These instructions apply to the Audi Q3 Mk2 (F3) 2018-Present.
For other models, please choose your vehicle here.
The Audi Q3 (F3, 2018–Present) — including the Sportback and RS Q3 — uses an electronic parking brake with motor-driven rear calipers, controlled by a (P) switch on the centre console. To change the rear pads you put the EPB into service mode with a scan tool so the rear actuators retract electronically. There is no owner-only button sequence on the second-generation Q3 that opens the calipers.
What Service Mode Is and Why You Need It
Each rear caliper has an electric motor that screws a spindle onto the piston to clamp the pads. Thicker new pads will not fit until the spindle is wound fully back. Service mode commands both rear motors to retract so the piston can be pushed home by hand with the caliper off the disc.
Use VCDS, OBDeleven, or a generic £20–40 OBD EPB/SAS tool with a VAG “lining change / brake pad change” routine. The OBD socket is in the driver’s footwell. On the newer Q3 gateway some tools cannot open the routine under [53 — Parking Brake] directly and instead reach it through the ABS (03) module, which may need a security-access step first — let the tool’s “brake pad replacement” menu handle that.
Retracting the Caliper
- Park level, ignition on, engine off, battery charger connected — the EPB module is very voltage-sensitive on the F3.
- Turn Auto Hold off and release the parking brake.
- Run the tool’s Start lining change mode / brake pad replacement routine. The rear motors back the spindles off.
- Wait about 30 seconds after they stop, remove the caliper, and push the piston straight in by hand — no twisting.
Never Force the Pistons
Never clamp, wind or hand-force the rear pistons back on the Q3. The piston rides on the EPB motor’s spindle; forcing it strips the actuator gearbox or spindle thread and writes off the caliper. Run open/close routines only with the pads and caliper properly fitted to the disc. Let service mode retract the spindle electronically — then the piston pushes in with light, straight hand pressure only.
Exit and Bed-In
With new pads in and the caliper torqued, run the tool’s End lining change mode routine; on the Q3 the actuators usually cycle a few times to take up the gap to the new pads. Cycle the ignition, apply and release the EPB twice, and confirm the brake-warning light is out on the virtual cockpit. Then bed in with several moderate 30–40 mph stops, cooling between them, before hard use.
Frequently Asked Questions
Does the second-gen Q3 have an electronic parking brake?
Yes — the F3 Q3 (from 2018) uses the EPB across the range, including the Sportback and RS Q3, so a scan-tool service mode is required for a rear pad change.
My tool won’t open the EPB under module 53 — why?
The newer Q3 often routes the pad-change function through the ABS (03) module, sometimes behind a security-access code. Use the tool’s dedicated “brake pad replacement” menu, which handles the module and access automatically.
Can I use a cheap generic tool?
Yes, provided it offers a VAG pad-change / lining-change routine. A basic code reader cannot open the calipers.
Is the RS Q3 the same?
Yes — the same rear EPB motors and service-mode routine apply despite the larger brakes.
Parking-brake fault afterwards?
Re-run End lining change mode to fully close the calipers, then clear the code. Decode any stored fault on autodtcs.com.
If an EPB or ABS warning persists after the job and logs a code, look it up on autodtcs.com.
Independent guide — not affiliated with Audi. Always follow your official service manual and safety precautions. Read our full disclaimer.