BMW 325i Sports Wagon 3 Series 2004 Owner's Manual
![BMW 325i Sports Wagon 3 Series 2004 manual cover](/images/0945ee845d7bf99b78315dcf/thumbs/thumb175x175.webp)
To reset the oil service light, turn the ignition key to the accessory position, press and hold the odometer reset button, and then turn the ignition to the on position without starting the engine. Keep holding the button until the service light begins to flash and then releases the button.
For optimal performance, use synthetic oil with a viscosity of 5W-30, which meets BMW Longlife-01 specifications.
The 2004 BMW 325i uses a sealed transmission, so checking the fluid level is not straightforward. It is recommended to have a professional mechanic check it during routine maintenance.
A rough idle can be caused by several issues, including dirty fuel injectors, a faulty idle control valve, or vacuum leaks. A diagnostic scan can help identify the exact cause.
Locate the air filter housing in the engine bay, unclip the housing cover, remove the old air filter, and replace it with a new one. Ensure the new filter is seated properly before reattaching the cover.
The recommended tire pressure for the BMW 325i Sports Wagon is typically 32 psi for the front tires and 35 psi for the rear tires. Always refer to the tire placard located on the driver's side door jamb for accurate specifications.
If the ABS light is on, check for any visible issues such as damaged wheel speed sensors or wiring. If no obvious issues are found, a diagnostic scan tool will be needed to read ABS fault codes and pinpoint the problem.
It is recommended to change the brake fluid every two years to ensure optimal braking performance and prevent moisture buildup in the system.
Potential causes for overheating include a faulty thermostat, a leaking radiator, a broken water pump, or low coolant levels. Inspect these components and address any issues promptly to prevent engine damage.
To program a new key fob, insert the key into the ignition and turn it to position 1, then back to 0. Remove the key, hold down the unlock button, and press the lock button three times. Release the unlock button. The locks should cycle to confirm programming.