Fuse allocation
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tractionbrise
- Posts: 4
- Joined: 04 Oct 2025, 10:00
Fuse allocation
I have owned my Spacetourer Bluehdi150 for about a year. When I purchased it, the dealer replaced the battery and what they called the "battery control module" - could this be the battery management unit and protection (BMUP)? The car is in daily use and has thrown a couple of warning lights which have usually gone out. Recently, the car has been left standing for a few days, after which it fails to start. The dash displays the message "Energy economy mode activated". The voltage at the battery was 8v! When shut down a parasitic drain can be measured at 0.30 Ah but I am struggling to pin this down further due to a lack of a fuse allocation table. I can find one on the internet for the interior fusebox (which is mostly behind a birds nest of wiring loom). There is a 3rd fusebox behind the interior fusebox which can only be accessed by a tiny French mechanic with an endoscope. But I cannot find a fuse table that matches my engine compartment fusebox.
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mickthemaverick
- Moderating Team
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Re: Fuse allocation
I think this site should help: https://fuse-box.info/citroen/citroen-s ... 2018-fuses 
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
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tractionbrise
- Posts: 4
- Joined: 04 Oct 2025, 10:00
Re: Fuse allocation
Thanks Mick. That should be the one.....but isn't sadly. Does anyone have any alternative engine compartment fuse allocation tables for a 2018 Spacetourer? Mine is quite high spec, dual zone air con, sat nav that tries to drive you to a citroen dealer every time you hit a speed bump, electric arse warmers etc. etc.
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xantia_v6
- Forum Admin Team
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Re: Fuse allocation
0.3A would not worry me too much when the car is 'awake', but it should be significantly lower when the car goes to sleep after a few minutes.
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tractionbrise
- Posts: 4
- Joined: 04 Oct 2025, 10:00
Re: Fuse allocation
0.3 Ah is after about 20 mins when everything has shut down.
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wheeler
- Posts: 7893
- Joined: 21 Sep 2002, 19:07
- x 1043
Re: Fuse allocation
Way to high then, shouldn't really be any more than 0.06A
Are you measuring this with all the doors & bonnet latched over & the vehicle locked?
If its a keyless model is the keys well away from the van?
Are you measuring this with all the doors & bonnet latched over & the vehicle locked?
If its a keyless model is the keys well away from the van?
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tractionbrise
- Posts: 4
- Joined: 04 Oct 2025, 10:00
Re: Fuse allocation
Yup, everything shut, keys in the house. Also, failure to start after 3 days standing points to a parasitic drain. Battery is only 1 year old.