Installing Heating/Fresh Air Unit

Information 

The seals on the refrigerant connections must be checked for damage. If in doubt, replace the seals.

1. Pull the cut-out in the insulating mat on the passenger's side -1-  over the air intake tubes -2-  from the heating/fresh-air unit.
   Fig 1: Pulling Insulating Mat Over Air Intake Tubes

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2. Install heating/fresh-air unit.

   Information 

   Mounting pegs, guides and rubber sleeves must be treated with sliding compound before installing the heating/fresh air unit.

   1. 2.1. Insert mounting pegs of the heating/fresh-air unit into the guides -1-  .
   2. 2.2. Insert the connection pieces on the heating/fresh-air unit for the cooling and heating media into the rubber sleeves -2-  in the firewall cover.
      Fig 2: Fitting Heating/Fresh-Air Unit In Firewall

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3. Check that the rubber sleeves -1-  engage in the mounting grooves on the connection pieces -2-  of the cooling and heating media. If not, re-adjust them.
   Fig 3: Fitting Rubber Sleeves Into Groove On Connection Pieces

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4. Pull out the rubber straps -1-  behind the heating/fresh air unit and engage them in the anchoring device -2-  for the heating/fresh-air unit -arrow-  .
   Fig 4: Hooking In Rubber Straps

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5. Plug in electric plug connection -1-  for the heating/fresh-air unit until it engages securely.
   Fig 5: Plugging In Connector

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6. Plug in electric plug connection for servo motors -1-  until it engages securely.
   Fig 6: Plugging In Connector For Servo Motors

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7. Press connections for condensed water drain tubes -1-  at the left and right into the fittings on the body tunnel -arrow-  .
   Fig 7: Installing Condensed Water Drain Tubes

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8. Secure refrigerant hoses at the expansion valve → Installing Expansion Valve .
9. Secure heat exchanger return hose → 803219 REMOVING AND INSTALLING HEAT EXCHANGER RETURN HOSE .
10. Secure heat exchanger supply hose → Installing Heat Exchanger Supply Hose .