Subfame/cross member corrosion

J

Jimbo095

New member
Hi all

Bought my car a few months back (and mostly loving it) with just 340 odd miles on the clock but it is an early 2016 car that was a static display car for JLR. So, it’s been for a health check and I had already spotted the well known corrosion underneath, local workshop manager has been great with other bits I wanted sorting but reckons they’ll refuse any treatment/replacement of the corroded parts. Tried to snapshot photos but would like people’s advice as to the severity of my corrosion (bearing in mind the ridiculously low miles) and if there is a treatment rather than replacement that JLR warranty will cover? Sure I’ve seen a waxoil treatment or similar done under warranty but tech says he’s not heard of it?..
 

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I had mine painted under warranty as part of my 1st service. Main jag dealer. I just asked. They obliged.
 
Yes.

The technician also took a video of underside of my car to point out remedial work, and to show that the rest of the car was OK (tyres, suspension, no oil leaks, etc). I don't have ramps to see for myself... so I'm trusting that video is actually of my car. ;)
 
Hi Jimbo, the under side of your car will look similar to many f types . It is easily resolved with a few hours of work (I did mine myself) using dynax s50. If the car is use daily all year round should be done once a year before winter sets in. I have attached photos of the results. Fez
 

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Fez said:
Hi Jimbo, the under side of your car will look similar to many f types . It is easily resolved with a few hours of work (I did mine myself) using dynax s50. If the car is use daily all year round should be done once a year before winter sets in. I have attached photos of the results. Fez
Click to expand...

Fez - what ramps are you using?

I'm after a set of ramps for mine for just such a job - you or anyone else got any recommendations?

I've seen ramps that are also jacks so you dont have to drive the car up on them - anyone using them?
 
Hi Daytona, see my post under title "Great 7 months time for bed" ramp details are there. The ramps are a little expense but easy to use and you just have to take care that front spoiler does not hit floor as the ramps can lift car 500mm off floor.
 
Fez said:
Hi Daytona, see my post under title "Great 7 months time for bed" ramp details are there. The ramps are a little expense but easy to use and you just have to take care that front spoiler does not hit floor as the ramps can lift car 500mm off floor.
Click to expand...

Thanks Fez - they look really good :)
 
Thanks all, much appreciated. Car is in for panel gaps Wednesday so will ask about it being treated/painted. Your call looks awesome Fez, that's something an incompetent like myself is quite happy to pay somebody to do!!! I'll have to ask around locally to see if anyone fancies the job.
 
Fez, is that the aerosol dynax you've used there rather than the jerrycan presumably liquid that would need brushing on?
 
Hi Jimbo, yes I used the aerosol dynax s50 from bilt hamber. You will need to clean down and remove any flakey paint first. Fez. Black AWD 400 sport....
 
Does anyone know if the cross members are easy to remove. Going by the pics it looks like a couple of screws???
 
Hi Chicb, the pictures of the sprayed sub frame are mine, it was all careful sprayed up in place. Not sure it is such a good idea to start removing parts.

Regards fez
 
Here's the underside of my 2014 3.0 S with 30k on the clock. Its quite alarming surface corrosion. I reckon its easily solved with some wire brush and spray, but shockingly bad on an 80K car. Having said that, I also have a 2013 Discovery 4, which is also shockingly rusty on its chassis. Good old quality build from JLR. :evil:

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Been under mine this week (2014 25k) and it was about the same as pictured, I’d already ordered the Dynax stuff so bit of wire brush and sprayed all bits I could get at whilst on ramps. Looks loads better now. Bit of peace of mind also.
 

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Stucat, all looking good will be interesting to monitor and see what it looks like in a year. Fez
 
i'm having the underside of mine corrected and treated my my local mechanic soon - i've a 2013 at 26,000 now so will share some pics when we get under it properly.
 
Since we're all sharing our photos, here is my 2013 (26k) convertible having some protection treatment at my local independent Jag workshop, as the main dealer said that it didn't need treating as it wasn't structural!! Hmm..

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Next on list is to have a moan at the main dealer about the leaking exhaust that they said was fine as well, just a bit of condensation!!
 
@Gareth.
Quite simply what you get with an all aluminum body and some iron bits bolted on : survival of the fittest...
The iron corrodes as its less 'noble' a metal as aluminum...
 
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