♦ 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 light-dark border 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 coolant and supplement
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.
4.27.2
Coolant level: checking, replenishing
coolant if necessary
– Check coolant level in expansion tank when engine is cold.
♦ Delivery inspection: coolant level above “min” marking
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♦ Inspection service: coolant level above “min” marking
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– If coolant is too low, add required amount according to mixture
ratio.
Note
If fluid loss is greater than can be expected through normal use,
determine source and rectify (repair measure).
Passat 2011 ➤ , Passat Variant 2011 ➤
Maintenance - Edition 01.2019
96
4. Descriptions of work: