Can salt actually destroy brakes (disks and pads) ?
Discussion
Hi
Two weeks ago, I drove in snow condition in France. The snow became slush after a day and the authorities have put salt on the roads.
I had to drive for around 500-600km and my car was braking in a total normal way. My disks are mid life and my front pads are 2000km old.
So 10 days ago, I parked my car in my underground parking and let it there for the last 10 days. I didnt have the time to was the cas before parking it.
Today, I had to drive about 250km. So I went to my parking, started my car and at the beginning, i was unable to move. My brake pads were "glued" to my disk (I guess only my back park pads). After two tries, my car moved. There was a lot of salty rust on my disk brakes. So while moving slowly, there was a lot of noise coming from the wheel, like if a sand paper was sliding over the disk. I just thought "ok after few Km, it will be ok".
Then I started to drive and each time I was braking, it was noisy, not noisy like a continuous noise, no, more like a rag rag rag rag at the pace of the running wheels. I drove 250km, and it didn't disappeared, I would even say that it's worth now...
To summarise : I drove for few hundreds of KM on salty roads, my brakes were perfect > I park my car for 10 days > I drive it and the brakes are shaky and make noise.
Reason why I'm asking, can road salt can destroy brake disks and pads ?
Two weeks ago, I drove in snow condition in France. The snow became slush after a day and the authorities have put salt on the roads.
I had to drive for around 500-600km and my car was braking in a total normal way. My disks are mid life and my front pads are 2000km old.
So 10 days ago, I parked my car in my underground parking and let it there for the last 10 days. I didnt have the time to was the cas before parking it.
Today, I had to drive about 250km. So I went to my parking, started my car and at the beginning, i was unable to move. My brake pads were "glued" to my disk (I guess only my back park pads). After two tries, my car moved. There was a lot of salty rust on my disk brakes. So while moving slowly, there was a lot of noise coming from the wheel, like if a sand paper was sliding over the disk. I just thought "ok after few Km, it will be ok".
Then I started to drive and each time I was braking, it was noisy, not noisy like a continuous noise, no, more like a rag rag rag rag at the pace of the running wheels. I drove 250km, and it didn't disappeared, I would even say that it's worth now...
To summarise : I drove for few hundreds of KM on salty roads, my brakes were perfect > I park my car for 10 days > I drive it and the brakes are shaky and make noise.
Reason why I'm asking, can road salt can destroy brake disks and pads ?
You've probably broken one of the friction material liners off the backing plate of one of your parking brake pads. I've done this once in the Vantage having parked the car with wet discs/pads after cleaning it.
To answer your question, no, I really don't think salt can destroy disks in that time.
To answer your question, no, I really don't think salt can destroy disks in that time.
I've check the visible part (external part of the rotors) of the two back disks and i dont see anything stuck on them. But let's assume there is a "part" of the hand brake pads stuck on the inside side of one of my disk. Could this generate the vibration on the steering wheel ? I've this mark but it looks smooth, no "part of the pads stuck on this side of the disk. I dont know how to check on the other side...
Edited by TheBigHunt on Saturday 17th January 17:32
Edited by TheBigHunt on Saturday 17th January 17:41
I've experienced this with my DB9. The last mile to my house is uphill, so no braking. If I'm driving hom in a downpour the car is parked with cold wet brakes and the pads will stick to the discs. The next drive starts with unsticking the brakes. After that, applying the brakes results in the sound & feel that you describe. Warming up the brakes with some hard braking clears material from the discs.
yvr said:
I've experienced this with my DB9. The last mile to my house is uphill, so no braking. If I'm driving hom in a downpour the car is parked with cold wet brakes and the pads will stick to the discs. The next drive starts with unsticking the brakes. After that, applying the brakes results in the sound & feel that you describe. Warming up the brakes with some hard braking clears material from the discs.
Well, when i started driving, I did some hard break to try to solve my problem... the issue is that after 250km, it's still there and worth, like more abrupt, rough. Not like a clac clac clac but not that far, coming from some wheels. I'll bring it to the garage in 10 days. Until then, i wont use itAs my car is an automatic I never use the handbrake, I just put it in 'P'. If it's been in for a service and the mechanic has put the handbrake on, I can never figure out how to get the b
d off. The first (and last) time I used it - at a petrol station just after buying it - I had to get the handbook out...
The Jaguars were much more sensible - just a little central lever you pull up, and it automatically releases when you drive away.
d off. The first (and last) time I used it - at a petrol station just after buying it - I had to get the handbook out...The Jaguars were much more sensible - just a little central lever you pull up, and it automatically releases when you drive away.
I had to park my car up once for a month after a salty drive, it was my daily and I had been rear-ended, and when I went to move it to go for repair the front discs had corroded so badly on the exposed surfaces it had eaten a chunk of it away. The but that had been under the pads was ok but still rusty, braking just showed that the disc now had a high spot and juddered like hell. Solved with new discs, which was annoying as they were only 5k old! Measured the old discs and there was a 0.2mm difference between the two areas, more than enough to consign them to scrap. Thankfully it's just a Fabia so discs were £60 for the pair.
aterribleusername said:
I had to park my car up once for a month after a salty drive, it was my daily and I had been rear-ended, and when I went to move it to go for repair the front discs had corroded so badly on the exposed surfaces it had eaten a chunk of it away. The but that had been under the pads was ok but still rusty, braking just showed that the disc now had a high spot and juddered like hell. Solved with new discs, which was annoying as they were only 5k old! Measured the old discs and there was a 0.2mm difference between the two areas, more than enough to consign them to scrap. Thankfully it's just a Fabia so discs were £60 for the pair.
Scary :-(
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