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2020 Audi A6 Quattro

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2020 A6 Quattro.

The 2020 Audi A6 Quattro’s powertrain is maintained with 5.5 quarts of 0W-20 engine oil, establishing the baseline for its mechanical servicing requirements. In the broader scope of the model's reliability history, this year is distinguished by 24 owner complaints primarily concentrated in the electrical system, alongside 9 official recalls. This convergence of electrical issues and numerous recalls means the 2020 A6 Quattro represents a more demanding chapter for researchers, necessitating rigorous inspection of electrical components and recall documentation.

Model year2025 2024 2023 2022 2021 2020 2005 2000 1999

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity5.5 qtOEM · verified

Engine oil type0W-20OEM · verified

Lug nut torque89 ft-lbsOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI Battery is vented to the outside of the vehicle. The manufacturer used many types of batteries during production. Battery must be sized to fit. Battery must be registered after installation with a proper scan tool. The vehicles computer needs to be reset after installation. PR Codes are from the factory and refer to installed options. O. E. Battery is an Enhanced Flooded Batter, EFB: PRJ0V: 48. Battery is vented to the outside of the vehicle. The manufacturer used many types of batteries during production. Battery must be sized to fit. Battery must be registered after installation with a proper scan tool. The vehicles computer needs to be reset after installation. AGM VRLA battery is required.PR Codes are from the factory and refer to installed options: PRJ2D: 48; PRJ0P: 95R. Battery is vented to the outside of the vehicle. The manufacturer used many types of batteries during production. Battery must be sized to fit. Battery must be registered after installation with a proper scan tool. The vehicles computer needs to be reset after installation. PR Codes are from the factory and refer to installed options: PRJ0Z: 95R. · Cranking Performance is specified by O.E. AmpHrs: PRJ2D: 68; PRJ0P: 105; PRJ0Z: 110; PRJ0V: 70. CCA battery, OE oil filter 06M115441G. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI Battery is vented to the outside of the vehicle. The manufacturer used many types of batteries during production. Battery must be sized to fit. Battery must be registered after installation with a proper scan tool. The vehicles computer needs to be reset after installation. PR Codes are from the factory and refer to installed options. O. E. Battery is an Enhanced Flooded Batter, EFB: PRJ0V: 48. Battery is vented to the outside of the vehicle. The manufacturer used many types of batteries during production. Battery must be sized to fit. Battery must be registered after installation with a proper scan tool. The vehicles computer needs to be reset after installation. AGM VRLA battery is required.PR Codes are from the factory and refer to installed options: PRJ2D: 48; PRJ0P: 95R. Battery is vented to the outside of the vehicle. The manufacturer used many types of batteries during production. Battery must be sized to fit. Battery must be registered after installation with a proper scan tool. The vehicles computer needs to be reset after installation. PR Codes are from the factory and refer to installed options: PRJ0Z: 95R. · Cranking Performance is specified by O.E. AmpHrs: PRJ2D: 68; PRJ0P: 105; PRJ0Z: 110; PRJ0V: 70. CCAOEM · verified

Tail / brake / turnLAMPOEM · verified

Tire sizeP245/45R19H, P255/40R20H, P255/40R20Y, P255/35R21Y,OEM · verified

Wheel / rimNS inOEM · verified

OE service part numbers OEM · verified

Engine oil filter	06M115441G alt 06L115562B
Engine air filter	4K0133844E alt 4K0133844D
Spark plug	06M905606F alt 06K905601B
Battery	000915089BC
Front wiper blades	4K1998002D
Thermostat	06M121688 alt 06M121115N
Cabin air filter	4M0819439C

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length	194.5 in
Overall width	74.4 in
Overall height	57.5 in
Wheelbase	115 in
Curb weight	4266 lb
Track (front / rear)	64.2 / 63.8 in
Weight distribution (front / rear)	55/45

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 5.5 qt of 0W-20 engine oil. Torque lug nuts to 89 ft-lbs.

Lubricants & capacities

Engine Oil	0W-20
Engine Oil Capacity	5.5 qt
Engine Oil	0W-20
Engine Oil Capacity	8.0 qt

Chassis torques

Lug Nuts

89 ft-lbs

Battery & A/C

Refrigerant	R1234yf
Refrigerant Capacity	With code TV8

Brakes

Brake Caliper Bolt to Carrier Torque	Front: NS; Rear: Use new bolts, 26.0 ft-lbs
Brake Caliper Carrier to Hub Bolt Torque	Front: 1LC; Front: 145.0 ft-lbs
ABS Sensor Torque	Front: 6.0; Rear: 6.0
Vented Rotor Minimum Thickness for Replacement	Front: 1LC; Rear: 1KD

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages

45.0 ft. lbs., Step 2: 90°

45 ft. lbs

Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages

Prep Replace bolts: Step 1: 15 ft. lbs.

90°

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 10,000 mi; spark plugs every 40,000 mi.

Every 10,000 mi	Brake Linings (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire Repair Kit Sealant (inspect)
Every 20,000 mi	Air Conditioning Evaporator Case Drain (inspect) · Battery (inspect) · Body Water Drains (inspect) · Brake Line (inspect) · Cabin Air Filter (replace) · Door Hinge (lubricate)
Every 40,000 mi	Spark Plugs (replace) · Transmission Assembly (drain & refill)
Every 60,000 mi	Drive Belt (replace) · Engine Air Filter Element (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

Owner complaints about the 2020 Audi A6 Quattro dominate in one area — the electrical system, 10 of 24 reports (42%), well ahead of the next concern. None of this vehicle's 9 recall campaigns target the electrical system, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 0 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the electrical system pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

Open recalls

NHTSA campaigns

1339

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

0 involved a crash · 0 a fire

NHTSA crash-test rating federal NCAP · out of 5 stars

Overall★★★★★

Frontal★★★★★

Side★★★★★

Rollover★★★★★

Owner complaints filed with NHTSA, by component

All 24 complaints on record, top 8 components.

Electrical System10

Forward Collision Avoidance3

Structure,Unknown Or Other2

Electrical System,Seats1

Electrical System,Structure1

Fuel/Propulsion System1

Forward Collision Avoidance,Back Over Prevention1

Electrical System,Unknown Or Other,Back Over Prevention1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 9 campaigns on record for this vehicle.

22V034000TiresReported 26/01/2022

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… 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…

21V159000Air BagsReported 10/03/2021

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… 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…

Technical service bulletins NHTSA · verified

Showing 5 of 1339 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
TSB_2082147_1	2026-06-29	Electrical System	This bulletin provides informaiton when there are function issues in vehicles equipped…
TSB_2074640_3	2026-06-26	Engine	This bulletin provides information when there is increased oil consumption; >0.5ltr/1000…
TSB_2074729_3	2026-06-23	Electrical System	This bulletin provides informationwhen noises/vibration are detected from front of…
TSB_2059335_7	2026-06-23	Electrical System	This bulletin provides information when there are noises from the area around the…
TSB_2064983_15	2026-06-22	Electrical System	This bulletin provides information when there are pixel faults on the virtual cockpit.

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420

Catalyst system efficiency below threshold — Bank 1

P0300

Random / multiple cylinder misfire detected

P0171

System too lean — Bank 1

P0455

Evaporative emission system leak detected — large leak

P0128

Coolant thermostat below regulating temperature

P0442

Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN

Decode a VIN to confirm the transmission and build data for a specific A6 Quattro. OEM

Build data

Plant, GVWR class, engine and body data for any 17-character VIN.

Recalls

Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Group B battery Vehicles taking 5.5 qt Engine oil filter 06M115441G Engine air filter 4K0133844E Spark plug 06M905606F Battery 000915089BC

Reference guides

Cross-vehicle references for the kinds of data on this page.

Vehicle recalls & TSBs OBD-II trouble codes Torque specifications Maintenance schedules Fluid capacities & specs

Frequently asked

How much oil does the 2020 A6 Quattro take?

5.5 qt of 0W-20 Long Life IV, per the factory manual.

Does the 2020 A6 Quattro have open recalls?

NHTSA lists 9 recall campaign(s) for this model year. Check your specific vehicle by VIN.