2021-2023 Audi Q5 Cylinder Head Oil Leak TSB

Audi has released Technical Service Bulletin (TSB) 15 24 49 2072716/2, also known as TSB 2072716/2, addressing an issue of oil residue on the cylinder head cover in certain 2021-2023 Audi Q5, Q5 e quattro, and SQ5 models equipped with the 2.0 ltr. TFSI inline 4-cylinder engine. This bulletin, revised on May 16, 2024, supersedes an earlier TSB, Group 15 number 24-47, dated January 18, 2024.

Symptoms of an Audi Q5 Cylinder Head Oil Leak

Owners of affected vehicles may notice visible oil residue on the cylinder head cover. Upon inspection, technicians have found that the cylinder head cover is leaking specifically in the area around the threaded connection of one or multiple bolts. This is a clear indicator of an Audi Q5 cylinder head oil leak.

Technical Background and Diagnosis

The root cause of this oil leak is identified as burrs on the cylinder head cover bolts. These burrs can prevent the bolts from properly seating and tightening, causing them to become loose over time. The loose connection then allows oil to seep out, resulting in the observed oil residue. Figure 1 in the original bulletin illustrates this oil on the threaded connection.

Audi notes that the burrs on the screws are a result of the threading process during manufacturing. The manufacturer has implemented a production solution involving the adjustment and verification of the tool used for material feeding by the screw supplier to prevent this issue in future vehicles.

Repair Procedure Summary

To resolve the Audi Q5 cylinder head oil leak, the primary service action outlined in TSB 2072716/2 is to replace the affected bolt(s). Technicians are instructed to ensure that replacing these bolts effectively remedies the leaking condition. The repair process may involve several labor operations, including:

• Removing and installing the engine cover.
• Removing and installing ignition coils (if necessary).
• Securing the camshaft housing.
• Cleaning the engine area.

Warranty Information

This repair is covered under warranty for vehicles up to 48 months or 50,000 miles, whichever comes first (Claim Type 110). For Certified Pre-Owned (CPO) vehicles, coverage falls under Claim Type G10, requiring verification of owner eligibility. The Service Number for this bulletin is 1570, and the Damage Code is 0050. Warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

Important Warnings for Owners

Owners should be aware that if their vehicle is outside of the specified warranty period, this Technical Service Bulletin is for informational purposes only. This means that any repairs performed for this issue on out-of-warranty vehicles may not be covered by Audi and could incur costs for the owner.

Owner Action

If you own a 2021-2023 Audi Q5, Q5 e quattro, or SQ5 and observe oil residue on your cylinder head cover, it is recommended to contact your authorized Audi dealership. Inform them about the symptoms you're experiencing, mentioning the potential Audi Q5 cylinder head oil leak and referencing Technical Service Bulletin 2072716/2. The dealership will be able to diagnose the issue and perform the necessary repairs according to Audi's guidelines.

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Source: NHTSA ID: 11002217