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2000 Audi A6/Quattro

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2000 A6/Quattro.

The 2000 Audi A6/Quattro, a mid-size luxury sedan equipped with the brand’s signature all-wheel-drive system, calls for 4.2 quarts of 5W-30, 5W-40, or 10W-30 API oil. This model year sits within a generation that has drawn 153 owner complaints, with the electrical system emerging as the most frequently cited trouble spot, alongside four official recalls, signaling a reliability record that warrants thorough pre-purchase inspection.

Model year202520242023202220212020200520001999

Quick specs

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

Engine oil capacity4.2 qtOEM · verified
Engine oil type5W-30 / 5W-40 / 10W-30 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 48 · 570 CCA battery, OE oil filter 078115561J. Note the factory serpentine belt is now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. 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 48 · 570 CCAOEM · verified
Tail / brake / turn15AOEM · verified
Tire sizeP215-55R16OEM · verified
Wheel / rim7-J inOEM · verified

OE service part numbers OEM · verified

Engine oil filter078115561J
Engine air filter058133843
Fuel filter1H0201511A
Spark plug101000035HJ
Front wiper blades4A0955425B alt 4B0955425
Serpentine belt078903137BC discontinued
Thermostat078121113G
Cabin air filter4B0819439C

Service quick specs OEM factory data

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

This engine holds 4.2 qt of 5W-30 / 5W-40 / 10W-30 API engine oil, SYNTHETIC · 75W-90 · GL-4 · GL-5 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.

Lubricants & capacities

Brake FluidDOT 4
Differential Gear OilSYNTHETIC · 75W-90 · GL-4 · GL-5
Differential Gear Oil Capacity3.2 Pints
Differential Gear Oil Capacity1.7 Pints
Engine Oil Capacity4.2 qt
Engine Oil Capacity6.9 qt
Engine Oil5W-30 · 5W-40 · API
Engine Oil Capacity6.0 qt

Engine torques

Camshaft Bearing/Carrier Cap Bolts or Studs7 ft-lbs
Camshaft Bearing/Carrier Cap Bolts or Studs7 ft-lbs
Camshaft Bearing/Carrier Cap Bolts or Studs11 ft-lbs
Intake Manifold to Engine Bolts7 ft-lbs
Exhaust Manifold to Cylinder Head Bolts18 ft-lbs
Intake Manifold to Engine Bolts7 ft-lbs
Exhaust Manifold to Cylinder Head Bolts18 ft-lbs
Intake Manifold to Engine Bolts7 ft-lbs

Chassis torques

Lug Nuts89 ft-lbs
Transfer Case Fill Plug26.0 ft-lbs
Transfer Case Drain Plug26.0 ft-lbs
Rear Wheel Hub148 ft-lbs

Ignition

Cylinder Firing Order1-4-3-6-2-5
Cylinder Firing Order1-5-4-8-6-3-7-2
Curb Idle Speed (No Load)700 rpm
Curb Idle Speed Variance (No Load)50 rpm
Curb Idle Speed (No Load)AWD: 720, FWD: 770 rpm
Curb Idle Speed Variance (No Load)50 rpm
Ignition Coil Primary Resistance0.3-0.5 ohms
Spark Plug ManufacturerVW

Battery & A/C

RefrigerantR134a
Oil GroupPAG
Standard BCI Group Number48
Standard BCI Cranking Performance570 cca
Standard BCI Group Number94R Turbo
Standard BCI Cranking Performance640 Turbo cca
Standard BCI Group Number48
Standard BCI Cranking Performance570 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 Temperature188 °F
Regulated Fuel System Pressure (Without Vacuum)55.0-61.0 psi
Regulated Fuel System Pressure (With Vacuum)46.0-5.0 psi

Brakes

Torque to Knuckle89 ft-lbs / 95 ft-lbs
Torque Caliper to Bracket26 ft-lbs / 18 ft-lbs
Torque to Knuckle89 ft-lbs / 95 ft-lbs
Torque Caliper to Bracket26 ft-lbs / 18 ft-lbs
Rotor Nominal Thickness From1.181 in / 0.394 in / 0.984 in / 0.866 in
Rotor Nominal Thickness To1.181 in / 0.394 in / 0.984 in / 0.866 in
Rotor Discard at or Under1.102 in / 0.315 in / 0.906 in / 0.787 in
Rotor Nominal Thickness From1.181 in / 0.394 in / 0.984 in / 0.866 in

Multi-step torque procedures OEM · verified

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
Flex or Driveplate Bolts — tightening sequence 1 stages
144 ft. lbs., Step 2: 9044 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
144 ft. lbs., Step 2: 9044 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
144 ft. lbs., Step 2: 18044 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
130 ft. lbs., Step 2: 18030 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
144 ft. lbs., Step 2: 9044 ft. lbs
Main Bearings — tightening sequence 1 stages
144 ft. lbs., Step 2: 18044 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 8,000 mi; spark plugs every 32,000 mi.

Every 5,000 miBrake Shift Interlock Solenoid (inspect)
At 8,000 miBrake Hydraulic System (inspect fluid level) · Engine Coolant System (leak inspection)
Every 8,000 miBrake Hydraulic System (inspect fluid level) · Engine Oil (drain & refill) · Engine Oil Filter (replace)
Every 10,000 miTransmission Assembly (inspect fluid level)
Every 16,000 miAxle Shaft Oil Seal (inspect) · Battery (inspect electrolyte level) · Brake Hydraulic System (inspect fluid level) · Brake System (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace)
Every 32,000 miEngine Air Filter Element (replace) · Power Steering System (inspect) · Spark Plugs (replace) · Suspension System (inspect)
Every 40,000 miAir Conditioning Evaporator Case Drain (inspect)
Every 72,000 miDrive Belt (replace)
Every 90,000 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.

Owner complaints about the 2000 Audi A6/Quattro top in one area — the electrical system, 24 of 153 reports (16%), well ahead of the next concern. That matters, because the electrical system are also the target of recall 06V-198 on this vehicle — so the single most useful check before buying or servicing one is confirming it was actually performed. 4 of the reports describe a crash and 8 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.

4
Open recalls
NHTSA campaigns
34
Service bulletins
Manufacturer communications
4
ODI investigations
Office of Defects Investigation
153
Owner complaints
4 involved a crash · 8 a fire

Owner complaints filed with NHTSA, by component

All 153 complaints on record, top 8 components.

Electrical System24
Service Brakes, Hydraulic21
Fuel System, Gasoline12
Engine & Engine Cooling12
Tires12
Fuel/Propulsion System6
Suspension6
Steering6

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 4 campaigns on record for this vehicle.

20V056000Air Bags:Frontal:Driver Side:Inflator ModuleReported 31/01/2020

Volkswagen Group of America, Inc. (VW) is recalling certain 2000-2001 TT Roadster, 2000 TT Coupe, 1999 Audi A8, 1998-2000 Audi A6, and 1999-2000 Audi A4 vehicles equipped with Non-Azide Driver air bag Inflators (NADI)… Remedy: Dealers will replace the driver frontal air bag inflator with an alternative inflator when the parts become available, free of charge. Owner notifications were mailed September…

06V198000Electrical SystemReported 05/06/2006

ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH HALOGEN LOW BEAM HEADLIGHTS, CERTAIN CONNECTOR PINS IN THE HEADLIGHT SWITCH CONNECTOR COME INTO CONTACT WITH EACH OTHER CAUSING A SHORT CIRCUIT. NOTE: VEHICLES WITH XENON LOW… Remedy: DEALERS WILL REROUTE THE WIRING HARNESS BY INSTALLING A JUMPER WIRING HARNESS. THE RECALL BEGAN ON DECEMBER 16, 2006. OWNERS MAY CONTACT AUDI AT 1-800-822-2834.

Technical service bulletins NHTSA · verified

Showing 5 of 34 bulletins on record with NHTSA.

BulletinDateComponentSummary
A451510 2042048-2015-10-05Power TrainVehicle will not communicate with diagnostic scan tool or emissions test equipment…
37 14 31 20130022014-06-03Engine And Engine CoolingAs the sump pan gasket settles, the torque of the bolts decreases and the seal may leak…
371431201300252014-06-03Power TrainATF pan leaks
1310201828842013-09-05Back Over PreventionIf the vehicle?s engine experienced a serious mechanical problem, it is possible that…
1341202530332013-06-20Engine And Engine CoolingDiscontinuation and mixing of Audi-approved engine coolants.

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 48 batteryVehicles taking 4.2 qtEngine oil filter 078115561JEngine air filter 058133843Fuel filter 1H0201511ASpark plug 101000035HJ

Reference guides

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

Vehicle recalls & TSBsOBD-II trouble codesTorque specificationsMaintenance schedulesFluid capacities & specs

Frequently asked

How much oil does the 2000 A6/Quattro take?

4.2 qt of ENERGY CONSERVING OILS: 5W-30, 5W-40, 10W-30 OR 10W-40 API SL, EXCEPT ENGERGY CONSERVING OILS: 5W-50, 10W-50, OR 10W-60 API SL, per the factory manual.

Does the 2000 A6/Quattro have open recalls?

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