1. Place a wood block behind a rear wheel of the Audi S4 and raise the front end of the vehicle with a floor jack.2. Position jack stands under the front axle to support the vehicle and lower the car until the axle comes to rest on the jack stands.3. Remove the floor jack and use a lug wrench to undo the lugs on the front wheels.4. Take the front tires off the vehicle and set the tires and lug nuts in a safe place.5. Unfasten the screws that hold the underbelly tray in place with a screwdriver and remove the tray from under the car.6. Undo the screws that hold the wheel well liners...
How to Turbocharge the BMW 3 Series
1. Place your BMW 3 Series on a lift or elevate it on four jack stands. This will allow you to access the underside of the car where the turbocharger will need to be installed.2. Install the turbocharger after the exhaust headers and follow the installation instructions for the specific turbocharger unit that you've purchased.3. Route the boost lines from your turbocharger kit from the turbo to the components such as the blow-off valve, which release excess turbo pressure between uses.4. Complete the installation of the turbo by installing an aftermarket engine control unit or having a...
How to Troubleshoot a BMW That Is Burning Oil
1. Find the onboard diagnostic port in your BMW's interior. Inspect the top of your foot well on the driver's side and look for the rectangular female plug that is about two inches wide. It should be marked 'OBD' nearby or on its plastic cover, which may or may not be present depending on the model of your BMW.2. Connect the OBD II code reader to the diagnostic port and turn your BMW on. If you can, allow the engine to idle; however, if the engine won't start, or if you are afraid to start it due to low oil pressure, you can simply turn on the electronics by twisting the ignition to the second...
How to Repair a Mercedes Benz E Class 320
1. Locate the starter by tracing the positive battery cable, which splits and travels to the alternator and starter motor. You will know that the starter needs replacing if your battery is still working, but you only hear a 'whirring' and a click whenever you turn your ignition key. Disconnect the negative battery cable and unhook the electrical connection leading to the starter. Use a socket wrench to remove the two mounting bolts for the starter and unscrew the brass nut securing the positive battery cable feed. Insert a new starter into the Mercedes E Class 320.2. Replace the brake pads...
How to Reset the Check Engine Light on a 1990 300E
1. Open the plastic battery cover to expose the battery. Identify the negative terminal, which is marked with a minus symbol, and remove the attached cable using a crescent wrench.2. Wait at least 15 minutes, then reverse the steps to reinstall the cable. Confirm that the nut is tight enough to hold the cable in place and ensure a strong electrical connection.3. Start the engine and allow the Mercedes to idle for 5 minutes before driving. This gives the computer system time to recalibrate and ensures the engine will run smoothly when driven. Keep an eye on the dash to see if the light returns....
How to Hook Up a Turbo Timer
1. Unhook the negative terminal of the car's battery before you begin installation. This is done by loosening the clamp on the black terminal of the battery, then lifting off the cable. This ensures user safety, as well as does away with the risk of electrical malfunction during installation.2. Remove the plastic covers over the steering column and center console of your vehicle. This will vary depending on make and model. Often the covers are held on by plastic clips and/or Phillips-head screws. Search along the underside for all fasteners. Once removed, the plastic covers should lift free,...
How to Reset the Oil Light on a BMW 325i
1. Put the key in the ignition. Hold the trip odometer button and simultaneously turn the key to the first position, which turns on the car battery. The trip odometer is located in the instrument panel.2. Hold the odometer button down until you see wording similar to 'Oil Change' and 'Reset' in the display screen on the speedometer, then release the odometer button.3. Press the odometer button again until 'Reset' starts to flash, then release the button.4. Press the button again quickly while 'Reset' is flashing to reset the oil lig...
How to Set the Clock on a #039;99
1. Turn the ignition key one notch to position one.2. Press the On Board Computer button(located on the left turn signal stalk) until the clock appears on the instrument panel under your speedometer.3. On the instrument cluster there are two little black knobs. Twist the one on the RIGHT. Move it clockwise and the clock will go forward, twist anti-clockwise, and it will go backwards.4. NOTE**The On Board Computer may not be an option on all 3 Series BMWs. This article is for a 3 series equipped with this option. If you do not have this option, please refer to your manual on how to set...
How to Remove the BMW A/C Knob
1. Grasp the edges of the left AC knob with your fingertips and gently pry the housing away from the knob itself until the housing pops off.2. Unscrew the screw found underneath the knob housing with a No. 5 screwdriver. Keep the screw handy for your replacement or re-attached knob.3. Repeat the above procedure with the right knob, then push the climate-control panel forward and slide it downward to remove the knob housing. Replacement knobs can now be fitted into the panel, or the original knobs re-attached if they are in need of repa...
How to Change Fog Lamps on a BMW 540
1. Remove the plastic mesh located just to the right of the left fog-lamp housing and to the left of the right housing. Locate the small pin screws on the inner, top part of the fog-lamp assemblies. Use the flat-head screwdriver to carefully pull the small, inner round tab on the screw down a little.2. Pull the larger round tab located around the smaller tab down as well to remove the pin screws. Set the screws aside so they are not misplaced. Pull the top part of the mesh away from the car so that it pivots on the base. Remove the mesh piece and set it aside.3. Remove the 7 mm bolts that...
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