A/C Pressure Switches

[702pjc]

So It looks like my E30 has two pressure switches on the dryer, one for high and one for low.

The E30 R134a retrofit guide says that I need to splice a connector to enable use of the new high/low pressure sensor.

Yet, this is not made note of anywhere on the conversion DIY here. Is this a necessary step? Can I get that plug end at the dealer (P/N
1 378 400)?

[jlevie]

When using the current combined hi/low pressure switch on a car that originally came with dual pressure switches, modification of the car's wiring is required.

[702pjc]

Thanks for the quick response. Can I just splice the old connector onto the new pressure switch since I don't have the female plug that matches?

Edit:

For anyone wondering, don't forget to order 2 of part #61 13 0 007 442 for that plug terminal.