Tang DM battery tray water-ingress recall: why a breather mounting-surface defect is not a valve-only order

If a Tang DM battery inspection notes an “uneven breather-valve mounting surface”, do not immediately order a valve for replacement. Two related Chinese recalls in 2022 link tray water-ingress risk to inspection and conditional pack replacement. Understanding that relationship avoids rewriting a mounting-surface problem as a failed valve.

The risk concerns the mounting surface, not just the named component

The Apr 29, 2022 notice states that manufacturing issues left breather-valve mounting surfaces uneven on some traction battery trays. This creates a water-ingress risk that may cause electrical circuit faults and, in extreme cases, thermal runaway.[Initial notice][S08]

Mention of a breather valve does not establish that replacing only the valve eliminates the defect. Assess the valve and tray mounting surface separately. A photograph or part name cannot directly reduce rectification to a single-component purchase.

Pack replacement follows qualifying inspection findings, not automatic replacement of every vehicle

Both notices require inspection first. The battery pack is replaced if it has electrical leakage or an uneven tray breather-valve mounting surface.[Initial measure][S08][Expanded action measure][S09]

Do not rewrite this as mandatory immediate pack replacement for every listed vehicle, or as no inspection being needed without visible symptoms. Record the inspection conditions and remedy separately. “Battery checked” or “valve replaced” does not establish whether the specified issue was handled according to this action.

Do not borrow another model's remedy for the same broad water-ingress concern

The published remedy is the inspection and conditional pack replacement above. It provides no alternative procedure for valve-only replacement, reworking the surface or independently applying sealant. Procurement should follow this vehicle's applicable campaign findings rather than another model's battery sealing experience. [To be verified]

Separate the production periods of the two Chinese actions

| Notice and action start date | Listed production period | Quantity |
| --- | --- | ---: |
| 2022-04-29 initial action | 2021-09-02—2022-03-14 | 9663 vehicles |
| 2022-07-29 expanded action | 2021-04-05—2022-04-18 | 52928 vehicles |

The July notice explicitly expands the April action.[Scope relationship][S09] The production periods overlap. Do not simply add notice quantities and claim a deduplicated vehicle total.

Scope and verification

These are historical Chinese recalls for certain Tang DM vehicles only, without extension to overseas same-named vehicles or other models. Neither original text separately lists specific model years or VIN endpoints. No public data was available for specific model years or VIN scope; production periods cannot replace individual eligibility confirmation. [To be verified]

No public data was available for tray, breather or battery pack OE numbers, permission for valve-only repairs or interchangeability. [To be verified] Have the Chinese authorised representative check recall measures by chassis number. Verify ordinary compatibility using the VIN and local manufacturer parts catalogue, and perform high-voltage repairs according to the relevant manufacturer requirements.

For confirmed battery-component requirements, use the parts enquiry page.

[S08]: https://www.samr.gov.cn/zw/zh/art/2023/art_75b795f766fe4881be6b91d3e5239a0c.html
[S09]: https://www.samr.gov.cn/zw/zh/art/2023/art_f2d84f0ca1f24370981a9ebfeb11725a.html