19 Coolant Marks On The Filler Cap For The Cooling System (GROUP 19, NO. 21-22)
Reference number: GROUP 19, NO. 21-22
Supersedes refnos: 2046712, 2046712/1, 2046712/2, 2046712/3, GROUP 19, NO. 17-77, GROUP 19, NO. 17-89
19 COOLANT MARKS ON THE FILLER CAP FOR THE COOLING SYSTEM
TECHNICAL SERVICE BULLETIN
| AUDI: | 2012 - 2021 All Models |
| GROUP: | 19 - Engine - Cooling System |
APPLICABLE MODELS AND YEARS
19 21 22 2046712/3 July 26, 2021. Supersedes Technical Service Bulletin Group 19 number 17-89 dated July 14, 2017 for reasons listed below.
| Model(s) | Year | VIN Range | Vehicle-Specific Equipment |
|---|---|---|---|
| All | 2012 - 2021 | All | Not Applicable |
CONDITION
| Revision | Date | Purpose |
|---|---|---|
| 3 | - | Revised header (Added MY 2021) Revised Required Parts and Tools (Updated part number) |
| 2 | 07/14/2017 | Revised Required Parts and Tools (Added part number) |
| 1 | 02/03/2017 | Initial publication |
Customer statement:
- MIL on with low coolant level.
Or
- Coolant leak under front of the vehicle.
Workshop findings:
- Coolant marks around coolant filler cap for cooling system/around coolant expansion tank.
TECHNICAL BACKGROUND
The pressure relief valve in the filler cap of the cooling system can give the impression that the valve malfunctions.
PRODUCTION SOLUTION
Not applicable.
SERVICE
Coolant marks around the filler cap or the coolant expansion tank do not necessarily indicate that the cap is malfunctioning.
Check the filler cap of the cooling system according to the Elsa, if the filler cap passes the test do not replace the cap, continue the fault finding.
WARRANTY
This TSB is informational only and not applicable to any Audi Warranty.
REQUIRED PARTS AND TOOLS
| Tool Number | Tool Description |
|---|---|
| VAG1274B | Cooling system tester |
| VAG1274/8 | Cooling system tester-Adapter |
| VAG1274/9 | Cooling system tester-Adapter |
| VAG1274B/15 | Cooling system tester-Adapter |
ADDITIONAL INFORMATION
Always check with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
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