Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Tell us your ongoing tales and experiences with your French car here. Post pictures of your car here as well.
User avatar
moizeau
Donor 2024
Posts: 1754
Joined: 12 Jan 2015, 17:08
x 373

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by moizeau »

Although those terminals really need a clean I would confirm the starter and starter solenoid aren't at fault. As Richard mentioned, bridge the ballery feed on the solenoid to the starter feed on the solenoid with a screwdriver or long nose pliers thus bypassing the solenoid. If it spins bridge the same battery feed to the 'ignition' feed on the solenoid. If it spins the fault is upstream.
Pete
Notice the BX is still top the list but sadly gone
RichardW
Forum Treasurer
Posts: 11989
Joined: 07 Aug 2002, 17:12
x 1318

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by RichardW »

I think the OEM BPGA comes with a couple of fuses missing. If you're going to buy a Chinese knockoffs off, you might as well get it direct from AliExpress and not pay the middle man!
Richard W
User avatar
CitroJim
A very naughty boy
Posts: 53147
Joined: 30 Apr 2005, 23:33
x 7377

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by CitroJim »

I'd love to have a look at a duff one and try to see what goes wrong in them...
Jim

Runner, cyclist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
User avatar
CitroJim
A very naughty boy
Posts: 53147
Joined: 30 Apr 2005, 23:33
x 7377

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by CitroJim »

The last post in this thread may be useful Matt..

viewtopic.php?t=82017
Jim

Runner, cyclist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
User avatar
Huskyxantia
(Donor 2025)
Posts: 2632
Joined: 30 Jul 2018, 22:11
x 555

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by Huskyxantia »

How's it going Matt ? I've just read this this Morning, hope you get the result you well deserve 👍
Husky. :? Thinking outside of the box is better than sitting in a dark one.
:-D
User avatar
MattBLancs
Donor 2024
Posts: 4054
Joined: 25 Apr 2022, 09:03
x 1839

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

moizeau wrote: 06 Jun 2025, 06:44 Although those terminals really need a clean I would confirm the starter and starter solenoid aren't at fault. As Richard mentioned, bridge the ballery feed on the solenoid to the starter feed on the solenoid with a screwdriver or long nose pliers thus bypassing the solenoid. If it spins bridge the same battery feed to the 'ignition' feed on the solenoid. If it spins the fault is upstream.
Yes, agree need a clean (but think unlikely the issue itself - more of need to spend the time cleaning them up when doing the swap)

Given more time, agree I'd be better testing starter properly.
RichardW wrote: 06 Jun 2025, 08:03 I think the OEM BPGA comes with a couple of fuses missing. If you're going to buy a Chinese knockoffs off, you might as well get it direct from AliExpress and not pay the middle man!
Agree, cheapest source of cheapest tat not likely any worse than buying the same thing at a more inflated price.

I've never used AliExpress (nor the new "Temu" thing either) but think delivery times are a bit longer??

As I could do with the car functional ASAP (i.e. it should be the substitute for a 37 mile each way walk to the office on Tuesday) I've bitten the bullet and ordered a new BPGA off eBay.

This one:
https://ebay.us/m/k4lb4m
Listed now at £170 but was £155 when I hit buy it now!?

It should arrive Monday - gone for the "collection from your local convenience store".

As should I, as with typical timing on the issue, as of this morning we're the other side of the country on a little holiday. So the Grey 308 has been our transport instead :)
Last edited by MattBLancs on 06 Jun 2025, 19:00, edited 2 times in total.
User avatar
MattBLancs
Donor 2024
Posts: 4054
Joined: 25 Apr 2022, 09:03
x 1839

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

CitroJim wrote: 06 Jun 2025, 09:23 I'd love to have a look at a duff one and try to see what goes wrong in them...
Likewise, is on the cards once I've got the car going again,
CitroJim wrote: 06 Jun 2025, 09:25 The last post in this thread may be useful Matt..

viewtopic.php?t=82017
Interesting, thank you. At present two failure modes have been raised:
- the relay as per that thread.
- the "link through contact" mentioned in the other thread above.

Searching online, some of the results appear to be just the relay rather than complete BPGA assembly.
Eg
https://www.aliexpress.com/item/1005008405017741.html
(£50, AliExpress, just relay)
User avatar
MattBLancs
Donor 2024
Posts: 4054
Joined: 25 Apr 2022, 09:03
x 1839

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

Just done an "image search" on the AliExpress subcomponent, maybe I should have chucked my money at one of these instead:
https://ebay.us/m/f4kcAZ

Second hand, £37+£9p&p

Or

https://ebay.us/m/qzUDUW
£44.99 earlier type but appears to have the same subcomponent????
User avatar
MattBLancs
Donor 2024
Posts: 4054
Joined: 25 Apr 2022, 09:03
x 1839

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

And searching the same number (as listed on the first eBay link to the subcomponent above) there's an AliExpress earlier BPGA that is so cheap as to wonder if it is just the plastic lid!?

https://www.aliexpress.com/item/1005005 ... d_source=1
£9!

And the subcomponent:
https://www.aliexpress.com/item/1005008 ... OIQAvD_BwE
£34.19
User avatar
CitroJim
A very naughty boy
Posts: 53147
Joined: 30 Apr 2005, 23:33
x 7377

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by CitroJim »

Watching all of this with great interest Matt :)
Jim

Runner, cyclist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
User avatar
MattBLancs
Donor 2024
Posts: 4054
Joined: 25 Apr 2022, 09:03
x 1839

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

Brief updates will add more words later

New item collected, a break in the weather so see if I can get this on the go...
Genuine parts!
Genuine parts!
And it says Valeo on the case of the unit.

Meter on continuity old fuses in the old unit appear to be intact.

Here comes the rain....
User avatar
MattBLancs
Donor 2024
Posts: 4054
Joined: 25 Apr 2022, 09:03
x 1839

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

Rain isn't giving up yet so a few more words whilst I cross my fingers it'll stop.

Battery on charge was showing 12.2 volts (not atrociously flat but worth topping up) also removed it from the car to get more room.

All the little M6 bolts removed are fairly crusty so into the phosphoric acid. When I get a break in the weather I will loosen off some of the terminals clean up each one with wire brush or wire wool, then back on the old unit loosely so as to keep the order/arrangement.

Relay within the centre of the unit appears to have two terminals that don't do anything!

Starter motor has a remanufactured sticker. Service history consists only numerous dealer stamps so no clue when that motor was changed. As far as I can see there is no starter fuse: what I think is the heavy starter cable comes into the BPGA and doesn't appear to be fused.
User avatar
MattBLancs
Donor 2024
Posts: 4054
Joined: 25 Apr 2022, 09:03
x 1839

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

Images of old BPGA
1
1
2
2
3
3
And starter motor sticker
Starter sticker
Starter sticker
Had a go to hotwire it but clearly not enough of my youth was "misspent" :rofl2:
No action but equally not too convinced I was doing the right action.
Tried wire between big starter motor cable and the (only visible) little pin on the motor.
Also tried battery positive to same small terminal.

Expected clunk of solenoid but nothing.

Also no significant spark when making connection (at battery end) - expected fairly heavy jolt as making connection. Nope.

Used a fairly low cross section piece of mains cable (to hopefully give some level of crude fuse!) but all in all undramatic.

Leading me to give up hopes of new joyriding career opportunity :wink:
User avatar
MattBLancs
Donor 2024
Posts: 4054
Joined: 25 Apr 2022, 09:03
x 1839

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by MattBLancs »

With another starter motor (formerly of C5, ruled out as rubbish, but wasn't!) different battery and some fresh motivation: I confirm that I should indeed have heard the solenoid clicking hot wiring as I was. Ie I was doing it correctly!!

Which suggests dead starter motor on the blue 308.

Oh look it's raining again. Bugger
User avatar
CitroJim
A very naughty boy
Posts: 53147
Joined: 30 Apr 2005, 23:33
x 7377

Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by CitroJim »

Genuine Chinese Matt :? :)

Fingers crossed it does the job [-o<
Jim

Runner, cyclist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...