Maintenance Information Audi A6 C4

VIN LOCATION

The Vehicle Identification Number (VIN) is located on the left side of the dash panel at the base of the windshield. The VIN chart explains the code characters.

VIN CODE ID EXPLANATION

Numbers preceding the explanations in the legend below refer to the sequence of characters as listed on VIN identification label. See VIN example below.

VIN Code ID Explanation. Scheme 1

SEVERE & NORMAL SERVICE DEFINITIONS

Note. Use the Severe Service schedule if the vehicle to be serviced is operated under ANY (one or more) of these conditions

Service is recommended at mileage intervals based on vehicle operation. Service schedules are based on the following primary operating conditions

Normal Service

1. Driven More Than 10 Miles Daily
2. No Operating Conditions From Severe Service Schedule

Severe Service (Unique Driving Conditions)

1. Short Trips In Freezing Temperatures
2. Towing Or Heavily Loaded
3. Continuous Mountain Driving
4. Severe Dust Conditions
5. Hot Weather, Stop-And-Go Driving
6. Extensive Idling Conditions (Taxi Or Delivery Type Service)

CAMSHAFT TIMING BELT

The condition of camshaft drive belts should always be checked on vehicles which have more than 50,000 miles. Although some manufacturers do not recommend belt replacement at a specified mileage, others require it at 60,000-100,000 miles. A camshaft drive belt failure may cause extensive damage to internal engine components on most engines, although some designs do not allow piston-to-valve contact. These designs are often called "Free Wheeling".

Many manufacturers changed their maintenance and warranty schedules in the mid-1980's to reflect timing belt inspection and/or replacement at 50,000-60,000 miles. Most service interval schedules in this manual reflect these changes.

Belts or components should be inspected and replaced if any of the following conditions exist

1. Cracks Or Tears In Belt Surface
2. Missing, Damaged, Cracked Or Rounded Teeth
3. Oil Contamination
4. Damaged Or Faulty Tensioners
5. Incorrect Tension Adjustment

Replace camshaft timing belt at 90,000 mile intervals.

BRAKE FLUID SERVICE

Replace brake fluid every 2 years regardless of mileage.

Scheme 2

Scheme 3

SERVICE LABOR TIMES

Note. Labor times are provided, where available, within appropriate SERVICE INTERVAL table in SCHEDULED SERVICES article.

LUBRICATION SPECIFICATIONS

Note. Audi does not recommend the use of oil additives as it may adversely affect the warranty. Always use Audi Hydraulic Oil G002000 when adding or replacing power steering fluid. DO NOT use ATF in the power steering system.

TIRE SIZE & INFLATION SPECIFICATIONS

Tire specifications are imprinted on the tire sidewall. All models use tire size 205/60 15VR. The required cold tire inflation pressures are listed on a sticker on the inside of fuel filler door and must never exceed the maximum value molded on the tire side wall. Before replacing original tires on vehicle with all season or radial snow tires, consult an Audi dealer for technical information on the required specifications. Snow tires should be mounted on all four wheels on FWD vehicles, and must be mounted on all four wheels for vehicles with 4WD. Snow chains may be used on the front wheels only. The compact spare tire is intended for temporary use only; it is limited to 50 mph (80 km/h) and must be inflated to 60 psi (4.22 kg/cm 2 ).

WHEEL RIM & BOLT SPECIFICATIONS

The original wheel rims on the vehicle comply with all applicable Federal Motor Vehicle Safety Standards. Before replacing original wheel rims, consult an Audi dealer for technical information regarding wheel rims and bolt specifications. Tighten all wheel nuts to 80 ft. lbs. (108 N.m). Always tighten wheel lug nuts in a crisscross pattern.

BATTERY SPECIFICATIONS

Battery is located under the rear seat. Under normal operating conditions, battery delivered with vehicle is maintenance-free. However, at high outside temperature it is advisable to check battery fluid level at regular intervals through the transparent battery housing. Fluid level should always be between the MIN and MAX marks in each cell. Battery specifications are listed on the battery housing. Replacement battery must meet all requirements and dimensions as specified on original battery.

RADIATOR FAN & CAP

REPLACING BLOWN FUSES

Before replacing a blown fuse, remove ignition key, turn off all lights and accessories to avoid damaging the electrical system. Be sure to use fuse with the correct indicated amperage rating. The use of an incorrect amperage rating fuse may result in a dangerous electrical system overload.

SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)

Note. See the AIR BAGS article in the ACCESSORIES/SAFETY EQUIPMENT Section.

Modifications or improper maintenance, including incorrect removal and installation of the Supplemental Restraint System (SRS), can adversely affect system performance. DO NOT cover, obstruct or change the steering wheel horn pad in any way, as such action could cause improper function of the system. Use only plain water when cleaning the horn pad. Solvents or cleaners could adversely affect the air bag cover and cause improper deployment of the system.

WARRANTY INFORMATION

BASIC NEW CAR LIMITED WARRANTY

Everything is covered for 3 years 50,000 miles, whichever occurs first, provided the vehicle is maintained and used in accordance with the instructions for care and use in the Audi Owner's Manual. Warranty begins on the date vehicle is delivered or put in use, whichever occurs first. Covers the cost to all parts and labor needed to repair or adjust any item (except tires) on the vehicle that have been proven defective in material or workmanship under normal use. If a tire is defective, a credit will be given towards the purchase of new tire. The amount of credit is equal to the percentage of original tread depth remaining, multiplied by the suggested retail price of an equivalent new tire.

PERFORATION WARRANTY

Covers any repair or replacement of body-sheet metal parts that is perforated due to corrosion as a result of defects in workmanship or material. Warranty begins on date vehicle is delivered or first put in use, whichever occurs first and lasts for 10 years regardless of mileage.

EMISSION CONTROL SYSTEM WARRANTY (EXCEPT CALIFORNIA)

Manufacturer warrants its emission components in vehicle to be free of defects in material and workmanship and that vehicle is designed, built and equipped to conform at time of sale to all applicable Federal standards for emission control system. Warranty begins on the date vehicle is delivered or first put in use and is effective for 5 years or 50,000 miles, whichever occurs first.

EMISSION PERFORMANCE WARRANTY (EXCEPT CALIFORNIA)

Vehicle is warranted to comply to all applicable emissions standards as judged by an EPA-approved State Inspection and Maintenance Test for 24 months or 24,000 miles, whichever occurs first. Listed below are the primary components affecting vehicle's emission control system. The components listed are covered for 5 years or 50,000 miles, whichever occurs first. Warranty begins on date vehicle is delivered or first put in use, whichever occurs first.

1. Activated Charcoal Filter
2. Air Flow Sensor Assembly
3. Altitude Compensator
4. Catalytic Converter
5. Coasting Fuel Cut-Off Valve And Control Unit
6. Electronic Control Unit And Power Supply Relay
7. Electronic Feedback Controls, Sensors, Switches And Valves
8. Evaporative Purge Control Valve
9. Exhaust Gas Recirculation System
10. Exhaust Manifold And Gaskets
11. Exhaust Pipe-To-Catalytic Converter
12. Expansion Tank
13. Filler Neck Restrictor
14. Frequency Valve
15. Fuel Distributor Assembly And Associated Controls
16. Fuel Filler Cap And Gaskets
17. Fuel Injectors, Fuel Injectors Line And Gaskets
18. Fuel Tank
19. Gravity Check Valve
20. Idle Stabilizer And Control Unit
21. Knock Sensor And Control Unit
22. Crankcase Breather
23. Spark Advance Unit And Associated Parts
24. Turbocharger And Wastegate
25. Emission-Related Hoses, Gaskets, Clamps And Accessories

EMISSION CONTROL SYSTEMS WARRANTY (CALIFORNIA)

Emission control system in vehicle is warranted to be free of defects in material and workmanship, and that vehicle is designed, built and equipped to conform at time of sales to applicable requirements of the California Air Resources Board (CARB). Warranty period is for 3 years/50,000 miles. Warranty begins on date vehicle is delivered or put in use, whichever occurs first.

EMISSION PERFORMANCE WARRANTY (CALIFORNIA)

Warrants vehicle to comply to all applicable emission standards as judged by the EPA and CARB approved emissions test. Should the vehicle fails to comply to the required emissions standards, manufacturer will make any repairs or replacements necessary for the vehicle to pass the required emissions test, provided the vehicle is maintained and used in accordance with the instructions for care and use in the Audi Owner's Manual. The warranty period is 3 years/50,000 miles and begins on date vehicle is delivered or put in use, whichever occurs first.

The following emissions system components are covered under the California Emission Warranties for 7 years or 70,000 miles whichever occurs first. If another part fails due to the failure of a warranted component, both parts will be covered.

1. Air Flow Sensor Assembly
2. Catalytic Converter
3. Electronic Control Unit
4. Exhaust Manifold
5. Fuel Distributor Assembly And Associated Controls
6. Idle Stabilizer Control Unit
7. Ignition Distributor
8. Intake Manifold
9. Intercooler
10. Knock Sensor Control Unit
11. Throttle Valve Housing
12. Turbocharger
13. Wastegate

FUSE PANEL LOCATIONS

The fuses are arranged in one centralized unit. The fuse/relay box is located in the engine compartment and is protected by a cover.

FUSE PANEL IDENTIFICATION - 1995

Fuse panel identification is not available at time of publication for 1995 models.

Scheme 4

Fuse & Circuit Breaker Identification

1. 1 - 10 Amp High Beam Right, High Beam Indicator Light
2. 2 - 10 Amp High Beam Left
3. 3 - 10 Amp Low Beam Right
4. 4 - 10 Amp Low Beam Left
5. 5 - 5 Amp Right Tail, Parking & Sidemarker Lights, License Plate Light, Daytime Running Lights (Canada)
6. 6 - 5 Amp Left Tail, Parking & Sidemarker Lights
7. 7 - 5 Amp Illumination Of: Climate Control, Ashtray & Instrument Cluster
8. 8 - 15 Amp Courtesy Lights, Clock, Seat & Mirror Memory Control Unit
9. 9 - 10 Amp Brakelights
10. 10 - 15 Amp Flashers
11. 11 - 30 Amp Climate Control System (Blower)
12. 12 - 30 Amp Rear Window Defog, Mirror Heating
13. 13 - 25 Amp Wiper Motor, Turn signals, A/C Trans Fluid Temp Switch, Sliding/Prop-Up Roof
14. 14 - 15 Amp Back-Up Lights, Cruise Control, Multiple Sensor, Washing Nozzle, Heating, A/T, Differential Lock (100 Quattro), Warning Lights, Inf. Remote Control
15. 15 - 5 Amp Instrument Cluster, Electric Mirrors, Airbag Warning Lights
16. 16 - 15 Amp Foglights, Rear Foglights
17. 17 - 20 Amp Fuel Pump
18. 18 - Not Used
19. 19 - 25 Amp Diagnostic, Horn
20. 20 - 5 Amp Cruise Control
21. 21 - 15 Amp Anti-Lock Brakes (ABS)