Fuel Tank Corrosion / Replacement

Fuel Tank Corrosion / Replacement

Author
Discussion

Breadvan2

Original Poster:

141 posts

133 months

Wednesday 3rd April
quotequote all
Bought a main dealer approved 570s around 6 months ago.
I’ve done 900 miles since and kept the car stored in a dehumidified garage.

My independent was looking over the car due to some noise from the ceramics under braking, turns out it’s normal.

During the inspection he found corrosion on the fuel tank, two oil leaks and 4 coolant leaks.

Not too bothered about the leaks as assume they will be covered by warranty or an easy fix. I am a bit pissed about the fuel tank corrosion though, I believe the corrosion needs to be a certain depth for McLaren to honor warranty?

Otherwise car is mint and I’ve had zero issues since purchase

Any owner expeirences out there??

Implus1

179 posts

41 months

Wednesday 3rd April
quotequote all
Could be similar to what happened to the owner on this thread?

https://www.pistonheads.com/gassing/topic.asp?h=0&...

Breadvan2

Original Poster:

141 posts

133 months

Wednesday 3rd April
quotequote all
Implus1 said:
Could be similar to what happened to the owner on this thread?

https://www.pistonheads.com/gassing/topic.asp?h=0&...
I’ll have a look. Thanks for the link, much appreciated

Caddyshack

10,829 posts

207 months

Wednesday 3rd April
quotequote all
Wow, it’s not a very old car. I wonder if it has had the cheap, rubbish new types of petrol in there.

Breadvan2

Original Poster:

141 posts

133 months

Wednesday 3rd April
quotequote all
The corrosion is on the outside of the tank, not the inside.

The independent, who is a former McLaren master tec, said the car is in great condition and looks like it’s been garaged since new.

Only corrosion is on the outside of the tank

Caddyshack

10,829 posts

207 months

Thursday 4th April
quotequote all
Breadvan2 said:
The corrosion is on the outside of the tank, not the inside.

The independent, who is a former McLaren master tec, said the car is in great condition and looks like it’s been garaged since new.

Only corrosion is on the outside of the tank
That is a big difference then! Are they Alloy or Steel?

If Steel: I would be tempted to use a bilt hamber anti rust treatment on it and then rub it down and spray it with a 2k epoxy primer, paint then lacquer. Annual tretments of lanoguard would keep it at bay and lanoguard on its own would do a pretty good job.

If Alloy: Clean up with scotch bright pad and then seal it with lanoguard or ACF type stuff

Breadvan2

Original Poster:

141 posts

133 months

Thursday 4th April
quotequote all
Caddyshack said:
That is a big difference then! Are they Alloy or Steel?

If Steel: I would be tempted to use a bilt hamber anti rust treatment on it and then rub it down and spray it with a 2k epoxy primer, paint then lacquer. Annual tretments of lanoguard would keep it at bay and lanoguard on its own would do a pretty good job.

If Alloy: Clean up with scotch bright pad and then seal it with lanoguard or ACF type stuff
I’m not 100% sure myself, I’m thinking steel but could be wrong

I’ll be hoping McLaren warranty will cover a replacement