOLD light pops up on the display. It will hold the car without you holding down the brake pedal. And it simply releases when you accelerate. My BIL's GL has it and he was asking me if I did. Just found out I did. Can come in handy at times I guess.

Aresh

I use it all the time at lights!

Pierce Brosnan

Thanks for your suggestion. I really appreciate that you took all this time to try and help us. Keep up the good work. Keep on taking action.

m a x i m u s

interesting find. thanks for sharing!

CPD SLK

Is this a newer model thing? Or would an 09 have it?

LAMB09

I think this is a facelift only feature my 2011 doesn't seem to want to do this. I know the hold message on the dash is for sure a 2012 and up only thing.

jvanbrecht

It's called brake assist I believe. If we are talking about the same thing. If you are on an incline sufficient to overcome the vehicles natural forward motion when not using the brakes and in gear, the brakes will hold until you hit the accelerator. On steep inclines it works well, on mild inclines, I have noticed the hold does not stay active, and if you are not paying attention the car may inch forward and rear end someone...

I have an 09 model and it does this, but no light on the dash.

Shellbmb

Mine is a 2012 coupe. It is different from the hill assist. This basically just frees your foot up at stoplights from having to hold the brake pedal.

van_rider

I also discovered this accidentally when I got my 2012 sedan.... I love the feature!

jvanbrecht

Ahh, k, you learn something new everyday...

Seems like a lazy mans tool.. and honestly.. a bad idea, teaching drivers to pay less attention to what they are doing with their brake foot...

SaphGreyC63

I wouldn't call it a lazy mans tool. Its extremely useful at lights and I thought it was gimmicky when I first got the car, but I have been using it at pretty much any stoplight since then and when I am not driving my car I find myself doing it in other cars and then annoyed that I have to hold my foot down on the brake at lights, lol.

Basically, come to a complete stop, push brake pedal down again, HOLD light comes on dash. Press gas or brake pedal again to disengage.

Mort

On a 2010 the Brake Assist System (BAS) operates in emergency situations. When you apply the brakes very quickly the BAS applies full brake boost automatically potentially reducing braking distance.

The 2010 has Hill-start assist, on uphill grades, that holds the car for ~ 1 second after the brake is released so you can start off smoothly. The trans has to be in D or R and just hold the brake.

roadtalontsi

Exactly, The hold feature is totally different from this. you can deactivate hold by pushing the gas or pushing the brake down again.

Case1906

My 2011 E Class has it and I love it. The E is my DD and I do quite a bit of city driving. It's all electronic so there is no feeling of getting off the brake or a gear shift. Good job on this Mercedes.

Case1906

Harsh jvanbrecht, think of it as 'cruise control' braking at red lights

AhhMyyGawd

haha just found out the car had that feature today. was just testing the brakes and activated the hold feature. definitely useful for stop lights and hills. Also didnt know the car came with two auxiliary power ports (Thank god) until i had a backseat passenger who was playing around with stuff

C SEXY 3

Came here looking for anyone else who figured it works on the pre-fl cars haha!!! Mine does this if I am on a hill and push on the brake hard and back off then hard again. Nothing to show it's in the HOLD feature though.

AhhMyyGawd

I'm assuming they changed that. Mine said "HOLD" under the speedometer. Guess they added that feature in facelift. Can't imagine what they were thinking not adding that to the pre-FL. How would you even know...

markcwq

Brake Hold function only applies to facelifted W204 (2012 and up). The Adaptive Brake Function on the pre facelift model is a totally different system to the Brake Hold function on the facelifted car.

Vladds

Still, it does the hold, pre fl.
In mine you have to select manual though, once you do, it will stay there without touching the brake for as long as you want.

OmarC63

Wow. Had no idea it could do this. I guess it's not really that big a deal but it keeps making me wonder what else it can do that hasn't yet been documented. This needs to be added to the thread with the tips/secrets.

Brunty88

Any one had this stop working ?
Couldn't get it to activate yesterday ?
Any suggestions?

rene_gts

When the car is stopped and your foot on the brake then firmly add more pressure with your foot to the break pedal and it will automatically apply (you'll see it light up in the dash). You can now take your foot of the break and the car will stay on the breaks and if you want to get moving again then just accelerate.

Brunty88

I know how to use it I've been using it since I got the car
However yesterday I couldn't't get it to work and I tried multiple times and tried after restarting the car

So has anyone had it stop wokrking on them ? If so any suggestions?
I don't want to start a new thread to have BLKROKT kick off

INS1GNIA

Haha, good thinking.

Try it at different times after you come to a stop...examples:

• Creep to a stop then apply hard pressure directly after stopping.
• Start creeping to a stop and still while creeping some, apply hard pressure.
• Come to a stop, wait to the count of 5 then apply hard pressure.
• Come to a stop, wait to the count of 5 then creep the car forward some, then apply hard pressure.

If none of those work, you could always try disconnecting the battery and seeing if that will reset it. If nothing else, take it to the dealer and see if it is something that can be toggled on and off.