Cars Specification

1. Park the car on level ground. Engage the parking brake and disconnect the negative battery cable.
2. Open the trunk and remove the corner side panel trim from the rear of the vehicle. Disconnect the wiring modules from the tail lights. Remove the assemblies from the vehicle to access the rear bumper mounting screws.
3. Remove the two screws mounting the bumper cover on each side. Disconnect the electrical module for the backup sensors (if equipped) located on the drivers side, below the tail light assembly cavity.
4. Remove the lower mounts below the rear bumper. Detach the clips from each side of the bumper.
5. Support the bumper on one side and have an assistant support the other side. Pop the bumper cover off. Be careful not to damage the clips.

1. Use a floor jack to lift the front of the BMW. Remove the splash guard under the engine. This is held on with screws and plastic plugs that are removed by hand. Turn on the ignition, set the heater to 91 degrees and set the fan to the low speed. This will get the coolant out of the heater core.
2. Locate the radiator fill cap in the engine bay and loosen the bleeder screw with a screwdriver. Make sure you let the car cool down enough if it has been driven recently.
3. Locate and remove the two blue radiator screws located directly beneath where the radiator fill cap is located. Place a container under the drain plugs and drain them one at a time. Reinstall the radiator drain screws. Remove the 13-millimeter engine block drain plug, located on the passenger’s side of the engine block near the front axle, and drain the coolant into the container. Place a new washer on the drain bolt and put it back in the block, tightening it to 18 ft/lbs with a torque wrench.
4. Remove the intake ducting by carefully prying up the three plastic rivets that hold it to the top of the radiator. Remove the neck of the air box by pressing the two vertical sides of the ducting together and pulling it off.
5. Remove the wires that go to the radiator fan and the T25 Torx screw that holds the fan on. Remove the plastic rivet on the driver’s side with a screwdriver. Remove the fan by pulling it straight up and out.
6. Remove the wire that goes to the thermostat. Use a 13-millimeter socket to remove the bolt on the upper right part of the thermostat. Use a 10-millimeter socket to remove the three bolts on the top and bottom of the thermostat.
7. Remove the upper and lower radiator hoses from the engine block. Remove the thermostat. Clean the surface where the thermostat gasket is installed so there is no gasket material remaining.
8. Install the new thermostat with the 13-millimeter bolt and the three 10-millimeter bolts. Use a new gasket when you reinstall the thermostat. Tighten the bolts to 7 lb/ft. Reinstall the radiator hoses. Reinstall the fan and the intake ducting. Top up the system with coolant.

1. Remove the bolts that secure the seat base to the floor pan with a socket and ratchet. The bolts are between the center cut-out in the seat where the seat belt fasteners come out of the center of the seat. Remove the bolts with a socket and ratchet.
2. Grab the front of the seat and work your fingers between the floor pan and the bottom of the seat. Pull up to force the clamps out of the floor pan and pull the seat forward to separate it from the seat back.
3. Push the seat belt fasteners from between the two seat panels and remove the lower seat from the Mercedes.
4. Grab the bottom of the seat back where the seat was joined with the seat base. Pull out on the bottom of the seat to remove the clips from the trunk frame. Keep pulling until the entire seat is free from the trunk frame and remove the seat back from the Mercedes.

1. Open the hood and disconnect both battery cables. Wait at least 10 minutes before you begin work inside the car. This allows residual electricity in the system, which can cause an accidental inflation of the airbag, to dissipate.
2. Open the glove box. Remove the airbag connector cover on the top-front of the glove compartment, and then disconnect the wiring harness.
3. Use a socket to remove the nut that connects the dash side lower finisher, which is the plastic piece on the side of the dashboard. Insert a small flat screwdriver into the seam between the dash top and the side finisher. To avoid scratches, place a soft cloth over the tip of the screwdriver. Gently pry the panel to release the two metal clips.
4. Remove the drivers side lower instrument panel. This is the panel below the steering wheel that attaches to the center console. Use a Phillips screwdriver to remove the screw on each side. Insert a flat screwdriver into the seam at the top of the panel, and then gently pry it of. There are three metal clips you must release along the top, and two plastic tabs on the right side that pull straight out.
5. Remove the shifter finisher. This is the piece that fits around the gearshift. Pry off the two metal clips on each side of the shifter finisher with a flat screwdriver. When the piece is out of the console, disconnect the wiring harness from the rear of the cigarette lighter.
6. Remove the glove box. There are two Phillips screws along the bottom of the bracket, and one screw in the top-left corner of the bracket. There is also a single metal clip on the right side that you should be able to release as you remove the glove box assembly.
7. Remove both instrument stay covers. These are the plastic pieces on the bottom left and right sides of the center instrument cluster, close to the cigarette lighter and ashtray. There is a single screw on the side of the panel closest to the front of the vehicle, near the bottom. There is a single metal clip on the opposite side of the screw. Use a flat screwdriver to pry the clip out, if necessary.
8. Remove the screws from the center console. There are two screws in the front, one on each side of the gearshift, one screw inside the console box (which you can access with the arm rest/console lid open) and one on each side of the console, near the rear. You can now lift the console off of the vehicles floor.

1. Park the car in a sunny spot. Try to park the car in an area where the internal temperature of the car reaches above 75 degrees. If you are working in the winter, you can use a small heat gun or hair dryer to warm the adhesive that holds the mirror in place. Allow the Mercedes to sit in the sun for at least two hours.
2. Locate the area where the mirror attaches to the button glued to the windshield. A small screw holds the mirror on this button. Unscrew the screw and set it aside.
3. Remove any electronic wires attached to the mirror by pulling the wires gently with pliers. These wires control the thermometer inside the mirror, the auto dim feature and sometimes a heating mechanism. Your mirror may have some or all of these features, depending on the features included on your Mercedes 450.
4. Turn the mirror gently clockwise to loosen it from the button on the windshield. Set the mirror down in a safe place where it will not get broken, scratched or sat on.
5. Grasp the sides of the button with a crescent wrench. Gently twist the button in a clockwise direction until the button pops off of the glass surface. If this does not work, insert a razor blade between the glass and the button and apply gentle pressure to pop the button off of the glass.
6. Place a small amount of adhesive remover onto any glue remaining on the surface of the glass. Allow the remover to sit for 10 minutes. Then wipe the residue away with a soft cloth. You can also use the razor blade to scrape away the adhesive.

1. Record the security code for the radio so that you can connect the battery after removing the harmonic balancer. Disconnect the cable from the negative battery terminal with a socket wrench. This prevents you from inadvertently starting the engine, while removing the harmonic balancer.
2. Remove the splash shield for the front wheel wells with a socket wrench to gain access to the vibration damper. Some vehicles with a VR6 engine also require you to disconnect the lower engine shield to access the vibration damper.
3. Hold the crankshaft pulley in place with Tool No. 3273. Detach the accessory drive belt that the crankshaft drives.
4. Disconnect the central bolt on the crankshaft with a socket wrench. Remove the vibration damper from the crankshaft.

1. Put both European release keys into the slots, at both sides of the CD stereo. Each key is designed with two ends that fit into two slots. There are four slots on the stereo, two slots for each key.
2. Pull out both European release keys towards you to unlock the CD stereo and pull out the CD stereo from the Audis center console.
3. Pull the aerial and ISO wiring out from the back of the Audis CD stereo.

1. Turn off the A6s engine. Remove the plastic cover from the battery. Loosen the small nut on the rear edge of the black battery cable with pliers. Pull the cable away to disconnect the battery.
2. Insert the Audi radio-removal keys into the slots. There is one slot beneath the Volume knob and one slot beneath the Tune knob. Push the keys in firmly.
3. Apply outward pressure to the keys to release the radio mounting clips. Slide the radio forward by pulling on the keys.
4. Move the radio out of the way. If you need more room to access the climate control bolts, unplug the two connections from the rear of the radio and set it aside.
5. Remove the two mounting bolts from the top edge of the climate control unit with a socket wrench. Pull the unit forward and unplug its electrical harness.