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Another blower not working post!
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Author Post
mattc4   
Sat Oct 28 2023, 11:37am
Member No: #61327
Joined: Oct 28 2023
Location: Kent
 Hi everyone. I'm not a C4 owner, but have a friend who is, and he has asked me to try and find out why his blower isn't working as I mess around with cars now and again. Anyway - from what I've read, it is probably either going to be a fuse, relay, resistor or motor problem. However, I haven't been able to find diagrams or photos of under bonnet fuse boxes that are the same as his and describe what I need to look at. The control panel seems to be working, as the A/C light works, but there is not blower on any speed. I have checked all the regular fuses in box glove box and under bonnet, including F11, which I believe is one of the culprits. Would anyone be able to supply a fuse and relay diagram and maybe a guide on how to bypass the relay with a fused wire (which I believe is a common fix for this issue)? His car is a 2010 C4 Coupe VTR, VIN VF7LA9HXCAY509477. Many thanks in advance for any advice! Matt
Ap0qalypto   
Sat Oct 28 2023, 11:46am
Member No: #52161
Joined: Sep 21 2018
Location: Republic of Serbia
 You check diagram for fuses here : - Click Here -

I would personally blame BSM fuse box, as C4/C4 picasso are prone to water in the engine bay
1 User said Thank You to Ap0qalypto for this Post :
 mattc4 (28 Oct 2023 : 11:49)
mattc4   
Sat Oct 28 2023, 11:51am
Member No: #61327
Joined: Oct 28 2023
Location: Kent
 Strangely, the under bonnet fuse box looks nothing like the one in those diagrams. The part number of his one is 9666700480. It looks like this one;
Ap0qalypto   
Sat Oct 28 2023, 05:29pm
Member No: #52161
Joined: Sep 21 2018
Location: Republic of Serbia
 According to this - Click Here -

F11, 40A is a fuse for blower. If you come to point to replace BSM, just search for R05, same as current one
1 User said Thank You to Ap0qalypto for this Post :
 bimmer49 (19 Oct 2024 : 10:27)
vexorg   
Mon Oct 30 2023, 03:46am
Member No: #48843
Joined: Jul 06 2017
Location: Scotland
 On the DS4 of similar age, the blower fuse is on the battery mounted part.
Nickbrown123   
Sun Feb 11 2024, 01:52am
Member No: #61140
Joined: Sep 03 2023
Location: Zagreb, Croatia
Ap0qalypto wrote ...

According to this - Click Here -

F11, 40A is a fuse for blower. https://piktid.com/superid-ai-photo-enhancer/ If you come to point to replace BSM, just search for R05, same as current one https://kobilabs.com/revit/
Thanks for the heads up!
1 User said Thank You to Nickbrown123 for this Post :
 Ap0qalypto (11 Feb 2024 : 03:46)
bimmer49   
Sat Oct 19 2024, 10:29am
Member No: #60002
Joined: Aug 15 2022
Location: Malaga
 But it dont tell you that in the C4 handbook! FFS!
vexorg   
Mon Oct 21 2024, 07:42am
Member No: #48843
Joined: Jul 06 2017
Location: Scotland
 Nope, it's quite annoying that you need the citroen technical CD to find it.
 

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