1. When the vehicle make a corresponding easing of the air conditioning system at the service station.
2. Turn the control knob operation of the heater to the maximum heating (HOT). Drain the cooling system (see chap. Adjustment and routine maintenance). If the replacement coolant made recently, save it for later use.
3. Disconnect the negative wire from the battery.  | If installed on the car stereo is equipped with a security code before to disconnect the battery make sure that have a correct combination for audiosystem input in action! |
 | 4. In the engine compartment, disconnect the hose from the engine cooling path inlet and outlet ports of the heat exchanger of a heater on the rear bulkhead of the engine compartment.  | "Become attached" would be wiser to cut the hoses to prevent accidental damage to the pipes. |
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5. Release of the engine compartment bulkhead rubber bushing tube heat exchanger heating pipes.
 | 6. If appropriate, disconnect the vehicle refrigeration line from the evaporator coil of the air conditioner, remove the rubber grommet. | When you unplug the refrigerator lines, always wear protective goggles! |
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 | 7. Release the fixing collar and disconnect a drive cable flap control coolant heat exchanger heater. Release the cable from the engine compartment bulkhead, so it can be removed complete with housing heater. |
8. Lower the steering column. And remove the dashboard (see chap. Body). Remove the strut reinforcement bar dashboard. | Before proceeding with recovery of the heat exchanger make sure that all locks are released. |
9. Remove the outdoor air duct with steel reinforcing rods, disconnect the corresponding wiring and then remove the processor board assembly (PCM).  | 10. Remove the air hose from the bottom of the casing of the heat exchanger heater. |
 | 11. At a corresponding complete vehicle assembly, remove the casing of the evaporator coil, or located on the passenger side air duct (model without K / V). |
 | 12. Give bolts / nuts heater assembly to the engine compartment bulkhead. Disconnect the control cables. |
13. Pull down the assembly of the heat exchanger and back - make sure that all the clips have been released. If necessary, slightly rotate the assembly in order to separate it from the upper arms.
14. Remove the heater assembly of the heat exchanger. 15. Assemble the heater and check that the operation of all the valves. Make the necessary corrections.
16. Install components made in the reverse order of their removal. Tighten the fasteners (screws / nuts) to the steering column support bracket with a force of 5 ÷ 18 Nm.
17. Fill the cooling system and bleed the air pockets (see chap. Adjustment and routine maintenance). Connect the battery and start the engine. Check the heating system components for signs of leaks and serviceability of functioning. Make recharge the air conditioning system. | 
