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2006 Audi A4/S4/Avant

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2006 A4/S4/Avant.

Body PASSENGER CAR

The 2006 Audi A4/S4/Avant, a passenger car, specifies a 4.3 qt oil capacity and calls for 5W‑30 / 5W‑40 API viscosity. Owner feedback for this model year logged 298 total complaints, with Exterior Lighting identified as the top complaint area. Four recalls were recorded, underscoring the limited but notable service interventions. Consequently, the 2006 iteration marks a point of relatively modest reliability in the broader A4/S4/Avant timeline.

Model year2008 2007 2006 2005 2004

Quick specs

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

Engine oil capacity4.3 qtOEM · verified

Engine oil type5W-30 / 5W-40 APIOEM · 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 94R · 640 CCA battery, OE oil filter 068115561B. 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 94R · 640 CCAOEM · verified

Tail / brake / turnSTOPOEM · verified

Tire size215-55R16OEM · verified

Wheel / rim7, 7.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter	068115561B alt 06D115475
Engine air filter	06C133843
Fuel filter	8E0201511L alt 4F0201511E
Spark plug	101000063AA alt 06H905601A
Battery	000915105AG alt 000915089J
Front wiper blades	4B1955425C alt 8H1955426C
Serpentine belt	06D903137E alt 06E903137J
Thermostat	06B121119C alt 06B121111K
Cabin air filter	8E0819439 alt 4B0819439C

Service quick specs OEM factory data

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

This engine holds 4.3 qt of 5W-30 / 5W-40 API engine oil, USE AUDI PART NO. G052190A2 in the differential, DOT 4 brake fluid. Torque lug nuts to 89 ft-lbs. The firing order is 1-5-4-8-6-3-7-2. 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 Fluid	Audi part number G060162A2
Automatic Transmission Fluid Capacity	8.5-11.0
Brake Fluid	DOT 4
Differential Gear Oil	SYNTHETIC · 75W-90 · GL-4 · GL-5
Differential Gear Oil Capacity	5 Pints
Differential Gear Oil	SYNTHETIC · 75W-90 · GL-4 · GL-5
Differential Gear Oil Capacity	3.2 Pints
Differential Gear Oil	USE AUDI PART NO. G052190A2

Engine torques

Camshaft Bearing/Carrier Cap Bolts or Studs	9 ft-lbs
Crankshaft Pulley and/or Damper Bolts	74 ft-lbs
Engine Flywheel Bolts	Long bolts
Intake Manifold to Engine Bolts	7.3 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	18 ft-lbs
Intake Manifold to Engine Bolts	7.3 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	15 ft-lbs
Intake Manifold to Engine Bolts	4 ft-lbs

Chassis torques

Lug Nuts	89 ft-lbs
Transfer Case Fill Plug	30.0 ft-lbs
Transfer Case Drain Plug	30.0 ft-lbs
Transfer Case Fill Plug	30.0 ft-lbs
Transfer Case Drain Plug	30.0 ft-lbs

Ignition

Cylinder Firing Order	1-3-4-2
Cylinder Firing Order	1-4-3-6-2-5
Cylinder Firing Order	1-5-4-8-6-3-7-2
Curb Idle Speed (No Load)	720 rpm
Curb Idle Speed Variance (No Load)	80 rpm
Spark Plug Manufacturer	VW
Spark Plug Gap	0.032 in
Spark Plug Torque	22.0 ft-lbs

Battery & A/C

Refrigerant	R134a
Standard BCI Group Number	94R
Standard BCI Cranking Performance	640 cca
Optional BCI Group Number	49
Optional BCI Cranking Performance	760 cca
Standard BCI Group Number	94R
Standard BCI Cranking Performance	640 cca
Optional BCI Group Number	49

Service checks

Pressure Test	14.5 psi
Radiator Cap Pressure Relief	20-23 psi
Thermostat Opening Temperature	------- °F
Pressure Test	14.5 psi
Radiator Cap Pressure Relief	20-23 psi
Thermostat Opening Temperature	188 °F
Pressure Test	14.5 psi
Radiator Cap Pressure Relief	20-23 psi

Brakes

Torque Caliper to Bracket	26 ft-lbs / 22 ft-lbs
Torque to Knuckle	55 ft-lbs / 140 ft-lbs / 147 ft-lbs
Minimum Pad Thickness	Front: 0.394; Rear: 0.276 front
Rotor Nominal Thickness From	0.394 in
Rotor Nominal Thickness To	0.394 in
Rotor Discard at or Under	0.315 in

Multi-step torque procedures OEM · verified

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

22 ft. lbs., Step 2: 90

22 ft. lbs

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

22 ft. lbs., Step 2: 90

22 ft. lbs

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

22 ft. lbs., Step 2: 90

22 ft. lbs

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

16 ft. lbs., step 2: 45

16 ft. lbs

Cylinder Head — tightening sequence 2 stages

1	29.5 ft. lbs.	29.5 ft. lbs
2	180 degrees	180 degrees

Cylinder Head — tightening sequence 3 stages

1	29.5 ft. lbs.	29.5 ft. lbs
2	90 degrees	90 degrees
3	90 degrees	90 degrees

Flex or Driveplate Bolts — tightening sequence 1 stages

44 ft. lbs. Step 2: 90

44 ft. lbs

Engine Flywheel Bolts — tightening sequence 1 stages

44 ft. lbs., Step 2: 180

44 ft. lbs

Engine Flywheel Bolts — tightening sequence 1 stages

44 ft. lbs., Step 2: 90

44 ft. lbs

Engine Flywheel Bolts — tightening sequence 1 stages

44 ft. lbs., Step 2: 45

44 ft. lbs

Main Bearings — tightening sequence 1 stages

48 ft. lbs., Step 2: 90

48 ft. lbs

Main Bearings — tightening sequence 1 stages

48 ft. lbs., Step 2: 90

48 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 55,000 mi.

At 5,000 mi	Brake System (inspect) · Headlamp Washer Nozzle (inspect) · Headlamp Washer System (inspect fluid level) · Tire & Wheel Assembly (inspect) · Windshield Washer System (inspect) · Windshield Wiper Linkage (lubricate)
Every 5,000 mi	Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate) · Windshield Washer System (inspect fluid level)
Every 10,000 mi	Brake System (inspect) · Headlamp Washer Nozzle (inspect) · Headlamp Washer System (inspect fluid level) · Tire & Wheel Assembly (inspect) · Windshield Washer System (inspect) · Windshield Wiper Linkage (lubricate)
At 15,000 mi	Air Intake Hose Debris Screen (clean) · Battery (inspect electrolyte level) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Door Stop (lubricate) · Driveshaft (inspect)
Every 20,000 mi	Air Intake Hose Debris Screen (clean) · Battery (inspect electrolyte level) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Door Stop (lubricate) · Driveshaft (inspect)
At 35,000 mi	Power Steering System (inspect fluid level)
Every 35,000 mi	Headlamp (inspect alignment)
Every 40,000 mi	Air Conditioning Evaporator Case Drain (inspect) · Engine Air Filter Element (replace) · Engine Air Filter Housing (clean) · Power Steering System (inspect fluid level) · Sunroof Assembly (inspect)
At 55,000 mi	Engine Air Filter Element (replace) · Engine Air Filter Housing (clean) · Spark Plugs (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 2006 Audi A4/S4/Avant dominate in one area — the exterior lighting, 140 of 298 reports (47%), well ahead of the next concern. None of this vehicle's 3 recall campaigns target the exterior lighting, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 9 of the reports describe a crash and 4 a fire — a small share of the total, but worth weighing against the exterior lighting 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

360

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

298

Owner complaints

9 involved a crash · 4 a fire

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

Rollover★★★★★

Owner complaints filed with NHTSA, by component

All 298 complaints on record, top 8 components.

Exterior Lighting140

Air Bags71

Electrical System,Exterior Lighting12

Power Train11

Unknown Or Other7

Vehicle Speed Control6

Engine5

Engine,Fuel/Propulsion System4

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 3 campaigns on record for this vehicle.

18V427000Air Bags:Frontal:Passenger Side:Inflator ModuleReported 22/06/2018

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2005-2008 Audi A4 Sedan, A4 Avant, S4 Avant and S4 Sedan, 2007-2008 RS4 Sedan, 2004 RS4 Cabriolet, 2007-2009 A4 Cabriolet and S4 Cabriolet, 2005-2011… Remedy: Audi has notified owners, and dealers will replace the passenger frontal air bag with an alternate remedy part, free of charge. The recall began June 29, 2018. Owners may contact…

17V032000Air Bags:Frontal:Passenger Side:Inflator ModuleReported 11/01/2017

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2009 Audi A4 Cabriolet, S4 Cabriolet, A6 Avant, A6 Sedan and S6 Sedan vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, the… Remedy: Audi will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began March 30, 2018. Owners may contact Audi customer service…

Technical service bulletins NHTSA · verified

Showing 5 of 360 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
A0023742052680_4	2023-10-04	Equipment	This bulletin provides information on the additional reporting requirements for safety…
DC_AudiRingsV12	2023-04-28	Equipment	Inside the Rings \| Volume 12, Spring 2023
TRMDMV_NM_Audi	2023-03-13	Air Bags	In conjunction with the New Mexico DMV, Audi will be sending Takata airbag recall…
TRMDMV_MA_Audi	2023-03-13	Air Bags	In conjunction with the Massachusetts DMV, Audi will be sending Takata airbag recall…
TRMDMV_CO_Audi	2023-02-13	Air Bags	In conjunction with the Colorado DMV, Audi will be sending Takata airbag recall reminder…

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 A4/S4/Avant. 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 94R battery Vehicles taking 4.3 qt Engine oil filter 068115561B Engine air filter 06C133843 Fuel filter 8E0201511L Spark plug 101000063AA

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 2006 A4/S4/Avant take?

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

Does the 2006 A4/S4/Avant have open recalls?

NHTSA lists 4 recall campaign(s) for this model year. Check your specific vehicle by VIN.

2006 Audi A4/S4/Avant

Quick specs

Fitment & sizes

OE service part numbers OEM · verified

Service quick specs OEM factory data

Lubricants & capacities

Engine torques

Chassis torques

Ignition

Battery & A/C

Service checks

Brakes

Multi-step torque procedures OEM · verified

Factory maintenance schedule OEM · verified

Reliability & federal safety record

Owner complaints filed with NHTSA, by component

Recalls NHTSA · verified

Technical service bulletins NHTSA · verified

Common OBD-II trouble codes

VIN tools

Vehicles with shared specs

Reference guides

Related vehicles

Other years

Frequently asked