Volkswagen P2B2800
10/26/2021 Page 4 of 4 © 2021 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time
Quick answer
For a 2021 Volkswagen ID.4 in the US, DTC P2B2800 is addressed in Volkswagen Technical Service Bulletin 93-21-02 (Transaction No. 2064967/1), released October 26, 2021. The bulletin concerns battery cooling pump DTCs P0CFF00 and/or P2B2800 and includes a cooling-system fill/bleed procedure.
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 P2B2800 mean?
For a 2021 Volkswagen ID.4 in the US, DTC P2B2800 is addressed in Volkswagen Technical Service Bulletin 93-21-02 (Transaction No. 2064967/1), released October 26, 2021. The bulletin concerns battery cooling pump DTCs P0CFF00 and/or P2B2800 and includes a cooling-system fill/bleed procedure.
2. Technical explanation
Verified evidence identifies P2B2800 as one of the battery cooling pump DTCs covered by Volkswagen TSB 93-21-02 for the 2021 US-market ID.4. The supplied bulletin excerpt states that, after the specified cooling-system procedure, the technician verifies coolant level in the expansion tank, erases DTCs, and retests. If the DTCs do not return, the bulletin states that procedure 0001, Fill/bleed cooling system, was successful. The supplied evidence does not establish a standalone generic SAE definition for P2B2800.
3. What system is affected?
Battery cooling pump / cooling system, as identified by Volkswagen TSB 93-21-02.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
Not yet established by verified evidence.
6. Possible causes
- The verified bulletin addresses the condition through cooling-system filling/bleeding. A specific underlying root cause is not established by the supplied 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 an authorized Volkswagen service provider or appropriately qualified EV technician.
- Provide the technician with DTC P2B2800 and Volkswagen TSB 93-21-02 / Transaction No. 2064967/1.
- Do not attempt high-voltage or cooling-system repair procedures unless properly trained and equipped.
10. Step-by-step troubleshooting
- Verified service-bulletin steps include verifying coolant level in the expansion tank, clearing DTCs, and retesting after the specified fill/bleed procedure.
- If P2B2800 does not return after the procedure, the bulletin states that the fill/bleed procedure was successful.
11. When to contact service
Service is recommended because Volkswagen issued a TSB specifically covering P2B2800 on the applicable 2021 ID.4. The supplied evidence does not establish whether service is immediately required in every case.
12. What the service center may check
- Apply the relevant Volkswagen bulletin procedure: 0001 – Fill/bleed cooling system.
- Verify the coolant level in the coolant expansion tank.
- Erase DTCs and retest.
- Confirm whether P2B2800 returns after the procedure.
13. Possible repair or resolution
- Volkswagen's verified bulletin-directed resolution is procedure 0001 – Fill/bleed cooling system, followed by coolant-level verification, DTC clearing, and retest.
- If the DTCs do not return, the bulletin states the procedure was successful.
14. Affected vehicles
- Volkswagen ID.4 · 2021 · US
15. Related TSBs / service bulletins
- Volkswagen TSB 93-21-02, Transaction No. 2064967/1, “Battery Cooling Pump DTCs P0CFF00 and/or P2B2800,” release date October 26, 2021. Applicable verified record: 2021 Volkswagen ID.4, US.
16. Recall information
No recall relationship is established by verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication PDF 10202585, Volkswagen TSB 93-21-02 / Transaction No. 2064967/1, published October 26, 2021: https://static.nhtsa.gov/odi/tsbs/2021/MC-10202585-0001.pdf
19. Frequently asked questions
What does P2B2800 mean on a 2021 Volkswagen ID.4?
The supplied verified evidence does not provide a standalone generic definition. Volkswagen's official bulletin identifies it as one of the battery cooling pump DTCs covered by TSB 93-21-02.
Is there a Volkswagen service bulletin for P2B2800?
Yes. Volkswagen TSB 93-21-02, Transaction No. 2064967/1, covers battery cooling pump DTCs P0CFF00 and/or P2B2800 for the verified applicable vehicle record: 2021 US Volkswagen ID.4.
Can P2B2800 be cleared by filling and bleeding the cooling system?
The bulletin directs a fill/bleed procedure followed by coolant-level verification, DTC clearing, and retest. It states the procedure was successful if the DTCs do not return.
Is P2B2800 covered by a recall?
Not yet established by verified evidence.