Engine Coolant Mixing

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Using The Chart Below, Determine If The Vehicle Has The Correct Coolant. If A Vehicle Is Found To Have The Incorrect Coolant, Drain And Fill The Coolant System Using The Applicable Service Information Procedure(s).

Mixability of G12_evo with other Coolant Generations

Fig 1: Engine Coolant Mixing Chart

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Coolants Can Be Mixed, As Described In The Chart, But It Is Always Best Practice To Change The Coolant Due To Reduced Corrosion Protection When Coolants Are Mixed (Exception: G12++ And G13 Are Fully Compatible).

Only Use Distilled Water For Mixing Coolant.

Drained Coolant Must Not Be Reused.

NOTE:

When The Coolant Is Changed Due To A Cooling System Issue, The Cooling System Should Be Drained Using The Service Information Procedures In Elsa And Refilled With Water And The Engine Run For 15 Minutes With The Heater On To Remove Any Residual Coolant. Then Drain And Fill The System To The Freeze Protection Ratio Listed In Elsa.

Cooling System Drain And Fill Due To Coolant Mixing, Or Incorrect Coolant, Is Not Covered By Warranty.