The Q8 e-tron is a substantial facelift of the original Audi e-tron, built in Brussels from 2023 until production ended in February 2025. The 55 quattro uses a 114 kWh battery (106 kWh usable) with dual asynchronous motors, delivering around 370-490 km real-world range depending on speed and conditions. It slots between the smaller Q6 e-tron and the now-discontinued e-tron GT in Audi's electric lineup.· more· less
Production ended, long-term support uncertainMotor coolant seal risk persists
Buy if: You want a refined premium electric SUV with good range and can verify the motor coolant reservoirs and recall history before buying.
Avoid if: You are uncomfortable owning a discontinued model or cannot budget for potential motor or air suspension repairs outside the standard 2-year warranty.
Price & maintenance
Used price
€49,900
median asking price, typically 50,000 km
Typical range€46,900 – €54,000
Kilometres drivenAll
Maintenance cost
€850 – €1,600/year
at 15,000 km/year
Fixed costsservice, tyres, brakes€450 – €800 /yr
Risk bufferunplanned repairs€400 – €800 /yr
Price estimates are based on German asking prices. Prices and costs vary by vehicle condition and location.
Ownership costs
Maintenance assumes 15,000 km a year. Price estimates are based on German asking prices. Prices and costs vary by vehicle condition and location.
Used price
€49,900
Typically €46,900 – €54,000, at around 50,000 km.
Kilometres driven
Maintenance
€850 – €1,600per year
€450 – €800
service, tyres, brakes
€400 – €800
repair buffer
Price & maintenance
Used price
€54,900
median asking price, typically 30,000 km
Typical range€46,500 – €60,000
Maintenance cost
€850 – €1,600/year
at 15,000 km/year
Fixed costsservice, tyres, brakes€450 – €800 /yr
Risk bufferunplanned repairs€400 – €800 /yr
Price estimates are based on French asking prices. Prices and costs vary by vehicle condition and location.
Ownership costs
Maintenance assumes 15,000 km a year. Price estimates are based on French asking prices. Prices and costs vary by vehicle condition and location.
Rotor shaft seal deteriorates, allowing coolant into motor housing and requiring full motor replacement · more· less
The Q8 e-tron carries over the same asynchronous motor design from the original e-tron, which has a known weakness: a ceramic/graphite seal separating the motor coolant circuit from the electrical components can fail. When this happens, coolant enters the motor windings and destroys them within minutes. The motor must then be replaced entirely. On the original e-tron, this affected approximately 2% of vehicles, primarily 2019-2021 builds. Audi made refinements to the rear motor on the Q8 e-tron (14 coils vs 12), but the fundamental seal design remains. Forum reports of Q8 e-tron failures exist, though they appear less frequent than on the original. Audi extended the motor warranty to 10 years / 190,000 km in the USA, but this does not apply in Europe where the standard 2-year warranty is all that is offered. Check the small plastic catch reservoir next to each motor: it should be completely empty. Any coolant indicates an active leak.
Air suspension compressor or strut leak
up to €2,5002 of 7
Compressor failure or air spring leaks cause ride height faults and uneven stance · more· less
The Q8 e-tron 55 comes with adaptive air suspension as standard. The compressor can fail, causing the car to sag on all corners with a suspension malfunction warning. Individual air struts can also develop leaks, typically in cold or damp conditions, causing one corner to sit lower after overnight parking. The Q8 e-tron benefits from the revised compressor and updated control unit software introduced in August 2023, but the fundamental system remains the same as on the Q7 and Touareg. Compressor replacement costs approximately €950-1,200, while a single air strut runs €1,200-1,800. Regular driving rather than extended parking helps maintain seal condition. Listen for the compressor cycling frequently or running for extended periods after startup.
Brake disc warping and premature wear
up to €1,5003 of 7
Heavy regenerative braking means friction brakes sit unused, leading to corrosion and uneven pad deposits · more· less
A widely reported issue on both the e-tron and Q8 e-tron. Because regenerative braking handles most deceleration, the friction brakes are used infrequently. This causes surface rust to build up on the rotors, and when the brakes are applied forcefully, uneven pad material deposits create brake shudder. Multiple owners report needing brake disc replacements within 20,000-30,000 km despite minimal pad wear. The car's first few brake applications after a cold start intentionally disable regen to scrub the rotors clean, but this does not fully prevent the issue. Using the brakes more aggressively on occasion (such as manually braking on downhill stretches) helps prevent rotor glazing. A full rotor and pad replacement for one axle costs approximately €500-750 at an independent shop.
12V auxiliary battery drain
up to €5004 of 7
12V battery goes flat within 1-2 weeks if the car is not driven or plugged in · more· less
The 12V battery powers all ancillary systems and can drain within 7-14 days if the car is parked without being plugged in. The HV battery only charges the 12V when the car is in Ready mode or during HV charging. The myAudi app regularly polls the vehicle, accelerating drain. Scheduled charging with a long delay before the session starts can also flatten the 12V during the wait. When the 12V dies, the car becomes completely unresponsive despite a fully charged main battery. The recovery procedure requires a jump start or booster pack. Audi has released software updates to reduce standby drain on later builds, and starting climate control via the app can trigger the relay between HV and 12V batteries. Budget for periodic 12V battery replacement (every 3-4 years) and keep the car plugged in during extended parking.
MMI infotainment freezing and crashes
up to €1,5005 of 7
Dual touchscreens freeze, go black, or become unresponsive, sometimes requiring control unit replacement · more· less
Owners report intermittent MMI freezing, delayed touchscreen responsiveness, Bluetooth drops, and complete system crashes. The MIB3 platform can display indefinite loading messages. A quick fix is holding the power/volume knob until both screens reset. For persistent issues, a full system reboot (lock car, remove all keys, wait one hour) can help. Audi has released multiple software updates (versions 3900+), but some dealers report that major updates can take a full day and occasionally require control unit replacement (€800-1,500). The Q8 e-tron launched with more mature software than the original e-tron, but glitches persist. Ensuring all available updates are applied before purchase is essential.
DC fast charging handshake failures
up to €8006 of 7
Car fails to initiate DC charging sessions at certain stations, timing out during the communication phase · more· less
Some owners report that the car plugs in and the charger begins the handshake, but times out before energy flows. Level 2 AC charging typically works fine on the same car. The issue appears to be station-specific (older chargers more affected) and can sometimes be resolved by ensuring the CCS plug is fully seated, disabling Plug & Charge, or starting the session with an RFID card rather than the app. A full vehicle power cycle can also resolve intermittent communication faults. In rare cases, the on-board charger control module needs a software update or replacement (up to €800), but most instances are resolved without hardware changes.
Virtual mirror camera condensation (if equipped)
up to €1,2007 of 7
Camera-based side mirrors fog internally in cold/damp conditions, reducing visibility · more· less
The Q8 e-tron's virtual mirrors include a heating element connected to the rear window heater (an improvement over the original e-tron's unheated first-generation cameras). However, condensation issues persist in some units, particularly in persistently cold and humid conditions. Symptoms include foggy images and 'Visibility reduced' warnings. The heating element clears most condensation within 5 minutes of activation, but repeated condensation cycles can damage the camera sensor, requiring replacement at approximately €500-600 per unit. Cars with conventional glass mirrors are unaffected. If the car has virtual mirrors, check camera clarity in person, ideally on a cold morning.
Refined successor to a proven platform, but discontinuation adds uncertainty
The Q8 e-tron 55 is fundamentally the same car as the well-understood e-tron 55, with a larger battery (Samsung SDI cells only, no LG fire risk), revised motors, and more mature software. The motor coolant seal remains the most expensive potential failure, though it appears less common on Q8 e-tron builds than on early e-trons. Air suspension, 12V drain, and brake rotor issues are manageable with awareness. The biggest new concern is the February 2025 production end: while parts should remain available through the VAG network (shared components with Q7/Touareg), long-term software update support is uncertain, and resale values may be affected.
Service history
Complete Audi dealer or authorized EV specialist records. Verify all software updates applied and service performed per the annual interval.
Tires
Check tread depth, age (date codes), and uneven wear. The Q8 e-tron weighs 2,590 kg and wears tires faster than ICE SUVs. Budget for replacement every 30,000-40,000 km.
Body condition
Inspect for parking damage and wheel curb rash. 20-inch and 21-inch wheels are expensive to repair. Check panel gaps and paintwork.
Test drive (minimum 30 minutes)
Include both urban and highway driving. Test all driving modes, regenerative braking levels, and monitor for any warning messages or unusual behavior.
Specific for this vehicle
Inspect motor coolant catch reservoirs
Locate the small plastic catch reservoir next to each motor (front and rear). Both should be completely empty and dry. Any coolant present indicates an active seal leak requiring motor replacement.
Check air suspension operation
Cycle through all ride height settings via MMI. Listen for compressor noise. All four corners should sit level on flat ground. Check the car first thing in the morning for overnight sag.
Test both AC and DC charging
Plug in to both AC and DC chargers and confirm sessions start normally. DC charging should reach up to 170 kW peak. Watch for any error messages or handshake failures.
+ 5 more checksShow less
Brake test with firm pedal application
At safe speed, apply brakes firmly. Feel for any pulsing, shudder, or vibration through the pedal. This indicates warped rotors requiring replacement.
Check 12V battery voltage and age
Via MMI or multimeter, verify 12V battery reads 12.4V or above with car off. Ask when it was last replaced. If original and over 3 years old, budget for replacement.
Verify brake pedal recall (46P7/47DE) completed
Covers vehicles built Feb 2018 - Jun 2024. Contact Audi with VIN to confirm the brake booster screw torque has been verified.
Check battery state of health
Request an Audi battery health report or use OBD diagnostics. At 100,000 km expect 90-95% SoH with the Samsung SDI pack. Below 87% warrants investigation.
Test MMI system thoroughly
Use both touchscreens extensively. Test Bluetooth, navigation, Apple CarPlay/Android Auto, and climate controls for any freezing, lag, or error messages.
Recalls and Technical Service Bulletins
Brake pedal booster screw torque (46P7) - screw connecting pedal rod to booster actuator may loosen, reducing brake effectiveness. Builds Feb 2018 - Jun 2024, 96,180 vehicles globally.Critical - verify completed
Brake pressure line over-tightened (47DE) - connection may fail causing brake fluid leak. Builds May 2023 - Mar 2024.Verify completed
Rearview camera image delay/failure (90TV) - software error can prevent backup camera display when shifting to reverse. 2019-2026 Audi models.Verify completed
Front passenger occupant detection system (ODS) - electrical connection may loosen, deactivating airbag. 2023-2024 models.Verify completed
Driver side airbag mounting - may not be properly secured to seatback frame. 2023-2024 models.Verify completed
The brake pedal recall (46P7) is the most safety-critical: it affects nearly 100,000 vehicles globally including 14,601 in Germany. Contact Audi with the VIN to verify all recalls have been completed. Since production ended in February 2025, ensure all final software updates and recall work are documented.
Warranty Status
Factory warranty (2 years, no km limit)May still apply on 2024-2025 builds. Verify expiry date with VIN.
HV battery warranty (8 years / 160,000 km)Covers capacity below 70%. Samsung SDI cells. Check remaining years.
Motor warranty (EU)Standard 2 years only. No EU extension (US received 10 years / 190,000 km).
Rust perforation warranty (12 years)Check remaining coverage based on first registration date.
The most recent Q8 e-trons (late 2024 / early 2025 builds) may still be within factory warranty. However, the motor coolant seal failure is the most expensive potential issue and is only covered for 2 years in Europe. The HV battery has strong coverage (8 years), but ensure you verify remaining warranty with Audi using the VIN, especially given that production has ended.
Sources: Research draws on model-specific owner forums and owner communities, recall information from official authorities, German automotive press, and multiple workshop cost references cross-checked against each other.
This report is for informational purposes only and does not constitute professional advice. Estimates may be inaccurate. Always have a qualified specialist inspect the vehicle before purchase. We accept no liability for decisions made based on this information.
