How to Remove the Front Bumper of an Audi S4


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 in place with a screwdriver on both sides and remove the liners.
7. Detach the fog light grill. Pull it straight out by hand until you see the metal clips and push down on the clips with a screwdriver until the grill is completely loose.
8. Locate the long bumper retaining bolt on the bottom of the bumper, inside of the spot where the fog light grill sat.
9. Remove the bumper retaining bolt with a socket wrench and detach the weather stripping on the front of the car by hand, setting it aside.
10. Pull down on the front of the bumper by hand while pushing up on the back end and sliding the bumper forward to dislodge it from the frame.
11. Unfasten the clips on both sides that hold the bumper in place with a screwdriver. Slide the bumper forward until it is completely free of the vehicle frame.
12. Place a plastic bucket under the bumper and detach the washer fluid hose from the bumper, allowing the fluid to drain into the bucket.
13. Unhook the electrical connectors from the fog lights on the bumper and remove the bumper from the Audi S4.
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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 custom tune done by a tuning shop.
5. Replace the factory exhaust with a larger exhaust system that will allow combusted to exit the engine faster and will accommodate the additional horsepower produced by the turbocharger.
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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 'Accessories' position.
3. Turn on the OBD II code reader and allow it to scan for error codes. Keep your eye on the display of the code reader and write down any error codes that appear on the display.
4. Contact your local mechanic or BMW service center to cross-reference the list of error codes and find out what specific components of your BMW's engine are at fault and causing the oil to burn.
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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 on your E Class 320 by lifting the car with a floor jack and supporting it with jack stands. Remove the tires. Unbolt the caliper and unscrew the brake pad retaining bolt. Replace the brake pad and secure it by tightening the retaining bolt. Use a C-clamp to push the caliper piston back into place and reinstall the brake pad assembly. If the rotor is showing discoloration, bumps or grooves, remove the rotor and have it resurfaced at an auto parts store. Reinstall the rotor. Reattach the caliper to the rotor.
3. Fix oil leaks in your Mercedes Benz E Class 320. Check the oil level by wiping the dipstick clean and reinserting it into the dipstick tube. Pull the dipstick out again and locate the oil level indication using the 'max' and 'min' lines printed on the lower end of the dipstick. Pour in an oil additive as a thickening agent or use a heavier weight oil to help stop leaks. Replace the valve cover gasket by unbolting it from the lower valve cover. Pull out the old gasket and replace it with a new one. Use silicone to help create a tight seal between the upper and lower valve cover. Reinstall the top valve cover.
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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. If it does, then further repairs are in order to solve the underlying problem.
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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, exposing the vehicle's wiring harnesses.
3. Disconnect your vehicle's ignition harness. This is the wiring harness leading into the ignition's key slot. The ignition harness has male and female connection ports. Separate these by hand, and hook your turbo timer's wiring harness between the connections. The turbo timer's harness has a male and female end so that it will plug directly into the vehicle's stock harness.
4. Ground the turbo timer unit. This is done by running the turbo timer's ground wire to a grounding source. An easy choice is any secure connection to the car's chassis, easily reachable from the steering area of the dash. Wrap the exposed end of the ground wire around a screw or other secure connection to the chassis, and tuck all excess wiring into the dash. Secure with zip ties.
5. Run the turbo timer's parking brake wire through the dash, to the center console area. Splice it into your vehicle's parking brake switch. Do so by stripping roughly 5mm of the parking switch's insolation, then wrapping the bare end of the turbo timer's parking brake wire around the exposed parking switch. Crimp the spliced wires with the wire crimps supplied in the turbo timer kit. If for some reason your turbo timer kit didn't come with crimps, simply pinch the splice tight by hand then wrap with electrical tape.
6. Mount your turbo timer in desired location, and hook into the ignition harness. Tuck all excess wires into dash and center console, then secure with zip ties. Replace steering column/center console covers. Replace negative battery terminal. Start your vehicle and ensure that turbo timer unit turns on and has full functionality.
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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 light.
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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 the clock, or try this method, it may still work.
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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 repair.
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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 hold the fog-light assembly in place with a socket and a ratchet. Set the bolts aside. Remove the fog-light assembly by pulling the part nearest to the center of the car outward. The assembly will pivot on the edge near the outer part of the car so that it can be removed.
4. Disconnect the electrical connector that goes to the back of the fog-light assembly. Connect the wires to the new fog-light assembly. Install the new fog-light assembly by sliding the edge that goes towards the outer part of the car in first and then rotating the other side of the assembly into place. Replace the bolts. Reinstall the plastic mesh by installing the bottom first and then rotating it up. Press the two plastic pin screws into the holes.
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