The 2019 e-tron has developed multiple failure patterns owners describe as dangerous. The most prevalent is the high-voltage battery module self-discharge defect, covered by Recall 23V867000 since December 2023. Audi's fix remains unavailable; owners report indefinite delays waiting for replacement parts, with one owner describing a 1.5-year wait. Interim mitigation restricts charging to 75% and cuts range severely, yet the fire risk persists. One owner experienced the battery overheat while parked and received a shock unplugging the charger; another watched their vehicle catch fire at a charging station.
Coolant leaks into the front electric motor represent a second critical pattern. Multiple owners describe identical failures at highway speed: dashboard "Electrical Malfunction" warnings followed by complete motor shutdown. The fix is full motor replacement, delayed weeks waiting for parts from Germany.
Battery control module (SX6) failures immobilize the vehicle without warning. One owner replaced the module at 52,991 miles under warranty; it failed again at 104,741 miles and the dealer refused coverage. Owners cite this as a known issue on forums, unaddressed by Audi.
Water ingress into the battery pack and rear motor area appears linked to sunroof seals. One owner's vehicle was repaired under warranty, but a second heavy rain caused $23,000 in damage deemed unrepairable. Charging port failures and mechanical jams also occur. Additionally, some owners report unexpected acceleration at a traffic light, multiple safety system failures within weeks of purchase, and steering wheel control buttons disabling randomly. Dealers lack tools and parts to complete recall repairs, leaving owners driving vehicles they consider unsafe.
Failure modes owners describe
High-voltage battery module self-discharge and thermal runaway
Certain high-voltage battery modules exhibit self-discharge that can lead to thermal overload, smoke, or fire. Recall 23V867000 (issued Dec 20, 2023) addresses this defect but parts remain unavailable months or years after issuance. Interim mitigation includes software limiting charge to 75% and reducing available range. One owner reported the battery overheated while parked and attempting to charge, resulting in shock when unplugging. Another experienced a loud boom and flames at the rear driver-side wheel while charging at 111k miles.
When: Multiple mileages reported: 1,000 miles (first owner post-purchase), 31,000–52,991 miles (failures requiring replacement), 111,000 miles (fire incident). Recall open since Dec 2023 with no final resolution as of complaint dates in 2024–2025.
Symptoms owners cite: Fire or smoke from rear of vehicle while charging; Battery overheating while parked; Electrical shock when disconnecting charger; Dashboard warnings: 'Electrical System Malfunction' or 'Pull Over Safely'; Inability to charge beyond interim 75% limit; Range reduction due to software mitigation; Vehicle shutdown during operation
Codes mentioned: 23V867000 (NHTSA Campaign—High-Voltage Battery Module), Thermal overload fault, Battery cell imbalance
Repairs/costs cited: Recall remedy requires replacement battery modules. Parts on indefinite backorder; dealers report two-week to months-long delays for availability and installation. One owner noted battery cell replacement took over two weeks. Interim measure: software update limiting charge and range; sticker on dash recommending 75% max charge.
Recalls/TSBs owners mention: NHTSA Campaign 23V867000 issued Dec 20, 2023. Audi has not delivered final parts; dealers confirm ongoing parts distribution disconnect. Interim software limits applied. Audi monitoring some vehicles remotely but not performing final replacement. One owner reported 1.5-year delay with no resolution date.
Coolant leak into front electric motor
A faulty gasket in the battery coolant system allows coolant to leak directly onto the front motor, saturating windings and causing motor failure. Multiple owners cite this as a known issue discussed on EV forums. Failure results in immediate vehicle immobilization and 'Electrical Malfunction' warning.
When: Reported at 87,000 miles; another case at unspecified mileage. Failure pattern suggests exposure to moisture over time.
Symptoms owners cite: Electrical Malfunction dashboard warning; Multiple secondary warnings: 4WD, brake system, battery faults; Front motor inoperative; Vehicle immobile; Motor described as 'toasted' due to coolant saturation
Codes mentioned: Front motor fault, Coolant leak detection
Repairs/costs cited: Full front motor replacement required. Audi extended warranty coverage for motor replacement but repairs delayed weeks to months awaiting parts from Germany. One owner reported waiting for motor delivery while stranded.
Recalls/TSBs owners mention: Audi extended warranty for front motor replacement. No technical service bulletin or permanent design fix mentioned; coolant system design flaw appears unaddressed.
SX6 battery control module failure
The SX6 battery control module fails intermittently, causing electrical malfunction warnings and vehicle immobilization. One owner experienced failure at 52,991 miles (replaced under warranty) and again at 104,741 miles (warranty denied second time). Another owner reported SX6 failure cost over $8,000 to replace at 109,000 miles. Multiple forum posts cited.
When: First failure: 52,991 miles (Dec 22, 2022); second failure: 104,741 miles (Jan 6, 2025). Another case at 109,000 miles. Pattern suggests premature wear or design defect.
Symptoms owners cite: Electrical Malfunction warning; Vehicle unable to start; Complete vehicle immobilization; Risk of failure while driving at highway speeds
Codes mentioned: SX6 module failure
Repairs/costs cited: Full module replacement required; cost cited as $8,000+. One owner's first replacement covered under warranty; second replacement at higher mileage refused.
Recalls/TSBs owners mention: Audi has not issued a recall or extended warranty for SX6 module failures. One owner reported Audi awareness but no remedy offered. Multiple owners cite this as a known issue on forums but unaddressed by manufacturer.
Water ingress into battery pack and motor areas
Water enters vehicle through sunroof seal or unknown entry point, flowing into high-voltage battery area and rear of vehicle. Two documented cases: first repaired, second caused by heavy rain in Florida resulting in electrical burning smell, all warning lights, and water damage to battery. Dealership estimated $23,000 in damage; insurance declared vehicle a total loss.
When: Initial water ingress repaired under warranty. Recent incident during heavy rains (June 13–15); damage discovered June [date unspecified]. Failure progression suggests repair did not address root cause.
Symptoms owners cite: Electrical burning smell; All dashboard warning lights illuminated; Visible water in battery and rear areas; System failure
Codes mentioned: Water damage to high-voltage battery, Water damage to rear motor/electrical components
Repairs/costs cited: First repair attempted under warranty; second incident caused $23,000 estimated repair cost (not covered). Vehicle declared total loss by insurance.
Recalls/TSBs owners mention: Initial water ingress covered under warranty. No design fix or improved sealing implemented; subsequent rain caused similar damage outside warranty coverage. Owner alleges Audi aware of systemic water ingress issue but has not issued recall or design modification.
Charging port malfunction and mechanical jam
Charging port either fails to release the charging handle after charging completes, or fails to accept charge. One owner using third-party Grizzle charger experienced handle jam requiring disassembly of charging port. Another owner's port failed completely, requiring replacement at 160,000 miles (discovered under NHTSA Campaign 19V434000).
When: One case after using third-party charger; another at 160,000 miles.
Symptoms owners cite: Charging handle locked in port, unable to disengage; Inability to charge vehicle; Port mechanical failure
Codes mentioned: 19V434000 (NHTSA Campaign—Charging port failure)
Repairs/costs cited: Port disassembly/repair or full port replacement required. One owner charged $500+ for repair despite warranty coverage; dealer refused warranty claim citing third-party charger use. Another owner's failed port replaced at independent shop; dealer later advised no remedy available under 23V867000 or 23V842000 recalls.
Recalls/TSBs owners mention: NHTSA Campaign 19V434000 issued for charging port failure. One owner told charging port recall not associated with VIN despite failure. Audi claims use of non-Audi chargers may void coverage, though owner's manual does not mandate Audi-only chargers.
Improper recall completion and grounding strap disconnection
During Recall 93U9 (High-Voltage Battery Module), dealership technician failed to properly reinstall critical grounding strap for rear motor, leaving it disconnected and tucked between motor and covers. This resulted in multiple cascading failures: voltage converter failure, battery charging limited to 100 miles vs. 200+ miles normal, stored fault codes, dashboard warnings, rear motor faults, and parking brake system failures.
When: Recall service performed at 70,000 miles. Failures discovered immediately after recall completion.
Symptoms owners cite: Multiple dashboard warning lights; Voltage converter failure; Battery charging severely limited (100-mile range vs. 200+ miles); Rear motor faults; Parking brake system failures; High-voltage system grounding loss
Codes mentioned: Rear motor fault, Voltage converter fault (part 4KE-907-171-C), Battery charging fault
Repairs/costs cited: Dealership demanded $2,089 for repairs caused by their incomplete recall work. Owner disputed; no authorization given; repairs not completed.
Recalls/TSBs owners mention: Recall 93U9 issued for high-voltage battery module. Dealership technician (Chris Miller, Audi Salt Lake City) failed to reinstall grounding strap per service notes. Dealership threatened legal action when owner disputed unauthorized repair charges. No manufacturer oversight or quality control documented.
Unexpected vehicle acceleration while stopped at traffic light
While vehicle was stopped at red traffic light with driver's foot on brake, car lurched forward into rear of vehicle ahead for several seconds despite continued brake pressure. Driver was forced to shift out of Drive and press power button to stop vehicle. Audi engineer inspection found accelerator and brake pedals functioning normally; vehicle data recorder showed no relevant information. Audi concluded absence of evidence exonerates vehicle, but owner disputes, noting data recorder gap itself is suspicious.
When: January 13, 2020 (date notation may contain typo: 202).
Symptoms owners cite: Unintended acceleration while stopped; Brake pedal ineffective; Vehicle continued forward despite brake and shift attempts; Complete power shutdown required to stop
Codes mentioned: No codes recorded by vehicle data recorder
Repairs/costs cited: No repairs performed. Audi engineer inspection found no defect. Owner suspects electronic malfunction not captured by data recorder.
Recalls/TSBs owners mention: Audi engineer inspected vehicle Feb 14, 2020 (approximately one month later). Found pedals functioning normally and no data recorder information; concluded no malfunction. No further investigation or corrective action.
Multiple safety system failures within 90 days of purchase
New vehicle purchased 07/22/2025 experienced high-voltage battery module failure same day, requiring one-week repair. Upon return 08/08/2025, owner reported repairs complete. On 09/02/2025 (less than two weeks later), multiple simultaneous safety system failures occurred: Audi Adaptive Light malfunction, High Beam Assistant malfunction, Audi Pre Sense collision-avoidance system limited, and charging failure. By complaint date, Exit Warning malfunction also appeared.
When: Purchase: 07/22/2025. Initial HV battery failure: same day. Repair completion: 08/08/2025. Secondary failures: 09/02/2025. Tertiary failure: date of complaint (late 2025). All within 90 days of purchase.
Symptoms owners cite: High-voltage battery module failure (day of purchase); Audi Adaptive Light malfunction; High Beam Assistant malfunction; Audi Pre Sense currently limited warning; Vehicle fails to charge; Exit Warning malfunction
Codes mentioned: High-voltage battery module fault, Adaptive lighting fault, Collision avoidance system fault, Charging system fault
Repairs/costs cited: Initial HV battery module repaired 07/22–08/08/2025 (one week). Dealership stated repairs complete and vehicle safe; subsequent failures occurred within two weeks of return.
Recalls/TSBs owners mention: No information on recalls or TSBs provided to new buyer. Dealership claimed repairs complete after each incident but additional safety failures continued. No explanation of systemic electrical instability provided.
Rear-view camera display blank in reverse
Rearview camera display and all camera views on infotainment screen turn blank when vehicle is in Reverse. Screen function recovers in other modes. Reduces rear visibility and increases crash risk.
When: Recurring issue; specific mileage not stated.
Symptoms owners cite: Rearview camera display blank; All camera views blank while in Reverse; Loss of rear visibility assistance
Codes mentioned: Camera display malfunction
Repairs/costs cited: No repair information provided by owner.
Trunk lid foot-sensor false actuation
Built-in foot-sensor under trunk, designed to open via wave gesture, frequently triggers falsely when owner reaches into trunk for items. Trunk hatch has closed on owner's body on multiple occasions while arms/hands still in trunk area. Owner's foot accidentally trips sensor while reaching deep into trunk, initiating closure. Risk of pinch injury or entrapment.
When: Multiple incidents during normal trunk use; no specific mileage noted.
Symptoms owners cite: Trunk lid closes unexpectedly while owner is reaching into trunk; Trunk lid has struck owner's head; Foot inadvertently triggers sensor during reach operations
Steering wheel control button malfunction (airbag detection system)
Airbag detection system malfunctions intermittently, displaying 'detection system currently unavailable' warning and disabling all function buttons on steering wheel. Occurs at random times during driving, limiting driver control and safety features.
When: Random incidents during operation; no specific mileage.
Symptoms owners cite: Airbag detection system unavailable warning; All steering wheel control buttons inoperative; Loss of control functions at random times
Codes mentioned: Airbag detection system fault
Recall repair parts indefinite backorder and dealer unpreparedness
Multiple owners report recalls issued with no parts available and no completion timeline. Dealers lack tools (e.g., cell balancer tool for 23V867000) to perform repairs even when notified. One dealer told owner two-week delay for tool availability. Another told owner repairs cannot begin until parts arrive, with no ETA. Owners report carrying interim mitigation (software limiting charge) for over one year with no resolution. Audi cited 'supply chain' and 'parts distribution disconnect.'
When: Recalls issued Dec 2023–early 2024; parts still unavailable as of complaint dates in 2024–2025 (12–18+ month delays).
Symptoms owners cite: Recall notification issued but parts unavailable; Dealer unable to schedule repair due to missing components or tools; Manufacturer confirms parts not yet delivered; Indefinite delay in repair completion; Owners advised to monitor remote battery status while fire risk remains
Codes mentioned: 23V867000 (High-Voltage Battery Module self-discharge), 23V842000 (Electrical System), 19V434000 (Charging port)
Repairs/costs cited: Repairs require specific parts (battery modules, cell balancer tool, software) not in dealer inventory. Audi confirmed parts on backorder; multiple dealers unable to provide completion dates. Interim mitigation: software limiting charge to 75%, sticker on dash.
Recalls/TSBs owners mention: Recalls 23V867000, 23V842000, and 19V434000 issued. Audi confirmed parts unavailable; dealers confirmed same. No revised completion timeline or loaner program offered. Owners notified of fire hazard but told repairs delayed indefinitely.
Synthesized from 31 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.