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Used Audi Q4 e-tron battery health & degradation data
Last updated: · 6 sourced data points
Shares the VW Group MEB platform with the ID.4, Enyaq and Born. AVILOO's median at 100,000 km is about 92%, a little below the i4 and EQA. Sources: AVILOO GmbH.
Battery options: Q4 35 (52 kWh net) and Q4 40/45/50 (77 kWh net, 82 kWh gross); SUV and Sportback.
Estimate the expected battery health of a Q4 e-tron by mileage and age → (uses the data on this page; not a test)
Battery health by mileage (independent tests)
| Mileage | Median SoH | Range covering 99% of tested cars |
|---|---|---|
| 50,000 km (≈31,069 mi) | 95.0% | 88.4% – 97.9% |
| 100,000 km (≈62,137 mi) | 92.4% | 85.6% – 96.0% |
| 150,000 km (≈93,206 mi) | 90.6% | 83.2% – 94.9% |
Source: AVILOO GmbH, published 2026-09-03; n=17,814 tests of this model (all battery sizes grouped, global). Bar scale 75–100%.
Battery health vs mileage – all sources
Text summary of the chart
- AVILOO test: 3 points (from datasets of n=17,814 tests in total; dataset medians, lines show the 99% band), 90.6% to 95.0% between 50,000 and 150,000 km
- Owner-reported or listing (n=1): 3 points, 92.8% to 95.8% between 33,500 and 52,000 km
All data points
| Variant | Mileage | SoH | Type | Sample | Measured by | Source (date) |
|---|---|---|---|---|---|---|
| All battery variants grouped | 50,000 km ≈ 31,069 mi |
95.0% 99% band 88.4%–97.9% |
Median | n=17,814 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| All battery variants grouped | 100,000 km ≈ 62,137 mi |
92.4% 99% band 85.6%–96.0% |
Median | n=17,814 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| All battery variants grouped | 150,000 km ≈ 93,206 mi |
90.6% 99% band 83.2%–94.9% |
Median | n=17,814 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| Q4 50 e-tron quattro 77 kWh (reg. 01/2022) | 33,500 km ≈ 20,816 mi |
92.8% | Single car (owner-reported) | n=1 | Owner-read max energy content vs new (OBD) | MOTOR-TALK forum (posts dated 2024-10-07 to 2026-02-12) Owner-reported, n=1. 2024-10-07: 71.1 kWh vs 76.6 kWh net. |
| Q4 40 e-tron 77 kWh (built 05/2022) | 47,800 km ≈ 29,702 mi |
95.8% | Single car (owner-reported) | n=1 | Owner-read max energy content vs new (OBD) | MOTOR-TALK forum (posts dated 2024-10-07 to 2026-02-12) Owner-reported, n=1. 2026-02-11: 73.8 kWh vs 77 kWh net; charges mostly to 80%. |
| Q4 50 e-tron 77 kWh (reg. 07/2021) | 52,000 km ≈ 32,311 mi |
94.0% | Single car (owner-reported) | n=1 | Owner-read max energy content vs new (OBD) | MOTOR-TALK forum (posts dated 2024-10-07 to 2026-02-12) Owner-reported, n=1. 2024-10-07: 72.35 kWh, owner-stated 94%. |
Data gaps: Three owner readings so far, all under 55,000 km.
What to check when buying a used Q4 e-tron
- Owners divide the BMS "maximum energy content" (Car Scanner/OBD) by the net capacity when new (about 77 kWh for the large pack); the figure moves with temperature and charge level. (MOTOR-TALK forum)
- Ask for the Audi battery health certificate if buying Approved Used. (Audi UK)
- Compare any test result with the ranges above and with the ADAC rule of thumb: at least 92% at 50,000 km, 88% at 100,000 km, 84% at 150,000 km, 80% at 200,000 km. (ADAC)
Battery warranty (UK)
Audi UK: battery covered for 8 years or 100,000 miles; replacement or repair if capacity falls below 70% as measured by an Audi Centre. Audi Approved Used electric cars under 8 years old come with a battery health certificate. Source: Audi UK, checked 2026-10-20. Always confirm the terms for the specific car with the manufacturer.
Check how much battery warranty a Q4 e-tron has left → (by registration date and mileage)
Sources used on this page
3 sources · 6 data points: 3 from non-AVILOO methods, 3 measured with AVILOO tests.
- Large test datasets (1 source, 3 data points): AVILOO GmbH
- Owner-reported (1 source, 3 data points): MOTOR-TALK forum
- Manufacturer (1 source): Audi UK
Owner-reported and listing values are single cars (n=1) read from the car, an app or an OBD tool – useful examples, not averages. Range-retention figures (Recurrent) measure range, not capacity. Full details: methodology & all sources.
Get this specific car tested
Ad disclosure: we are not currently paid by these providers. If that changes, the specific links will be marked "(paid link)" and this box labelled "Ad". How we make money.
Model averages can't tell you about the car in front of you. An independent battery test (typically a short OBD plug-in test, some remote) gives an SoH figure and often a certificate you can use when negotiating.
- AVILOO – Independent OBD-based battery test (FLASH / Premium) with certificate; available via partners in the UK and EU.
- Generational – UK OBD plug-in test with certificate (SoH, range, remaining warranty, cell balance); sold through dealers and independent mobile testers.
- Moba – Postal OBD kit: you run the test yourself and post the box back for a digital battery certificate (Europe – check vehicle support and delivery country).
Prices change – check the provider's site. Provider names are used for identification only.
FAQ
What battery health is normal for a used Audi Q4 e-tron?
In AVILOO's 2026 report (independent tests, all battery sizes grouped) the median SoH was 95.0% at 50,000 km, 92.4% at 100,000 km and 90.6% at 150,000 km. 99% of tested cars at 100,000 km fell between 85.6% and 96.0%.
What is the Audi Q4 e-tron battery warranty in the UK?
Audi UK: battery covered for 8 years or 100,000 miles; replacement or repair if capacity falls below 70% as measured by an Audi Centre. Audi Approved Used electric cars under 8 years old come with a battery health certificate.
How can I check the battery of a specific Audi Q4 e-tron?
Use an independent battery test (OBD-based or remote) and compare the result with the ranges on this page. Model averages cannot tell you the condition of one specific car.
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