Login   
C6owners :: Forums :: C6 Support :: The Garage

Body. not cosmetic, rust on a C6 - common? And fixes?

Home   Forum Rules    Forum Help  Conversion Tools
   
Please Register to enjoy additional Member Benefits
Author Post
RichardKC6   
Mon Jun 17 2024, 09:27am
Joined: Feb 11 2010
Member No: #49
Location: Derbyshire
I've yet to properly get under my C6, but while checking some undertray parts and the inevitable crushed jacking points, I found the lip of the sill where the plastic trim is screwed in is rusty. I don't mean 'brown crud', I mean 'chunks breaking off when I get the dirt and mud out of the curved channel there.

Because it's within the sort of window where factory sills may still be available (if not cheap) and also while it's just a thin edge holding trim, rather than structural yet, I might get this fixed. Or I might clean the area, rust-treat and cover it in black waxoyl.

But has anyone encountered this before? Any tips on sorting it? Is it common for a C6's sills to rust? I though PSA had sorted their rustproofing and body quality, but I guess the abused jacking points and possibly a life near seaside/salted road areas has done the inevitable.
C6Dave   
Mon Jun 17 2024, 05:14pm

Joined: Oct 01 2009
Member No: #1
Location: Northumberland
I had the jacking points on my last C6 straightened using 'induction' heating then treated them with Dynax and only used special 'jacking' blocks as described in the forum thereafter.

It's the numpties using 2 post lifts, not positioning the arms during tyre changes etc. correctly that cause the problems.....
Website
MGmike   
Mon Jun 17 2024, 06:56pm

Joined: May 21 2017
Member No: #3151
Location: South Queensferry
Thankfully the only real issue (so far) is the area you mention. Although I suspect inner sills either side of the tank will be a problem area going forward.

Being in salty Scotland, I've repaired a few cars now. The design of the sill with a single thickness lip is always going to be the first to go. It's not too hard to repair with a simple 25mm wide strip of steel welded at the bottom corner of the sill. the biggest problem is getting the sill covers off without breaking the NLA clips!






RichardKC6   
Tue Jun 18 2024, 08:30am
Joined: Feb 11 2010
Member No: #49
Location: Derbyshire
Wow, that's got well settled in! Definitely worth me taking the covers off and cleaning the area properly, I think - I don't know anyone who welds down here and it's a skill I've yet to attempt (I don't even know if I can or can't but I'm so bad at soldering or plastering I suspect welding is the same issue).

If my jacking points aren't too rusty I'll look into the induction heating - suspect that might be how to fix the crushed forward footwell box section as well. I'd have been raging if it was done to my new C6, at least with this one I have to tell myself to just enjoy the leather and 'waft' for pennies essentially.

Don't know how to 'tag' someone - forgot my shortcodes - but MGMike, if you're used to welding these up you may have a booking; my family is Borders and Edinburgh so I could bring the beast up, if iit behaves long enough to be worth fixing :D And of COURSE the clips are NLA, £&*(ing PSA/Stellantis. It was always the same, CX, XM... at least we have 3D printing now. C6 NLA was one of my shortlisted comedy C6 plates but I figured only committed Citroenists would get it...
MGmike   
Tue Jun 18 2024, 12:40pm

Joined: May 21 2017
Member No: #3151
Location: South Queensferry
Richard, with a nick name of MGmike I’m used to welding everything

My workshop is Near East Calder so not far from your family. Hit me with a PM if you want a slot.

And C6 NLA would be perfect
 

Jump:     Back to top

User Colour Key:
Head Administrator, Administrator, C6 owner, Technical Expert, C6 Premier Discount Club