2021-2022 Audi e-tron Coolant Valve N632 Leak TSB
Audi has issued Technical Service Bulletin 2067941/4 for 2021-2022 e-tron and e-tron Sportback models concerning coolant leaks from the N632 valve. This TSB addresses minor leaks that can occur in cold conditions.
Sarah Mitchell2022 Audi e-tron
Si applica anche a
- Audi e-tron
- 2021
- Audi e-tron Sportback
- 2021–2022
Owners of 2021-2022 Audi e-tron and e-tron Sportback vehicles may encounter issues related to a cooling system leak from the coolant valve N632. Audi has released Technical Service Bulletin (TSB) 2067941/4 to address this specific problem, which can manifest as visible coolant traces or a low coolant warning.
Symptoms
Owners might notice the following indications of an Audi e-tron coolant leak N632:
- Visible coolant traces: Traces of coolant can be seen under the vehicle.
- Coolant warning lamp: The coolant warning lamp appears in the instrument cluster.
- Low coolant level: A low coolant level in the expansion tank is observed during service, not attributable to other known leaks or the electric motor's drip container.
Technical Background
The root cause of the Audi e-tron coolant leak N632 is related to the elastomer material used in the coolant valve N632, part number 4KE963375K. This material can lead to minor leaks, particularly at very low temperatures, in rare cases.
Vehicles produced between October 1, 2018, and February 22, 2022, are potentially affected. Audi implemented a production solution with an improved coolant valve from February 23, 2022, onward.
Diagnosis
To diagnose the cooling system leak, a technician will perform specific steps using a diagnostic tester to identify the type of regulating valve fitted. The process involves:
- Selecting
Frequently Asked Questions
- What is TSB 2067941/4 about?
- TSB 2067941/4 addresses a cooling system leak from the coolant valve N632 in certain 2021-2022 Audi e-tron and e-tron Sportback vehicles. The leak is typically caused by the elastomer material in the valve, especially in cold conditions.
- What are the common symptoms of an Audi e-tron coolant leak N632?
- Owners might observe traces of coolant under the vehicle, a coolant warning lamp illuminating in the instrument cluster, or a low coolant level in the expansion tank during routine service.
- How does a technician diagnose the N632 coolant valve issue?
- Technicians use a diagnostic tester to perform a 'Self-test' on the Thermal Management Control Module (J1024, 00C5). They will identify the specific regulating valve fitted. If the valve has an 'K' index (part number 4KE963375K), it may require replacement after a visual check. If it has an 'Q' index, the TSB does not apply.
- Is the repair for the Audi e-tron coolant leak N632 covered under warranty?
- Yes, warranty claims for this issue are processed under Service Number 1985 and Damage Code 0050, in accordance with Audi's Warranty Policies and Procedures Manual. Owners should consult their Audi dealer for specific warranty coverage details.
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