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BMW Engine compartment lid contact switch: Line fault or faulty

Engine compartment lid contact switch: Line fault or faulty

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a BMW authorized service center or qualified BMW repair provider for diagnosis, particularly if the warning remains displayed with the hood closed.
Confidence90%

Quick answer

For 2022–2024 BMW iX vehicles in the US, OEM alert 80415B indicates an engine-compartment lid (hood) contact-switch line fault or a faulty switch. Verified BMW/NHTSA evidence links it to a “811 – Stop carefully. Hood open” message appearing while the hood is closed.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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1. What does Engine compartment lid contact switch: Line fault or faulty mean?

For 2022–2024 BMW iX vehicles in the US, OEM alert 80415B indicates an engine-compartment lid (hood) contact-switch line fault or a faulty switch. Verified BMW/NHTSA evidence links it to a “811 – Stop carefully. Hood open” message appearing while the hood is closed.

2. Technical explanation

The verified manufacturer communication states that fault code 80415B may be stored in the BCP module when the Check Control message “811 – Stop carefully. Hood open” is displayed despite the hood being closed. The communication identifies corrosion of pin contacts in connector X149*1B as the stated cause.

3. What system is affected?

Engine-compartment lid (hood) contact-switch circuit; the cited fault may be stored in the BCP module.

4. How serious is this code?

Unknown. The supplied diagnostic record does not establish a severity classification.

5. Symptoms you may notice

  • Check Control message: “811 – Stop carefully. Hood open”.
  • The hood-open message may appear even though the hood is closed.
  • Fault code 80415B may be stored in the BCP module.

6. Possible causes

  • Corrosion of the pin contacts in connector X149*1B.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Do not attempt high-voltage repairs based on this alert.
  • Arrange diagnosis by a qualified BMW service provider if the hood-open warning is displayed or code 80415B is present.

10. Step-by-step troubleshooting

  1. The official communication directs inspection of the washer-fluid level sensor; further detailed diagnostic steps are not established by the supplied verified evidence.
  2. A qualified service provider can evaluate connector X149*1B and the engine-compartment lid contact-switch circuit.

11. When to contact service

Contact a BMW authorized service center or qualified BMW repair provider for diagnosis, particularly if the warning remains displayed with the hood closed.

12. What the service center may check

  • Confirm whether Check Control message “811 – Stop carefully. Hood open” is present while the hood is closed.
  • Check whether fault code 80415B is stored in the BCP module.
  • Inspect the washer-fluid level sensor as directed by the cited manufacturer communication.
  • Inspect connector X149*1B pin contacts for corrosion.

13. Possible repair or resolution

  • The supplied evidence identifies inspection of the washer-fluid level sensor and connector X149*1B pin-contact corrosion. A final repair procedure is not fully established by the supplied evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication 11008117, BMW bulletin B612124, published September 25, 2024. It addresses Check Control message “811 – Stop carefully. Hood open” displayed with the hood closed and fault code 80415B stored in the BCP module. The cited cause is corrosion of pin contacts in connector X149*1B.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official source: NHTSA Manufacturer Communication 11008117, BMW B612124: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2020-2024.zip#nhtsa_id=11008117

19. Frequently asked questions

What does BMW code 80415B mean?

It means “Engine compartment lid contact switch: Line fault or faulty.”

Why can the BMW iX say the hood is open when it is closed?

The cited BMW/NHTSA communication states that corrosion of pin contacts in connector X149*1B can cause the message to appear while the hood is closed.

Which vehicles are covered by the supplied applicability data?

BMW iX model years 2022 through 2024 in the United States.

Is it safe to drive or charge?

Not yet established by verified evidence.

20. Sources & verification

Verified
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