BMW 64119190595 Heating Element With Double Pipe

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A/C Switch, Begin by disconnecting the negative battery cable. Using a plastic trim tool, pry the A/C switch from the instrument panel, releasing the clip on each side. As the switch is pulled out, remember the positions of the electrical connectors and disconnect them. Unclip the trim piece from the A/C switch. Installation is the reverse of removal. If a new A/C switch is being used, it should be programmed using BMW test equipment at a BMW dealer or a specialized technician.Heater Assembly: Firstly, have the air conditioning refrigerant discharged and recovered. At the rear of the engine compartment, remove the cabin air filter cover mounting bolts, cover, and slide the filter from its housing. Remove both the left and right-hand plastic covers behind the strut tower in the engine compartment and unclip any attached wiring harness. Pull the cable guide from the cabin air filter lower housing and remove the housing. For models with strut tower supports, remove the plastic cap from the center of the cowl trim panel, take out the center bolt, and remove the outer end bolts of the support, ensuring the grommets stay in place. For all models, detach the refrigerant lines from the expansion valve at the firewall, and then remove the valve and the plate behind it. The complete instrument panel should be removed next. After that, remove the cap from the firewall and the bolt beneath it. Unclip the footwell air ducts from the heater assembly. Clamp the heater hoses close to the firewall or drain the cooling system. Disconnect the heater hoses at the firewall and then remove the fasteners securing the heater assembly near the coolant hose connections. Make a note of the positioning and routing of all wiring harnesses/cable ducts from the instrument panel crossmember before removing them. With assistance, remove the instrument panel crossmember. Be cautious as the crossmember has sharp edges, so wearing gloves is advisable. Remove the heater assembly from the passenger side and ensure the evaporator drain grommet in the floor is clear. Installation is the reverse of removal, but remember to tighten all fasteners, replace all seals and gaskets, recharge the refrigerant, and fill the cooling system.