Help with A/C

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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Posts: 4
Joined: Sat Jun 02, 2018 10:08 pm

Help with A/C

Post by puggy1 » Sun Jun 03, 2018 11:28 am

My 2.2 Hdi Executive Estate A/C always worked uses all year round.About 5 months ago it stopped working from one day to the next.At the moment when I turn it on the cooling fan runs but the the compressor pump clutch is not engaging after the engine runs for a few minutes the A/C pipes get cold, I have checked the pump it turns OK I have checked the plug on the wiring to the pump. What turns on the pump is it the BSI I have seen the post about the relay change. Any help appreciated. PS I have had to register again as I could not reset my password .

2.0 16v
Posts: 153
Joined: Sun Aug 24, 2014 12:18 pm
Location: Netherlands

Re: Help with A/C

Post by frog » Mon Jun 04, 2018 9:09 am

Have you checked the refrigerant level/pressure? I seem to remember that the BSI will not engage the clutch of the compressor if the refrigerant level/pressure is too low.
Current "fleet":
2003 406 Estate 2.0HDi 110 - 7 seater
2001 Citroen Saxo 1.6i 8v 100

Previously owned:
2000 406 Sedan 2.0 HDi 90
2000 406 Coupé 2.0i 16v 138 - Riviera Blue

PP2000 user, can help with faults / diagnostics in the Netherlands.

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