Sport Cars

Resynching a BMW key
1. Position yourself in the drivers seat. Lock the doors of your BMW 325i by pressing the lock button located in the center console.
2. Put the key in the ignition and turn it two clicks clockwise to position 2. Keep the key in position 2 for three seconds. Turn the key counter-clockwise two clicks to remove it from the ignition.
3. Hold down the unlock button on the key for five seconds.
4. Continue to hold down the unlock button and tap the lock button on the key with your other hand three times. You should hear the locking system cycle. The doors will unlock and then lock again.
5. Step outside of the car and test your key. If the key is not still functioning properly repeat steps 1 through 4 until the synchronization process is done correctly. If your key is still not working, consult a BMW mechanic or lock and unlock your car manually.

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. Insert the key in the ignition, but do not turn on the vehicle.
2. Press and hold the odometer reset button, located on the instrument panel.
3. Turn the ignition switch to the ON position. Continue to hold down the odometer button until it reads RESET. Release the reset button.
4. Press and hold down the odometer reset button until RESET blinks. Release the odometer reset button.
5. Press and hold down the odometer reset button until RESET is replaced with END SIA. Release the odometer reset button.

1. Pop the hood. Locate the belt-routing diagram, which is a sticker on the core support. Locate the belt tensioner, which is in the middle of the engine, just above the crankshaft pulley.
2. Place the 3/8-inch ratchet and socket on the hex-head bolt in the middle of the tensioner and turn it counterclockwise to release the tension on the belt. While still holding the ratchet, pull the belt off the pulleys.
3. Run the replacement belt around the pulleys on the engine, using the sticker you found in Step 1 as a guideline. Then pull the tensioner counterclockwise with the ratchet again, and run the belt around the tensioner. Release the ratchet and verify that the belt is straight and even on each pulley.