The Dispatch | Expert | Scudo Hub

Motoguito

Member

Registered: 2025-07-21

Posts: 5

Mk2 Scudo: Where is the AC clutch relay?

Hello, I have a 2007 Mk2 Fiat Scudo.

I am looking for the AC clutch relay. The under bonnet fuse box seems to have a second layer under the top layer of fuses, I can see some relays in there but it looks like a mission to split the fuse box, it's doesn't look like it was designed as a service access. Am I looking in the wrong place? Are the relays in the cabin fuse box passenger side? That's also difficult to access coz they are side on and I can't see what's in there!

I've had the AC re-gassed but then it still wasn't working and I realised the AC clutch isn't spinning. So I want to test if the AC relay's gone before splashing out on a new AC clutch.

Any pointers would be really helpful.  Many thanks!!

tee_cee

Member

Registered: 2016-03-18

Posts: 633

Re: Mk2 Scudo: Where is the AC clutch relay?

Hello, I have a 2007 Mk2 Fiat Scudo.

I am looking for the AC clutch relay. The under bonnet fuse box seems to have a second layer under the top layer of fuses, I can see some relays in there but it looks like a mission to split the fuse box, it's doesn't look like it was designed as a service access. Am I looking in the wrong place? Are the relays in the cabin fuse box passenger side? That's also difficult to access coz they are side on and I can't see what's in there!

I've had the AC re-gassed but then it still wasn't working and I realised the AC clutch isn't spinning. So I want to test if the AC relay's gone before splashing out on a new AC clutch.

Any pointers would be really helpful.  Many thanks!!

The relays are not user serviceable - everything is soldered in, you have to replace the whole unit.

Motoguito

Member

Registered: 2025-07-21

Posts: 5

Re: Mk2 Scudo: Where is the AC clutch relay?

Thank you very much for the reply. Oh man, that is annoying. I wanted to test the relay before buying a new AC clutch... Oh well, Maybe it's possible to remove the relay with a soldering iron to test it?

tee_cee

Member

Registered: 2016-03-18

Posts: 633

Re: Mk2 Scudo: Where is the AC clutch relay?

Thank you very much for the reply. Oh man, that is annoying. I wanted to test the relay before buying a new AC clutch... Oh well, Maybe it's possible to remove the relay with a soldering iron to test it?

I did see a guy on youtube bypass a relay with an external one.
https://www.youtube.com/watch?v=43vBiWbXM2s

Motoguito

Member

Registered: 2025-07-21

Posts: 5

Re: Mk2 Scudo: Where is the AC clutch relay?

Thank you that is really helpful, I hadn't been able to find a video or photos of what was inside the fuse box. For now I've ordered an AC clutch to swap over, that might fix it if the relay isn't buggered.

RegW

Member

From: Bristol

Registered: 2024-04-21

Posts: 364

Re: Mk2 Scudo: Where is the AC clutch relay?

Don't know if its any help but my 2006 2.0HDI has AC and only two wires going to the aircon compressor
One grey ( B079) which carries power from the relay
One green/yellow (M8020) to ground.
According to the diagram,  I could bypass the relay by putting 12v on the Grey cable and see if the
electromagnetic clutch operates, or at least check for a voltage
HTH

Incidentally, a faulty pressure switch may prevent the relay powering up the  compressor clutch
I had happen on my old Galaxy and the AC guys said it was often that and when changed, it was fine.

Last edited by RegW (2025-07-28 12:23:37)

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When all else fails, RTFM  - 2006 Expert 2.0 HDI/110

Motoguito

Member

Registered: 2025-07-21

Posts: 5

Re: Mk2 Scudo: Where is the AC clutch relay?

Thanks Reg, that's good thinking, I can check the voltage off the AC clutch connecting wire (before I unwrap the new AC clutch). If there is no power through the cable it must be the relay. Yeah, I have replaced the pressure switch, that was my first thought, the pressure switch may have a fault, but no joy.  Cheers for your help. 

RegW

Member

From: Bristol

Registered: 2024-04-21

Posts: 364

Re: Mk2 Scudo: Where is the AC clutch relay?

Assuming your system is the same as mine, When you check for voltage on the supply wire I suggest you also check
ground continuity on the other, as with no or a bad ground connection, it wont operate.

Last edited by RegW (2025-07-28 13:21:09)

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When all else fails, RTFM  - 2006 Expert 2.0 HDI/110

Motoguito

Member

Registered: 2025-07-21

Posts: 5

Re: Mk2 Scudo: Where is the AC clutch relay?

Will do Reg, thanks for the tip. I am learning as I'm going!