940 SE L4-2320cc 2.3L SOHC Turbo VIN 87 B230FT (1991)
7. Disconnect vacuum lines from firewall.
8. Remove:
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plate washer and foam rubber seal at firewall penetration
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climate unit from firewall.
Inside car:
9. Remove heater and defroster ducts.
(Do not remove duct through steering column mounting.)
10. Disconnect following leads from climate unit:
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positive terminal strip
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connector for ambient temperature sensor, blower motor, power stage and control module (if applicable).