Audi A8 2010 Maintenance Manual page 105

Note
♦ Coolant additives may only be mixed with distilled water, as
the effectiveness of the coolant and the corrosion protection it
provides are greatly influenced by the quality of the water with
which the coolant is mixed. To ensure an adequate water
quality, the coolant additive should be mixed with distilled wa‐
ter.
For approved coolant additives, refer to Electronic parts cata‐
♦
logue (ETKA).
G13 and G12++ may be mixed together.
♦
Coolant additives G13 and G12++ may be mixed with coolant
♦
additives G11, G12 and G12+, though this may result in de‐
creased corrosion protection.
G12 and G11 may NOT be mixed together.
♦
Do not reuse coolant.
♦
Only water/coolant additive may be used as lubricant for cool‐
♦
ant hoses.
Checking coolant level and anti-freeze
Filling up coolant ⇒ page 103
3.49.1 Checking coolant level and anti-freeze
Special tools and workshop equipment required
♦ Refractometer - T10007 A-
Table of test values and procedure guidelines:
Type of service:
Delivery Inspection
Inspection
Checking the coolant system for leaks is a repair measure and
should be charged separately.
Requirements:
• Anti-freeze protection must be guaranteed to -25 °C (in coun‐
tries with an arctic climate to -36 ℃); note specification in
Maintenance table.
• The proportion of coolant additive must not exceed 55 %
(gives anti-freeze protection down to -48 °C); beyond this con‐
⇒ page 101
Coolant level specification:
Coolant at level of MAX marking.
Coolant level between MIN and MAX markings.
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Maintenance - Edition 11.2014
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi A8 2010 ➤
101
3. Maintenance