How to Rebuild a Mercedes


1. Pop open the hood of your instrument cluster. Remove the bolt on the negative terminal clamp with a socket wrench. Lift the negative cable away from the terminal.
2. Enter your vehicle and use a Phillips screwdriver to remove the screws which fix the cowl trim around the outside of the instrument cluster. Use your hands to pull the trim away from the dash and place to one side for reattachment later.
3. Locate and then remove the four screws which fix the instrument cluster into the dash. Use your hands to unhook the electrical connector attached to the rear of the cluster. Lift the instrument cluster from the dash and place on your work area.
4. Turn the bulbs in a counterclockwise direction with your hand until they come free from the cluster. Discard the broken bulbs in the trash. Insert the new bulbs in the cluster and attach by turning in a clockwise direction.
5. Reattach the electrical connector to the rear of the cluster. Slide the cluster back in to the dash. Connect the four screws in to the cluster to fix the cluster securely to the dash. Place the cowl trim over the instrument cluster and secure back in place. Lift the negative cable back on the battery terminal and secure in place with the clamp.
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How to Replace the Wheel Bearing on a BMW 528i


1. Loosen the five lug nuts on the wheel that has the faulty wheel bearings, using your lug nut driver. Attach a breaking bar to the driver if you need more leverage to loosen the lug nuts. Set the jack under the 528i near this wheel. Raise the car. Slide a jack stand under the 528i. Lower the BMW onto this jack stand. Finish removing the five lug nuts. Pull off the wheel.
2. Remove the two 14 mm bolts securing the caliper to the rotor. Cut a long strand of wire. Pull the caliper off the rotor. Hang the caliper from the strut or suspension coil with the wire so that it does not dangle and damage the hydraulic brake line.
3. Loosen and remove the central spindle nut with your 19 mm socket, ratchet and breaking bar.
4. Pull off the rotor with your hands. Tap the back of the rotor with a mallet if it is stuck.
5. Disconnect the ABS harness from the back of the wheel bearing hub.
6. Remove the three 14 mm bolts from the back of the steering knuckle to pull off the wheel bearing. If the wheel bearing is stuck, tap the back of it with your mallet. If it still doesn't move, pry it off with a chisel and mallet. Pull off the wheel bearing shield and the seal with your hands.
7. Clean the surface of the knuckle with medium-grit sandpaper. Lay grease over the mating surface of the knuckle. Set the new wheel bearing seal in the knuckle. Set the shield on the knuckle. Mount the new wheel bearing hub with the three 14 mm bolts you removed earlier. Connect the anti-lock brake connector to the new wheel bearing hub.
8. Replace the rotor, caliper and spindle nut. Replace the wheel. Lower the 528i.
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How to Register Your BMW for Service


1. Contact your local BMW dealer by telephone or email. Register your car for service by arranging a mutually convenient time.
2. Alternatively, go to the BMW website. Click on 'Owners' at the top right-hand corner of the page. Click on 'BMW Center Services' located on the left-hand side of the page. Wait for the new page to open.
3. Scroll down the page and click on 'Learn More' located under 'The BMW Difference.' Wait for the next page to load.
4. Click on 'Web Scheduling' and 'Locate a BMW Center for Details.' Wait for the next page to load. Enter your 'ZIP code, State' or nearest 'BMW Center' in the options provided. Scroll down the list of BMW dealers provided, and click on a dealer website of your choice. Wait for the dealer website to load.
5. Click on 'Service and Parts,' which is usually located at the top of the page. Register you car for a service by either clicking on 'Schedule Service' if it opens in the drop-down menu, or calling the BMW service department at the number provided.
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How to Replace Your BMW Steering Wheel Emblem


1. Obtain a replacement emblem of the same or similar material as the old one. This is so if the air bag deploys, it will break the seal and cause less harm to the driver. Do not try to remove the original emblem. Even if it is damaged or scratched, you wont be able to remove it without replacing the air bag as well.
2. Apply an adhesive to the back of the replacement emblem.
3. Align and place the replacement emblem over the old one. Hold it for a few minutes to make sure it sticks properly.
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How Do I Compare 1991 Mercedes Benz 300 and 350 Models?


1. Go to the Edmunds website to start your specification comparisons. Choose 'Used Cars' from the home page and input the correct year, make and model. Choose the 350 series level you want to compare.
2. Choose the level of the 300 class that you want to compare to the 350 series--three different engine options are available. The most similar levels are the 350SE and 300SL because of similarly sized engine. Both are also rear-wheel drive.
3. Change back and forth between 350-class sedans during your comparisons. Click 'Specs' from the left menu to view any model dimensions. Compare exterior and interior dimensions for both vehicles to determine which has more room or which weighs more.
4. Compare horsepower and torque for both classes. One has more torque than the other but less horsepower--it may prove worthwhile to drive both vehicles to compare acceleration.
5. Scroll to the bottom of the page to compare fuel economy. The 350-class is a turbodiesel, so better gas mileage is not unusual. Not even the four-cylinder 300-class can achieve the same gas mileage as the turbodiesel 350-class.
6. Click 'Available Features' from the left menu to compare standard and optional features. Compare engines, transmissions, luxury and standard safety features.
7. Click on 'Resale values' to view dealer retail, trade-in and private-sale values to see which class retains its value better.
8. Test-drive both vehicles, if possible. Even though you are able to compare specifications online, a test drive helps to complete your comparisons so you can better assess each vehicle.
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How to Repair an Audi V8


1. Open your Audi's hood to reveal the V8 engine, then remove the plastic screws that secure the engine cover to the engine by using your philips head screwdriver.
2. Locate the square-shaped coil packs that line each edge of your engine. The coil packs are situated above each engine cylinder and will be found in two rows of four coil packs. These provide spark to the spark plugs, which in turn combust the air and fuel mixture inside each cylinder chamber to generate horsepower.
3. Using your metric socket set, loosen the screws that secure the coil packs to the engine. To fix any issues with your Audi V8, a failing coil pack could be at the center of the problem.
4. Pull up each coil pack individually with your hands while the engine is idling and check to see if it is sparking.
5. Replace any coil packs that are not sparking to help repair this issue with your Audi V8. If a coil pack, or set of them, is failing, then they will not be sparking when they are removed. Failed coil packs can stop the engine from running, may cause a rough idle, or cause the check engine light to flash.
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How Do I Install a Windshield on a Mercedes


1. Use a sharp blade to cut the rubber trim from around the edges of the windshield. Make an incision in the rubber at the top of the shield then cut in a clockwise direction to remove all of the trim. Take care not to scratch the windshield with the blade.
2. Enter the vehicle and push the windshield out from the inside. Have someone on hand to help lift the windshield out of the frame.
3. Place a thin layer of windshield sealant around the edges of the windshield. Attach a new gasket to the bottom of the windshield. The gasket should be lined up at dead center with the slit on the outside of the windshield and the heavy part on the inside.
4. Tie a nylon cord around the outer groove of the windshield. This will help seal the rubber lip in place once you lift the windshield on to the frame.
5. Lift the windshield in to the frame of the Benz. Have someone press the windshield against the frame for a few minutes to allow a seal to set in place. Pull the nylon cord across the bottom of the windshield from inside the vehicle to set the rubber lip in place.
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How to Change an Oil Dipstick


1. Purchase the appropriate replacement dipstick for your vehicle. You can acquire a factory replacement at your nearest dealer, or an aftermarket equivalent at any auto parts store.
2. Turn your engine off and open the hood. Put on your gloves, then remove the old dipstick from your engine. If the handle is broken, use a pair of pliers to carefully pull it out.
3. Insert the new dipstick into the dipstick funnel. Close the hood.
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How to Change BMW Rotors


1. Make sure the vehicle is parked on a flat level surface. Ensure that the car is in gear or in Park. Use a lug wrench to loosen the lug bolts for the wheels. Raise the car with a floor jack and lower it onto jack stands at all four corners. The jacking points will differ depending on the model of BMW that you are working on. Consult your owner's manual for the proper jacking points. Remove the wheels and set them aside.
2. Clean the brake rotor, the caliper and any nearby parts with brake cleaner and a clean, dry rag, ensuring that there is no oil or residue on the brake parts. Loosen the two large bolts that hold the caliper to the carrier. These are located on the upper and lower part of the caliper facing the wheel arch. On most newer BMWs these bolts are Torx-shaped bolts that are removed with a star-shaped bit. Some older models use a normal bolt. Slide the caliper off of the rotor and support it with a piece of wire or on a platform while you work to avoid damaging the soft brake line.
3. Remove the two bolts that hold the caliper bracket on. These are located on the top and bottom of the bracket facing the wheel arch. Set the bracket aside. Remove the set screw that holds the rotor on. If it is frozen and will not loosen easily, spray penetrating fluid on it and let it soak in. The set screw is removed with a small Allen bit on BMWs. Make sure you use the properly sized tool to avoid stripping the screw. Pull the rotor straight off of the hub, tapping it from behind if needed to free it. Spray the hub mounting surface with brake cleaner and wipe it down.
4. Clean the new rotor with brake cleaner and a clean rag. Avoid touching it with your bare hands. Slide it onto the hub and reinstall the set screw. Tighten the set screw firmly. Bolt the caliper carrier back on and tighten the bolts. On most BMWs, the outer brake pad fastens to the slots in the caliper carrier and the other one clips into the piston in the caliper. If they have fallen out, reinstall them and slide the caliper and brake pads over the rotor. Tighten the bolts that hold the caliper on. Repeat the above steps for the other three corners of your BMW. Replace the wheels and lower the car to the ground. Pump the brakes until the pedal feels firm.
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How to Install a Mercedes E430 Cabin Filter


1. Open the glove compartment.
2. Remove the two screws on the bottom of the glove compartment. Remove the two screws on the top of the glove compartment.
3. Pull the glove compartment toward the rear of the E430 to remove it.
4. Pull up and out on the cabin filter access door to remove it.
5. Grasp the filter that is in the opening. Pull the filter straight out to remove.
6. Slide the second filter to the left and pull it straight out.
7. Insert the first new filter into the opening. Slide the filter to the right to make room for the second one.
8. Insert the second new filter into the opening.
9. Replace the cabin filter access door. Press on the door until it snaps into place.
10. Reinsert the glove compartment in the dash. Reattach the four screws that hold the glove compartment in place.
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