Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2021430I 2D COUPEREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSFUEL SYSTEM -- REPAIR (G22, G23 & G26)
2021 BMW 430i 2D Coupe
Fuel System -- Repair (G22, G23 & G26)
2021 BMW 430i 2D CoupeSECTION Fuel System -- Repair (G22, G23 & G26)
- 13 31 Fuel Pressure Check, Fuel Line
- Notes regarding the fuel pressure test (reference pressure: surrounding area) (4' Series coupe, convertible, and Gran Coupe sedan)
- 13 31 035 Removing and installing/replacing fuel supply line (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 31 035 Removing and installing/replacing fuel supply line (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 51 High-Pressure Fuel Injection Pump
- 13 53 Fuel Injectors, Fuel Rail, Fuel Line, Pressure Sensor
- Clean the cylinder head in the area of the injectors with sandy/dusty contamination (4' Series coupe, convertible, and Gran Coupe sedan)
- 13 53 156 Remove and install high-pressure rail (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 53 180 Replace pressure line (between high pressure pump and pressure accumulator) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 53 318 Remove and install all injectors in the injection system (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 53 596 Replacing fuel high-pressure sensor (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 53 080 Remove and install/replace rail at cylinder 1-3 (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 53 081 Remove and install/replace rail at cylinder 4-6 (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 53 082 Remove and install/replace both rails (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- Removing the high-pressure rail with injectors of cylinders 1 to 3
- Removing the high-pressure rail with injectors of cylinders 4 to 6
- Preparing the injectors for installation
- Installing the high-pressure rail with injectors of the cylinders 4 to 6
- Installing the high-pressure rail with injectors of the cylinders 1 to 3
- 13 53 180 Replace pressure line (between high pressure pump and pressure accumulator) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 53 301 Removing and installing/replacing injector(s) of the injection system at cyl. 1-3 (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 53 302 Removing and installing/replacing the injector(s) of the injection system cyl. 4-6 (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 53 318 Remove and install all injectors in the injection system (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- Removing the high-pressure rail with injectors of cylinders 1 to 3
- Removing the high-pressure rail with injectors of cylinders 4 to 6
- Preparing the injectors for installation
- Installing the high-pressure rail with injectors of the cylinders 4 to 6
- Installing the high-pressure rail with injectors of the cylinders 1 to 3
- 13 53 596 Replacing fuel high-pressure sensor (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 54 Throttle Body
- 13 62 Engine Sensors
- 13 62 531 Replace coolant temperature sensor (RWD) (430i coupe and Gran Coupe sedan)
- 13 62 537 Replace coolant temperature sensor (at coolant radiator) (RWD) (430i coupe and Gran Coupe sedan)
- 13 62 538 Replace charge air temperature sensor (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 560 Remove and install/replace hot film air mass meter (4' Series coupe, convertible, and Gran Coupe sedan)
- 13 62 590 Replacing the pressure sensor (upstream of the throttle body) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 592 Replacing the pressure sensor (on charge air cooler or charge air pipe, right) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 596 Replacing the differential pressure sensor for the gasoline particulate filter (if necessary, cylinder bank 1) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 679 Replace temperature sensor for oil/coolant (on crankcase) (RWD) (430i coupe and Gran Coupe sedan)
- 13 62 532 Replace coolant temperature sensor (RWD) (M440i coupe and Gran Coupe sedan)
- 13 62 537 Replace coolant temperature sensor (at coolant radiator) (RWD) (M440i coupe and Gran Coupe sedan)
- 13 62 538 Replace charge air temperature sensor (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 590 Replacing the pressure sensor (upstream of the throttle body) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 592 Replacing the pressure sensor (on charge air cooler or charge air pipe, right) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 596 Replacing the differential pressure sensor for the gasoline particulate filter (if necessary, cylinder bank 1) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 679 Replace temperature sensor for oil/coolant (on crankcase) (RWD) (M440i coupe and Gran Coupe sedan)
- 13 62 532 Replace coolant temperature sensor (AWD) (M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 537 Replace coolant temperature sensor (at coolant radiator) (AWD) (M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 679 Replace temperature sensor for oil/coolant (on crankcase) (AWD) (M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 62 531 Replace coolant temperature sensor (430i Convertible)
- 13 62 537 Replace coolant temperature sensor (at coolant radiator) (430i Convertible)
- 13 62 679 Replace temperature sensor for oil/coolant (on crankcase) (430i Convertible)
- 13 62 531 Replace coolant temperature sensor (AWD) (430i xDrive Convertible)
- 13 62 537 Replace coolant temperature sensor (at coolant radiator) (AWD) (430i xDrive Convertible)
- 13 62 679 Replace temperature sensor for oil/coolant (on crankcase) (AWD) (430i xDrive Convertible)
- 13 62 532 Replace coolant temperature sensor (RWD) (M440i Convertible)
- 13 62 537 Replace coolant temperature sensor (at coolant radiator) (RWD) (M440i Convertible)
- 13 62 679 Replace temperature sensor for oil/coolant (on crankcase) (RWD) (M440i Convertible)
- 13 62 900 Replace oil temperature sensor 1 (M440i and M440i xDrive Gran Coupe sedan)
- 13 62 901 Replace oil temperature sensor 2 (M440i and M440i xDrive Gran Coupe sedan)
- 13 71 Intake Silencer
- 13 71 000 Remove and install intake filter housing (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 71 035 Removing and installing/replacing clean air pipe (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 71 044 Removing and installing/replacing charge air line (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
- 13 71 000 Remove and install intake filter housing (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 71 035 Removing and installing/replacing clean air pipe (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 71 044 Removing and installing/replacing charge air line (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
- 13 72 Engine Air Filter
- 13 90 EVAP Canister Purge Valve
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.