How to Remove the Rear Seat in a Mercedes W123

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.

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How to Repair Mercedes Fog Lights

1. Park your Mercedes on a stretch of flat level ground and engage the parking brake. Turn the engine off and let it cool for about 20 minutes.
2. Crawl under the front end of the automobile and go the the area directly behind the malfunctioning fog light. Remove the dust cover to gain access to the fog light assembly. Use a Flathead screwdriver to pry off the rubber cover and lay it aside.
3. Check the wiring harness. If the Mercedes has been in a minor fender bender there is a possibility that the wires could have come lose. The plug should snap into the fog light assembly tightly. If it has come lose snap it back in and then test the fog lights. If it still doesn't work, completely unplug the harness to access the bulb.
4. Give the bulb a quarter turn to the left to remove it. Insert the replacement bulb. Reassemble the fog light by reversing the above steps.

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How to Fold a Manual Side Mirror on a BMW 325i

1. Step outside of your BMW and shut the driver side door.
2. Face the mirror glass and firmly grasp the entire side mirror housing.
3. Pull the side mirror assembly toward you to fold it, then carefully push it toward the door window glass.
4. Repeat the procedure for the passenger side. When you're ready to bring the mirrors to their normal operating position, grasp them and pull outward.

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DIY Oil Change for a Mercedes A Class

1. Place a plastic oil receptacle beneath the oil-drain plug located at the back of the sump. The sump is beneath the engine block. Unscrew the oil-drain plug and allow the oil to drain into the plastic receptacle. Replace the oil-drain plug, tightening it firmly .
2. Remove the oil filter casing, which is located behind the engine and to the left. You may need a socket extension to reach the nut. Once the casing is removed, pull the old filter free. Push the new filter into the oil filter housing, rub some oil on the gasket of the filter casing and screw it in.
3. Pop the hood and find the oil fill cap which is on the top of the engine block. It can be removed with your fingers. Pour three quarts of oil into the engine. The mouth is wide enough to pour the oil straight in, but it may be necessary to use a funnel.
4. Find the oil dipstick and pull it free. Wipe it clean with a rag and reinsert it. Pull it free once again and check the oil level. Continue to pour oil into the engine 1/2 quart at a time, until the oil level has reached the full line.
5. Start the car and allow it to run for five minutes so that the oil can circulate through the engine block. Check the oil dipstick once more, topping off as necessary.

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Timing Belt Instructions for an Audi 1.8T

1. Raise the front end of your Audi with a jack and place jack stands under the vehicle's front end.
2. Remove both wheel well screws and the six underpan screws by turning them counterclockwise with a screwdriver.
3. Detach both of the small grilles located near the fog lights by removing the bolts with an Allen wrench.
4. Grasp and remove the hose from the small grille on the driver's side of the Audi to detach the headlight washers. Place a bucket below the front bumper to collect the washer fluid; it is reusable.
5.
Detach your Audi's front bumper.
Move the front bumper up and down to detach it from the vehicle. Disconnect the wiring for the horn and headlights with your hands. Detach the turn signal bulbs from the front end of the vehicle.
6. Remove the three T45 screws under the headlight on the driver's side using a T45 Torx screwdriver. Remove the four T45 screws under the headlight on the passenger side.
7. Remove the two T30 screws from the top of each headlight and the two T30 screws from the sides of each headlight with a T30 Torx screwdriver.
8. Grasp and remove the fan's lock carrier, the wiring and the timing belt cover. Then, disconnect the fan by removing the four bolts on the fan with an Allen wrench.
9. Loosen both bolts from the Audi's A/C compressor belt to detach the belt and then wiggle the spring-loaded tensioner with a crescent wrench to release the serpentine belt.
10. Detach the Audi's damper pulley and its four bolts with a breaker bar and a metric wrench, turning counterclockwise. Detach the three lower timing belt cover bolts with an Allen wrench. Remove the cover.
11. Wiggle the Audi's crank by the damper pulley clockwise to connect the marked sections of the cam sprocket together with the Audi's valve cover.
12. Detach the three bolts securing the tensioner as well as the single guide pulley bolt. Pull the tensioner and the guide pulley free and replace the tensioner with a new one.
13. Detach the brass-colored guide pulley bolt to access and remove the timing belt. Position a new timing belt over the Audi's sprockets. Move the guide pulley into place with an Allen wrench and slide off the pin from the replacement tensioner.
14. Reassemble all parts on your Audi by following the above instructions in reverse.

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How to Remove BMW 325i Alternator

1. Disconnect the positive and negative terminal on the battery with a socket wrench. The location of the battery depends on the year of your BMW. The battery may be under the hood or under the back seat.
2. Open the hood if not already open. Locate the alternator belt on the front of the engine.
3. Loosen the tensioner with a socket wrench. The tensioner is under the alternator pulley. Pull the belt off the alternator pulley.
4. Unplug the wires at the back of the alternator by pulling them away from the connector. Make sure that all wiring is disconnected from the alternator.
5. Unscrew the two bolts securing the alternator to the mounting bracket, using a socket wrench.
6. Lift the alternator out of the engine compartment.

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How to Replace a 2003 BMW 330i Keyless Remote Battery

1. Turn the 2003 BMW 330i master key over -- find the small rectangular door on the back of the key.
2. Note the small slot at the bottom of the door and place a thin-blade, flat-head screwdriver in the slot.
3. Gently twist the screwdriver to lift the door. If that doesn't work, use the screwdriver to gently pry off the door.
4. Use the Phillips screwdriver to remove the two screws located under the door that covers the battery.
5. Separate the two pieces of the key and remove the battery cover to access the battery.
6. Use the small, flat-head screwdriver to lift the battery out, if required.
7. Install the new battery as in the picture on the back of the battery cover, with the positive and negative poles facing in the right direction.
8. Reinstall the battery cover and put the key back together in the reverse manner that it was removed.

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How to Check Mercedes Car Histories

1. Ask the seller to give you the vehicle identification number (VIN.) The placement of digits in a VIN gives valuable information about the Mercedes you wish to check up on.
2. Search the history by entering the VIN on a site such as Car Fax, Auto Check or the AA (see Resources.) Using the VIN, you can find the country of origin, date of birth, body style, engine type and many other details of the car. There may be a fee relating to this service depending on which site you use.
3. Talk to the seller and make sure they outline the history of the Mercedes you are buying. It is important that you ask if the car has been in any accidents or if there have been any recurring problems. The seller is the person in the best position to flesh out the history of the car.
4. Find a Mercedes mechanic using a site such as Benz Shop (see Resources.) This will provide you with information about mechanics in your area who are experts specifically on Mercedes cars. They can inspect your car, look for examples of past accidents, faulty repairs or other problems, and perhaps help you to piece together any missing history.

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How to Remove Rear Brake Lines

1. Break the lug nuts loose on the rear wheels. Turn the lugs 45 degrees with a tire wrench, but do not unseat the wheel from the wheel hub it is attached to.
2. Raise the vehicle onto jack stands. Place wheel blocks in front of the front wheels.
Jack up on the front lift point behind the radiator and place a jack stand under each of the rear jack points. Then, lower the vehicle onto the jack stands.
3. Finish removing the lug nuts and pull the rear wheels off the hub.
4. Place the brake fluid catch pan underneath your vehicle's rear brake caliper (the one you will be working on).
5. Slide the flare nut wrench over the brake tubing just behind the tube nut wrench that connects the hard brake line to the rubber brake line.
6. Orient the flare nut wrench so that it fits over the end of the tube nut.
7. Place an open-end wrench underneath the tube nut on the fitting for the rubber brake line.
8. Remove the protective retainer clip on the rear brake line to the brake hose bracket with a pair of pliers.
9. Hold the open-end wrench still and turn the flare nut wrench counterclockwise to remove the brake line.
10. Pull the brake line off the brake hose.
11. Follow the line to the connection underneath the hood.
12. Remove the brake line to proportioning valve connection with the flare nut wrench. The proportioning valve is a small valve with many brake lines connected to it. The exact location will vary depending on your vehicle.
13. Pull the brake line off the proportioning valve.

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BMW Keyless Programming Instructions

1. Close all the doors securely and then sit in the driver's seat of your BMW. Put your car key in the ignition, turn the key until it clicks once and then turn it back to the off position. Repeat this process five times.
2. Take your key out of the ignition and push the unlock button located on your keyless entry remote control. Do not let go of the unlock button until you've pushed the lock button on the keyless entry remote three times. To signal that you've correctly completed the programming process, your doors will lock and unlock themselves.
3. Insert your key in the ignition of your BMW, turning the car on and off quickly. Your keyless entry remotes are now programmed and ready for use.

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