AudiA6 Sedan2012Overview/audi/a6-sedan/2012/base/

2012 Audi A6 Sedan

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2012 A6 Sedan.

Body PASSENGER CARTransmission Automatic (variable gear ratios)

The 2012 Audi A6 Sedan, classified as a passenger car, is paired with a variable-ratio automatic transmission and EPA fuel economy ratings of 25 mpg city, 33 mpg highway, and 28 mpg combined, with its 4.9-quart oil sump specified for 5W-30 or 5W-40 API-grade lubricant. Reliability documentation for this model year tallies 59 owner complaints and eight recalls, with air bags standing as the most-cited trouble area — figures that sit well below the 91 complaints recorded for 2005 but well above the five logged for 2025. Within the A6's 2005–2025 complaint arc, the 2012 occupies an upper-middle band, framing it as a transitional example of a nameplate whose owner-reported dependability has trended markedly cleaner in the years since.

Quick specs

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

Engine oil capacity4.9 qtOEM · verified
Engine oil type5W-30 / 5W-40 APIOEM · verified
Lug nut torque89 ft-lbsOEM · verified
EPA fuel economy25/33/28 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 49 · 850 CCA battery, OE oil filter 06J115403Q. 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 49 · 850 CCAOEM · verified
Tire sizePREMIUM PLUS P245-45R18; PREMIUM PREMIUM, PREMIUM PLUS, PRESTIGE P255-40R19-55R17;OEM · verified

OE service part numbers OEM · verified

Engine oil filter06J115403Q
Engine air filter4G0133843K
Fuel filter4G0201317B
Spark plug06H905601A
Front wiper blades4G1955425B alt 8F1955426B
Serpentine belt06J260849F
Thermostat06H121113B alt 06J121113C
Cabin air filter4H0819439

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (variable gear ratios)

Dimensions & weight NHTSA vPIC

Overall length193.7 in
Overall width73.6 in
Overall height57.5 in
Wheelbase114.6 in
Curb weight4045 lb
Track (front / rear)64.2 / 63.8 in
Weight distribution (front / rear)55/45

Ratings & economy EPA / vPIC

EPA city / highway / combined25 / 33 / 28 mpg
DrivetrainFront-Wheel Drive
Passenger volume97 cu ft
Cargo volume14 cu ft
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

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

This engine holds 4.9 qt of 5W-30 / 5W-40 API engine oil, SYNTHETIC · 75W-90 · GL-4 in the differential, DOT 4 brake fluid. Torque lug nuts to 89 ft-lbs, the oil drain plug to 18.4 ft-lbs. The firing order is 1-4-3-6-2-5. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Automatic Transmission FluidAudi part number G060162A2
Automatic Transmission Fluid Capacity4.2-4.9
Brake FluidDOT 4
Differential Gear OilSYNTHETIC · 75W-90 · GL-4
Differential Gear Oil Capacity1.9 Pints
Engine Oil5W-30 · 5W-40 · API
Engine Oil Capacity4.9 qt
Engine Oil5W-30 · 5W-40 · API

Engine torques

Intake Manifold to Engine Bolts6.6 ft-lbs
Intake Manifold to Engine Bolts7.3 ft-lbs
Engine Oil Pan Drain Plug18.4 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs17 ft-lbs
Engine Valve Cover Bolts7.2

Chassis torques

Lug Nuts89 ft-lbs
Transfer Case Fill Plug20.0 ft-lbs
Transfer Case Drain Plug7.0 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Cylinder Firing Order1-4-3-6-2-5
Spark Plug ManufacturerAudi/VW
Spark Plug Torque22 ft-lbs
Spark Plug Torque22.0 ft-lbs

Battery & A/C

RefrigerantR134a
Oil GroupPAG
Standard BCI Group Number49
Standard BCI Cranking Performance850 cca
Standard BCI Group Number49
Standard BCI Cranking Performance850 cca

Service checks

Pressure Test14.5 psi
Radiator Cap Pressure Relief20-23 psi
Thermostat Opening Temperature188 °F
Pressure Test14.5 psi
Radiator Cap Pressure Relief20-23 psi
Engine Compression159-203 PSI @ RPM. 44 maximum variation PSI.
Engine Compression159-203 PSI @ RPM. 44 maximum variation PSI.

Brakes

Brake ApplicationWITH 1KD, 2ED / WITH 1KW, 2EE / WITH 1LL
Torque Caliper to Bracket26 USE NEW BOLTS ONLY ft-lbs / 40 ft-lbs
Brake ApplicationWITH 1KD, 2ED / WITH 1KW, 2EE / WITH 1LL
Torque Caliper to Bracket26 USE NEW BOLTS ONLY ft-lbs / 40 ft-lbs
Brake ApplicationWITH 1KD, 2ED / WITH 1KW, 2EE / WITH 1LL
Rotor Nominal Thickness From0.472 in / 0.866 in / 1.339 in
Rotor Nominal Thickness To0.472 in / 0.866 in / 1.339 in
Rotor Discard at or Under0.394 in / 0.787 in / 1.26 in

Multi-step torque procedures OEM · verified

Torque to Knuckle — tightening sequence 1 stages
174, STEP 290 DEGREES
Torque to Knuckle — tightening sequence 1 stages
174, STEP 290 DEGREES
Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
16 ft. lbs., Step 2: 906 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
133 ft. lbs., Step 2: 9033 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
17 ft. lbs., step 2: 907 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
115 ft. lbs., step 2: 20 ft. lbs., step 3: replace bolt and shim15 ft. lbs
Cylinder Head — tightening sequence 5 stages

Prep Do not reuse old bolts. Use new bolts coated with clean engine oil.

130.0 ft. lbs.30 ft. lbs
290 degrees90 degrees
390 degrees90 degrees
4front bolts only 6.0 ft. lbs.6 ft. lbs
590 degrees90 degrees
Cylinder Head — tightening sequence 3 stages

Prep Do not reuse old bolts. Use new bolts coated with clean engine oil. Tighten all bolts to finger tight then continue on with the following procedure.

130.0 ft. lbs.30 ft. lbs
290 degrees90 degrees
390 degrees90 degrees
Engine Flywheel Bolts — tightening sequence 1 stages
144 ft. lbs., Step 2: 9044 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
13.7 ft. lbs., step 2: 8.9 ft. lbs., step 3: 11.8 ft. lbs., step 4: step 18.43.7 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
1install by hand, step 211 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter at 5,000 mi; spark plugs at 55,000 mi; coolant at 15,000 mi. The big-interval services (at 15,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

At 5,000 miBrake System (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Headlamp Washer Nozzle (inspect) · Headlamp Washer System (inspect fluid level) · Tire & Wheel Assembly (rotate)
Every 10,000 miBrake System (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Headlamp Washer Nozzle (inspect) · Headlamp Washer System (inspect fluid level) · Tire & Wheel Assembly (inspect)
At 15,000 miAir Conditioning Evaporator Case Drain (inspect) · Battery (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Engine Assembly (leak inspection) · Engine Coolant System (inspect fluid level)
Every 20,000 miAir Conditioning Evaporator Case Drain (inspect) · Battery (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Engine Assembly (leak inspection) · Engine Coolant System (inspect fluid level)
At 35,000 miBody Lock Cylinders (lubricate) · Brake Rotor (inspect) · Door Hinge (lubricate) · Hood Latch (lubricate) · Power Steering System (inspect fluid level)
Every 40,000 miBody Lock Cylinders (lubricate) · Brake Rotor (inspect) · Door Hinge (lubricate) · Hood Latch (lubricate) · Power Steering System (inspect fluid level)
At 55,000 miDrive Belt (replace) · Engine Air Filter Element (replace) · Engine Air Filter Housing (clean) · Spark Plugs (replace)
Every 60,000 miDrive Belt (replace) · Engine Air Filter Element (replace) · Engine Air Filter Housing (clean) · Spark Plugs (replace)
At 75,000 miAccessory Drive Belt (inspect)

Reliability & federal safety record

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

The federal record shows that the earliest data point (2005) had 91 complaints, 3 recalls, 1 investigation and 380 technical service bulletins, while the most recent years (2024‑2025) dropped dramatically to 0–5 complaints, 1‑2 recalls, no investigations and 516‑797 service bulletins. This steep decline in complaints suggests an overall improvement in reliability across the generation, even though the number of service bulletins has risen, indicating manufacturers are addressing issues proactively. Because the dataset does not include any specific figures for 2012, we cannot place that model year precisely within the trend arc; the data simply does not specify its complaint or recall counts. Nonetheless, the surrounding trend points to fewer consumer‑reported problems in later years, implying that 2012 likely falls between the higher‑complaint early years and the very low‑complaint recent years. **Takeaway:** without concrete 2012 data, the year appears to be in a transitional period, but the overall downward trend in complaints suggests it is not a red‑flag year; it can be considered a reasonably safe used‑car purchase pending a thorough inspection.

8
Open recalls
NHTSA campaigns
1491
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
59
Owner complaints
0 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 59 complaints on record, top 8 components.

Air Bags7
Fuel/Propulsion System6
Engine6
Steering4
Electrical System3
Power Train3
Structure2
Fuel System, Gasoline2

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 8 campaigns on record for this vehicle.

18V229000Engine And Engine Cooling:Cooling SystemReported 11/04/2018

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2017 Audi A5 Cabriolet, A5 Sedan and Audi Q5 vehicles, 2012-2015 Audi A6 vehicles and 2013-2016 Audi A4 Sedan and A4 allroad vehicles. These… Remedy: Audi will notify owners, and dealers will replace the pumps, free of charge. The recall began September 14, 2018. Owners may contact Audi customer service at 1-800-253-2834…

18V370000Air Bags:Sensor:Occupant ClassificationReported 04/06/2018

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S6 and S7, 2012-2018 A7 and A6 Sedan, and 2014-2018 RS7 vehicles equipped with basic seats (with or without heating). Stress or wear of… Remedy: Volkswagen will notify owners, and dealers will install a PODS system repair kit, free of charge. The recall began November 29, 2018. Owners may contact Audi customer service at…

Technical service bulletins NHTSA · verified

Showing 5 of 1491 bulletins on record with NHTSA.

BulletinDateComponentSummary
TSB_2074729_32026-06-23Electrical SystemThis bulletin provides informationwhen noises/vibration are detected from front of…
TSB_2028985_132026-06-23Power TrainThis bulleitn procides informaiton when tehre is a transmission warning mssage in the…
TSB_2059335_72026-06-23Electrical SystemThis bulletin provides information when there are noises from the area around the…
TSB_2082046_12026-06-22Power TrainThis bulletin provides information when there is a strong jolt after engine automatically…
TSB_2082323_12026-06-10EngineThis bulletin provides informaiton when the engine is not running smoothly, misfiring.

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

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Vehicles with shared specs

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

Reference guides

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

Frequently asked

How much oil does the 2012 A6 Sedan take?

4.9 qt of 5W-30 OR 5W-40 API MEETING VW SPECIFICATION VW50200, per the factory manual.

Does the 2012 A6 Sedan have open recalls?

NHTSA lists 8 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the A6 Sedan get?

EPA figures are 25 city / 33 highway / 28 combined mpg.