How to Replace a Headlight Bulb in a BMW

1. Open the hood and unplug the HID power connector from the back of the HID ballast on back of the headlight housing assembly.2. Pry the rubber dust cover off the back of the headlight housing assembly with your fingers.3. Turn the headlight collar counterclockwise 1/4 turn and pull it straight out of the headlight housing.4. Slide the new HID headlight into the housing. Align the tabs on the collar with the notches in the headlight housing.5. Turn the headlight clockwise to lock it into the housing.6. Slide the dust cover back over the back of the headlight housing.7. Reconnect...
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How to Disable a Car Alarm on a 2003 Mercedes Benz C240

1. Turn off the C240's engine and open the hood. The fuse block is situated behind the C240's battery.2. Remove the C240's fuse block cover. On the underside of the fuse block cover is a fuse puller. Remove the fuse puller from the cover.3. Remove the fuse numbered '8' in the fuse block. Use the fuse puller. If you wish to enable the car alarm, plug the fuse back into the '8' slot.4. Place the fuse puller back onto the cover and place the cover back onto the fuse block. Close the ho...
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How to Replace the Belts on a BMW 325i

1. Disconnect the negative cable from the battery. The negative cable is black.2. Remove the bolts holding the black plastic splash shield underneath the car. Remove the shield. Open the lid for the coolant tank. Drain coolant from the block into a container by removing the drain bolt under the exhaust manifold. The exhaust manifold is located on the passenger side, behind the oil filter.3. Grab a 32-mm side open-end wrench. Use this to remove the cooling fan from the water pump by turning the nut clockwise to remove it. Once removed, keep it stored in an upright position and remove the...
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How to Remove a Mercedes Cylinder Head

1. Lift the hood and study the layout of the cylinder head which needs to be removed. The fuel sending unit will need to be removed or disabled before you attempt to remove the cylinder head, as well as the cylinder head cover and valve covers. Refer to the specific engine layout in your Mercedes Benz repair guide to determine what must be removed prior to removing the cylinder head.2. Unbolt the cylinder head by loosening the retaining bolts one at a time starting with the bottom bolt in the center. The next bolt will be the top center. Remove the next bolt in a clockwise fashion from the...
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How to Check the Power Steering Fluid on a 2002 BMW 325

1. Open the car’s hood. The power-steering reservoir on a 2002 325i is located next to the coolant reservoir in the engine bay above the power-steering pump.2. Clean the power-steering fluid reservoir and the area around it with a clean rag to avoid any dirt and debris getting in the fluid. Turn the lid of the reservoir by hand counterclockwise to loosen and remove it.3. Look at the bottom of the lid, which will have a plastic dipstick on it. Wipe the dipstick with a rag so that it is clean and then dip it back in the reservoir. Pull it back out and look at the dipstick.4. Pour the appropriate...
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How to Turn On a Mercedes Benz C280 Fog Lamp

1. Turn your C280's engine on, or insert the key and turn it to "Acc."2. Locate the main light switch to the left of the steering wheel (directly beneath the left air vent). Turn the switch left to turn on the parking lights or right to turn on the headlights (the fog lamps cannot be turned on by themselves).3. Grasp the switch's handle and pull it towards you one notch to turn on the front fog lamps.4. Pull the switch's handle two notches to turn on the front and rear fog lam...
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How Do I Remove the Oil Temperature Gauge in an Audi 80?

Accessing the Gauges1. Pry off the trim around the air conditioning controls using a flat-head screwdriver. Work carefully to avoid puncturing or tearing the trim.2. Unscrew the bolt that holds the locking piece in place. The bolt is located on the right. It is a regular bolt that can be removed with a standard wrench or pair of pliers. The trim must be removed first to expose the bolt.3. Remove the rotary knobs that control the heat and air conditioning by hand. Remove the trim from the same area using a flat-head screwdriver.Removing the Gauge Housing4. Unplug the connector assignment...
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How to Install Navigation on a 2006 Audi A6

1. Mount the suction cup included in the navigation system kit on the windshield by pushing it up against the glass. Push the suction cup's lever back so the cup sticks against the windshield.2. Locate the cradle and snap it into position on the protruding arm of the suction cup.3. Connect the power to the GPS unit itself by plugging the provided power cable into the unit. Plug the other end of the power cable into the Audi's power outlet.4. Slip the base of the navigation unit onto the bottom of the cradle. Push the top of the navigation unit into the cradle's fixture until it clicks...
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How to Install the Front Brake Rotors on a 96 BMW 740IL

1. Loosen the BMW’s front wheel bolts with a ratchet and socket. Raise the front of the vehicle with a floor jack and place jack stands under its frame rails. Lower the 740iL onto the jack stands. Remove the wheel bolts and remove the front wheels.2. Trace the brake pad level sensor wire -- on the driver’s side only -- until you find where it connects to the BMW’s wiring harness. Press and hold the unlocking button on the wiring harness, then unplug it from the vehicle’s harness. Unfasten the retaining bolt that secures the pad level sensor bracket to the caliper, using a ratchet and socket,...
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How to Customize a Mercedes

1. Install a set of aftermarket wheels. A Mercedes looks great with a larger set of wheels and tires, so start the modifying process by swapping out the stock wheels for lighter, more aggressive alloys. Many companies make wheels for Mercedes, but it's best to stick with established brands like BBS, AMG and AC Schnitzer. Try to steer clear of 20-inch chrome rims if possible.2. Install a lower, stiffer suspension for a better appearance and additional performance. Pair a set of high-quality lowering springs from a company like Brabus or Carlsson with some stiffer shocks from Bilstein or Koni....
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