BMW 328i Convertible 3 Series 2012 Owner's Manual

To reset the TPMS, turn on the ignition without starting the engine. Navigate to the 'Vehicle Info' on the iDrive screen, then select 'Flat Tire Monitor,' and finally choose 'Reset.' Confirm the reset and drive the vehicle for a few minutes for the system to recalibrate.
For optimal performance, BMW recommends using synthetic 5W-30 or 0W-40 engine oil that meets BMW Longlife-01 specifications. Always check the owner’s manual for specific recommendations.
To connect your phone via Bluetooth, enable Bluetooth on your phone, then access 'Telephone' on the iDrive menu. Select 'Add New Device,' and choose your phone from the list. Enter the passkey shown on the iDrive screen into your phone to complete pairing.
Common symptoms include overheating, coolant leaks, unusual noises from the engine bay, and warning lights on the dashboard. If you notice any of these signs, it's recommended to inspect the water pump immediately.
BMW typically recommends changing the transmission fluid every 60,000 to 100,000 miles, depending on driving conditions. Refer to the service manual for the best maintenance schedule for your vehicle.
To replace the battery, open the trunk and remove the floor cover. Disconnect the negative and then the positive cable from the battery terminals. Remove the securing bracket and lift the battery out. Install the new battery and reconnect the cables in reverse order.
First, check for any obstructions and ensure the trunk partition is in place. If the issue persists, inspect the hydraulic fluid level and the fuses. If necessary, consult a professional technician for further diagnosis and repair.
The recommended tire pressure is typically 32 PSI for the front tires and 35 PSI for the rear tires. Always verify with the tire information label located on the driver’s side door jamb.
To improve fuel efficiency, maintain correct tire pressure, perform regular engine maintenance, avoid aggressive driving, and remove unnecessary weight from the vehicle. Consider using cruise control on highways for better mileage.
A rattling noise could be due to several reasons such as worn timing chain components, loose heat shields, or engine knock. It's advisable to have the engine inspected by a certified mechanic to pinpoint and resolve the issue.