Brace corrosion
 

Jaguar has now responded to owners who do have the issues, Finally responding to customers complaining about corrosion appearing in the underbody brace areas of the F Types Jaguar admit this is down to insufficient zinc nickel plating on current components.

New specification parts are now available from Dealers ... note to Jaguar dealers in their own words
If any of the rear underbody braces are exhibiting red rust corrosion, then replace them with the new part numbers that are now available.

This is good news
Mine been a 2018 model , I wonder have I to get the new specification parts, if so it's a disgrace.

Full details are in the Jan 2019 Vol 35 no.1 Jaguar Enthusiast magazine

https://cimg3.ibsrv.net/gimg/www.jag...fc8e33dc7a.jpg
https://cimg2.ibsrv.net/gimg/www.jag...5362673954.jpg

It'd be nice if we knew the VIN at which the replacement parts were fitted.

So would this be retroactive?
Mine does show some rust on these parts

Thanks for sharing. Guess I'll have to take a closer look under my car then.
As Paul I wonder whether it would be retroactive even if out of warranty.

On the other hand, worst case I'd buy and fit the parts myself...

I rust-coated our F's braces when I got the car. Ours is no longer under warranty.

Is this just a TSB? Or, a recall that every owner is entitled to have repaired?

As anybody receive any more information about this?
Is it an actual recall. Does it cover all MY?

SSM74031
 

I was on JLR's case back in 2014 about this issue...fortunately our latest F-Type got corrosion protection from me, so it will not rust.

Hope this helps a few folk...

It is a Special Service Message from JLR Called Under Body Brace Corrosion. Look under Chassis section in TopIX, it's only a few bucks for an hours login.

SSM74031

Issue: A customer may complain of corrosion appearing on the Under-body braces.

Cause: Insufficient Zinc-Nickel plating on current components.

New spec parts include a Zinc-Nickel plated layer between paint protection and the metal substrate which provides a greater level of corrosion protection for exposed Under Body steel components, including protection against stone chipping and other environmental impacts due to Zinc-Nickel hardness properties.

Action: If any of the Rear Under body braces are exhibiting red rust corrosion, replace them with the new part number as listed below, and submit an EPQR with photo’s attached of the concern and quoting this SSM.

While helping a friend shop for used F-Tyes, I noticed that the new-style under body braces had a different front shape in the front also. The old braces were prone to having road grit sand-blast the coating off the leading edges. The newer braces are much slimmer so this tendency should be lessened.

When I refinished our '14s braces, I applied aluminum ducting tape to any areas that had been prone to road grit deterioration. The aluminum conforms easily to the shapes of the bracketry and it won't fall off. (I use it to retain wheel weights, too.)

I like your thinking, (I've seen this used on race car wheel weights) but I wonder what happens to the trapped moisture?

One thing that we use to good affect offshore (which is about the harshest conditions you can get) is Denso Tape; Sticks like sh1t to a blanket, waterproof and greasy.

Shouldn't be any trapped moisture on a surface painted with POR-15, which is what I used. Note that it comes with pre-painting prep treatments. (As they always say "It's all in the prep!")

https://www.por15.com/Stop-Rust-Kit


After the paint dried for a day, I put the aluminum tape into place to protect against chips. :icon_clapclap:

Sorry for my ignorance, but what is an "SSM"?
Is it work done under warranty?

It's a Special Service Message, see post #7.
Dunno if it is / they are covered under the factory warranty.