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Post by mrmeaty on Nov 23, 2019 5:18:19 GMT
When the "Auto Hold" is being used, apparently the DSG cars have a light in the dash that shows it is actively holding the vehicle. I don't see this light in the dash of my manual 2019 Golf R. Is there a way to code this? I'd like a visible indicator that the hill hold is actively holding my vehicle in place.
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Post by vwjap on Nov 23, 2019 8:58:06 GMT
It’s the red handbrake light but green on mine dude
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Post by mrmeaty on Nov 24, 2019 7:13:25 GMT
It’s the red handbrake light but green on mine dude Cool...so there should be a way to code it on mine then. I'm assuming yours is DSG? |
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Post by vwjap on Nov 24, 2019 9:12:20 GMT
Afraid so DSG with auto hold and AID, like I said when you come to a stop (with a little pressure on the pedal) the handbrake light in the middle of the aid comes on in green (instead of read)
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Post by newty on Nov 24, 2019 13:01:20 GMT
I cannot remember an dedicated hillhold icon from my last manual.
EU Golfs have Autohold, activating that will keep your car from moving when releasing the brake at all circumstances (giving a green (P)).
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Post by mrmeaty on Dec 7, 2019 20:04:14 GMT
I'd be grateful if someone knew where this setting was. I looked in the brakes module and found options for the parking brake and hill hold buttons, but no the light in the dash.
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Post by dv52 (Australia) on Dec 8, 2019 0:33:13 GMT
Hmm....... I'm reading the dialogue with interest and I'm not sure of the official definitions, but my understanding is that Auto-hold and Hill-hold are related. However, the two are kind-of different because they separately target opposite ends of the car's travel. AUTO-hold targets the stopped behavior of the car -the function assures an automatic hold over the vehicle when stationary (regardless of the way the vehicle was brought to a stop). For auto-hold, the pressure required is calculated and set by the ABS module @ address hex03. After the car is stopped for a period of time, the system then changes over to the EPB (i.e. the holding torque is calculated and passed on from the ABS control unit to the EPB). Perhaps this is why the hand-brake light comes-on (green) and perhaps it changing to red is the point where the hex03 module transfers control to the EPB (if fitted) - not sure about this bit?
If the vehicle doesn't have EPB (i.e. a manual hand brake) - stuff might be different- perhaps?
On the other hand, Hill hold targets the way that the EPB releases itself when the vehicle is driven off. It's a complex system of balance between the EPB, the accelerator and clutch pedal. So the two functions do different things!! Don |
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Post by mrmeaty on Dec 8, 2019 15:40:03 GMT
I think you are right. I had previously changed "dynamic starting assist" in (03) brakes from "normal" to "early" for smoother transition when taking off while auto hold is active. Yesterday, I also changed "hill-start assistant" in the same (03) brakes module from "normal" to "early" (there is actually an app for this one but not the other) but haven't driven anywhere to see if there is a difference.
In either situation, i never get the EPB light in the dash to light up green and I think it's because I'm a manual, not dsg. But if it lights green in the dsg, there has to be a way to code it.
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Post by newty on Dec 9, 2019 9:55:17 GMT
Nah - the Green (P) means Autohold active. Autohold is a feature which needs the electric parking brake, while DSG is not madantory.
Autohold keeps (and increases) the pressure of the brakes while stationary, so you can take your foot of the brake without crawling forward (DSG) or rolling (manual).
This features uses the same hydraulic brake pressure cylinders which are equipped for ESP, XDS, ACC, FrontAssist and so on.
But why this is coupled to AutoHold? These hydraulic cyclinders are taking a taking quite a lot of power from the battery, plus they are not build for constant use - they tend to overheat after minutes of keeping auto hold active.
Thats where the EPB kicks in: When autohold stops working, the EPB will mechanically apply the parkingbrake to be able to release autohold while keeping the car safely stationary. Funfact: When this happens, the green (P) is not changed to a red one...
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Post by vwjap on Dec 9, 2019 10:32:46 GMT
Interesting newty, when you said it started overheating and the EPB would come on, I did think I’ve never seen the red light come on while holding
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Post by newty on Dec 9, 2019 10:40:47 GMT
Just had the chance this weekend: The light keeps showing green, but you can clearly hear the EPB working after about 15 minutes of autohold.
You probably will not notice this if Start/Stop is not enabled or having the radio on, as quietly sitting on the driver's seat waiting for this is not a very satisfying hobby ;-)
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Post by vwjap on Dec 9, 2019 12:00:20 GMT
15 minutes, geez you waited that long
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Post by newty on Dec 9, 2019 12:06:12 GMT
I didn't do it for science only. Had to stop at a flap bridge for a long time and I tend to leave the ignition on for heating. So I had nowhere to go anyways...
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Post by mrmeaty on Dec 10, 2019 12:30:56 GMT
If you are stopped and auto hold is active, then you turn off auto hold, that's when the light in the dash turns red because it "switches" to the EPB, at least in functionality.
Are there any manual drivers out there that get the green light in the dash when auto hold is on? Is it only on the DSG or did I mess something up in my car?
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Post by newty on Dec 11, 2019 1:45:14 GMT
Turning off auto hold while stationary by pressing the auto hold button will engage EPB,. The green (P) switches to a red one.
Turning off auto hold for one time only by using the release lever for EPB causes the (P) to disappear completely until you are braking again
All applies the same to manuals and dsgs (we have plenty of golfs at my employer)
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Post by mrmeaty on Dec 13, 2019 12:44:01 GMT
All applies the same to manuals and dsgs (we have plenty of golfs at my employer) Could you verify for me that the (P) does indeed light up green in the dash on a manual? I'm trying to see if the green (P) light is only on DSG or not. |
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Post by newty on Dec 14, 2019 12:35:09 GMT
All European Golfs, including manual shifted ones have a green (P) which shows Autohold working.
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Post by mrmeaty on Dec 16, 2019 12:32:31 GMT
Ah. I'm in the USA. I've heard a couple people say it does not light green, but it says it should in the User Manual. Just wondering if I should take it into the dealer to fix since I can't seem to find the code for it anywhere.
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Post by newty on Dec 16, 2019 13:08:30 GMT
If I am right, US Golfs still feature manual parking brakes. This is the dealbraker for Autohold and therefore for the green (P).
European cars not having an EPB do not show the green (P), so everything is normal.
Maybe they mix it up with the green foot in the upper right, which says "apply brake to switch gears" - this one is common to all cars.
The relevant bits to the green (P) are in the brakes module. Meich has documented tehm to be 11/1 and 19/6 for the green (P). Please do not change them unless you have an EPB retrofit and a matching ABS control unit - otherwise this will surely throw errors regarding wrong coding, missing epb control and so on.
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Post by mrmeaty on Dec 18, 2019 15:35:08 GMT
The GTI I think has a mechanical parking brake but my golf R has an electric parking brake with the button right next to the auto hold button. When my parking brake is on, it light up red in the dash, and I simply drive away and it automatically turns off.
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Post by newty on Dec 18, 2019 19:50:03 GMT
Good to know, this is new to me. Thought that EPBs are not built in the entire NAR Region. In that case you should see the green (P) when autohold is activated and engaged.
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Post by mrmeaty on Jan 28, 2020 12:39:50 GMT
So, I just noticed that I don't have a (P) symbol on my dash at all. When my parking brake is engaged, it is the word BRAKE in red. Those of you with the hill hold light, is that what you see? Or is it a symbol?
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Post by vwjap on Jan 28, 2020 14:32:59 GMT
Here you go I circled it in green, red on handbrake (as in picture) green on auto hold  |
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Post by mrmeaty on Jan 29, 2020 0:28:06 GMT
Yeah...I don't even have that light. I've got one that says "PARK"
Guess I can't do it on manual in US.
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