Rusting Discs

Technical Advice, Faults and How-To Information.
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Parfect
Posts: 82
Joined: Wed Jan 03, 2018 11:23 am

Post by Parfect »

Does anyone else’s discs rust whilst washing their car? I find mine rusting before I even finish washing it. I’ve never had a car that this has happened on before.

287BB1CB-1DF5-4440-9325-596E14CDAF49.jpeg

Fife Based 20MY V6 P380
Silver

chicb
Posts: 316
Joined: Wed Jun 21, 2017 7:25 pm

Post by chicb »

Yes, happens all the time. Once round the block & back to normal
F type convertible, (gone)
Range Rover Sport,
S63 AMG Coupe Mercedes
Porsche 911 (992) Carrera 4S
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Parfect
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Joined: Wed Jan 03, 2018 11:23 am

Post by Parfect »

That is what I do too 😊. Just seemed a bit strange that they rust so quickly.
Fife Based 20MY V6 P380
Silver
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Lunar
Posts: 1993
Joined: Wed Apr 26, 2017 9:02 pm
Location: Frimley Surrey

Post by Lunar »

It's a quick car in every sense!
MY14 "S" badged V6 Convertible in Lunar Grey metallic
Performance seats, Meridian, heated flat bottom wheel with aluminium paddles, heated front screen, cruise, dual zone climate, switchable active exhaust
Fez
Posts: 418
Joined: Sat Nov 11, 2017 4:12 pm

Post by Fez »

I spray mine with bilt hamber "Atom Mac" read about it on their web site. You can also wipe on with a rag it does work....and does not effect brakes or pads...
Black AWD 400, sport
MY 18.5
Pan Roof
Heated front screen
Front parking sensors
Full spare
chicb
Posts: 316
Joined: Wed Jun 21, 2017 7:25 pm

Post by chicb »

Happens on my Range Rover as well. Must be a JLR thing. Atom mac is good, only use it if the car is being on Sorn. Oh that's about half a year :lol:
F type convertible, (gone)
Range Rover Sport,
S63 AMG Coupe Mercedes
Porsche 911 (992) Carrera 4S
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steviegtr
Posts: 612
Joined: Fri Mar 15, 2019 10:52 pm
Location: Leeds

Post by steviegtr »

Not really anything but the fact they are made of cast steel.
2017 f type 5.0 R AWD Glacier Pearl white Cabriolet
Sports seats 14way. Powerfold mirrors, Keyless. Hp Brakes, Split rims,
Heated screen. Meridian 380w.
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santoshlv426
Posts: 442
Joined: Tue Mar 26, 2019 12:51 pm
Location: South Africa

Post by santoshlv426 »

I've seen it on all cars - even my Honda.
I don't think it's actual rust, as rust won't go away after driving. It could be quick oxidation of the brake pad compound.
F Type 5.0L V8 RWD 2016
Rhodium Silver

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steviegtr
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Joined: Fri Mar 15, 2019 10:52 pm
Location: Leeds

Post by steviegtr »

Washed mine today at DIY car wash in Garforth. I used the hot soapy lance 1st & immediately noticed the bronzy look on the discs. Probably a result of water/ soapy water quenching the hot discs.
2017 f type 5.0 R AWD Glacier Pearl white Cabriolet
Sports seats 14way. Powerfold mirrors, Keyless. Hp Brakes, Split rims,
Heated screen. Meridian 380w.
RRB
Posts: 89
Joined: Mon Nov 20, 2017 4:32 pm

Post by RRB »

I've complained to JLR about this, their response was that all discs do it....which if you have more than an F type you will clearly see that they don't all rust as fast as an f types do.

I even had the service manager out showing him after they had washed it with plain water you could see it discolour in real time....he raised a Technical report with JLR ....to not surprising zero effect !
2017 Black 400s convertible :D
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