Cooling System - Coolant ID/Filling/Mixing Information
19 Identifying and Mixing Factory Fill Engine Coolants19 11 19
2025303/1
February 10, 2011.
AFFECTED VEHICLES
CONDITION
Discontinuation and mixing of Audi approved engine coolants.
TECHNICAL BACKGROUND
G11, G12, and G12+ coolants have been replaced by an improved version.
G12++ coolant (for service available) has been introduced in MY 2005 for all engines.
G13 has been introduced in MY 2008 as factory filling only (not for service available - not needed).
PRODUCTION
No production change required.
SERVICE
Identifying and Mixing Factory Fill Engine Coolants
1. Identify which coolant the vehicle was filled with from the factory.
2. If a vehicle is found to have the incorrect coolant, based on Figure 2, the coolant system should be flushed using the repair manual procedures in ElsaWeb.
^ Coolants can be mixed, as described in the chart, but it is always a best practice to change the coolant due to reduced corrosion protection when coolants are mixed.
^ Exception: G12++ and G13 are fully compatible.
^ Coolants can be mixed, as described in Figure 2, when adding/topping off fluid levels. When the coolant is changed due to a cooling system issue, the cooling system should be flushed using published procedures in ElsaWeb.
Tip: Cooling system flushing due to coolant mixing, or incorrect coolant, is not covered by warranty.
WARRANTY
Informational only.
REQUIRED PARTS AND INFORMATION
No Special tools required.
ADDITIONAL INFORMATION
All part and service references provided in this Technical Bulletin are subject to change and/or removal. Always check with your Parts Department and Repair Manuals for the latest information.