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Service Bulletin

2021-2022 Audi 4.0 TFSI Misfire Valve Spring TSB

Audi Technical Service Bulletin 2065684/1 addresses engine misfiring and rough running in 2021-2022 A6, A7, S6, S7, RS 6, and RS 7 models with the 4.0 TFSI EA825 engine. The issue is linked to possible broken valve springs and DTCs P030000 through P030800.

Byeditor david chen2022 Audi A6
2022 Audi A6 — Audi 4.0 TFSI misfiring P030000
Editorial illustration generated for this article.
P030000P030100P030200P030300P030400P030500P030600P030700P0308002065684/1

Also applies to

Audi A6
2021
Audi A6 allroad
2021
Audi A7
2021–2022
Audi A7 e
2021–2022
Audi RS 6 Avant
2021–2022
Audi RS 7
2021–2022
▸ Show 2 more
Audi S6
2021–2022
Audi S7
2021–2022

Symptoms

Owners of affected 2021-2022 Audi vehicles may experience their engine not running smoothly. This condition is often accompanied by the Malfunction Indicator Lamp (MIL) illuminating or flashing on the dashboard.

Fault Codes / DTCs

When diagnosing the issue of an Audi 4.0 TFSI misfiring P030000, technicians may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the engine control module:

Code Description
P030000 Random/Multiple Cylinder Misfire Detected
P030100 Cylinder 1 Misfire Detected
P030200 Cylinder 2 Misfire Detected
P030300 Cylinder 3 Misfire Detected
P030400 Cylinder 4 Misfire Detected
P030500 Cylinder 5 Misfire Detected
P030600 Cylinder 6 Misfire Detected
P030700 Cylinder 7 Misfire Detected
P030800 Cylinder 8 Misfire Detected

Diagnosis and Trigger Conditions

This issue stems from a raw material quality problem at the supplier, affecting valve springs in specific 4.0 TFSI EA825 engines. The affected engines were produced during various periods in 2021, depending on the engine code:

  • Engine code CXYA: June 15, 2021, up to and including November 10, 2021
  • Engine code CWWB: June 14, 2021, up to and including November 16, 2021
  • Engine code DCUE: June 16, 2021, up to and including November 12, 2021
  • Engine code DHUB: June 8, 2021, up to and including November 13, 2021
  • Engine code DJPB: June 16, 2021, up to and including November 19, 2021

Improved valve springs were introduced in production after these dates. Diagnosis involves verifying the customer's complaint, performing a compression check on all cylinders, and inspecting valve springs in the cylinder with the lowest compression. A borescope is used to check for contact between the piston and valve head if a broken valve spring is identified.

Repair Procedure Summary

For vehicles exhibiting an Audi 4.0 TFSI misfiring P030000 and a broken valve spring, Audi Technical Service Bulletin 2065684/1 outlines the following steps:

  1. Verify Customer Complaint: Confirm the reported symptoms of engine not running smoothly or MIL illumination.
  2. Compression Check: Perform a compression test on all engine cylinders. This step follows instructions found in

Frequently Asked Questions

What is Audi TSB 2065684/1 about?
Audi Technical Service Bulletin 2065684/1 addresses engine misfiring and rough running conditions in certain 2021-2022 Audi A6, A7, S6, S7, RS 6, and RS 7 models equipped with the 4.0 TFSI EA825 engine. It identifies a possible broken valve spring as the root cause.
What are the common symptoms of this issue?
Owners may notice their engine not running smoothly, and the Malfunction Indicator Lamp (MIL) may illuminate or flash on the dashboard. These symptoms are typically associated with an Audi 4.0 TFSI misfiring P030000.
Which DTCs are associated with a broken valve spring in the 4.0 TFSI engine?
The TSB lists several Diagnostic Trouble Codes (DTCs) that may be stored in the engine control module, including P030000 (random/multiple cylinder misfire) and specific cylinder misfire codes from P030100 to P030800.
Will my warranty cover the repair for a broken valve spring?
The repair may be covered under Audi's New Vehicle Limited Warranty (up to 48 months/50,000 miles) or Certified Pre-Owned (CPO) warranty (G10). If the vehicle is outside of any warranty, this Technical Service Bulletin is for informational purposes only, and repair costs would typically be the owner's responsibility.
What should I do if my Audi 4.0 TFSI engine is misfiring?
If your 2021-2022 Audi with the 4.0 TFSI EA825 engine is experiencing misfires or the MIL light is on, it is recommended to take it to an authorized Audi dealership. They can diagnose the issue, check for related DTCs, and perform the necessary repairs as outlined in TSB 2065684/1.

Other revisions of this TSB

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