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Riding at the top of the travel at the front

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hunneric   
Fri Dec 11 2015, 05:41pm
Joined: Dec 11 2015
Member No: #2432
Location: London
I bought an 06 plate C6 a couple of months ago and, obviously, I love it.

When I bought it, there were a few niggles to sort out but far and away but replacement of the front bushes seemed far and away the most significant. However, having done them, the front end seems to be rising up far higher than it should (and not necessarily going down again when parked - which seems odd).

I feared that one or more of the spheres had collapsed but the ride is mostly smooth and accurate and it only clonks in dips, such as dropping over the down slope of a raised junction or sleeping policeman.

I have left it for a bit in the hope that the problem might be that the suspension needed to re-programme itself following the elimination of the (considerable) play in the bushes but it isn't going back to a normal ride height.

I have read that there are sensors at the front which may need adjusting following the replacement of the bushes and this represents my current theory as to what might be amiss.

Therefore:

Is this likely to be the problem? Or is there something else which is likely to be the culprit?
Any idea how much it would cost to get the adjustment done? Unless it's a really simple job, I'm not going to attempt it myself
Can anyone recommend a garage (ideally in south London) who might be expected to do a good job. (I've nothing against going back to the guy who did the bushes but I thought I might as well tap the collective wisdom of the site.

All thoughts gratefully received
Hattershaun   
Fri Dec 11 2015, 07:07pm
Joined: Dec 19 2010
Member No: #320
Location: Bedfordshire
It could be as simple as a gentle bend of the metal brackets that support the height sensors is all that's required. A 5 minute job to reposition them.
Checking and resetting height with the Lexia diagnostic machine would take longer.

B.L.Autos in Hertfordshire look after many C6, including mine, so a trundle there on a Saturday morning may be an option for you.
gmerry   
Sun Dec 13 2015, 12:14pm
Joined: Dec 11 2009
Member No: #21
Location: Scotland
Suspect that the bush job has been a bit clumsy.

Proper job might now be to replace the metal linkages (they will be tired and rusty with slop in the miniature ball joints) and then reprogram the heights.

Best to get a C6 (or C5) specialist if at all possible.

Regards
G
hunneric   
Sun Dec 27 2015, 12:37am
Joined: Dec 11 2015
Member No: #2432
Location: London
Thank you both for the helpful replies, it looks as though a proper reprogramming job will be the least that's required for a permanent fix but, in the meantime I'd like to have a go at adjusting those brackets. I think I have located them but I'm not sure in which direction I should be bending them, are there any fuller instructions available anywhere?

Also, I noticed that the suspension won't go all the way to to the up position. I'm assuming that this is either a lack of lds fluid (best case) or one or more collapsed spheres (pessimistic view). Might as well at least check the reservoir. Am I right in assuming that all I need to do to check the fluid is to switch on, let the suspension ask the way down, switch off, unscrew the cap, refill the reservoir to the indicated level and put the cap back on. There's no other special issues to watch out for...

Any thoughts, guidance or links much appreciated
Hattershaun   
Sun Dec 27 2015, 07:40pm
Joined: Dec 19 2010
Member No: #320
Location: Bedfordshire
Bending the brackets, if it's required, is best done by someone who's done it before and knows which way to bend and what the correct position is. Whilst I've watched it being done, afraid my knowledge is insufficient to guide you any further, sorry.
e3steve   
Sun Dec 27 2015, 10:17pm
Joined: Jan 21 2013
Member No: #1163
Location: Warsash, Hants & Palma de Mallorca, Spain
hunneric wrote ...
Might as well at least check the reservoir. Am I right in assuming that all I need to do to check the fluid is to switch on, let the suspension ask the way down, switch off, unscrew the cap, refill the reservoir to the indicated level and put the cap back on. There's no other special issues to watch out for...

Any thoughts, guidance or links much appreciated
Without Lexia (or a Snap-On 'Solus'):

Put the suspension in its lowest position, engine running. Wait for the on-screen "Low position" indication on the car's display then, with a strong light, observe the level of the fluid; it should be just visible below the in-built filter 'basket' in the reservoir.
DZR   
Sun Dec 27 2015, 11:58pm
Joined: May 19 2015
Member No: #2168
Location: Halmstad
e3steve wrote ...

Put the suspension in its lowest position, engine running. Wait for the on-screen "Low position" indication on the car's display then, with a strong light, observe the level of the fluid; it should be just visible below the in-built filter 'basket' in the reservoir.



Ehh, e3steve now I´m lost. Does lowering the car work or not?

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