2021-2023 Audi Q5 Cylinder Head Oil Residue TSB

Audi has released Technical Service Bulletin (TSB) 2072716/3 to address a concern regarding oil residue found on the cylinder head cover of certain 2021-2023 Audi Q5 vehicles equipped with the 2.0L TFSI (inline 40cyl.) engine. This bulletin, dated June 12, 2024, supersedes a previous bulletin, Group 15 number 24-49, issued on May 16, 2024.

The TSB provides important information for technicians to diagnose and repair the source of the oil residue, ensuring the proper function and cleanliness of the engine compartment. Owners of affected vehicles experiencing this issue should be aware of the recommended repair procedure.

Symptoms

Owners of the 2021-2023 Audi Q5 may notice the presence of oil residue on the cylinder head cover. This is the primary symptom reported by customers. Upon inspection, workshop technicians have identified that the cylinder head cover is leaking. The leakage typically occurs specifically in the area around the threaded connection of one or multiple bolts securing the cover.

Diagnosis and Trigger Conditions

The root cause of the oil residue and leakage is attributed to burrs on the cylinder head cover bolts. These burrs, which are imperfections caused during the threading process of the screws, can prevent the bolts from being properly tightened and seated. When the bolts are not sufficiently secure, they can become loose over time, leading to oil seeping out around the threaded connections.

Audi's production solution for this issue involves adjustments and verification of the tool used for material feeding by the screw supplier, aiming to prevent the formation of these burrs in newly manufactured components.

Repair Procedure Summary

The recommended service procedure for addressing the Audi Q5 cylinder head oil residue involves replacing the affected bolt(s). Technicians are instructed to identify the specific bolt(s) that are leaking and replace them. It is crucial to ensure that replacing these bolts effectively remedies the leaking condition to prevent recurrence of the oil residue on the cylinder head cover.

Warranty Information

This Technical Service Bulletin 2072716/3 outlines specific warranty claim types and conditions for the repair. The claim types include:

• 110: For vehicles within 48 months or 50,000 miles of service.
• G10: Applicable for Certified Pre-Owned (CPO) vehicles, subject to owner verification.

Important Warning: If the vehicle is outside of any applicable warranty period, this Technical Service Bulletin is informational only, meaning the repair may not be covered under warranty. The service number for this repair is 1570, and the damage code is 0050.

Labor operations associated with this repair include:

• Remove and install engine cover: Labor operation code 1083 1900.
• Remove and install ignition coil (if necessary): Labor operation codes 2820 19xx or 2820 20xx.
• Secure camshaft housing: Labor operation code 1503 1399 (20 TU).
• Engine Clean: Labor operation code 1001 2952 (20 TU).

Diagnostic time for road tests both prior to and after the service procedure is listed as