Thermostat
Main valve opening start temperature,°C: 87.
Full opening temperature of the main valve,°C: 102.
Main valve piston stroke, not less than, mm: 8.
Coolant pump
The coolant pump is installed in the front part of the cylinder block on the left. It is driven by a toothed belt of the camshaft drive. The tension of the drive belt is provided by shifting the axis of rotation of the pump in the lug of the cylinder block.
Expansion tank
Opening pressure of the pressure reducing valve in the tank cap, kg/cm²: 1.20-1.35.
Electric fan
The electric motor of the cooling system fan is switched on and off by the electric fan switch located on the right radiator tank.
Electric fan brand: Bosch.
Fan motor switch-on temperature,°C: 93-98.
Fan motor switch-off temperature,°C; 88-93.
Coolant
Capacity of the interior cooling and heating systems, l: 8.1.
The coolant used is a mixture of distilled water and type "010" antifreeze in a ratio of 60% and 40% (at temperatures down to -25°C).
Replacement frequency: every two years of operation.
(This article was copied from an online resource «AUDIMANUAL.RU»)