BMW 3 Series 2018-2023 Owners Manual: 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.
Climate control
Automatic climate control
Temperature.
Recirculated-air mode.
Maximum cooling.
AUTO program.
Air distribution, manual.
Switching off.
Defrost and defog the
windshield.
Rear window defroster.
...
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 ...
Other materials:
Reassembly
1. INSTALL NO. 1 SEAT CUSHION FRAME SUBASSEMBLY
Install the seat cushion frame with the bolt.
Torque: 20.6 N*m (210 kgf*cm, 15 ft.*lbf)
2. INSTALL RECLINING CONTROL LINK SUBASSEMBLY
Install the reclining control link with the E-ring.
Install the nut.
3. INSTALL RE ...
Rear blower resistor
ON-VEHICLE INSPECTION
1. INSPECT REAR BLOWER MOTOR CONTROLLER
(a) Measure resistance according to the value(s) in the
table below..
Standard resistance
If the resistance is not as specified, replace the rear
blower motor controller.
(b) Inspect the rear blower motor controller.
(1 ...
Active test
HINT:
Performing an ACTIVE TEST enables components
including the relays, VSV (Vacuum Switching Valve), and
actuators, to be operated without removing any parts.
The ACTIVE TEST can be performed with an intelligent
tester. Performing an ACTIVE TEST in the first step in
troubleshooting is one ...
