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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSBMW2023Z4 SDRIVE M40IREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSFUEL SYSTEM -- REPAIR (G29)
2023 BMW Z4 sDrive M40i
Fuel System -- Repair (G29)
2023 BMW Z4 sDrive M40iSECTION Fuel System -- Repair (G29)
- 13 31 Fuel Supply Line, Fuel Pressure Check
- Notes regarding the fuel pressure test (reference pressure: surrounding area)
- 13 31 035 Removing and installing/replacing fuel supply line (between low-pressure rail and high-pressure pump) (Z4 sDrive30i)
- 13 31 035 Removing and installing/replacing fuel supply line (between low-pressure rail and high-pressure pump) (Z4 M40i)
- 13 51 Fuel Injection Pump
- 13 53 Fuel Injectors, Fuel Rail
- Clean the cylinder head in the area of the injectors with sandy/dusty contamination
- 13 53 156 Removing and installing high-pressure rail (Z4 sDrive30i)
- 13 53 180 Replace pressure line (between high pressure pump and rail cylinders 1-3) (Z4 sDrive30i)
- 13 53 318 Remove and install all injectors in the injection system (Z4 sDrive30i)
- 13 53 596 Replacing fuel high-pressure sensor (in rail) (Z4 sDrive30i)
- 13 53 080 Remove and install/replace rail at cylinder 1-3 (Z4 M40i)
- Removing the high-pressure rail with injectors of cylinders 1 to 3
- Replacement: Replacing high-pressure rail cylinders 1-3
- Preparing the injectors for installation
- Installing the high-pressure rail with injectors of the cylinders 1 to 3
- Installing the high-pressure line between the high-pressure pump and the high-pressure rail
- 13 53 081 Remove and install/replace rail at cylinder 4-6 (Z4 M40i)
- Removing the high-pressure rail with injectors of cylinders 4 to 6
- Replacement: Replacing high-pressure rail cylinders 4-6
- Preparing the injectors for installation
- Installing the high-pressure rail with injectors of the cylinders 4 to 6
- Installing the high-pressure line between the high-pressure pump and the high-pressure rail
- 13 53 082 Remove, install/replace both rails (Z4 M40i)
- Removing the high-pressure rail with injectors of cylinders 1 to 3
- Removing the high-pressure rail with injectors of cylinders 4 to 6
- Replacing both high-pressure rails
- 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) (Z4 M40i)
- 13 53 301 Removing and installing/replacing injector(s) of the injection system at cylinders 1-3 (Z4 M40i)
- 13 53 302 Removing and installing/replacing the injector(s) of the injection system cylinders 4-6 (Z4 M40i)
- 13 53 318 Remove and install all injectors in the injection system (Z4 M40i)
- 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 (Z4 M40i)
- 13 54 Throttle Body
- 13 62 Engine Sensors
- 13 62 531 Replace coolant temperature sensor (Z4 sDrive30i)
- 13 62 537 Replace coolant temperature sensor (at coolant radiator) (Z4 sDrive30i)
- 13 62 538 Replace charge air temperature sensor (Z4 sDrive30i)
- 13 62 560 Remove and install/replace hot film air mass meter
- 13 62 590 Replacing the pressure sensor (before throttle valve) (Z4 sDrive30i)
- 13 62 592 Replacing the pressure sensor (on charge air cooler) (Z4 sDrive30i)
- 13 62 596 Replacing the differential pressure sensor for the gasoline particulate filter (if necessary, cylinder bank 1) (Z4 sDrive30i)
- 13 62 679 Replace temperature sensor for oil/coolant (on crankcase) (Z4 sDrive30i)
- 13 62 531 Replace coolant temperature sensor (Z4 M40i)
- 13 62 537 Replace coolant temperature sensor (at coolant radiator) (Z4 M40i)
- 13 62 538 Replace charge air temperature sensor (Z4 M40i)
- 13 62 590 Replacing the pressure sensor (upstream of the throttle valve) (Z4 M40i)
- 13 62 592 Replacing the pressure sensor (on charge air cooler) (Z4 M40i)
- 13 62 596 Replacing the differential pressure sensor for the gasoline particulate filter (cylinders 1-3) (Z4 M40i)
- 13 62 679 Replacing temperature sensor for oil/coolant (on crankcase) (Z4 M40i)
- 13 71 Intake Silencer
- 13 71 000 Remove and install intake filter housing (Z4 sDrive30i)
- 13 71 035 Removing and installing/replacing clean air pipe (Z4 sDrive30i)
- 13 71 044 Removing and installing/replacing charge air line (Z4 sDrive30i)
- 13 71 000 Remove and install intake filter housing (Z4 M40i)
- 13 71 044 Removing and installing/replacing charge air line (Z4 M40i)
- 13 72 Engine Air Filter
- 13 90 EVAP Canister Purge Valve
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.