AudiA32008Overview/audi/a3/2008/base/

2008 Audi A3

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2008 A3.

Body PASSENGER CARTransmission Automatic (S6)

The 2008 Audi A3 is a passenger car equipped with a six-speed automatic transmission, calling for 4.9 quarts of 5W-30 or 5W-40 API oil and delivering an EPA-estimated 22 mpg city, 29 mpg highway. Its 43 owner complaints and three recalls, with air bags as the top concern, place it well below the model’s peak of 176 complaints in 2015, marking this year as a relatively dependable entry in the A3’s 2001–2025 history.

Model year2024202320222020201920132008

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 economy22/29/25 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 47 · 540 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 47 · 540 CCAOEM · verified
Tail / brake / turnBRAKE/OEM · verified
Tire sizeP225-45R17OEM · verified

OE service part numbers OEM · verified

Engine oil filter06J115403Q alt 06F115441B
Engine air filter1K0129620G alt 06F133843A
Fuel filter1K0201051K
Spark plug06H905601A
Battery000915089F
Front wiper blades8P1955425J alt 8P1955426J
Serpentine belt06F260849L alt 06J260849D
Thermostat06H121113B alt 06B121119C
Cabin air filter1K1819669

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S6)

Dimensions & weight NHTSA vPIC

Overall length168.9 in
Overall width68.5 in
Overall height57.5 in
Wheelbase101.6 in
Curb weight3660 lb
Track (front / rear)59.8 / 58.3 in
Weight distribution (front / rear)60/40

Ratings & economy EPA / vPIC

EPA city / highway / combined22 / 29 / 25 mpg
DrivetrainFront-Wheel Drive
Passenger volume89 cu ft
Cargo volume20 cu ft
Recommended fuelPremium Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the A3 of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

5.8–8.7 sec0–60 mph (tested)quickest 5.80 sec — 2006 3.2 Quattro S-Line Wagon
YearTrim / engine0–60¼ mileHPDrivetrain
20092.0T Quattro Wagon 2.0L Turbo I-46.30 sec14.90 sec200 hpAWD
20063.2 Quattro S-Line Wagon 3.2L V65.80 sec14.50 sec250 hpAWD
20062.0T Wagon 2.0L Turbo I-46.10 sec14.70 sec200 hpFWD
20062.0T Wagon 2.0L Turbo I-46.20 sec14.60 sec200 hpFWD
20062.0T Wagon 2.0L Turbo I-46.40 sec15.00 sec200 hpFWD
20062.0T Wagon 2.0L Turbo I-46.40 sec14.90 sec200 hpFWD
20062.0T Wagon 2.0L Turbo I-46.50 sec14.90 sec200 hpFWD
20062.0T Wagon 2.0L Turbo I-47.10 sec15.30 sec200 hpFWD

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, REAR: AUDI PART NO. G052145A1 in the differential. Torque lug nuts to 89 ft-lbs, the oil drain plug to 22.1 ft-lbs. The firing order is 1-5-3-6-2-4. 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

Differential Gear OilREAR: AUDI PART NO. G052145A1
Differential Gear Oil Capacity2 Pints
Engine Oil5W-30 · 5W-40 · API
Engine Oil Capacity4.9 qt
Engine Oil5W-30 · 5W-40 · API
Engine Oil Capacity5.8 qt
Power Steering FluidUSE AUDI PART NO. G002000 OR G004000

Engine torques

Engine Flywheel BoltsLong bolts
Intake Manifold to Engine Bolts7.3 ft-lbs
Intake Manifold to Engine Bolts9.6 ft-lbs
Exhaust Manifold to Cylinder Head Bolts17 ft-lbs
Engine Oil Pan Drain Plug22.1 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs15 ft-lbs

Chassis torques

Lug Nuts89 ft-lbs
Transfer Case Fill Plug11.0 ft-lbs
Transfer Case Drain PlugBevel box: 44.0, Haldex Clutch: 22.0 ft-lbs

Ignition

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

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.10-1.21 lbs
Oil TypePAG 46
Oil CapacityDenso compressor, 4.39-5.06, Sanden compressor, 3.38-4.05, Zexel compressor, 3.71-4.39 oz
Standard BCI Group Number47
Standard BCI Cranking Performance540 cca
Optional BCI Group Number48
Optional BCI Cranking Performance640 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
Thermostat Opening Temperature176 °F
Engine Compression159-203 PSI @ RPM. 44 maximum variation PSI.
Engine Compression145-203 PSI @ RPM. 44 maximum variation PSI.

Brakes

Brake ApplicationWITH 1KD, 1KQ / WITH 1KZ, 1KE, 1KJ, 1KU
Torque Caliper to Bracket26 ft-lbs
Brake ApplicationWITH 1KF / WITH 1KJ, 1KU / WITH 2EA, 1KW
Torque Caliper to Bracket26 ft-lbs
Torque Caliper to Bracket22 ft-lbs
Torque to Knuckle140 ft-lbs / 144 ft-lbs
Brake ApplicationWITH 1ZF
Torque Caliper to Bracket22 ft-lbs

Multi-step torque procedures OEM · verified

Torque to Knuckle — tightening sequence 1 stages
190
Torque to Knuckle — tightening sequence 1 stages
190
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
122 ft. lbs., Step 2: 9022 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
122 ft. lbs., Step 2: 9022 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
110 ft. lbs., step 2: 9010 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
120 ft. lbs., step 2: 9020 ft. lbs
Cylinder Head — tightening sequence 3 stages
129.5 ft. lbs.29.5 ft. lbs
290 degrees90 degrees
390 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.

122.0 ft. lbs.22 ft. lbs
237.0 ft. lbs37 ft. lbs
3180 degrees180 degrees
Cylinder Head — tightening sequence 5 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.

129.5 ft. lbs.29.5 ft. lbs
237.0 ft. lbs37 ft. lbs
3180 degrees180 degrees
4crankcase vent bolt pretighten to 6.0 ft. lbs.6 ft. lbs
590 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
14 ft. lbs., step 2: 9 ft. lbs., step 3: 12 ft. lbs., step 4: step 184 ft. lbs
Main Bearings — tightening sequence 1 stages
148 ft. lbs., Step 2: 9048 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 every 5,000 mi; spark plugs at 35,000 mi.

At 5,000 miBrake System (inspect) · Headlamp Washer Nozzle (inspect) · Headlamp Washer System (inspect fluid level) · Tire & Wheel Assembly (inspect) · Windshield Washer System (inspect) · Windshield Wiper Blade (inspect)
Every 5,000 miEngine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate) · Windshield Washer System (inspect fluid level)
Every 10,000 miBrake System (inspect) · Headlamp Washer Nozzle (inspect) · Headlamp Washer System (inspect fluid level) · Tire & Wheel Assembly (inspect) · Windshield Washer System (inspect) · Windshield Wiper Blade (inspect)
At 15,000 miBattery (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Drive Axle Assembly (leak inspection) · Driveshaft (inspect) · Engine Assembly (leak inspection)
Every 20,000 miBattery (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Drive Axle Assembly (leak inspection) · Driveshaft (inspect) · Engine Assembly (leak inspection)
At 35,000 miBody Latches, Locks & Hinges (lubricate) · Brake Rotor (inspect) · Hood Latch (lubricate) · Power Steering System (inspect fluid level) · Spark Plugs (replace) · Transfer Case Assembly (drain & refill)
Every 35,000 miHeadlamp (inspect alignment)
Every 40,000 miBody Latches, Locks & Hinges (lubricate) · Brake Rotor (inspect) · Engine Air Filter Element (replace) · Engine Air Filter Housing (clean) · Hood Latch (lubricate) · Power Steering System (inspect fluid level)
At 55,000 miEngine Air Filter Element (replace) · Engine Air Filter Housing (clean)

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 2008 Audi A3 sits within a generation where complaint and recall activity peaked sharply in 2006 (123 complaints, 4 recalls) before moderating in subsequent years. Compared to the 2006 high-water mark, the 2008 shows meaningful improvement—complaints dropped from 123 to 43, and the recall count fell from 4 to 3—though the 2009 model year would see a rebound to 47 complaints and an uptick to 5 recalls with the introduction of federal investigations. The Technical Service Bulletins continued to accumulate (478 in 2008 versus 374 in 2007), suggesting ongoing dealer-level attention to emerging issues even as formal complaint volumes declined. Within the 2008 record, Air Bag complaints dominate at 23 of 43 total, followed by Power Train at 13, while crash-related complaints numbered only 2 and fire complaints were zero. The 2008 model year occupies a transitional position in the generation's arc—past the initial crisis of 2006 but before the elevated complaint activity that returned in 2015 (176 complaints). The takeaway for a prospective buyer: the 2008 A3 benefits from the engineering responses enacted after 2006 and does not represent the most problematic year in the generation, but the persistent Air Bag complaint concentration and ongoing TSB volume indicate this is not a model without known concerns—budget accordingly for inspection and resolution of airbag-related components before purchase.

3
Open recalls
NHTSA campaigns
478
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
43
Owner complaints
2 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 43 complaints on record, top 8 components.

Air Bags23
Power Train13
Electrical System,Fuel/Propulsion System1
Structure1
Air Bags,Unknown Or Other1
Engine & Engine Cooling1
Suspension1
Engine & Engine Cooling,Vehicle Speed Control1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 3 campaigns on record for this vehicle.

18V082000Air Bags:Frontal:Driver Side:Inflator ModuleReported 30/01/2018

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2006-2013 Audi A3, 2007-2009 A4 Cabriolet and S4 Cabriolet, 2008 RS4 Cabriolet, 2009-2012 Q5, and 2010-2012 Audi A5 Cabriolet and S5 Cabriolet… Remedy: Audi will notify owners, and dealers will replace the driver's frontal air bag inflator with an alternative inflator, free of charge. The recall began February 23, 2018. Owners…

16V079000Air Bags:Frontal:Driver Side:Inflator ModuleReported 10/02/2016

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2006 Volkswagen Passat sedans and wagons, 2005-2013 Audi A3, and 2006-2009 Audi A4 Cabriolet vehicles. Upon deployment of the driver's… Remedy: Volkswagen will notify owners, and dealers will replace the driver's frontal air bag inflators, free of charge. The recall began March 2017. Volkswagen owners may contact…

Technical service bulletins NHTSA · verified

Showing 5 of 478 bulletins on record with NHTSA.

BulletinDateComponentSummary
A9124632044694_32024-02-07EquipmentThis bulletin provides information pertaining to MMI Navigation database concerns.
A9123062024323102023-12-21Electrical SystemThis bulletin provides information when the parking assistance provides false warnings.
A9023562032113_82023-11-16Electrical SystemThis bulletin provides general information about the outside air temperature reading.
A0023812070568_22023-11-07EquipmentThis bulletin provides information on the VAS 611 015 PICO-NVH tool for professional…
A9423672071954_12023-10-30Exterior LightingThis bulletin provides information pertaining to when there are foreign objects inside of…

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 A3. 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.

Reference guides

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

Frequently asked

How much oil does the 2008 A3 take?

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

Does the 2008 A3 have open recalls?

NHTSA lists 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the A3 get?

EPA figures are 22 city / 29 highway / 25 combined mpg.