Re: Noise from the Brakes Quote:
Originally Posted by drsachin I recently underwent service at a Gomechanic workshop(JMS automobiles, Sahibabad). Since it was a lockdown, the ease of sitting at home and booking through app sounded good. The Hyundai ASS were closed in april in my area. While servicing they informed that my rear brake pads needed replacement. My car had run 75000kms and they were running on original pads. They did send photos of both front and rear brake pads. The rear brake pads were indeed very thin. The front brake pads were as good as new.
They changed rear brake pads to a company named "Compo Advics". I was given 20000kms warranty on these brake pads. Those brake pads worked ok for around around 2500kms but after that they started giving me issues. At slow speeds there was a whistling sounds from rear tyres. I stopped the car and checked on brakes and noticed that my rear brake rotors were as hot as a furnace, while the front rotors were just warm. There was a burning smell near rear brake pads.
I complained at Gomechanic ,and they suggested to bring the car back to workshop. They removed the brake pads and noticed some stray metal wires at some places on the brake pads. Later they changed these brake pads to new one from another company called "Allied Nippon". Now my car has run another 3000kms and no such issues.
I regularly check my brake pads now for damage and rotors for heating issues. I still notice that rear rotors are hotter compared to front ones but not furnace hot as before.
Few questions from fellow Team bhpians.
1. Is it normal for a car to have such differential front and rear brake pad wear. As per mechanic my front brake pads is as good as new. He thought I might have replaced them at last service. Even my rotors show uneven wear. Front rotors are as good as new, while rear ones show appreciable wear in the form of lines.
2. Should I continue with this new brake pads from "allied Nippon" or should I get them changed to some branded ones like Bosch, Roulunds, IGB or OEM. OEM ones are indeed expensive at Rs6000. Rest all are available for around 700 to 1000. |
The caliper guide rods/slide pins are seized. That is the reason for the rear brakes to overheat. If the rear brakes are still heating much more than the front then you need to remove all the old dried up caliper grease from the guide holes using a brake cleaner , clean the caliper pins and apply small amount of fresh caliper grease and re-fit everything back. The heating is nothing to do with the brand of brake pads. Since the pins are seized, the pads are constantly touching the rotor and getting over heated. It is as if you are riding the brakes. I had same problem after service on my i20. The rear discs and wheels were super hot by the time I reached home. Accidently found it since it started to rain as soon as I parked and steam started to come out of rear discs! In my case, the HASS had greased the caliper without cleaning the old dry grease and this caused the caliper to get stuck!
In Hyundai, the rear brake pads do no wear out faster than front. I guess the only car that I know of which eats rear pads faster than front is the Toyota Corolla.
Last edited by sagarpadaki : 10th March 2021 at 14:59.
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