The 2020 Audi A7 is built on the MLB Evo platform with the EA839 3.0T V6 engine. While refined and powerful, it suffers from critical oil consumption issues leading to catastrophic engine failure, plus typical VAG electrical gremlins and hydraulic transmission mount failures.
Symptoms: Low oil warning light illuminating between service intervals, Blue smoke from exhaust on cold start or acceleration, Rough idle, misfires, or complete engine seizure if oil runs critically low, Piston ring land cracking or piston skirt failure in severe cases
Fix: Root cause is defective piston ring design and excessive cylinder bore wear. Proper fix requires engine rebuild with updated pistons/rings (18-24 hours labor) or short block replacement (22-28 hours). Band-aid approach is adding oil frequently and hoping to limp past warranty. Audi has extended warranty coverage on some VINs but not all.
Estimated cost: $12,000-18,000
ZF 8HP Transmission Oil Cooler Failure
Occasional · high severity
Typical onset: 50,000-90,000 mi
Symptoms: Transmission fluid mixing with coolant (strawberry milkshake in expansion tank), Transmission slipping, delayed shifts, or limp mode, Engine overheating in some cases, Check engine light with transmission temperature codes
Fix: Internal oil cooler in the transmission fails, allowing cross-contamination. Requires complete transmission flush, cooler replacement, and often new transmission fluid lines (8-12 hours labor). If caught late, transmission rebuild may be necessary due to fluid contamination damage.
Estimated cost: $2,800-5,500
Hydraulic Engine/Transmission Mount Collapse
Common · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: Clunking or thudding when shifting from Park to Drive/Reverse, Excessive vibration at idle, especially with AC on, Visible engine movement when accelerating hard, Transmission 'jerk' during low-speed shifts
Fix: The hydraulic-filled mount on the passenger side fails internally, losing damping ability. Replacement requires supporting the drivetrain and accessing mount from below (2.5-4 hours labor). OEM part only—aftermarket versions fail within months.
Symptoms: Fuel gauge reading full when tank is empty or vice versa, Gauge fluctuating wildly during driving, Range-to-empty calculation completely inaccurate, Warning messages about refueling when tank is half full
Fix: Faulty fuel level float/sender in tank. Covered under NHTSA recall but dealers often have parts on backorder. Requires dropping fuel tank and replacing sender unit (3-4 hours labor). Some owners report multiple failures even after recall repair.
Estimated cost: $800-1,400
Rear Camera / Backup Prevention System Failure
Occasional · medium severity
Symptoms: Backup camera showing 'Camera Unavailable' message, Parking sensors non-functional or giving false warnings, Trunk latch corrosion causing water intrusion to camera module, Intermittent failure in cold or wet weather
Fix: Water intrusion through trunk seal damages camera control module or camera itself. Often requires new camera unit, rear harness repair, and trunk seal replacement (2-3 hours labor). Recall exists but doesn't cover all failure modes. Verify drain tubes are clear during repair.
Estimated cost: $900-1,800
48V Mild Hybrid System Battery / BMS Failures
Occasional · medium severity
Typical onset: 70,000-110,000 mi
Symptoms: Start-stop system inoperative with warning message, Reduced power or limp mode due to 48V system fault, Battery management system errors in fault codes, Voltage fluctuations causing multiple electrical gremlins
Fix: The 48V lithium-ion battery or its management system develops cell imbalances or controller faults. Diagnosis requires Audi-specific scan tools (1-2 hours diag). Battery replacement is 4-6 hours labor; BMS module replacement is 2-3 hours. Programming required after any component swap.
Estimated cost: $2,200-4,800
Air Suspension Compressor & Valve Block Leaks
Common · medium severity
Typical onset: 80,000-120,000 mi
Symptoms: Vehicle sitting low after sitting overnight (suspension sag), Compressor running constantly or cycling frequently, Suspension warning light with 'Drive Moderately' message, Uneven ride height side-to-side
Fix: Air springs themselves are usually fine; valve block o-rings and compressor piston seals fail. Valve block reseal takes 3-4 hours; compressor replacement is 2-3 hours. Must clear adaptation values after repair. Some shops offer rebuilt valve blocks for cost savings.
Estimated cost: $1,800-3,200
Owner tips
Check oil level every 500-1000 miles religiously—this engine WILL consume oil even when 'healthy'
Verify any used A7 has had the fuel sender recall completed and ask for oil consumption test records
Budget $2,000/year for unexpected repairs after 60k miles; extended warranty strongly recommended
Use only Audi-approved 0W-20 oil and OEM filters—aftermarket causes accelerated wear on this engine
Inspect transmission cooler and fluid condition at every service; early detection prevents $8k+ trans replacement
Hard pass unless under factory warranty or CPO with strong coverage—the EA839 oil consumption issue is a ticking time bomb that can brick a $15k engine with little warning.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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BACK OVER PREVENTION: SENSING SYSTEM: CAMERA · 25V900000
2025-12-19
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2026 vehicles. Please see the recall report for a complete list of models. A software error may prevent the rearview camera image from displaying as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Consequence: A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
Remedy: Dealers will update the software, free of charge. Owner notification letters were mailed January 14, 2026. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 90TV. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on December 23, 2025.
SERVICE BRAKES, HYDRAULIC:FLUID · 23V601000
2023-08-25
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi S7, S6 Sedan, RS7, RS6 Avant, A6 Allroad, 2019-2021 A7, and A6 Sedan vehicles. An incorrectly labeled brake fluid cap may have been installed, which can result in the use of the wrong type of brake fluid.
Consequence: Incorrect brake fluid can reduce braking ability and increase the risk of a crash.
Remedy: Dealers will inspect the brake fluid reservoir cap and, if necessary, replace it, free of charge. Owner notification letters are expected to be mailed October 17, 2023. Owners may contact Audi's customer service at 1-800-253-2834. Volkswagen's number for this recall is 47T9.
ELECTRICAL SYSTEM · 22V861000
2022-11-21
Volkswagen Group of America, Inc. (Audi) is recalling certain 2020-2022 Audi S7, S6 Sedan, A6 Allroad, 2021-2022 RS7, RS6 Avant, 2019-2022 A7, and A6 Sedan vehicles. Liquid spilled in the rear seat may penetrate and cause the gateway control module to shut down.
Consequence: A gateway control module shutdown will suddenly reduce engine power, increasing the risk of a crash.
Remedy: Dealers will install a protective cover, free of charge. Owner notification letters are expected to be mailed January 20, 2023. Owners may contact Audi's customer service at 1-800-253-2834. Audi's number for this recall is 90V2.
ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE:FUEL LEVEL FLOAT/SENSOR/SENDING UNIT · 22V155000
2022-03-14
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 RS6 Avant and RS7, 2020-2022 A6 Allroad, S6 Sedan, and S7, and 2019-2022 A6 Sedan and A7 vehicles. The fuel level sender may stick, causing an inaccurate fuel level reading to be displayed on the instrument cluster.
Consequence: An inaccurate fuel reading may cause an engine stall due to lack of fuel, increasing the risk of a crash.
Remedy: Dealers will install a new sensor in the tank, free of charge. Owner notification letters were mailed February 17, 2023. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 20DN.
TIRES · 22V034000
2022-01-26
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-295 (42L1) were performed.
Consequence: Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
Remedy: Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. Owner notification letters were mailed March 3, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L5.
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear axle may break due to stress corrosion.
Consequence: A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
Remedy: Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L1.
AIR BAGS · 21V159000
2021-03-10
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi RS6 Avant, RS7, 2020-2021 A6 Allroad, S6 Sedan, S7, 2019-2021 A6 Sedan, and A7 vehicles. The score line on the passenger air bag may not have been manufactured correctly.
Consequence: An incorrectly manufactured air bag may not deploy properly, and could also eject plastic debris into the passenger compartment, increasing the risk of injury during a crash.
Remedy: Audi will notify owners, and dealers will inspect the passenger air bag score line, and repair it as necessary, free of charge. The recall begin March 26, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 70i2.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 20V274000
2020-05-13
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2020 Audi A6, A6 Allroad and A7 vehicles. The passenger air bag may not properly deploy through the instrument panel tear seam.
Consequence: In the event of a crash, the passenger air bag may not properly deploy and inflate, and small plastic parts may enter the cabin,
increasing the risk of injury.
Remedy: Audi will notify owners, and dealers will replace the instrument panels, free of charge. The recall began June 24, 2020. Owners may contact Audi customer service at 1-800-822-2834. Volkswagen's number for this recall is 70H6.
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