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Should i wait for car to cool down before washing
- Thread starter mawallace
- Start date
I don't think it gets hot enough in the UK to worry haha.
As for polishing and waxing depending on the product used then cool is better yes.
Axles of Evil
Ready to race!
- Location
- Louisiana USA
DO NOT!
Unless you want warped brake discs, do not put hose pipe water on hot brakes. The quenching process 'could' buckle the disc, and then you end up with vibrations when the brakes are applied. If you are washing the car, always wait until cold.
When driving in the rain, the application of brakes is a gradual and UNIFORM heating process, when washing you may only hit one side of the hot disc (not the other) initially, and then bingo, warping may occur.
Unless you want warped brake discs, do not put hose pipe water on hot brakes. The quenching process 'could' buckle the disc, and then you end up with vibrations when the brakes are applied. If you are washing the car, always wait until cold.
When driving in the rain, the application of brakes is a gradual and UNIFORM heating process, when washing you may only hit one side of the hot disc (not the other) initially, and then bingo, warping may occur.
Finglonga
Drag Racing Champion
- Location
- Stafford, UK, Earth, Solar System.
Whoever told you that is in cloud cuckoo land, how do they explain going through a puddle or flood? The discs will not suffer any ill effects from washing after any journey.
All ferrite metals will get surface rust if any moisture is introduced. Leave the car in gear, instead of applying the parking brake after washing as the pads stick to the discs.
All ferrite metals will get surface rust if any moisture is introduced. Leave the car in gear, instead of applying the parking brake after washing as the pads stick to the discs.
Sandman GTI
Drag Race Newbie
- Location
- Tennessee USA
I vote wait till it cools.
The heat around engine will dry out water/soap before you get rinsed or dried off.
Easier to get water spots.
Open hood and wait 30-60min.
The heat around engine will dry out water/soap before you get rinsed or dried off.
Easier to get water spots.
Open hood and wait 30-60min.
GLoBaLReBeL
Ready to race!
- Location
- South Bend, IN
My car wash place is like 10 min from me. So, I always go early morning (cold) and do not wait. If you're going to spray all up in the wheel wells, than good idea to let the rotors cool down for 10 - 20 minutes. Other than that, you're GTG.
GeoBog
Ready to race!
- Location
- Space the final frontier
I would not put a cold water pressure wash on the car especially the wheels until it cools down. You can warp the brake disks and then the car will vibrate when braking because the disks will be diformed. As for rusty discs because the car is not cooled enough that is bo**ocks. The brake rotors will rust anyway when car is washed no matter of the temperature.