BMW Z4 2.5i Roadster & Coupe Z4 Series 2004 Owner's Manual
![BMW Z4 2.5i Roadster & Coupe Z4 Series 2004 manual cover](/images/663046487841da3c045d8947/thumbs/thumb175x175.webp)
To check the engine oil level, ensure your car is on a flat surface. Turn off the engine and wait a few minutes for the oil to settle. Pull out the dipstick, wipe it clean, insert it back fully, and then pull it out again to check the oil level. The oil should be between the minimum and maximum marks.
For optimal performance, use premium unleaded gasoline with an octane rating of 91 or higher. Using lower-octane fuel may reduce performance and fuel efficiency.
To reset the TPMS, turn the ignition to position 2 without starting the engine. Press the TPMS reset button until the warning light on the dashboard blinks three times, then start the engine and drive for a few miles to complete the reset.
If the convertible top isn't opening, check for obstructions and ensure the trunk is closed properly. Verify that the hydraulic fluid level is adequate. If the issue persists, the convertible top motor or switch may need inspection by a professional.
The recommended tire pressure for the BMW Z4 2.5i is usually around 32 PSI for the front tires and 36 PSI for the rear tires. Always refer to the sticker on the driver's side door jamb for the most accurate information.
To replace the battery, remove the key blade by pressing the release button. Use a small screwdriver to gently pry open the key fob. Replace the old battery with a new CR2032 battery, ensuring the positive side faces up. Snap the fob back together and reinsert the key blade.
Engine overheating can be caused by a low coolant level, a faulty thermostat, or a malfunctioning radiator fan. Check the coolant level and inspect for leaks. If the problem persists, consult a mechanic to diagnose and fix the issue.
It's recommended to change the oil and oil filter every 7,500 miles or 12 months, whichever comes first. However, more frequent changes may be necessary if the vehicle is driven in extreme conditions.
If the check engine light comes on, check for any obvious issues such as a loose gas cap. If no issues are found, have the vehicle's error codes read by a professional to diagnose the problem. Continuing to drive with the light on can cause damage.
To maintain leather seats, clean them regularly with a soft damp cloth. Use a leather cleaner and conditioner every few months to keep the leather supple and prevent cracking. Avoid prolonged exposure to sunlight to reduce fading.