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G.
♦ Refractometer - T10007 A-
Note
Read precise value for the following tests at light/dark boundary.
Using a pipette, place a drop of water on the glass to improve the
readability of the light/dark boundary. The bright/dark boundary
can be clearly recognised on the “WATERLINE”.
– Check concentration of coolant additive using refractometer -
T10007 A- (refer to operating instructions).
The scale -1- of the refractometer is calibrated for coolant addi‐
tives G12; G12 Plus, G12 Plus Plus and G11.
The scale -2- is only calibrated for coolant additive G13.
– If frost protection is insufficient, drain some coolant and top up
.
Note
♦
If the currently used coolant additive cannot be determined
precisely, use the scale -2- for coolant additive G13.
♦
Please observe disposal instructions!
– Check coolant additive concentration after road test again.
4.23.2
Coolant level: checking, replenishing
coolant if necessary
– Check coolant level in coolant expansion tank with engine
cold.
♦ Delivery inspection: coolant level is at least at marking -1-.
♦ At delivery inspection a coolant level above marking -1- is per‐
missible.
♦ The excessive amount of coolant does not need to be extrac‐
ted as the coolant level in new vehicles will decrease after the
system has been bled.
♦ Inspection: coolant level is above “min. marking” -2-.
Tiguan 2016 ➤ , Tiguan RUS 2017 ➤
Maintenance - Edition 08.2017
66
4. Descriptions of work:
