This Genuine OEM Audi Retrofit for the A4/S4/RS4 B9 is for Hill Hold Assist.
Hill Hold Assist provides added convienence when coming to a standstill or on a gradient. Instead of having to put the car in "Park" or manually put the handbrake on by lifting the parking brake button, as you come to a standstill the car will automatically apply the parking brake which is indicated by a green "P" on the Dashboard/Virtual Cockpit. To disengage you simply drive away.
Extremely convienent and helpful, especially in urban driving conditions with a lot of starting and stopping.
This retrofit takes approximately 2.5 hours to complete and completed at our work in Sussex, UK.
This retrofit costs £350 inc VAT supplied and fitted with Genuine OEM Audi parts with 2-Year warranty.
Contact us to discuss.
PHONE: 07737 137606
EMAIL: info@audiupgrades.co.uk
Business Update - 5th September 2025
Audi Upgrades is now based on the Isle of Wight. As a family-run business, this move reflects a personal change for us, and we want to be transparent about how it affects our services.
Going forward, we are focusing on offering a mobile fitting service, bringing retrofits directly to your home or workplace. This does require some planning and scheduling, but we’ll work closely with you to make the process as convenient as possible. Thank you for your continued support.
Please note: some of our retrofit listings on this website may still reference West Sussex. This is outdated information, and a refreshed website will be launching soon.
Please note: Appointments are strictly by advanced booking only