BMW 3: Refueling
Refueling
Fuel cap
1. To open the fuel filler flap, press on the rear edge, arrow. The fuel filler flap opens.
2. Turn the fuel cap counterclockwise.
3. Place the fuel cap in the bracket attached to the fuel filler flap.
Gasoline
For the best fuel efficiency, the gasoline should be sulfur-free or very low in sulfur content.
Fuels that are marked on the gas pump as containing metal must not be used.
Wheels and tires
Tire inflation pressure specifications
The tire inflation pressure specifications can be found in the tire inflation pressure table in the printed Owner's Manual.
After correcting the tire inflation pressure
With runflat tires: Reinitialize the Flat Tire Monitor.
With Tire Pressure Monitor TPM: The corrected tire inflation pressures are applied automatically. Make sure that the correct tire settings have been made.
With tires that cannot be found in the tire pressure values on the Control Display, reset the Tire Pressure Monitor TPM.
Checking the tire inflation pressure
Regularly check the tire inflation pressure and correct it as needed:
- At least twice a month.
- Before embarking on an extended trip.
Cleaning the wheels
The friction during hard braking may produce brake dust and make the rims dirty. Brake dust can be removed by cleaning the rims. BMW recommends using vehicle care and cleaning products from BMW.
Electronic oil measurement
Functional requirements
A current measured value is available after approx. 30 minutes of normal driving.
Displaying the engine oil level
Via iDrive:
1. "CAR".
2. "Vehicle status".
3. 
"Engine oil level".
Different messages appear on the Control Display depending on the engine oil level. Pay attention to these messages.
Adding engine oil
General information
Safely park the vehicle and switch off drive-ready state before adding engine oil.
Adding
Only add engine oil when the message is displayed in the instrument cluster.
Observe the quantity to be added in the message.
Take care not to add too much engine oil.
Observe recommended engine oil types.
READ NEXT:
Providing assistance
Hazard warning flashers
The button is located in the center console.
Breakdown assistance
BMW Roadside Assistance
Via iDrive:
1. "APPS".
2. "Installed apps".
3. "BMW Assist".
4. If necessary, "BMW
In the vicinity of the steering wheel
Safety switch
Power windows
Exterior mirror operation
Central locking system
Unlocking
Locking
Seating comfort features
Memory function
Lights
Front fog lights
Light switch
Lights
SEE MORE:
Chain drive - Crankshaft drive
Features:
Chain drive at the side of the engine emitting the forces.
Single-part chain drive for driving the camshafts.
Single sleeve-type chain 8 mm.
Electric motor of the combined oil-vacuum pump via a separate chain.
Plastic tensioning and guide rail.
Hydraulic chain tensioner with sp
Replacing the battery
1. Remove the integrated key from the vehicle
key.
2. Place the integrated key underneath the battery
compartment cover, arrow 1, and lift the
cover with a lever movement of the
integrated key, arrow 2.
3. Push battery in the direction of the arrow using
a pointed object and lift it out.
4. Inser
