| Note for vehicles with 1.6 L FSI engine (if heater output is poor) |
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| In vehicles with a 1.6 l petrol direct injection engine (FSI), there is an additional switch installed in the heater control electronics. This switch is operated via the temperature preselection rotary knob and using this, the temperature rotary knob position is signalled to the engine control unit. |
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| If, in the engine control unit, a voltage of approx. 3.5 V is present at the input for the signal from the heater controls when the coolant temperature is low, the mixture formation is changed in order to achieve better heating output and, when the engine is warm, the engine cooling map is influenced, and the coolant temperature is thereby limited to approx. 95 °C). For further information → Chapter and → Relevant Workshop Manual, Injection and Ignition system |
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