Audi Q8 e-tron vs. BMW iX: Complete comparison 2026

The Audi Q8 e-tron, formerly known simply as the Audi e-tron, is a robust and luxurious electric SUV that brought traditional German elegance combined with advanced all-wheel drive to the market. Standing against it is the BMW iX, the uncompromising technological flagship of the Munich-based automaker, which has attracted attention since its launch with its bold futuristic design and innovative lightweight construction. In the following comparison, we will take a detailed look at which of these two premium Bavarian rivals represents an overall better and more sensible choice for those interested in a modern used electric car.

When looking at the exterior dimensions of both premium electric SUVs, you quickly find that even though they share a similar market segment, the BMW iX is slightly larger in all key aspects than the Audi Q8 e-tron. The BMW iX measures 4953 mm in length, which is 38 mm more than the Audi Q8 e-tron, which maintains a length of 4915 mm. This more compact body on the Audi brings a slight advantage when maneuvering in narrow city streets or when trying to fit into tighter parking spaces. Conversely, the greater length of the Munich competitor gives the car a more massive and dominant stance on the road. From a practical standpoint, the length of the BMW promises more interior spaciousness, while with the Audi, you benefit from slightly easier parking in everyday traffic.

The width and height of both cars also favor the BMW iX, which, with a base width of 1967 mm and a height reaching up to 1696 mm, appears as a more massive and airy representative of the class. The Audi Q8 e-tron is noticeably narrower (typically 1937 mm) and overall lower (up to 1633 mm in the standard version, while the more dynamic Sportback body drops even to 1619 mm). The lower silhouette of the Audi brings undeniable advantages in aerodynamics, which has a direct positive impact on energy consumption and range, especially during smooth highway driving. BMW, however, counters with a more generous view from a higher position and the feeling of a genuine, robust SUV. The decision here breaks down purely to preferences – those interested in more elegant aerodynamics will choose the Audi, while fans of an unmistakable appearance will reach for the BMW.

Probably the most fundamental parameter defining the cabin itself is the wheelbase. The BMW iX boasts exactly 3000 mm, while the Audi Q8 e-tron has a significantly shorter wheelbase of 2928 mm. The 72 mm difference is truly noticeable in the interior, which will be appreciated especially by tall passengers in the rear seats, who gain more knee room. The longer wheelbase of the BMW also benefits directional stability and ensures even smoother handling of bumps on straight highways, albeit at the cost of a slight reduction in maneuverability in tight spaces. However, if you are looking for maximum comfort on long journeys for your next car, the extended wheelbase gives the BMW a clear lead in this regard.

Trunk capacity is often a key parameter for families and demanding travelers when it comes to large premium electric SUVs like the Audi Q8 e-tron and BMW iX. Whether you're planning a long family vacation or just need to regularly transport bulky sports equipment, every extra liter plays a crucial role. In this premium automotive class, vehicles are expected to provide not only a perfectly soundproofed and luxurious ride but also maximum everyday practicality without unnecessary compromises to support an active lifestyle.

Looking at the specific numbers, the more traditionally styled Audi Q8 e-tron (SUV version) offers a solid trunk volume of 569 liters in its standard five-seat configuration. If you prefer the sportier and more aerodynamic body shape of the Q8 Sportback e-tron version, you'll have to settle for a slightly reduced capacity of 528 liters due to the sloping roofline. The competing BMW iX has a slightly smaller trunk in its basic configuration, specifically 500 liters. Thus, the classic Audi Q8 e-tron offers space for a few extra suitcases in its standard setup, which is more than enough for weekend shopping or a longer vacation with the whole family.

However, the tables turn significantly when you need to carry truly bulky cargo and fold down the rear seats. In that case, the BMW iX offers an excellent 1,750 liters, noticeably outperforming its competitor from Ingolstadt. The Audi Q8 e-tron reaches 1,637 liters with the rear backrests folded (or 1,567 liters for the more stylish Sportback version). This difference in maximum capacity makes the BMW iX a slightly more capable helper for moving larger items. Ultimately, the choice depends on your priorities: Audi excels in trunk size for everyday family use with five people, while BMW offers better maximum utility space after transforming the interior.

The difference in braked trailer weight between the Audi Q8 e-tron and BMW iX is one of the key factors for customers considering a switch to a fully electric SUV but who do not want to lose the ability to tow heavier loads. Towing capacity directly affects the overall practicality of the vehicle and its flexible use for both family and hobbies.

The Audi Q8 e-tron from the GE generation (relevant models produced from 2023 onwards) offers a maximum braked trailer weight of 1,800 kg for all its purely electric versions. In contrast, the competing BMW iX (I20 generation) absolutely dominates its class in this regard. Across all its available powertrains, from the xDrive40 model to the premium M60 and M70 versions, it boasts a towing capacity of exactly 2,500 kg. For unbraked trailers, both manufacturers adhere to the maximum permitted legislative standard of 750 kg. While purely electric variants maintain these constant values across all trim levels, it is worth noting that older plug-in hybrid versions of the Audi Q8 family (TFSI e, 4M generation) offered different capacities with significantly higher limits reaching up to 3,500 kg, thanks to their internal combustion engine foundation.

In practice, this 700 kg difference between the two electric vehicles represents completely different capabilities. With its 1,800 kg, the Audi Q8 e-tron will cover most common needs without hesitation – it can easily handle transporting a smaller boat or provide space for several extra suitcases in a trailer, which is more than enough for weekend shopping or a longer holiday with a lighter caravan. However, the BMW iX, with its generous 2.5-tonne reserve, is aimed at more demanding drivers who need to tow a heavy twin-axle caravan, a trailer with construction machinery, or a full-sized horsebox.

If you are purchasing the vehicle only for occasional trips with a light load, the limits offered by the Audi Q8 e-tron will be perfectly adequate. However, if uncompromising towing capacity is a priority for you, the BMW iX is the clear favorite by a significant margin, ensuring you are not limited in your transport plans.

Both models, the Audi Q8 e-tron and BMW iX, represent the absolute pinnacle of the premium electric SUV segment, yet they approach their powertrains with a slightly different philosophy, which is crucial for second-hand car buyers. While the Audi Q8 e-tron (the facelifted successor to the original e-tron model from 2023–2025) relies on the proven smoothness and quiet comfort of two asynchronous electric motors with an emphasis on gentle and gradual power delivery, the BMW iX (generation I20, produced since 2021) utilizes advanced fifth-generation eDrive technology with synchronous motors. From a dynamics perspective, the power distribution is quite clear. Audi's performance spectrum starts at a solid 250 kW for the 50 e-tron version and reaches 300 kW for the 55 e-tron variant. In contrast, the Bavarian automaker offers a much wider range, from the entry-level 240 kW in the xDrive40 version to a brutal 455 kW and torque exceeding 1000 Nm in the M60 version. Thus, the BMW iX clearly reigns supreme for performance-oriented drivers who value aggressive acceleration and sporty emotions. Conversely, Audi is preferred by drivers who demand absolute power linearity, a harmonious ride, and unwavering composure on long journeys.

Powertrains: Audi Q8 e-tron (generation GE)

The range of powertrains for the Audi Q8 e-tron (generation GE) is built very rationally, and on the market for three- to four-year-old used cars, you will find exclusively dual-motor configurations with quattro all-wheel drive. The base is the 50 e-tron version with 250 kW, which shares a massive torque value of 664 Nm with the more powerful 55 e-tron (300 kW). Although both powertrains accelerate very briskly and rely on a single-speed transmission, the 55 version reduces the 0 to 100 km/h acceleration from exactly 6 to 5.6 seconds and, more importantly, adds a significantly larger battery. However, the most important fact for those interested in a used car from this period remains that production of these classic 50 and 55 powertrains (as well as the entire GE generation) was definitively ended in February 2025. As they can no longer be purchased as new vehicles from dealers, they have become highly relevant and exclusive goods exclusively for the secondary market.

Powertrains: BMW iX (generation I20)

The electric palette of the Bavarian BMW iX targets a wider audience and especially fans of top-tier dynamic parameters. The foundation in the four-year-old used car market is the xDrive40 version, providing a system output of 240 kW and 630 Nm. A middle, yet breathtaking path with an excellent power-to-range ratio is the widely represented xDrive50 model, boasting a massive 385 kW and 765 Nm of torque. The top of the range in previous years was represented by the M-division tuned iX M60, which sends a crushing 455 kW and 1015 Nm of torque to the road. All mentioned versions utilize intelligent all-wheel drive and a single-speed reduction gearbox. As historical availability data confirms, these most widespread versions (xDrive40, xDrive50, and M60) were produced only until January 2025, when they were completely withdrawn from the official offering. They were replaced by newer specifications such as the xDrive45 or M70, meaning that the models representing the golden mean of the used car market for this age have become a closed, yet all the more attractive chapter in the model's history.

Choosing the right powertrain is absolutely crucial for long-term satisfaction with large premium electric SUVs. Our recommendations are based on a combination of real-world range, everyday efficiency, reliability, and user feedback after several years of ownership. While the base motorizations of both models may tempt with a more favorable purchase price, in practice, you will soon encounter the limits of smaller batteries, which represent a significant compromise for such large and heavy cars. For the market of approximately four-year-old used cars, we therefore focus on variants that provide a full experience without limitations.

For the Audi Q8 e-tron, we recommend: Q8 e-tron 55 quattro (300 kW)

From the current selection of late-model used cars, the 55 quattro version is clearly the best and most rational choice. It is important to note that production of this specific specification (GE generation) took place primarily between February 2023 and February 2025, when it replaced the previous model labeled simply as the Audi e-tron. Today, you can no longer purchase this original 55 quattro version as a brand-new car, but it is an ideal choice on the used car market.

• Why it's the best: Compared to the base 50 version with a smaller battery, the 55 model offers a significantly larger battery (106 kWh usable capacity). For a vehicle whose curb weight safely exceeds 2.5 tons, a larger battery is a necessity to achieve a meaningful range, which in real-world combined driving comfortably exceeds the 400-kilometer mark.
• Technical advantages: The strongest weapon of this powertrain is its top-tier fast-charging curve. The Audi can draw high power for a very long time and doesn't drop off as quickly as the competition, which fundamentally shortens downtime on long trips. Two electric motors with a combined output of 300 kW (408 hp) then provide a perfectly confident and smooth pull.
• Risks and what to watch out for: The Audi Q8 e-tron has slightly higher aerodynamic drag and consumption at highway speeds compared to its direct rivals. With used cars, always thoroughly check the condition of the braking system – because the car recuperates most kinetic energy back into the battery, conventional steel brake discs often suffer from surface corrosion due to insufficient use. Regular forceful braking in neutral (N mode) helps.
• Who it's for: Ideal for drivers who prefer maximum comfort, highway mile-munchers, and those looking for a traditional-looking luxury SUV seasoned with a quiet electric drive.

For the BMW iX, we recommend: iX xDrive50 (385 kW)

In the case of the Munich representative, the xDrive50 model represents the perfect intersection of performance and range. From the model year database, we know that this specific version was produced from November 2021 to January 2025, when it was replaced in the lineup by newer specifications. It is currently among the most sought-after and logical choices among used BMW iX cars on the market.

• Why it's the best: The base xDrive40 model has a usable battery capacity of only 71 kWh, which is simply not enough for a large family SUV intended for longer trips. The xDrive50 version, on the other hand, offers a massive 105.2 kWh battery. Combined with excellent thermal management and BMW's unrivaled aerodynamics, this car commonly achieves a real-world range of over 500 kilometers, even in less favorable conditions.
• Technical advantages: The 385 kW (523 hp) fifth-generation (eDrive) powertrain stands out because it does not use permanent magnet motors, thereby eliminating dependence on rare earth elements while maintaining extraordinary efficiency. The car's real-world consumption is fascinatingly low for its size and weight.
• Risks and what to watch out for: The BMW iX in the xDrive50 version is packed to the brim with modern technology, which brings certain pitfalls for long-term ownership. During a test drive, carefully check the function of the air suspension and integral active steering (rear-wheel steering). Any strange compressor noises or uneven ride height can signal a very expensive repair. Also, focus on the car's software update history.
• Who it's for: It is the perfect car for tech enthusiasts and demanding families traveling long distances. It will appeal to drivers who want massive power but don't want to spend unnecessary time at charging stations.

Official consumption figures provided by manufacturers according to the WLTP standard and real-world road experience often differ significantly, and this is doubly true for large electric SUVs with a large frontal area and high weight. While paper specifications for both models often promise consumption starting below the 20 kWh/100 km mark, physics and highway speeds take their toll in the real world. For the most accurate comparison of models relevant to the used car market aged approximately 1 to 4 years (the BMW iX I20 generation and the comparably young Audi Q8 e-tron GE), we looked at user data from the popular crowdsourcing portal Spritmonitor.de. It clearly shows how efficiently these heavy electric cruisers manage energy in everyday operation.

Looking at the data above, it is clear that vehicles built primarily as electric cars on a dedicated platform have a noticeable advantage. Thanks to more sophisticated aerodynamics and advanced drive management, the BMW iX is more efficient in all comparable versions than the Audi Q8 e-tron, whose architecture is based on a modified platform originally intended for internal combustion engines. An interesting and surprising finding is that choosing a larger battery and a more powerful powertrain (for example, moving from the xDrive40 to the xDrive50 version, or from the e-tron 50 to the 55 in the case of Audi) does not mean any drastic increase in energy consumption. Even though the more powerful versions carry extra kilograms of batteries, the increase is only about 1 to 2 kWh, which, in the context of a much longer total range, makes these variants the best and most efficient choices.

For the average user, a clear conclusion follows from these values. If you are a city and suburban driver moving mostly at lower speeds, both cars can make excellent use of recuperation, and the differences in consumption almost disappear. However, a completely different situation arises for drivers covering long highway distances. Here, the BMW iX benefits from its excellent aerodynamics, and its overall efficiency is reflected not only in slightly lower operating costs but, above all, in time savings. A difference of about 2 to 3 kWh per 100 kilometers in favor of the BMW iX means less stress on long journeys, fewer forced stops, and shorter downtime at fast-charging stations.

In conclusion, it must be noted that although for these premium and expensive SUVs, saving a few hundred crowns on "fuel" is usually not the main argument for purchase, in the realm of electric vehicles, consumption is of fundamental importance. Efficiency directly determines the most important thing – real-world range and user comfort on the road. From this perspective, consumption is the decisive factor that, in this direct duel, clearly plays in favor of the more innovative BMW iX.

Used Car Price Comparison: Luxury EVs After Initial Depreciation

The market for premium electric SUVs offers buyers of roughly four-year-old used cars (2022 and 2023 models) a huge advantage in the form of a steep decline in original value. Cars that, when new with extensive optional equipment, commonly exceeded the €82,000 to €103,000 mark can today be purchased for amounts comparable to new mid-range vehicles.

Audi Q8 e-tron: Conservative Certainty at a More Affordable Price

The Audi Q8 e-tron (which replaced and renamed the original e-tron model as part of a facelift at the turn of 2022 and 2023) represents a more traditionally styled SUV. On the used car market for vehicles around three to four years old, you can observe price ranges depending primarily on total battery capacity and equipment level.

• 50 e-tron version (smaller battery): The cheapest well-maintained examples under the newer Q8 designation start at around €47,000.
• 55 e-tron version (larger battery, ideal choice): In the case of the more powerful specification with a longer real-world range, prices most often range between €53,000 and €66,000 for cars in attractive S-line trim with mileage up to 80,000 km. If you were looking for an even cheaper alternative, the original pre-facelift versions (sold only as the Audi e-tron until 2022) have long since broken the €41,000 barrier.

BMW iX: Technological Avant-Garde for a Fraction of the Original Price

The BMW iX entered the market in late 2021 as a physical demonstration of the Munich automaker's future technologies. Its polarizing design and highly modern interior concept mean that the initial price drop was relatively rapid despite excellent driving characteristics. Today, this creates a great opportunity for those interested in a used car from 2021 or 2022.

• Base xDrive40 version: These models, which are completely sufficient in terms of performance and range for the vast majority of drivers, can today be found among roughly four-year-old vehicles with a very tempting average price of around €39,000 to €45,000.
• More powerful xDrive50 version (larger battery, over 500 hp): If you want to use the full potential of this "living room on wheels" and require uncompromising highway range, expect an investment in the range of €51,000 to €62,000. Although the original purchase price at dealers was significantly higher than the base version, this price jump is very pleasantly erased on the secondary used car market.

Overview of Estimated Used Car Prices (3–4 Years Old)

Note: Prices are indicative and reflect the current state of the used car market. The final price always depends on the specific technical condition, service history, and level of optional equipment.

From the perspective of percentage value retention, the Audi Q8 e-tron performs slightly better, which is largely due to its less controversial design and the slightly more recent launch date of the facelifted version. For both cars, however, the most expensive part of the depreciation curve has been paid by the previous owner, and for you as a buyer, both cars represent a rational purchase on the secondary market with an excellent price/performance ratio.

Both compared vehicles received the maximum possible five-star rating in independent Euro NCAP safety tests. However, for used cars, it is always crucial to put these results into context and consider the specific year of testing. The Euro NCAP consortium's methodology and test protocols are constantly evolving and becoming significantly stricter over time. While older tests emphasized passive safety and the strength of the body structure itself, newer ones assess active accident prevention systems much more rigorously. For example, new frontal collision simulations, advanced detection of cyclists and pedestrians, or the vehicle's ability to react to hazards in complex intersection scenarios are examined. For this reason, percentage results from different years cannot be considered absolutely comparable.

The Audi Q8 e-tron, which was tested by Euro NCAP before its facelift under its original name, Audi e-tron, underwent safety testing in 2019. Under the methodologies of that time, the car demonstrated excellent protection for adult occupants, achieving a high score of 91%, and a very good level of protection for child passengers with a result of 85%. Ratings for assistance systems and protection of vulnerable road users reached 76% and 71%, respectively. Although the structural safety of this car is undoubtedly top-notch, from today's perspective, the certification corresponds to older protocols. The assistance systems are reliable, but they were not tested according to the most demanding scenarios that the organization introduced after 2020.

The BMW iX, on the other hand, headed for the barriers in 2021, a time when significantly stricter and more complex testing protocols were in effect. Despite these more demanding standards, the iX managed to excel. It maintained a 91% success rate in adult occupant protection and improved child protection to 87%. The presence of more modern sensors and more sophisticated software was clearly evident here – the car received an excellent 81% for safety assistance systems and 73% for the protection of vulnerable road users. The innovative body, combining an aluminum space frame with a carbon core (Carbon Cage) for passenger compartment protection, clearly demonstrated its above-average effectiveness even under these new rules.

In the final comparison, it is evident that both models provide first-class occupant protection in an accident and represent a perfectly safe choice for family travel. However, given the more recent testing year and the excellent percentage results achieved under more demanding conditions, the BMW iX offers an objectively more modern and comprehensive safety package. Its assistance systems were certified according to a stricter generation of test protocols, which for those interested in a used car means technologically more advanced security in today's heavy traffic.

In addition to standard equipment, each model offers several unique features that can be decisive for the customer and clearly define the different approaches of both brands to added value, innovation, and everyday comfort.

Audi Q8 e-tron: Advantage through technology and thoughtful ergonomics

• Virtual exterior mirrors: An iconic feature with which Audi replaces traditional mirrors upon request. High-resolution cameras transmit the image to OLED displays elegantly integrated into the doors. This solution significantly improves airflow, extends range, and reduces aerodynamic noise in the cabin.
• Charging ports on both sides: An extremely practical detail for daily use. The car is factory-equipped with AC charging connectors on both the left and right front fenders (DC fast charging is always on the driver's side). This completely eliminates the need for complex maneuvering at public charging stations and home wallboxes.
• Digital Matrix LED lighting technology: These high-end headlights essentially function as high-resolution video projectors. On the highway, they can project a light carpet in front of the car, including guidance lanes for easier lane keeping, and offer sophisticated light animations when unlocking.
• Top-of-the-line SQ8 versions with triple electric motors: For more sport-oriented drivers, Audi offers a unique powertrain layout with three motors (one at the front, two at the rear). This allows for instantaneous and fully independent torque vectoring on the rear axle for maximum agility in corners.
• Standard air suspension: Every Q8 e-tron features adaptive air suspension. The system can automatically change the vehicle's ride height by several centimeters depending on speed and the selected driving mode, optimizing aerodynamics on the highway and increasing comfort on rough roads.

BMW iX: The "Shy Tech" concept and a living room on wheels

• Shy Tech philosophy (Hidden technologies): A fundamental design direction for the BMW iX, where smart functions remain in the background until needed. Typical examples include the washer fluid filler hidden directly under the flip-up BMW logo on the hood, the rear camera cleaning nozzle integrated into the emblem, or invisibly built-in speakers in the headrests.
• Self-healing front grille: The large front kidneys do not serve for cooling but function as an intelligent panel covering the radars and sensors of the assistance systems. They are coated with a special polyurethane layer, thanks to which minor scratches (e.g., from stones) disappear on their own when exposed to heat.
• Carbon Cage construction: When you open the doors, you will notice dark structures – BMW extensively uses carbon fiber reinforced plastics (CFRP) in this model. This hi-tech construction, more commonly known from racing cars, drastically increases the body's torsional rigidity while compensating for the weight of the batteries.
• Electrochromic panoramic roof: Instead of a traditional and heavy mechanical blind, the glass roof uses a layer of liquid crystals. With the press of a button or a voice command, the glass can turn opaque within a fraction of a second, shading the interior from the sun.
• Crystal controls and 4D audio: The iX interior focuses on cozy luxury. For an additional fee, you can get seat controls, the iDrive rotary controller, and the gear selector made of cut glass. Furthermore, the top-of-the-line Bowers & Wilkins audio system adds bass "shakers" integrated directly into the seats, allowing you to not only listen to the music but also feel it physically.

The Audi Q8 e-tron will primarily appeal to more conservative drivers who want a premium electric vehicle without having to learn entirely new user habits. Thanks to the excellent silence on board, top-tier materials, and smooth air suspension, it is a perfect cruiser for comfortably covering long distances.

The BMW iX is the perfect choice for tech enthusiasts and innovators looking for maximum range, efficiency, and a fresh design in a luxury package. It impresses primarily with its bold approach to shaping and materials and fantastic driving characteristics, while its cabin offers a completely unique visual and spatial experience.

Based on long-term owner experience, service reports, recalls, and expert inspections, we have compiled an overview of the most common problems of both premium electric SUVs. Given the advanced technology and high costs of potential repairs, a detailed Independent technical inspection of the car should always take place before purchasing such a used car.

Audi Q8 e-tron (including older versions originally sold only under the e-tron designation) faces several recurring faults, mainly concerning software and specific mechanical parts.

• Electronics and infotainment: The MMI (Multi Media Interface) system tends to freeze occasionally, experience sound dropouts, or black screens. Problems often require a hard restart or a software update at a service center. A common fault that can completely immobilize the car is also the failure or rapid discharge of the classic 12V battery.
• Powertrain: In earlier model years, a serious problem appeared with coolant leaking into the front electric motor. This problem can lead to complete destruction of the motor and is a key point focused on by the Comprehensive Car Inspection.
• Chassis and body: Many owners report issues with motorized charging port covers, which can get stuck due to dirt or moisture. Another risk factor is the air suspension, where compressors and bellows can wear out faster due to the car's enormous weight.
• Brakes: During the transition between regenerative and mechanical braking, unpleasant brake squealing or unnatural brake pedal resistance may occur.

BMW iX is a more modern platform and so far shows high reliability in terms of mechanics, however, even it has "teething troubles," mostly of an electronic and software nature.

• Software and infotainment: The iDrive 8 operating system occasionally suffers from outages, spontaneous restarts, or slower responses after starting. Most of these problems are, however, solved wirelessly by BMW in the form of so-called OTA (Over-the-Air) updates.
• Drive and electronics: Some owners have noted random error messages regarding drive failure ("Drivetrain malfunction"). Usually, it's just a software glitch caused by incorrect evaluation by sensors, yet every such error requires diagnostics.
• Chassis and tires: Due to high torque and weight exceeding 2.5 tons, very fast and sometimes uneven tire wear occurs. This can be a hidden cost that a Physical inspection of the used car will reveal.
• Interior and body: A specific problem of the iX is the electronic door handles, which can freeze in frost or not respond to touch, which can prevent comfortable access to the car.

When buying a used car, a thorough inspection is crucial. Here are some specific points to focus on for these two models. Before making a final decision, it is always worth having a detailed physical inspection of the used car and a professional independent CarAudit, which will reveal any expensive hidden defects.

When choosing an Audi Q8 e-tron:

• Coolant ingress into electric motors: This is one of the most well-known and costly issues with older models in the e-tron family. A faulty seal can allow coolant to leak directly into the internals of the electric motor. During the test drive, listen carefully for any unusual humming noises coming from the axles, and always insist on a diagnostic check to reveal any drive system error messages.
• Air suspension and creaking axles: Air suspension is standard on this model, but worn bushings and control arms can cause unpleasant creaking. During the test drive, intentionally drive over several speed bumps at lower speeds and test changing the vehicle's ride height to verify the quiet operation of the compressor and the air springs themselves.
• Virtual mirrors and MMI infotainment behavior: If the car is equipped with the optional camera-based rear-view mirrors, thoroughly check the smoothness of the image and the absence of lag – some units suffered from software freezing. Similarly, navigate through the main display menus to see if the system responds promptly and does not reset spontaneously.
• Sunroof leaks: In many used units, water enters the cabin due to clogged drainage channels in the panoramic roof. Check for dampness in the carpets underfoot, any water stains on the headliner, and the typical smell of mold in the interior.
• Battery condition (SOH) and fast-charging stability: Given the high weight and higher energy consumption of the Q8 e-tron, battery health is absolutely essential for real-world range. On a DC fast charger, verify that the car reaches the declared charging power without interruptions, and request a report on the current battery degradation.

When choosing a BMW iX:

• High-voltage battery status and recalls: Early BMW iX models (from 2022) had several recalls related to high-voltage battery modules and control unit software. Always verify via the VIN code at an authorized service center whether all warranty repairs and software updates have been reliably performed.
• Extreme tire wear and alignment: The powerful all-wheel drive and a curb weight exceeding 2.5 tons take a heavy toll on tires, especially with large 21" or 22" wheels. Check the tread depth and evenness of wear – heavily worn inner or outer edges can indicate "messed up" alignment and the imminent need for an expensive tire replacement.
• iDrive 8 system stability and black screens: The iDrive 8 onboard system is the center of everything in this model. Owners of used cars occasionally report it freezing, random warning messages, or even the entire curved display going black. Therefore, during the test drive, click through all functions, including assistance systems and parking cameras.
• 12V battery reliability: Although it is an advanced electric vehicle, it needs a classic 12V battery to start the systems and unlock the car. Its premature failure can completely immobilize the car. Illogical error codes or delayed unlocking of the vehicle are often the first warning signs of its impending end.
• Charging port and CCU unit functionality: Faults in the onboard charging unit (CCU) or the connector itself have appeared in used units, causing problems communicating with the charger and random charging interruptions. Try connecting the car to an available station during the inspection and observe whether the charging initialization proceeds smoothly on the first attempt.

Sources: ADAC, novinky.cz, auto.cz, techfocus.cz, autorevue.cz, autickari.cz

This article was prepared using artificial intelligence tools. The section guarantor is Petr Dušek.