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Rear Brake-Pad and Rotor Replacement

 
Old 10-24-2018, 04:06 PM
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Rear Brake-Pad and Rotor Replacement

Hey - wanted to compare notes with this group. At what kilometers / miles, did you have to replace your rear brake-pads and rotors?
Doing my first replacement of both rear pads and rotors at 46K km / 29K miles...seems kinda of premature for me for the car to be asking for rear rotors this soon....
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Old 10-24-2018, 05:23 PM
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Mine had to be done at 35,000 kms......

I asked why it had to be done with such low kms, I was told that it was because our cars have torque vectoring and it wears out the rear brakes/rotors faster than a normal car.

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Old 10-24-2018, 07:01 PM
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Is this covered under warranty? I think I will need them changed in 1 year from when I got my car (approx 32,500 km). IIRC, some forum members complained of the fast brake wear/brake dust/brake noise and had them replaced for free.
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Old 10-24-2018, 07:16 PM
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I think the factory warranty for Canadian sold C43's (not sure how the US differs) covers premature brake-pad wear if they need to be replaced before either 2 years or 40K km....whichever comes sooner. Not sure if this warranty extends to covering premature wear on rotors though.
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Old 10-24-2018, 08:06 PM
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Had my rear pads warrantied last week. Car has about 21k KM. Rotors are fine.
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Old 10-25-2018, 06:45 AM
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30000kms here heaps of meat left.
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Old 10-25-2018, 07:55 AM
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This has been discussed a few times. Seems cars equipped with the distronic lane keep and adaptive cruise tend to wear out rear brakes very quickly. The car uses the rear brakes to control the cars follow distance during cruise resulting in much faster replacement intervals.
My C400 does not have this feature and i have 24k miles (38k km) on it with original brakes.
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Old 10-25-2018, 08:35 AM
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Originally Posted by MatthewJ View Post
This has been discussed a few times. Seems cars equipped with the distronic lane keep and adaptive cruise tend to wear out rear brakes very quickly. The car uses the rear brakes to control the cars follow distance during cruise resulting in much faster replacement intervals.
My C400 does not have this feature and i have 24k miles (38k km) on it with original brakes.
This is the money answer. I'm at 24k miles and original pads all around. When I changed oil 4k ago, I inspected front and rear pads and still had +/- 50% life remaining. No Distronic for me.
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Old 10-25-2018, 08:56 AM
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Originally Posted by MatthewJ View Post
This has been discussed a few times. Seems cars equipped with the distronic lane keep and adaptive cruise tend to wear out rear brakes very quickly. The car uses the rear brakes to control the cars follow distance during cruise resulting in much faster replacement intervals.
My C400 does not have this feature and i have 24k miles (38k km) on it with original brakes.
Originally Posted by RichardCranium3 View Post
This is the money answer. I'm at 24k miles and original pads all around. When I changed oil 4k ago, I inspected front and rear pads and still had +/- 50% life remaining. No Distronic for me.
Although I agree that Distronic will most likely use more pads. With that said however my car doesn't have Distronic and my rears only lasted 21k. Mind you I don't really care as it was under warranty and the car is going back in Dec.
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Old 10-25-2018, 09:51 AM
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I believe even the non-adaptive equipped cars use the engine braking and rear brakes to slow the car on downhill assents when cruise is on. IE set it to 50mph and try coasting downhill the car will engine brake and apply rear brakes to keep the car at exactly 50mph.
I actually find this quite annoying when i pass someone, forget i have cruise set to 75 and the car aggressively brakes to get back down to 75 after getting around a car.
I have to just keep on the throttle lightly or turn off and re-enable cruise after the car has gradually decreased its speed. Seems inefficient but i guess its supposed to prevent tickets
I could see where this driving style could wear out brakes quickly.
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Old 10-25-2018, 10:42 AM
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I replaced my rear pads at 15k miles. Paid $90.
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Old 10-25-2018, 11:30 AM
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Originally Posted by MatthewJ View Post
I believe even the non-adaptive equipped cars use the engine braking and rear brakes to slow the car on downhill assents when cruise is on. IE set it to 50mph and try coasting downhill the car will engine brake and apply rear brakes to keep the car at exactly 50mph.
I actually find this quite annoying when i pass someone, forget i have cruise set to 75 and the car aggressively brakes to get back down to 75 after getting around a car.
I have to just keep on the throttle lightly or turn off and re-enable cruise after the car has gradually decreased its speed. Seems inefficient but i guess its supposed to prevent tickets
I could see where this driving style could wear out brakes quickly.
This is why I never use CC. I feel it is such a waste of gas when any change to input makes it auto correct. When "manually" driving, the driver can apply gas at the most efficient moments such as uphill, downhill, corners that have sufficient grip...
I just really hate that it brakes just to get back down to the set cruise speed.
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Old 10-29-2018, 08:13 AM
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17k miles and 2 track days and my rears are ready. fronts have life left.
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Old 10-30-2018, 12:27 AM
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I have 33K miles, went to the dealer for service the other day. Front pads are 9mm and rears are 6mm.
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