How to Change the Wiper Blades on an Audi

1. Pull the wiper arm gently away from the windshield until it locks into a perpendicular position.
2. Swing the windshield blade back from the arm so that it faces you.
3. Press on the release tab. It's generally on the arm where the blade meets the arm.
4. Pull the blade out slowly. Slide the new blade into the arm until the release tab clicks.
5. Test the new blade by pulling gently on it. Return the windshield wiper arm to its original position.
6. Repeat the process for the second blade. Pour some water on your windshield and test the new blades.

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How to Remove the Bumper of My Mercedes 190E

1. Park the 190E on a flat, level surface. Reach behind the license plate and unplug the electrical connector of the temperature probe.
2. Use a socket wrench to remove the four nuts with washers from the front of the tires, directly underneath the fenders.
3. Use a socket wrench to remove the two side bolts. Be very careful when removing these bolts as once they are both removed, the bumper will fall off the vehicle.
4. Remove the bumper and replace, if necessary.

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How to Install BMW Side Mirrors

1. Roll down both front windows, and then turn off the car.
2. Disconnect the negative cable from the car battery. You want to avoid accidentally shocking yourself while dealing with the wires in the mirrors.
3. Pry the panel on the inside of the door off -- direct opposite of the mirror -- by using the screwdriver.
4. Disconnect the wire clip. The clip connects the wires from the door to the wires in the mirror.
5. Hold the mirror with one hand through the open window and unscrew the three bolts with with other hand using the wrench.
6. Place the new mirror against the car door in the newly opened spot and screw the three bolts back in.
7. Reconnect the clip and replace the panel.
8. Perform Steps 3 through 7 for the other mirror.
9. Reconnect the negative battery cable, start the car and test the mirrors by moving them with the power mirror switch. Set the mirrors so you can see what's behind the car sides clearly without having to move your head too greatly.

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How to Remove a Mercedes Tensioner Assembly

1. Park the Mercedes vehicle on a flat surface and open the hood. Shut the engine off and wait about an hour for the engine to cool down.
2. Prop the hood up and locate the tensioner assembly on the front of the engine. The tensioner assembly has a spring-loaded arm on one end and a pulley on the other end. The accessory belt travels under the tensioner pulley.
3. Position a metric socket and a breaker bar onto the bolt head in the middle of the tensioner pulley. Turn the breaker bar in a clockwise motion to release the tension from the belt. Continue to hold the tension off of the breaker bar with one hand and slide the belt out from under the tensioner pulley with the other hand. Release the tension from the breaker bar and remove the breaker bar and socket from the tensioner pulley.
4. Hang the belt to one of the accessory pulleys such as the alternator pulley or the power steering pump pulley with a bungee strap. This is to prevent the belt from slipping out of the accessory pulleys.
5. Locate the bolt head in the middle of the tensioner arm and the mounting bolts from the bracket that holds the tensioner to the front of the engine block. Loosen and remove the bolt from the middle of the spring-loaded arm with a ratchet and a socket. Loosen and remove the mounting bolts from the tensioner assembly bracket. Place the bolts in a safe place.
6. Pull the tensioner assembly straight off of the front of the engine block. If the tensioner is stuck, use the end of the breaker bar to tap the tensioner assembly off of the engine block. Position the new tensioner assembly over the mounting bolt holes on the front of the engine block. Screw the bolt back through the middle of the tensioner arm and tighten it down with a ratchet and socket.
7. Screw the tensioner assembly mounting bolts through the bracket holes and into the engine block. Tighten the bracket bolts down tight with the ratchet and socket.
8. Position the breaker bar and socket onto the bolt head in the middle of the new tensioner pulley. Turn the breaker bar counter-clockwise and hold the tensioner in position with one hand and remove the bungee strap from the belt with the other hand. Slide the belt under the tensioner pulley and release the breaker bar. Remove the breaker bar and socket from the pulley and the engine compartment.
9. Inspect the belt to ensure that it has remained inside of all of the accessory pulleys. Crank the engine and watch the new tensioner assembly as the belt is traveling under the tensioner pulley. Make sure that the new tensioner pulley is moving up and down freely with the movement of the belt.
10. Shut the engine off and close the hood.

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How to Replace a Window in an Audi A6

1. Clean the work area and your materials. With a screwdriver, remove all the screws in the door panel and place them in a cup for easy access. Use a razor blade to cut the weather-stripping around the edge of the glass frame. Pull it off but on the last remaining inches hold the glass down to secure it and pull the strip completely off the frame.
2. Place the tarp just outside your car immediately below the window. Use the screwdriver to break and push the glass toward the tarp. For glass shards that remained around the edges, use the needle nose pliers to remove them. After that, place the tarp with the shards in an area that is safe. Wash the new window glass thoroughly and let it dry.
3. Remove the door panel. Use a screwdriver to remove all the screws the secure the panel in place. Once done, you will see a plastic covering the internal parts of the door. Peel the barrier back.
4. Fill the empty glass window with the replacement glass. Use a screwdriver to loosen the bolts that secure panel bar; this will give you more space to move the glass freely. Remove the brackets of the old window glass that is still attached to the frame; the new glass has them. Look for a sticker or any marker in the glass; markers signify the bottom of the glass.
5. Slide the glass through the window slots in the frame. Use your hands to slide it up through the slots. Align the brackets that come with the new glass to the frame. Next, make sure that the glass if properly placed and is very secure and if the window operates correctly. After that, tighten the brackets, replace the weather-stripping, replace the weather barrier, reinstall the door panel and reconnect the wiring.

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How to Install a 2008 Audi TT Satellite Tuner

1. Climb the step stool to reach the roof of your 2008 Audi TT. Once on top of the vehicle, search for an acceptable area to connect the antenna. The requirements, according to the Sirius hardware guide, are a flat surface and a full line of sight to the sky. On the bottom of the antenna are two pads that have adhesives on them. Use these pads to stick down the antenna.
2. Enter the driver's side and try to find a spot to place the satellite tuner receiver. A spot on the windshield or dashboard is optimal, as long as the spot allows a clear line of vision for the driver. Use the suction cups on the bottom of the receiver to hold the unit in place to the spot of your choice.
3. Connect the audio cable to the satellite tuner antenna. Wire the cable down the roof of the Audi TT and through the front passenger seat. Push the cable through the outside molding, and then pull it inside the vehicle along the inner roof. Tape the cable to the roof while holding it tight. Pull the the remaining slack of the cable down to the satellite tuner receiver; plug the cable into the jack labeled 'Antenna In' on the back of the receiver.

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Troubleshooting a Fuel Pump on a BMW 330i

1. Listen for sounds. A fully functional fuel pump can be identified by a steady humming sound that comes from the rear of the car near the fuel tank. If you hear crackling, trickling or growling noises, this could be a sign of a faulty fuel pump. The fuel tank in the BMW 330i is located on the right rear (rear passenger) side of the car.
2. Monitor your 'check engine' light. If the 'check engine' light intermittently turns on and off, there may be a problem with the fuel pump and the fuel injection system. The 'check engine' light in the BMW 330i is located on the driver's dashboard above the odometer.
3. Do a voltage meter reading of the pump. Locate the dark green and black wire connecting the fuel pump to the system; in the BMW 330i, you can locate this by lifting the carpet on the underside of the driver's side, right behind the door. Connect a voltage meter to the larger of the four wires, and have someone turn on the ignition. Wait for a flash of voltage, then have someone crank the engine. If you get a reading of 10 to 11 volts, the fuel pump is working.
4. Listen for stuttering. One of the most obvious signs of a failing fuel pump is a stuttering engine that dies out shortly after starting. If you have trouble cranking the engine and the engine stutters and dies out, there may be a problem with the fuel pump. The BMW 330i typically does not make a lot of noise when cranking, so listen for a consistent, light humming sound after the engine cranks to ensure the fuel pump is working properly.
5. Check your Electronic Control Unit (ECU). The BMW 330i is a fuel-injected car, which means it is programmed with an Electronic Control Unit. If this unit is faulty, it will send out the wrong signals and may shut the fuel pump off automatically. The dealership or technician will need to reprogram the ECU for optimal performance. If the fuel pump is still not working after this adjustment, there may be a problem with another part of the fuel injection system.

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Replacing a BMW 535I Cabin Air Filter

1. Open the glove compartment. Remove the screws on each side of the glove compartment.
2. Remove the glove compartment door from the dash.
3. Open the cup holder tray inside the glove compartment.
4. Remove the two screws that hold the tray in place. Remove the cup holder tray.
5. Turn the knob covering the cabin air filter compartment counter-clockwise to open the compartment.
6. Pull the old filter out of the filter compartment.
7. Slide the new cabin air filter into the filter compartment.
8. Turn the knob clockwise to close the cabin air filter compartment.
9. Replace the cup holder tray and the two screws that hold it in place.
10. Replace the glove compartment door. Replace the two screws that hold it in place.

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How to Replace an O2 Sensor in a BMW

Instructions
1. Find the oxygen sensor on the pre-catalytic converter. This is located near the front-right wheel well.
2. Remove the large air intake pipe connected to the air box and rear turbo. You will also need to remove the two smaller air pipes connected to the air box and blow off valves. Soak the old O2 sensor with penetrating lubricant (WD-40 or equivalent) to make removal easier.
3. Use the 7/8-inch wrench to remove the old O2 sensor. Locate the engine lift loop near the firewall to find the stock sensor wire. Splice this wire and connect it with the wires of the new O2 sensor using crimp connectors.
4. Apply a small amount of anti-seize paste to the threads of the new O2 sensor. Be careful not to get any of the paste on the rest of the sensor or it will ruin it. This will make removal of the sensor easier for next time.
5. Screw in the new O2 sensor by hand as tight as you can get it. Use the wrench to fully tighten it. Snap in the connecting wires back into the wire holders. Reconnect all the air pipes again.

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How to Jump Start a 1990 535I BMW

1.
Try the ignition first to troubleshoot the battery.
Determine that the battery is the reason the engine won't start. Turn the ignition. If the engine cranks, the battery is good. If there's silence or a ticking sound, the battery is faulty.
2.
Attach the positive clamps first.
Turn the ignition off. Lift the hood of both vehicles. Locate the positive post under the hood of the BMW 535i. It connects to the clamp of the positive (red) cable. Attach the clamp on the other end of the red wire to the positive terminal on the booster vehicle.
3.
Attach the negative terminals last.
Attach the negative (black) clamp to the negative terminal of the booster battery. Attach the other negative clamp to the engine frame of the BMW to complete the circuit. Any unpainted metal surface will suffice. Just make sure it's away from any moving parts.
4.
Run the booster cars' engine for a few minutes before trying to start the BMW.
Start the engine of the booster vehicle. Wait at least 5 minutes for a charge to build up. Start the BMW. If it starts, move on to the next step.If it fails to start, wait another few minutes and try again. If the car still fails to start after 30 seconds of trying, call a professional mechanic. The battery might not be at fault, and further tries could damage your engine.
5.
Remove the cables in reverse order.
Remove the cables in the reverse order they were attached: the BMW engine frame first, and the booster battery's red terminal last.
6.
Charge the battery for at least 12 hours.
Drive the BMW to a location where you can safely remove the battery and attach it to a battery charger for at least 12 hours. The vehicle's alternator will provide some charge to the battery as you drive, but this is not its primary function.

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