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BMW 805A22

MLC: Communication fault timeout FLM-03 left

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceBMW service is appropriate for diagnosis of the reported headlight-related communication fault. Whether service is immediately required is not yet established by verified evidence.
Confidence97%

Quick answer

BMW code 805A22 means: “MLC: Communication fault timeout FLM-03 left.” Verified BMW/NHTSA service-bulletin evidence associates it with a left high-beam headlight fault message.

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 805A22 mean?

BMW code 805A22 means: “MLC: Communication fault timeout FLM-03 left.” Verified BMW/NHTSA service-bulletin evidence associates it with a left high-beam headlight fault message.

2. Technical explanation

Official BMW manufacturer communications filed with NHTSA identify 805A22 as a communication-timeout fault involving the left FLM-03 module and MLC. The bulletins state that this code may be stored during a vehicle test when headlight Check Control messages are displayed.

3. What system is affected?

Headlight/lighting communication system; specifically the left-side FLM-03 communication referenced by the MLC fault description.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Check Control message 128: “Left high beam headlight faulty.”
  • The verified bulletin also lists Check Control message 130: “Right high beam headlight faulty,” alongside the paired right-side code 805BA2.

6. Possible causes

  • Not yet established by verified evidence.

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

  • Arrange diagnosis by a BMW-qualified service provider if the headlight fault message is displayed or code 805A22 is stored.
  • Confirm operation of the vehicle lighting before driving, consistent with applicable local requirements.

10. Step-by-step troubleshooting

  1. Perform a vehicle test and document stored fault code 805A22 and any accompanying Check Control messages.
  2. No further diagnostic procedure is established by the supplied verified evidence.

11. When to contact service

BMW service is appropriate for diagnosis of the reported headlight-related communication fault. Whether service is immediately required is not yet established by verified evidence.

12. What the service center may check

  • Perform a vehicle test for stored code 805A22.
  • Check for the associated left high-beam headlight Check Control message identified in BMW bulletin SIB 63 01 23.
  • Consider whether paired code 805BA2 is also stored, as it is listed in the same bulletin evidence for the right side.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • BMW SIB 63 01 23 / NHTSA Manufacturer Communication 10233164, published February 1, 2023. It identifies 805A22 and 805BA2 in connection with left/right high-beam headlight fault messages.
  • BMW SIB 63 01 23 / NHTSA Manufacturer Communication 10236232, published April 1, 2023. It repeats the association between code 805A22 and the left high-beam headlight fault message.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified official sources: NHTSA Manufacturer Communications 10233164 and 10236232, both identifying BMW SIB 63 01 23. Source URL: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2020-2024.zip#nhtsa_id=10233164

19. Frequently asked questions

What does BMW code 805A22 mean?

It means “MLC: Communication fault timeout FLM-03 left.”

What dashboard message is associated with 805A22?

The verified BMW bulletin lists Check Control message 128: “Left high beam headlight faulty.”

Which vehicles are supported by the supplied evidence?

The supplied applicability evidence covers U.S.-market 2023 BMW XM and 2023 BMW i7 vehicles.

Is 805A22 safe to drive with?

Not yet established by verified evidence.

Does 805A22 affect charging?

Not yet established by verified evidence.

20. Sources & verification

Verified
BMW 805A22: MLC: Communication fault timeout FLM-03 left | EV Diagnostics