Audi e-tron Rear Upper Control Arm Bush
This Febi control arm bush is a replacement part for the upper control arm on the rear axle of the Audi e-tron, Audi Q4 e-tron, Audi Q8 e-tron and SQ8 e-tron. It suits both the left and right sides, and is listed for the front and middle mounting points of the upper arm. It cushions the joint between the control arm and the body or subframe, absorbing vibration while keeping the arm in position.
The bush is made of rubber and metal. Over time the rubber hardens, cracks or splits, and the arm starts to move more than it should, causing knocking from the rear over bumps and uneven rear tyre wear. The extra weight of an electric car loads the suspension bushes harder, and the instant torque of the motor adds to the strain.
The Febi part number is 171624. It measures 36 mm across the outside, with a 10 mm inner diameter and a height of 28 mm.
Febi is a brand of the bilstein group, a German parts maker that supplies replacement parts for cars and vans across the world. Each part is made to match the original in fit and function, so it fits without modification.
It fits the Audi e-tron (GE, 2018 to 2023), Audi e-tron Sportback (GE, 2019 to 2023), Audi Q4 e-tron (F4, 2021 on), Audi Q4 Sportback e-tron (F4, 2021 on), Audi Q8 e-tron (GE, 2022 to 2025) and Audi SQ8 e-tron (GE, 2022 to 2025). Compare the part number on your existing part with the numbers on this page before ordering.
Key Benefits
- Made to the original size and shape
- Rubber compound matched to the original
- Restores quiet, precise handling
- Cheaper than replacing the whole arm
Specifications
- Fitting position: rear axle, left and right, upper arm (front and middle mounts)
- Height or Thickness: 28 mm
- Inner Diameter: 10 mm
- Material: rubber / metal
- Outer Diameter: 36 mm
Replaces Audi part numbers 4M0 505 269, 1EA 505 397 D SK3, 4M0 505 323 G SK3, 8W0 505 323 F SK, 8W0 505 324 F SK and 8W0 505 465 B SK, as well as 1EA 505 397 B SK3 and 1EA 505 397 C SK3.
Installation
The old bush is pressed out of the control arm and the new one pressed in with a suitable press or bush tool. Tighten the bolts with the suspension at normal ride height so the rubber is not twisted. A wheel alignment check is recommended afterwards, and if the car has driver assistance systems, a sensor calibration may be needed. If you are unsure, have a qualified technician fit it.
Explore More Parts
- All Audi e-tron Parts
- All Audi Q4 e-tron Parts
- All Audi Q4 Sportback e-tron Parts
- All Audi Q8 e-tron Parts
- All Suspension Bushes
| Attribute | Value |
|---|---|
| Fitting position | rear axle, left and right, upper arm (front and middle mounts) |
| Height or Thickness | 28 mm |
| Inner Diameter | 10 mm |
| Material | rubber / metal |
| Outer Diameter | 36 mm |
Fits The Following Models
| Make | Model | Submodel |
|---|---|---|
| Audi | e-tron (GE) quattro 2018 – 2023 | (E) – 370 kW / 503 hp |
| Audi | e-tron (GE) quattro 2018 – 2023 | (E) – 230 kW / 313 hp |
| Audi | e-tron (GE) quattro 2018 – 2023 | (E) – 300 kW / 408 hp |
| Audi | e-tron (GE) Sportback quattro 2019 – 2023 | (E) – 370 kW / 503 hp |
| Audi | e-tron (GE) Sportback quattro 2019 – 2023 | (E) – 230 kW / 313 hp |
| Audi | e-tron (GE) Sportback quattro 2019 – 2023 | (E) – 300 kW / 408 hp |
| Audi | Q4 e-tron (F4) 2021 – | (E) – 210 kW / 286 hp |
| Audi | Q4 e-tron (F4) 2021 – | (E) – 150 kW / 204 hp |
| Audi | Q4 e-tron (F4) 2021 – | (E) – 125 kW / 170 hp |
| Audi | Q4 e-tron (F4) quattro 2021 – | (E) – 210 kW / 286 hp |
| Audi | Q4 e-tron (F4) quattro 2021 – | (E) – 250 kW / 340 hp |
| Audi | Q4 e-tron (F4) quattro 2021 – | (E) – 195 kW / 265 hp |
| Audi | Q4 e-tron (F4) quattro 2021 – | (E) – 220 kW / 299 hp |
| Audi | Q4 e-tron (F4) Sportback 2021 – | (E) – 150 kW / 204 hp |
| Audi | Q4 e-tron (F4) Sportback 2021 – | (E) – 125 kW / 170 hp |
| Audi | Q4 e-tron (F4) Sportback quattro 2021 – | (E) – 210 kW / 286 hp |
| Audi | Q4 e-tron (F4) Sportback quattro 2021 – | (E) – 250 kW / 340 hp |
| Audi | Q4 e-tron (F4) Sportback quattro 2021 – | (E) – 195 kW / 265 hp |
| Audi | Q4 e-tron (F4) Sportback quattro 2021 – | (E) – 220 kW / 299 hp |
| Audi | Q8 e-tron (GE) quattro 2022 – 2025 | (E) – 250 kW / 340 hp |
| Audi | Q8 e-tron (GE) quattro 2022 – 2025 | (E) – 300 kW / 408 hp |
| Audi | Q8 e-tron (GE) Sportback quattro 2022 – 2025 | (E) – 250 kW / 340 hp |
| Audi | Q8 e-tron (GE) Sportback quattro 2022 – 2025 | (E) – 300 kW / 408 hp |
| Audi | SQ8 e-tron (GE) quattro 2022 – 2025 | (E) – 370 kW / 503 hp |
| Audi | SQ8 e-tron (GE) Sportback quattro 2022 – 2025 | (E) – 370 kW / 503 hp |
Audi e-tron Rear Upper Control Arm Bush FAQs
Which part numbers does it replace?
It replaces 4M0 505 269, 1EA 505 397 D SK3, 4M0 505 323 G SK3, 8W0 505 323 F SK, 8W0 505 324 F SK, 8W0 505 465 B SK, 1EA 505 397 B SK3 and 1EA 505 397 C SK3.
Do I need a press to fit it?
Yes. The bush is a press fit in the control arm and needs a press or bush tool.
Should both sides be replaced?
It is good practice, as both sides have done the same mileage.
Do I need a wheel alignment?
A wheel alignment check is recommended after replacing suspension bushes.
Will it fit my Audi e-tron?
It fits the Audi e-tron (GE, 2018 to 2023), Audi e-tron Sportback (GE, 2019 to 2023), Audi Q4 e-tron (F4, 2021 on), Audi Q4 Sportback e-tron (F4, 2021 on), Audi Q8 e-tron (GE, 2022 to 2025) and Audi SQ8 e-tron (GE, 2022 to 2025). Compare the part number on your existing part.
Is this a genuine Audi part?
No. It is a quality replacement part made by the bilstein group to match the original in fit and function.


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