C5 X7 Steering Rack - Again!

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Re: C5 X7 Steering Rack - Again!

Post by wheeler » 10 May 2018, 09:28

Yes, the number 2 LP pipe, apparently it corrodes. The guy reckons in almost every X7 steering rack he replaces the LP pipe corrodes where it enters the rack, if you don't replace it then it wont be long before it leaks from the pipe/seal area.
His re con racks are £295 + V & he says he can do a brand new one for £500 + V. On the recon ones the pinion shafts are totally re plated ?
In my case even though the pinion valve is extremely rusted the pinion valve seal is definitely not leaking, It's only me who has inspected it & its completely dry. Ive had the big grommet out & inspected it all round with a mirror & camera.
I will however replace the rack & pipe together as its only a matter of time before the pinon does start to leak.

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Re: C5 X7 Steering Rack - Again!

Post by GiveMeABreak » 10 May 2018, 11:56

Thanks for that info - I'm going down to see my indy later today for a chat - as obviously we need to confirm the exact location of the leak..

So all the HNBR O rings I can find are just huge assorted boxes from the Far East. In the Ebay ad that Robin linked to earlier, on the full description the seller says:
Please note

For all Citroen C5 owners, I am asked numerous times if these fit the C5.

According to the Citroen dealer parts ID system the power steering rack seals are not sold individually only with the pipes, but a customer bought a set of these seals quite a while ago to try and sent me a message back saying they fitted no problem, I cannot advise they definitely will fit but I have told this to many buyers who have since bought these seals and have had no come backs.

Petrol, Diesel and Hdi Diesel Variants so please check before purchase

Peugeot Citroen part number 406631 & 400632
There isn't anything to say these are HNBR - but the quoted sizes for the above say:
1 - 7.6 x 1.8mm
1 - 8.7 x 1.8mm

So should I be searching for this size in green HNBR?

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Re: C5 X7 Steering Rack - Again!

Post by bobins » 10 May 2018, 12:43

The ones in the eBay ad are probably silicon and are fine with LDS, HNBR are just the next step up the quality ladder. There's nothing actually wrong with what the ones in the eBay ad are made from.
When I measured my old O rings from my old rack they were near enough the same dimensions as makes no difference as the eBay ones.

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Re: C5 X7 Steering Rack - Again!

Post by GiveMeABreak » 10 May 2018, 12:51

Great, thanks - I'll be off later to see what they say.

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Re: C5 X7 Steering Rack - Again!

Post by GiveMeABreak » 10 May 2018, 15:15

So after the initial cardiac, and just back from the garage - we couldn't see anything from the pinion itself after cleaning up the area. So started her up and only then did we see a very small bubble of fluid emerging from the LP pipe seal (as far as we could see) - as it was forming from the left of the seal and then running down - so the lower of the green seals in the picture, arrowed:
X7-LP-Pipe-Seal-C.png
X7-LP-Pipe-Seal.png
So I'm going to get both a set of the older C5 seals as Robin liinked to and also a box of green Chinese specials (HNBR I hope) and they'll try and replace the seal first - as the LP pipe itself looks in good nick and no rust from the outside at all.

So in for a penny, in for a pound, I've decided to get the
  • LP Pipe seal replaced and see how we go with that - (pending a replacement LP Pipe / Rack later if it doesn't work)
  • Timing belt and water pump done (Kit from Citroen is £158 for pulleys, pump, gasket and belt) as that's will be due to be replaced on age-related basis next year anyway.
  • The offside Anti Roll Bar Link (MOT Advisory)
  • The Diesel additive replenished (as that's probably due for a top up)
  • Treat the rear suspension pipes and hydraulic rigidity regulator with some protective coating

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Re: C5 X7 Steering Rack - Again!

Post by EDC5 » 10 May 2018, 17:36

That's a relief, the seal shouldn't be too difficult to replace surely.

Is it not advisable to have both ARB links replaced together?

Does that mean you've actually managed to indentify what diesel additive you need then :lol: I think I got confused over the various different fluids.

And that's a good idea re the coating. I've smeared the thickest grease I could find over all of the piping and spheres at the back.

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Re: C5 X7 Steering Rack - Again!

Post by bobins » 10 May 2018, 17:55

Make sure it's an extremely good quality ARB drop link - ideally Genuine Parts - as the cheap ones are made of cheese. They're not too difficult to do, so I think I'd agree with Elis and get them both done at the same time as you're having the work done at a garage. I tend to replace just the one that's worn out on mine, but as I do the work myself it's no bother to do. I tend to find that once one's worn and clonking the other isn't far behind.
Last edited by bobins on 10 May 2018, 18:10, edited 1 time in total.

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Re: C5 X7 Steering Rack - Again!

Post by GiveMeABreak » 10 May 2018, 18:02

It's strange that the same ARB has been picked up 3 MOTs in a row and still fine - it isn't actually noisy, with just a small amount of play - they checked the other one and it is solid as a rock - so I'll leave that one, despite the advice as yes, I would normally get both done - but I'd rather focus on the other issues at this stage pending major surgery if the seal doesn't do it [-o<

Elis - Here's my 'simplified' guide on the dreaded Eolys: Your RPO is 11656 so you should be with the Green Click Fit Unions and on the Eolys 176 the same as me :-D

On that matter without going too off topic - I just had a quote for the 3 Lt kit for Eolys 176 from Citroen - £124.16 inclusive, which includes the filling kit. I've just got to try and determine how much I need of the stuff - I'll see what Diagbox thinks tomorrow :roll:

So here is a guide I've put together:
Click Fit ColourRPODateEOLYS
WhiteTo 9492To 04/11/2002EOLYS DPX42
GREEN9493 to 1210905/11/2002 to 03/01/2010EOLYS 176
GREEN12110 to 1216504/01/2010 to 28/02/2010Infineum F7995
BLUE12166 on01/03/2010 onEOLYS Powerflex
So only the GREEN fluid types can be mixed when topping up - you must never mix the DPX42 or the EOLYS Poweflex with any other additive fluid.

Click Fit Connector
Click Fit Green.PNG
Click Fit Green.PNG (29.25 KiB) Viewed 349 times
Click Fit Blue.PNG
Click Fit Blue.PNG (32.28 KiB) Viewed 349 times
Green Click FitBlue Click Fit

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Re: C5 X7 Steering Rack - Again!

Post by bobins » 10 May 2018, 18:14

Here's one for you to ponder on, Marc. Which of Citroen's DPF fluids is this genuine Volvo/Ford one the same as ? It's made in France and is an actual EOLYS kit.... and is considerably cheaper than the genuine Citroen part :-D
https://www.ebay.co.uk/itm/Genuine-Volv ... 2035194976

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Re: C5 X7 Steering Rack - Again!

Post by GiveMeABreak » 10 May 2018, 18:27

That kit is only 1.5 Litres Robin (once I engaged the electron microscope)! so with postage of £8.00, that is £128 for double, so mine would be £4.15 cheaper for the 3Lt :-D

Now, as to whether it is the same.... Given that there are 3 types of additive in my table alone, I wouldn't like to hazard a guess as to what flavour they are on over at Volvo - probably goes well with Swedish meatballs whatever it is.

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Re: C5 X7 Steering Rack - Again!

Post by bobins » 10 May 2018, 18:34

It could suit me though as I only sip my DPF fluid ! :) I always fill the tank from almost empty and the HUUUGE majority of my driving is long range motorway work. Last time I checked my DPF fluid was about half full and the car has done over 80k.

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Re: C5 X7 Steering Rack - Again!

Post by white exec » 10 May 2018, 18:39

If you need O-rings, go to polymax.co.uk - huge range of sizes and material types, all accurately dimensioned.
They're in Hampshire. Can highly recommend them.

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Re: C5 X7 Steering Rack - Again!

Post by GiveMeABreak » 10 May 2018, 18:43

bobins wrote:
10 May 2018, 18:34
It could suit me though as I only sip my DPF fluid ! :) I always fill the tank from almost empty and the HUUUGE majority of my driving is long range motorway work. Last time I checked my DPF fluid was about half full and the car has done over 80k.

That's worth knowing, my journeys now tend to be 40 mile round trips without any traffic lights - so will probably use more than you - but I'm hoping Mr Diagbox is going to play nice and give me an idea of fluid remaining.

I've ordered those seals you linked to - but I've yet to find any others of the same size - even in those green HNBC Chinese special kits - every flipping size but the one I want as usual - so if you have any links, I'd like to have a another set of the same if these are the right size, but of the type you suggested.
1 - 7.6 x 1.8mm
1 - 8.7 x 1.8mm

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Re: C5 X7 Steering Rack - Again!

Post by GiveMeABreak » 10 May 2018, 18:44

white exec wrote:
10 May 2018, 18:39
If you need O-rings, go to polymax.co.uk - huge range of sizes and material types, all accurately dimensioned.
They're in Hampshire. Can highly recommend them.
Chris, thanks for that - I will have a squiz now. :wink:

I've just fired off an email to them.

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Re: C5 X7 Steering Rack - Again!

Post by white exec » 10 May 2018, 19:10

No problem, Marc. You should be able to find the size you want in their on-line listing. Viton is LHM etc proof, and we've been using these on XM hydraulics for a while now.