Hill Hold Assist

[Brooner]

i don't have the convenience pack so that's me fooked

[S4WON]

Oooh! Ive never tried to press memory with HHA active.. Ill try it! Thanks man

[Surrey Sam]

If you have a MY14>, you need to have the convenience pack for it to remember the last setting.

I have both and it still doesn't remember.

Have you switched HHA on and saved it in the door memory button?

Edited to add, don't forget you need to have your seatbelt on for the HHA to become active.

Thanks for the suggestion.

Yes I tried that as well yesterday, along with checking the key memory in the MMI menu in case the key was overriding the stored settings. Yet that damn little button, just doesn't wish to co-operate.

It's a weird quirk/fault, as the car remembers the ADS (Audi Drive Select) you last had selected upon starting the car up. Which I believe early cars didn't do? This was part of my reasoning to get a MY14 car, as the modules should really all be up to date with latest software. Perhaps that was a foolish thought.

[kmpowell]

Thanks for the suggestion.

Yes I tried that as well yesterday, along with checking the key memory in the MMI menu in case the key was overriding the stored settings. Yet that damn little button, just doesn't wish to co-operate.

It's a weird quirk/fault, as the car remembers the ADS (Audi Drive Select) you last had selected upon starting the car up. Which I believe early cars didn't do? This was part of my reasoning to get a MY14 car, as the modules should really all be up to date with latest software. Perhaps that was a foolish thought.

That's weird. I know it is to do with the convenience pack because we had a discussion about it last year, on here, and it was found that all those with MY14> and the convenience pack could save the setting in their door memory button.

Perhaps your MY14 car was built in MY13 and because of the crossover has older software?!?

[Surrey Sam]

Thanks for the suggestion.

Yes I tried that as well yesterday, along with checking the key memory in the MMI menu in case the key was overriding the stored settings. Yet that damn little button, just doesn't wish to co-operate.

It's a weird quirk/fault, as the car remembers the ADS (Audi Drive Select) you last had selected upon starting the car up. Which I believe early cars didn't do? This was part of my reasoning to get a MY14 car, as the modules should really all be up to date with latest software. Perhaps that was a foolish thought.

That's weird. I know it is to do with the convenience pack because we had a discussion about it last year, on here, and it was found that all those with MY14> and the convenience pack could save the setting in their door memory button.

Perhaps your MY14 car was built in MY13 and because of the crossover has older software?!?

I've just checked the build sticker and mine shows that it was built in April '14 and then registered June '14, so not sure that theory stacks up either?

***Edit*** - The only bit of tech mine doesn't have is the Advanced telephone prep with the sim card. It's still the later 3G+ MMI system with 7" display, so can't imagine that would change the HHA operation though.

[kmpowell]

Thanks for the suggestion.

Yes I tried that as well yesterday, along with checking the key memory in the MMI menu in case the key was overriding the stored settings. Yet that damn little button, just doesn't wish to co-operate.

It's a weird quirk/fault, as the car remembers the ADS (Audi Drive Select) you last had selected upon starting the car up. Which I believe early cars didn't do? This was part of my reasoning to get a MY14 car, as the modules should really all be up to date with latest software. Perhaps that was a foolish thought.

That's weird. I know it is to do with the convenience pack because we had a discussion about it last year, on here, and it was found that all those with MY14> and the convenience pack could save the setting in their door memory button.

Perhaps your MY14 car was built in MY13 and because of the crossover has older software?!?

I've just checked the build sticker and mine shows that it was built in April '14 and then registered June '14, so not sure that theory stacks up either?

***Edit*** - The only bit of tech mine doesn't have is the Advanced telephone prep with the sim card. It's still the later 3G+ MMI system with 7" display, so can't imagine that would change the HHA operation though.

April you say. From what I know MY14 started in build week 22. MY14 opened for ordering across all models in April 14, but (and it's a big but) each specific model did not be open for MY14 spec until its respective MY13 production schedules were full. So if the RS4 schedule wasn't full in April, April would have continued with MY13 specs until full.

So it may be your car was caught in a crossover, and your car isn't a My14...

[Surrey Sam]

Where did you get that info?

You may well be right but I'm inclined to disagree, unless you mean build week 22 in 2013? I've got a full PR code build sheet from another car that I was looking at buying; this one had a production date of Nov '13 & registered Jan '14 (63) and the model year is listed as a 2014 car on Audi's system.

[kmpowell]

Where did you get that info?

Here you go, the internal comm that was sent to dealers...

AU018613-Updated-19_14171.pdf

(567.2 KiB) Downloaded 63 times

[Surrey Sam]

Thanks again, that confirms my previous thoughts.

The document was created 19/03/2013 and the last sentence alludes to that time frame because of the pricing change. So you need to read the PDF as being a 2013 document and therefor MY14 came into production build week 22 of 2013 which ties in with late 2013 RS4 cars having the MY14 changes.

I'm more inclined to think that it's a later software version, on a particular module, that's causing this function difference.

[kmpowell]

Thanks again, that confirms my previous thoughts.

The document was created 19/03/2013 and the last sentence alludes to that time frame because of the pricing change. So you need to read the PDF as being a 2013 document and therefor MY14 came into production build week 22 of 2013 which ties in with late 2013 RS4 cars having the MY14 changes.

I'm more inclined to think that it's a later software version, on a particular module, that's causing this function difference.

Gotcha, makes sense. I read it slightly differently, but yes I can see the rationale now.

[Surrey Sam]

Ok, moving forward.

Last night I fired up VCDS and browsed through a load of modules, unfortunately there was nothing simply obvious like an un-ticked box. So thinking about it. I believe the HHA feature is a brake operated function, rather than part of the parking brake system - this led me to the ABS module. Looking through the VCDS log Ross posted previously, I can see that both Brooners and my own ABS modules/coding is not quite the same as his, which does remember the HHA status. I've shown the parts in bold lettering in the quotes below:

Address 03: ABS Brakes (J104)
Labels: None
Part No SW: 8T0 907 379 G HW: 8T0 907 379 G
Component: ESP8 quattro H09 0010
Revision: -------- Serial number: --------------
Coding: 346DEA
Shop #: WSC 06325 000 00000
VCID: 46835BC3F184D30F83-8012

Address 03: ABS Brakes (J104)
Labels: 8K0-907-379-V1.clb
Part No SW: 8T0 907 379 F HW: 8T0 907 379 F
Component: ESP8 quattro H09 0100
Revision: -------- Serial number: --------------
Coding: 346D6A
Shop #: WSC 06325 000 00000
VCID: 45818A92CCB7C7160D-8010

Now it crossed my mind to try and change the code to the one Ross has, but in the first long code help screen there is no option to change that 'bit'. However, if you try long code 2 this brings up another pop-up box and displays a few more 'bits' where you can then tick 'bit 7'. This will populate the code to match the one Ross has. I didn't try to load the code into my module, as I need the car right now and being over cautious, didn't fancy taking a small risk. This is also partly due to the VCDS software changing quite a lot from what I was familiar with from working on my previous B7 RS4. So just would like to get my head around the software before playing any further.

I could also be barking up the wrong tree?

[Outtlaw]

Cant help with the HHA but nice to see you've finally got an RS4 Sam.

[Surrey Sam]

Well I added this nuance to the dealer worksheet whilst my car is in having the gearbox sorted, I thought it would carry more weight under the same warranty job rather than booking it in separately. Apparently they don't know why this happens, so are in contact with Audi UK to try find out a solution.

I'll update the thread when I know more.

[Surrey Sam]

Ok the dealership called. They have been back and forth with suggestions from Audi UK technical who have been remotely connected to my car and investigating this over the last week, they have now arrived at a conclusion - The memory of HHA activation is a feature only for 2014 build week 22 cars and beyond, but they don't know why. Mine is apparently a build week 12 vehicle. So it's been referred back to Audi AG and the factory to investigate further - as I initially raised it as a fault, under the new gearbox I had fitted. That will take 2 weeks for a response

My feeling is that it's a later firmware feature of the ABS module.

[geoffdunk]

Late MY 2014 builds onwards have the memory of the HHA, the memory of it is nothing to do with the convenience pack apart form HHA being included, its down to the the later software. mines an MY2015 and the memory of HHA is a godsend after experiencing it on an older A4 without memory. Wife's old X5 also didn't memorise it, the new one does so BMW have corrected this too.