Hey all,

new member as ChatGPT suggested this was the place to be for Audi owners 😂😎

So I’ve got an SQ7 with the auto handbrake hold and an S4 that doesn’t. Now normally those kind of extras don’t bother me but when I move from one car to the other, I have to adapt my driving slightly and given it’s the Brakes it’s a little bit frustrating.

I’ve spoken to a few retro places who are looking to charge about £500, but I’ve also seen some kits online for less than £100, I’m pretty handy with trim and electrics, but it does look a little complex pushing wires into other wires etc.

Coding I have the OBD11 so I’m ok there.

Has anyone bought a kit online and fitted it themselves and if so was it pretty straightforward or something you’d advise against? Plus, do you have a recommendation for which kit to buy.

I know I’m in a specific forum but just for peace of mind it’s a 2017 S4.

4 hours ago, pimmo2000 said:

Hey all,

new member as ChatGPT suggested this was the place to be for Audi owners 😂😎

So I’ve got an SQ7 with the auto handbrake hold and an S4 that doesn’t. Now normally those kind of extras don’t bother me but when I move from one car to the other, I have to adapt my driving slightly and given it’s the Brakes it’s a little bit frustrating.

I’ve spoken to a few retro places who are looking to charge about £500, but I’ve also seen some kits online for less than £100, I’m pretty handy with trim and electrics, but it does look a little complex pushing wires into other wires etc.

Coding I have the OBD11 so I’m ok there.

Has anyone bought a kit online and fitted it themselves and if so was it pretty straightforward or something you’d advise against? Plus, do you have a recommendation for which kit to buy.

I know I’m in a specific forum but just for peace of mind it’s a 2017 S4.

Hi if you are going to do this get a qualified company to do the work, that way if anything gets fried it won't be down to you, DIY can also mean Destroy IT Yourself, the wiring on these cars is beyond complex and if you make a mistake it will cost you dearly.

Steve.

1 hour ago, Stevey Y said:

Hi if you are going to do this get a qualified company to do the work, that way if anything gets fried it won't be down to you, DIY can also mean Destroy IT Yourself, the wiring on these cars is beyond complex and if you make a mistake it will cost you dearly.

Steve.

Thank you, do you happen to have any recommendations for decent places that don’t charge excessively?

I see some cheaper ones but am I bit unsure of their quality, but price doesn’t always mean delivery.

On 3/21/2026 at 6:50 PM, pimmo2000 said:

Thank you, do you happen to have any recommendations for decent places that don’t charge excessively?

I see some cheaper ones but am I bit unsure of their quality, but price doesn’t always mean delivery.

Hi it will be your choice finally you can always buy a kit and get a qualified auto electrician to fit it but from a personal point of view I would first consult an electrician to get an informed opinion and ask what he would recommend, these vehicles have a complex system of modules for each system within the car and a lot of the modules are very fragile and prone to fail when they encounter voltage spikes, I can't in all honesty suggest anyone to do the job as most of the module changes I ever had to do on my car were done by my garages electrician, thats in Essex.

Steve.

10 hours ago, Stevey Y said:

Hi it will be your choice finally you can always buy a kit and get a qualified auto electrician to fit it but from a personal point of view I would first consult an electrician to get an informed opinion and ask what he would recommend, these vehicles have a complex system of modules for each system within the car and a lot of the modules are very fragile and prone to fail when they encounter voltage spikes, I can't in all honesty suggest anyone to do the job as most of the module changes I ever had to do on my car were done by my garages electrician, thats in Essex.

Steve.

Thanks for the advice!

Autologics or audi retrofits might be able to do the work. Members have used them with other retrofits and been happy with their services.