rust-proof question

andysat said:
Maniac said:
Underside I assume? Up to you. I haven't and at year four I wish I had but then I use mine 365
Have you got signs of rust underneath mate?

Nope. Just got the car this year back in July. It also comes with the electronic rust module installed..although, I've been told it is best to also get it rust-proof sprayed.
 
Only on one piece, a triangular section of reinforcement and even then it's not rusty per se it's more surface colour. I plan on getting it rubbed down and sealed. Same sort of thing you see on hubs.
 
The steel is factory proofed and the Z4 has no history of rust appearing on the structure or panels (unless there has been damage). Brake pipes, springs, shocks and other fittings will deteriorate and rust but proofing won't really help once it's taken. Slapping something like Waxoyl is to be avoided at all costs, it stinks, drips all over the floor for weeks, and can smoke off or even catch fire if it's near hot components :thumbsdown:
 
andysat said:
Whats an electronic rust module do?? :?

as quoted

"The Module uses technology which interferes with the electrical charge between iron and oxygen so it becomes difficult to form rust. This is achieved by creating a negative (-) charge on the metal surface, causing the Oxygen (-) atom to be repelled by the (-) surface charge"

rust proofing digitally? :)
 
Ewazix said:
The steel is factory proofed and the Z4 has no history of rust appearing on the structure or panels (unless there has been damage). Brake pipes, springs, shocks and other fittings will deteriorate and rust but proofing won't really help once it's taken. Slapping something like Waxoyl is to be avoided at all costs, it stinks, drips all over the floor for weeks, and can smoke off or even catch fire if it's near hot components :thumbsdown:

Yeah. I just found out we actually have warranty for perforation due to corrosion is for a period of 12 years / unlimited kilometres.

I'll skip the rustproofing - thanks guys!
 
That covers body panels and structure perforation from the inside. It doesn't protect anything exposed. As I say mine looks like its suffering so I'll be taking action on it to keep it pristine.
 
The only place I would concentrate on would be the wheel arches behind the liners, the rest of the car should already have sufficient rust protection on the floorpan and BMW already use wax protection in the box sections, you should be able to see where the wax has run out of the drain holes etc. I used Dinitrol underbody wax on the Z3 and in the sills and rear arches and still good as new after 12 years.

The question you need to ask is how long you intend on keeping the car, if only a few years I wouldn't bother.

Tim.
 
Maniac said:
That covers body panels and structure perforation from the inside. It doesn't protect anything exposed. As I say mine looks like its suffering so I'll be taking action on it to keep it pristine.

What you thinking of using? I've only ever used Waxoyl for box sections and undersides of classics (and sheds in my younger days) but as I say it's not really something I'de recommend on a Zed

I'de be really interested to hear any feedback about some of the pro gear like Ziebart, Dinitrol or RstStop which looks a bit more like it http://www.ruststop.net/
 
TitanTim said:
The only place I would concentrate on would be the wheel arches behind the liners, the rest of the car should already have sufficient rust protection on the floorpan and BMW already use wax protection in the box sections, you should be able to see where the wax has run out of the drain holes etc. I used Dinitrol underbody wax on the Z3 and in the sills and rear arches and still good as new after 12 years.

The question you need to ask is how long you intend on keeping the car, if only a few years I wouldn't bother.

Tim.

Did you apply the dinitrol yourself?
 
Ewazix said:
Maniac said:
That covers body panels and structure perforation from the inside. It doesn't protect anything exposed. As I say mine looks like its suffering so I'll be taking action on it to keep it pristine.

What you thinking of using? I've only ever used Waxoyl for box sections and undersides of classics (and sheds in my younger days) but as I say it's not really something I'de recommend on a Zed

I'de be really interested to hear any feedback about some of the pro gear like Ziebart, Dinitrol or RstStop which looks a bit more like it http://www.ruststop.net/
Can I ask why you would not recommend Waxoyl for a zed?
 
The Dinitrol underbody wax I find is far superior to Finnigans Waxoyl as it goes on in thick brown metallicky finish and doesn't dry out in the longterm like waxoyl. Dinitrol cavity wax is far thinner and can be a bit messy to work with as its like water.

http://www.frost.co.uk/catalogsearch/result/?q=dinitrol&order=relevance&dir=desc&x=34&y=23

Tim.
 
Having had mine up in the air, the part seen here, the triangular section (looks like the superman logo upside down between the two blue ramps) is the one thats showing signs of surface rust/tarnishing. Rest of it looks reasonable.

4644625440_6f71823bf6_o.jpg
 
Merrsh1 said:
TitanTim said:
The only place I would concentrate on would be the wheel arches behind the liners, the rest of the car should already have sufficient rust protection on the floorpan and BMW already use wax protection in the box sections, you should be able to see where the wax has run out of the drain holes etc. I used Dinitrol underbody wax on the Z3 and in the sills and rear arches and still good as new after 12 years.

The question you need to ask is how long you intend on keeping the car, if only a few years I wouldn't bother.

Tim.

Did you apply the dinitrol yourself?

Yes I did, bought 5 aerosol cans to do the underside of the Z3 and the rear arches, its a bit messy if your prepared to get on your back under the car, car hoist would be ideal and just bought a couple of cavity wax cans to do the rear arches, sills, bonnet and boot, the doors had already been proofed.

Tim.
 
andysat said:
Ewazix said:
Maniac said:
That covers body panels and structure perforation from the inside. It doesn't protect anything exposed. As I say mine looks like its suffering so I'll be taking action on it to keep it pristine.

What you thinking of using? I've only ever used Waxoyl for box sections and undersides of classics (and sheds in my younger days) but as I say it's not really something I'de recommend on a Zed

I'de be really interested to hear any feedback about some of the pro gear like Ziebart, Dinitrol or RstStop which looks a bit more like it http://www.ruststop.net/
Can I ask why you would not recommend Waxoyl for a zed?

see my post 8 spots up the page :)
 
TitanTim said:
Merrsh1 said:
TitanTim said:
I used Dinitrol underbody wax on the Z3 and in the sills and rear arches and still good as new after 12 years.

Tim.

Did you apply the dinitrol yourself?

Yes I did, bought 5 aerosol cans to do the underside of the Z3 and the rear arches

Tim.

Very good. So would I be correct in thinking getting the car up on a lift and spraying the underside would be the best way to do it? Mines being garaged since birth but for the sake of a couple of hundred quid it would seem silly not to do this. I avoid driving in winter but sometimes have to use my car if the wifes barge is unavailable.
 
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