I have the heater and AC box under the dash completely torn apart and restoring (rebuilding ) everything before installing it on the car again.
Should I replace the expansion Valve on the evaporator with one from W&N ? Or are there better alternatives ?
https://www.wallothnesch.com/en/heizung-klimaanlage/bmw-2-5-cs-3-0-csl-e9/katalogbild-64-15.html
Cheers
Tony P.
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