| Installation is carried out in the reverse order of removing, noting the following: |
Note | t
| Lightly oil the O-rings with oil from the refrigerant circuit just before fitting → Chapter. |
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| Only ever start the engine after the complete assembly of the refrigerant circuit. |
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| Following the fitting of a new compressor or refilling the refrigerant oil (after cleaning the refrigerant circuit) and before fitting the Poly-V belt, operate the compressor by hand for about 10 rotations before restarting the engine to avoid damage to the compressor. |
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| Engine as soon as refrigerant circuit has been properly assembled. |
Note | t
| The compressor is always powered by a pulley (there is no magnetic coupling): |
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| To prevent compressor damage when refrigerant circuit is empty, compressor is provided with an “internal oil circuit”. There must be a minimum of refrigeration oil in the compressor for the internal lubrication to work correctly. |
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| Engine is not to be started unless refrigerant circuit has been properly assembled. If, for example, refrigerant pipes have not been connected to compressor, heat generation inside compressor with engine running may lead to destruction of compressor. |
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| The Compressor regulation valve, air conditioning -N280- is not activated when refrigerant circuit is empty and compressor runs at idle with engine. |
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| However, given that there is no refrigerant, the refrigeration oil necessary for compressor lubrication is not moved. |
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| To avoid damage to the compressor, the lubrication of the compressor is secured by a “internal lubrication circuit”. |
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| If the engine must be started with the refrigeration circuit empty: |
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| The refrigeration circuit must be assembled completely. |
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| There must be a minimum of 25 % of the required refrigeration oil for the lubrication circuit. |
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| The engine speed must not go above the 2500 rpm. |
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| The engine must only be used for the minimum amount of time. |
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| When starting the engine for the first time following the filling of the refrigeration circuit, note the following: |
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| Start the engine with the compressor deactivated. (For the Climatronic system, operation mode “Econ”, for the Climatic system, the button “AC” off) and wait until the stable idle engine speed has been reached. |
| Vehicles fitted with Climatronic: |
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| Temperature selection at lowest (for driver and passenger side) Climatronic control unit -J255-. |
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| Now activate the compressor (operation mode “Auto” and “Econ” off) and let it run at least, 5 min. with the engine idling. |
| Vehicles fitted with Climatic |
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| With the button “AC” pressed, the speed “1” of the Fresh air turbine -V2- is selected along with the lowest possible temperature. |
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| Open all dashboard vents. |
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