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Audi A4 B6 (2002-2008)
Technical Articles

Welcome to our Audi A4 Technical Article directory. We've gathered a vast collection of useful articles to help you perform many repairs and upgrades on your Audi A4. Save money by doing your own work and perform the repairs using the information we've provided here. Can't find what you're looking for? Try our Search Engine at the top of the page, or hop over to one of our Enthusiast Forums - focusing on repair and maintenance projects for all Audis!
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Jump to: Basics | Engine | Brakes | Fuel Injection | Suspension | Transmission | Electrical | Exhaust | Cooling System | Body & Interior

 Basics & Essentials
Removing the Engine Covers
Most work on the engine will involve removing the covers, this article shows you how.
     Applies to: Audi A4 1.8 T (2002-08)
Wiper Blade Replacement
Don't wait until the weather turns bad to replace your wiper blades
     Applies to: Audi A4 1.8 T (2002-08)
Under Body Tray Removal
You will need to remove the under trays to perform most work on the motor, let this article show you how.
     Applies to: Audi A4 1.8 T (2002-08)
Air Filter Replacement
New to working on your Audi? Not sure where the air filter is? Check out this simple article.
     Applies to: Audi A4 1.8 T (2002-08)
Oil Change
The most common task to do on your Audi A4 is explained thoroughly in this helpful article.
     Applies to: Audi A4 1.8 T (2002-08)
 Engine
Coil and Spark Plug Replacement
Replacing your plugs and checking your coils should be part of your regular maintenance
     Applies to: Audi A4 1.8 T (2002-08)
MAF Sensor Replacement
This article shows you how to replace your MAF Sensor
     Applies to: Audi A4 1.8 T (2002-08)
Oil Level Sensor Replacement
Replace the oil level sensor with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Crankshaft Positioning Sensor Replacement
Learn how to change your Crankshaft Positioning Sensor or Engine Speed Sensor with these step by step instructions
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Accessory Belt Tensioner
Install a new tensioner when ever you change your timing belt
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Head Gasket
How to replace your head gasket in step by step instructions
     Applies to: Audi A4 1.8 T (2002-08)
Idler Pulley Replacement
High pitched squeal coming from the engine? Check your idler pulley before it leaves you stranded at the side of the road
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Timing Belt
Change out the timing belt with the help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Timing Belt Tensioner Replacement
Install a new tensioner when ever you change your timing belt
     Applies to: Audi A4 1.8 T (2002-08)
Auxiliary Air Pump Replacement
Problems passing a SMOG test, check your auxiliary air pump
     Applies to: Audi A4 1.8 T (2002-08)
Crankcase Ventilation Hoses
Check and replace faulty crankcase ventilation hoses with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Fixing Common Vacuum Leaks
A poor running engine can be caused by a simple vacuum leak, this article will help you track it down
     Applies to: Audi A4 1.8 T (2002-08)
Replacing your Accessory Belt
Change out the accessory belt with the help from this article.
     Applies to: Audi A4 1.8 T (2002-08)
 Brakes
ABS Sensor Replacement
Fix problems with your ABS system by replacing the sensors
     Applies to: Audi A4 1.8 T (2002-08)
Front Brake Pad Replacement
Visually inspect your pads every 25,000 miles and replace them as soon as the wear light comes on
     Applies to: Audi A4 1.8 T (2002-08)
Front Brake Rotor Replacement
If your front brakes are grabbing or pulsing you are probably in need of new rotors
     Applies to: Audi A4 1.8 T (2002-08)
Front Brake Caliper Replacement
Replace your front brake calipers with the help from this article
     Applies to: Audi A4 1.8 T (2002-08)
ABS Control Module Replacement
Get your ABS system working correctly by replacing the control unit
     Applies to: Audi A4 1.8 T (2002-08)
Brake Booster Vacuum Pump Replacement
Replacing your brake booster vacuum pump is explained in the article
     Applies to: Audi A4 1.8 T (2002-08)
Brake Pressure Sensor Replacement
Replace your brake pressure sensor with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Brake Servo Pressure Sensor Replacement
If you start getting a different brake feel your brake servo pressure sensor may be the problem
     Applies to: Audi A4 1.8 T (2002-08)
Parking Brake Cable Adjusting and Replacement
This article will show you how to install and perform the initial adjustment on your parking brake
     Applies to: Audi A4 1.8 T (2002-08)
Rear Brake Rotor Replacement
Replace your rear brake rotor with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Brake Fluid Level Sensor Replacement
Checking and replacing the brake fluid level sensor should be part of your regular brake system check up
     Applies to: Audi A4 1.8 T (2002-08)
Brake Master Cylinder and Resevoir
Replace the master cylinder and reservoir help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Brake Booster Replacement
Get back to proper brake pedal effort by replacing your brake booster
     Applies to: Audi A4 1.8 T (2002-08)
 Fuel Injection
Throttle Body Cleaning Replacement
Improve the performance and mileage of your car by giving your throttle body a good cleaning
     Applies to: Audi A4 1.8 T (2002-08)
Fuel Pump and Level Sender Replacement
Restore proper fuel pressure by replacing your fuel pump
     Applies to: Audi A4 1.8 T (2002-08)
 Suspension
Drive Axle Replacement
If your CV joints go bad you will need to replace the drive axle
     Applies to: Audi A4 1.8 T (2002-08)
Front Wheel Bearing Replacement
Howling noise from the front wheels may mean it is time to replace the wheel bearing
     Applies to: Audi A4 1.8 T (2002-08)
Changing Your Torque Mount Bushing
Stop unwanted engine torque movements by replacing your torque bushing
     Applies to: Audi A4 1.8 T (2002-08)
Rear Wheel Hub and Bearing Replacement
Replace your rear wheel hub and bearing with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Front Lower Control Arms
Check your lower control links every 10,000 miles and replace at the first sign of failure
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Rear Springs
Improve your handling by changing rear springs
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Rear Suspension Bushings
This article covers replacing all the rear suspension bushings
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Rear Shocks
Improve your handling by changing rear shocks
     Applies to: Audi A4 1.8 T (2002-08)
 Transmission
Automatic Transmission Oil and Filter Replacement
Get your transmission running like new by changing the fluid and filter
     Applies to: Audi A4 1.8 T (2002-08)
Differential Fluid
Make sure your differential fluid is at the proper level to insure proper operation and cooling of the differential
     Applies to: Audi A4 1.8 T (2002-08)
 Electrical
Outside Air Temperature Sensor Replacement
Trouble with your HVAC system? Don't forget to check or replace the outside air temperature sensor
     Applies to: Audi A4 1.8 T (2002-08)
How to Replace Your Alternator
Don't get stranded by a poorly operating electrical system. Replace your alternator at the first signs of trouble
     Applies to: Audi A4 1.8 T (2002-08)
Voltage Regulator Replacement
Replace your voltage regulator with the help of this article
     Applies to: Audi A4 1.8 T (2002-08)
Steering Column Stalks and Switch Replacement
Fix faulty steering column switches with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Headlight Switch
Get working lights again by replacing your headlight and dimmer switches
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Ignition Switch and Lock Cylinder
Replace your lock cylinder or ignition switch at the first signs of trouble
     Applies to: Audi A4 1.8 T (2002-08)
Radio Removal
Remove or upgrade your radio with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Brake Light Switch Replacement
Get your brake lights working again by replacing your brake light switch
     Applies to: Audi A4 1.8 T (2002-08)
Third Brake Light Replacement
Don't get hit from behind because of a non functioning third brake light. Replace your third brake light with these step by step instructions
     Applies to: Audi A4 1.8 T (2002-08)
 Exhaust
Catalytic Converter Replacement
Can't pass a SMOG test and need to replace the catalytic converter? This article will show you how
     Applies to: Audi A4 1.8 T (2002-08)
Muffler Replacement
Need to replace a noisy muffler? This article will show you how
     Applies to: Audi A4 1.8 T (2002-08)
Cooling System
Coolant Expansion Tank Replacement
Replace your old and leaking coolant tank with the help of this article
     Applies to: Audi A4 1.8 T (2002-08)
Windshield Washer Reservoir And Pump Replacement
See out your windshield by replacing your leaky reservoir or broken windshield washer fluid pump
     Applies to: Audi A4 1.8 T (2002-08)
Coolant Temperature Sensor Replacement
Getting faulty readings from your coolant temperature sensor. Replace it with help from Pelican Parts
     Applies to: Audi A4 1.8 T (2002-08)
Shroud and Fan Replacement
If your cooling fans are starting to make unusual sounds it might be time to replace them
     Applies to: Audi A4 1.8 T (2002-08)
Radiator Replacement
Replace a failing radiator with these step by step instructions
     Applies to: Audi A4 1.8 T (2002-08)
Thermostat Replacement
Keep your engine running at the proper temperature by replacing your thermostat
     Applies to: Audi A4 1.8 T (2002-08)
Radiator Hoses Replacement
Replace your coolant hoses before they leave you stranded
     Applies to: Audi A4 1.8 T (2002-08)
Water Pump Replacement
Replace your leaking or broken water pump with the help of this article
     Applies to: Audi A4 1.8 T (2002-08)
 Body & Interior
Glove Box Removal
Remove your glove box with these easy step by step instructions
     Applies to: Audi A4 1.8 T (2002-08)
Removing Your Blower Motor and Resistor
Replace your blower motor and resistor with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Removing Your Wheelwell Liners
You need to remove the wheelwell liners to get access to many things. Learn how here.
     Applies to: Audi A4 1.8 T (2002-08)
Headlight Assembly and Bulb Replacement
See better by replacing your head light bulbs with the help of this article
     Applies to: Audi A4 1.8 T (2002-08)
Taillight Assembly and Bulb Replacement
Let the world know you're out in front by replacing your tail light bulbs with the help of this article
     Applies to: Audi A4 1.8 T (2002-08)
Instrument Cluster Removal
Replace your instrument cluster with these step by step instructions
     Applies to: Audi A4 1.8 T (2002-08)
Hood And Trunk Shock Replacement
Tired of have the hood or hatch fall on your head? Replace the shocks with the help of this article
     Applies to: Audi A4 1.8 T (2002-08)
Rear Bumper Removal
Freshen up that tired or damaged rear bumper cover
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Shift Knob
Freshen up the look of your interior with a new shift knob
     Applies to: Audi A4 1.8 T (2002-08)
Climate Control Removal
Replace your climate control unit is easy with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Removing Your Rear Door Panels
This article will show you how to remove your rear door panels
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Rear Window Regulator
Get your windows working again by replacing the worn out rear window regulators
     Applies to: Audi A4 1.8 T (2002-08)
Removing Your Steering Wheel and Air Bag
Safely remove your steering wheel and air bag
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Rear Door Locks
If your rear door locks fail this article will show you how to replace them
     Applies to: Audi A4 1.8 T (2002-08)
Center Armrest Replacement
Replace a broken or damaged armrest with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Rear Door Component Carrier
The rear door component carrier must be removed to work on any of the systems in the door and this article will show you how
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Rear Door Handles
Replace your rear door handles with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Seat Removal
Remove your front and rear seats with the step by step instruction in this article
     Applies to: Audi A4 1.8 T (2002-08)
Rear Interior Panel Removal
To service your rear bumper you will need to remove the rear interior trim pieces
     Applies to: Audi A4 1.8 T (2002-08)
Removing Your Center Console
Remove the center console with these step by step instructions
     Applies to: Audi A4 1.8 T (2002-08)
Removing Your Front Door Panels
This article will show you how to remove your front door panels
     Applies to: Audi A4 1.8 T (2002-08)
Rear View Mirror Replacement
Replace a broken mirror or the complete housing with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Front Door Component Carrier Removal
The front door component carrier must be removed to work on any of the systems in the door and this article will show you how
     Applies to: Audi A4 1.8 T (2002-08)
Front Door Panels Switch Replacement
Replacing your door switches is made easy with help from this article
     Applies to: Audi A4 1.8 T (2002-08)
Front Door Tumbler and Handle Replacement
The front driver door tumbler is the only tumbler on the car so replace it at the first signs of trouble
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Rear Door Locks
If your front door locks fail this article will show you how to replace them
     Applies to: Audi A4 1.8 T (2002-08)
Replacing Your Front Window Regulator
Get your front windows working again by replacing the worn out window regulators
     Applies to: Audi A4 1.8 T (2002-08)
Drivers Lower Storage Compartment Removal
You will need to remove the driver lower storage compartment to service the pedal box, switches and sensors under the dash; this article will show you how
     Applies to: Audi A4 1.8 T (2002-08)
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