# Service bulletin Circular93D2REV2

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10174395
- Published by NHTSA: 2020\-05\-07
- Manufacturer's number: Circular93D2REV2
- Manufacturer's date: 2020\-04\-21
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

It is possible that the high\-voltage battery housing bonded seam was made in a non\-optimal position. If this condition is present, moisture can enter the high\-voltage battery housing. The driver may be alerted to this condition by the illumination of a high\-voltage system warning indicator on the instrument cluster display. Updated claiming instructions: o Added coolant in the event the high\-voltage battery is replaced o Added seal, part number 5Q0121809A Updated work instructions: o Added examples of possible normal oxidation o Added instruction to place insulating mat over an open battery o Clarified steps when moving high\-voltage battery o Added steps to take if the vehicle arrives with faults Updated instructions to clarify the battery module return process

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10174395-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10174395-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2016 AUDI A3 SPORTBACK E\-TRON

JSON: [/v1/bulletins/10174395](/v1/bulletins/10174395)

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