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

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CitroJim wrote: 18 Jan 2026, 05:21 Well there! I never knew of plastic sumps... Every day's a school day and all that ;) At least the usual garage monkey can't overtighten that bayonet sump plug ;)

On the cartridge-type filter on my Picasso van I always use the torque wrench on it and never is it a problem. Those not properly tightened have been a worrying fight in the past. And with canister types I do as you do Matt. Spin on - spin off strictly by hand :)
Yes the big 27mm nut of the DV6 cartridge filter housing I know well. I don't torque wrench that one but do it "enough" and it's problem free

As my van has the 'innie' sump plug I remain of the opinion I get more oil out with the sucker than I do if I drain in the traditional way...
I know that "innie" well too, highly recommend a "conversion" to flush / outie :)
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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Wynn's additive says
500 ml bottle treats 45 to 75 liters of Adblue
So (500 / 45 ) x 20 = 222 ml for the new bottle of Adblue
1768740184066692503560988234639.jpg
So 250ml poured into this new container. Thought treating the whole lot better than doing the sums every time I top up.

Blue 308 SW adblue tank refilled: 3.5 fluid ounces (as seemingly the long spout is dual marked and I was filling up to the imperial lines!)
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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As I've got through my 20 litres of Mannol engine oil, I've been hunting a fresh stock.

This is remarkably cheap, so I have snapped it up:
https://ebay.us/m/lQDyEY
£43.70 for 20 litres!
£43.70 for 20 litres!
Spec reads ok as far as I can tell:
From eBay description
From eBay description
:)
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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Oh yes, one other future task added itself to the list:
IMG_20260118_121506240.jpg
Need to work out where this water is making its way inside!

This is the actual boot floor (on which the spare wheel, polystyrene spacer and tool kit sit - beneath the false floor (on which, err, buckets of soil ride to the tip! :-D ))
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CitroJim
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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MattBLancs wrote: 18 Jan 2026, 18:25 Oh yes, one other future task added itself to the list:
Cars are so much like kids and partners - they always keep us busy with something and often something unexpected :roll: :lol:
Jim

A bit of a Citroen AX fan...
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MattBLancs
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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Oh yes, always something appearing on the horizon! :)

Big bottle of oil arrived today:
Varsynth
Varsynth
Other news I've grabbed a couple (as 5% saving for bulk buying) of Borg and Beck brand engine air filters as had a 15% discount code (in addition to the 5% off) on eBay. Worked out £8.46 each delivered which is cheaper than Audodoc's Ridex own brand elements. Everywhere else (GSF, euro etc, about double that)

Might even arrive tomorrow so can get one swapped in over the weekend
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CitroJim
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by CitroJim »

Speaking of Borg and Beck, who one usually associates with clutches, supplying air filters, I was surprised the other day to find Febi-Bilstein make oil filters when I bought a small stock of them for the AX sisters...
Jim

A bit of a Citroen AX fan...
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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Yes I've noticed that too - brands seem to be "broader" nowadays!

Good example:
Good year, well known for their round black things filled with air,

Now make/sell
Spoiler: show
https://ebay.us/m/ebstda
LED lightbulbs, obviously!?!
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by PaulC5 »

Many brand names have been bought up as businesses go broke so maybe these equity groups use the name to suggest quality/historic brands to help sales. I do not know if this is the case for Good Year though.
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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First job today, was the usual:
Sunday, suspension sunk (short-term spring squashing)
Sunday, suspension sunk (short-term spring squashing)
Then looked to identify what brakes are actually fitted to the Blue 308 - as Autodoc suggests three different sizes for the front and two choices for the back!

A tip online suggested an excellent way of measuring disk diameter - use one of these:
Spoiler: show
Cunning clamp = caliper candidate
Cunning clamp = caliper candidate
Rear brake summary images:
Disk is pretty scored (surprised was not an MOT advisory) so might look to change them.
Pad thickness not bad at all, will likely not change these (unless I spot some as cheap as GSF lists: £5! But sadly a "good price but no stock anywhere" purely hypothetical bargain.
Attachments
A bleed nipple that doesn't look like it's moved in a LONG time
A bleed nipple that doesn't look like it's moved in a LONG time
Berk for scale
Berk for scale
Caliper label
Caliper label
Inner pad thickness (rear, right)
Inner pad thickness (rear, right)
Outer pad thickness (rear, tight)
Outer pad thickness (rear, tight)
Scored disk
Scored disk
Last edited by MattBLancs on 25 Jan 2026, 14:18, edited 1 time in total.
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Huskyxantia
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by Huskyxantia »

Just imagine turning up to do a car boot sale with that in the back , someone probably would by a couple of buckets of soil for there garden, when my drive was made bigger a few yrs back I was going to skip all the dirt , no need half the village took it ! Saved me some money 😆 I still go past several gardens and say there's my soil in that one , and that one!
Husky. :? Thinking outside of the box is better than sitting in a dark one.
:-D
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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 about take the disc off and flappy wheel them smooth , ive done it in the past
Husky. :? Thinking outside of the box is better than sitting in a dark one.
:-D
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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Huskyxantia wrote: 25 Jan 2026, 13:56 Just imagine turning up to do a car boot sale with that in the back , someone probably would by a couple of buckets of soil for there garden, when my drive was made bigger a few yrs back I was going to skip all the dirt , no need half the village took it ! Saved me some money 😆 I still go past several gardens and say there's my soil in that one , and that one!
Ha ha, that's great! I've offered previously the better of the soil (as some is pretty clay claggy stuff) on our local Facebook group but no takers. Well, about half a wheelbarrow of it went! :-D
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

Unread post by Huskyxantia »

At least some of it went to some use , looking at the brake pictures, The scoring ,i always thought was caused by grit , but I'm thinking now maybe an imperfection in the disc metal it self ?
Husky. :? Thinking outside of the box is better than sitting in a dark one.
:-D
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Re: Suspension sinks on Sundays! C5 X7 that works hard + 206 GTi HDi (and 406 Coupe and 306 HDi). - MattBLancs

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Huskyxantia wrote: 25 Jan 2026, 13:58 How about take the disc off and flappy wheel them smooth , ive done it in the past
Yes I might do, though Autodoc has a decent brand (valeo) pair of disks for £41.99:
Hey, check out VALEO Brake disc in the AUTODOC app https://m.autodoc.co.uk/valeo/22778242
Cheaper than even there own brand Ridex £21.99 per disk.

Given those prices, I might treat it to a new set.