⚠️ BMW manufacturer position
BMW i4 service focuses on high-voltage de-energization for relevant work. There is no fuel tank drain procedure; improper fluids in non-fuel systems are handled per ISTA fluid specifications.
Vehicle information
| Make | BMW |
|---|---|
| Model | i4 |
| Market status | Sold new in the US 2022–present |
| Body styles | Gran Coupe (electric) |
| Generations | G26 BEV (2022–present) |
| Engine options | Electric: Battery-electric drive; no fuel tank |
| Fuel tank capacity | Not applicable (electric vehicle) |
| Fuel system | High-voltage battery pack; no gasoline or diesel fuel system |
| Access method | Not applicable for fuel tank — washer reservoir under hood per ISTA |
| Anti-siphon | Not applicable |
| Service portal | BMW ISTA / BMW TIS (aos.bmwgroup.com) |
Misfuel risk Not applicable
Traditional misfuel (gasoline/diesel in fuel tank) does not apply. Risk is limited to incorrect fluids in washer, brake, or coolant reservoirs—follow HV safety procedures.
If the engine was not started
For wrong fluid in washer/brake/coolant: do not spray or drive if safety systems are affected; tow if necessary.
If the engine was started
If contaminated washer fluid was sprayed, flush lines and replace pump if damaged per ISTA.
Access procedure
- Confirm the concern is not a fuel-tank issue (i4 is battery-electric).
- If incorrect fluid was added to washer or other reservoirs, do not operate related systems.
- Follow BMW high-voltage safety and ISTA procedures before service.
- Drain or flush the affected reservoir per BMW fluid specifications.
- Inspect for leaks or damage; clear faults with ISTA after repair.
Related models
- i5
- 4 Series Gran Coupe
Frequently asked questions
What should I do if I put the wrong fuel in my BMW i4?
Do not start the engine or cycle the ignition to RUN if the fuel pump may prime. Have the vehicle recovered to a USIFDA Certified Repair Facility and follow BMW service information for tank draining and fuel system inspection.
Does BMW warranty cover misfuel damage on an i4?
No. BMW warranties exclude damage from improper or contaminated fuel. Repairs are typically customer-pay; document the OEM-prescribed remediation procedure.
Can fuel be removed from an i4 through the filler neck?
BMW documents fuel recovery via the fuel pump module access and/or tank removal using approved equipment—not filler-neck siphoning. Follow ISTA/TIS or erWin procedures for your model year.
Can you put gas in a BMW i4 by mistake?
The i4 has no fuel filler for gasoline. If a liquid was added somewhere else (e.g., washer reservoir), follow ISTA for that system—do not attempt fuel-tank drain procedures.
Need professional misfuel recovery?
Find a certified operator or read consumer guidance for your next steps.
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