Specs Cars

1. Open the engine compartment and disconnect the negative battery cable using a wrench to loosen the terminal nut. On some automobiles, you may have to remove the cooling duct to get to the alternator. If you model is one of these, then you can remove the air ducts using a screwdriver to remove the clamps.
2. Unplug the alternator wiring harness and then remove the other wires using a wrench to remove the nuts. Loosen the mounting bolts on the alternator with a ratchet and socket. Push the alternator to the side and remove the serpentine belt from the alternator only.
3. Remove the alternator mounting bolts using a socket and ratchet and pull the alternator out of the vehicle.
4. Put the new alternator in place and loosely install the mounting bolts. Place the serpentine belt back on the alternator pulley and tighten the alternator mounting bolts with the socket and ratchet. Plug the alternator wiring harness in and then connect the other electrical wires. Use a wrench to tighten the nuts.
5. If you had to remove the air ducts to access the alternator, replace them and tighten the clamps with the screwdriver. Reconnect the negative battery terminal and tighten the nut with a wrench.

1. Park the Audi A4 on level ground.
2. Press onto the left side of the switch to raise or lower the front portion of the seat.
3. Press onto the right side of the switch to raise or lower the rear portion of the seat.
4. Press on both the left and right sides of the switch to raise or lower the entire seat bottom.
5. Press at the center of the switch to move the seat forward or backward.

1. Park the Audi on level ground.
2. Lift the front portion of the Audi using a jack and rest it on axle stands.
3. Remove the two screws from the wheel wells and the six screws from the Audis underpan by turning a screwdriver counterclockwise.
4. Take off the two lower grilles and the bolts found near the Audis fog lights by turning an Allen wrench counterclockwise.
5. Grab and remove the Audis headlight washer hose, found by the drivers side lower grille. Put a bucket under the Audis front bumper to collect any fluid that will drain out.
6. Jerk the front bumper from the Audi in an upward, then downward motion to remove it. Grab and take off the horn and headlight wiring and turn signal bulbs on either side of the Audis front end.
7. Remove all three drivers side headlight screws and the four passengers side headlight screws found under the headlights by turning a T45 Torx screwdriver counterclockwise.
8. Take off the two screws found above the headlights and the two screws found at the sides of the headlights by turning a T30 Torx screwdriver counterclockwise.
9. Grab and take off the lock carrier from the Audis fan, as well as the wiring and timing belt cover, then unscrew all four bolts from the fan by turning an Allen wrench counterclockwise. Slide the fan away from the Audi.
10. Loosen the two A/C compressor bolts to take off the A/C compressor belt and jerk the spring-loaded tensioner found by the fan using a crescent wrench to reveal and remove the Audis serpentine belt.
11. Take off the damper pulley from below the Audis fan by unscrewing its four bolts counterclockwise using a metric wrench. Hold the damper pulley with a breaker bar. Remove the lower timing belt cover by unscrewing its three bolts.
12. Turn the damper pulley crank clockwise to line up the cam sprocket and valve cover with their marked sides. Then unscrew the three bolts that hold in the tensioner and the bolt that holds in the guide pulley. Install a new tensioner to the guide pulley. A tensioner and a new timing belt can be purchased with a timing belt kit from most auto parts shops.
13. Unscrew the guide pulleys bolt from its brass-colored portion, take off the timing belt, then place a new timing belt at the Audis sprockets. Assemble the guide pulley with an Allen wrench, then take out the new tensioners pin using your fingers.
14. Install all of the Audis components back in their places by performing these steps in reverse. Remove the axle stands from the Audi to lower the vehicle.

1. Lift the vehicle with a floor jack and place a jack stand under the front and back axles behind each wheel. Verify that the vehicle is level when on the jack stands.
2. Locate the drain plug on the bottom of the transmission pan and place a drain pan on the ground under the plug. Remove the drain plug with a socket wrench, allowing the transmission fluid to drain completely.
3. Remove the bolts on the transmission pan with a socket wrench and set the bolts in a safe place. Remove the transmission pan, using a screwdriver to carefully pry the pan off the transmission.
4. Clean out any debris and sediment from the inside of the transmission pan with clean paper towels. Unbolt the white plastic transmission filter from underneath the transmission with a socket wrench and dispose of the filter.
5. Remove any debris and oil from the bottom of the transmission where the filter attaches, with a clean cloth. Place the new filter gasket between the bottom of the transmission housing and the transmission filter and attach the new transmission filter to the bottom of the transmission.
6. Scrape the remaining gasket material off the bottom of the transmission and off the transmission pan with a putty knife. Place the new rubber transmission pan gasket around the lip of the transmission pan.
7. Attach the transmission pan to the bottom of the transmission and secure it with bolts. Screw the drain plug into the bottom of the transmission pan by hand until it is snug and tighten the drain plug with a socket wrench just enough so it is secure.
8. Unscrew the fill plug on the side of the transmission fluid oil pan with a socket wrench. Refill the transmission oil pan with transmission fluid, using a high output pump, until the fluid is running out of the pan.
9. Install the oil fill plug of the Audi automatic transmission pan and tighten by hand. Turn the engine on and place your foot on the brake pedal. Shift the transmission into each gear for about ten seconds to run the fluid through the transmission.
10. Put the transmission back into park and let the engine idle. Remove the oil fill plug on the side of the transmission pan by hand and fill the pan with fluid using the high output pump until the fluid runs out of the fill hole.
11. Place the drain plug into the side of the drain pan, securing it with the socket wrench. Shut off the vehicle engine.
12. Lift the vehicle up with a floor jack to remove all the jack stands and set the vehicle back down on the ground. Dispose of the drained transmission fluid at the local recyclers or automotive center.