Infiniti M30 heater blower amplifier adapter pattern
Description
This is a pattern for using the Q45 style heater blower amplifier in the M30 coupe with the digital AC control panel. What I'm calling Q45 style is not specific to Infiniti Q45 but is also used in other Nissan models. The heater blower amplifier is often referred to as heater blower resistor. In Analog AC/heater systems the motor speed is controlled by metal coil resistors. The Q45 style amplifier body is narrower than the opening in the M30 mounting assembly and needs an adapter to fill in the opening. I recommend that if you print this you use it as a pattern to cut out sheet metal. I have no information about how hot the heater blower amplifier module gets so I cannot recommend using plastic as the adapter. That being said, the module comes with foam style gasket that certainly cannot take high heat. I bought a new ISUMO BMR574 on EBAY for this project. Many will get a used one from a car recycle yard. The Q45 module needs a corner sawed or filed off and one new hole drilled to match the M30 pattern. Modification details can be seen in the Nissan Leopard/Infiniti M30 Owners Facebook pages. I changed the 1mm pattern to be a better fit and removed the 2mm. I printed in PLA to check fit and it is snug but fits around the heatsink and fits in the corners and length. Your printer experience may be different as home use printers are not universally calibrated.
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