rear brakes are over-heating
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rear brakes are over-heating
Hello friends, I'm sorry my English is not very good but I hope you will understand me and help me solve the problem. it's an Audi A6 C6 2010 2.0 TDI, I have a problem that my rear wheels get dirtier than the front ones, and they heat up more, but they're not huge temperatures. I repaired the rear caliper, changed the discs and pads and again the same, is this actually a problem or is it normal.
Yesterday I noticed that when I activate the EPB and release it, I noticed that the disc spins very hard, then I separate them 2 millimeters from the disc with a screwdriver and it spins freely, and when I try to press the foot brake hard and let go, they disc are totally freely.
I tested the car yesterday 100 km the rear wheels were totally cold but I didn't start the epb for a single moment, after that drive I activated the EPB and lowered it and they warmed up after 10 km so I had to remove the wheels off again to release the caliper.
Does this mean that the support calipers or brake calipers are not good?
Yesterday I noticed that when I activate the EPB and release it, I noticed that the disc spins very hard, then I separate them 2 millimeters from the disc with a screwdriver and it spins freely, and when I try to press the foot brake hard and let go, they disc are totally freely.
I tested the car yesterday 100 km the rear wheels were totally cold but I didn't start the epb for a single moment, after that drive I activated the EPB and lowered it and they warmed up after 10 km so I had to remove the wheels off again to release the caliper.
Does this mean that the support calipers or brake calipers are not good?
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Joined: Sep 2019
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From: Canada, Toronto
Hello friends, I'm sorry my English is not very good but I hope you will understand me and help me solve the problem. it's an Audi A6 C6 2010 2.0 TDI, I have a problem that my rear wheels get dirtier than the front ones, and they heat up more, but they're not huge temperatures. I repaired the rear caliper, changed the discs and pads and again the same, is this actually a problem or is it normal.
Yesterday I noticed that when I activate the EPB and release it, I noticed that the disc spins very hard, then I separate them 2 millimeters from the disc with a screwdriver and it spins freely, and when I try to press the foot brake hard and let go, they disc are totally freely.
I tested the car yesterday 100 km the rear wheels were totally cold but I didn't start the epb for a single moment, after that drive I activated the EPB and lowered it and they warmed up after 10 km so I had to remove the wheels off again to release the caliper.
Does this mean that the support calipers or brake calipers are not good?
Yesterday I noticed that when I activate the EPB and release it, I noticed that the disc spins very hard, then I separate them 2 millimeters from the disc with a screwdriver and it spins freely, and when I try to press the foot brake hard and let go, they disc are totally freely.
I tested the car yesterday 100 km the rear wheels were totally cold but I didn't start the epb for a single moment, after that drive I activated the EPB and lowered it and they warmed up after 10 km so I had to remove the wheels off again to release the caliper.
Does this mean that the support calipers or brake calipers are not good?
there is a procedure how to release EPB motors beore changing rear brakes.
second, rear brakes are used to maintain cruise control speed. So if you use crusie control a lot, rear end brakes are used much more and will heat up more.
third, bad wheel bearings can cause many problems
Thread Starter
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you most likelly broke your EPB by pushing it with a screwdriver.
there is a procedure how to release EPB motors beore changing rear brakes.
second, rear brakes are used to maintain cruise control speed. So if you use crusie control a lot, rear end brakes are used much more and will heat up more.
third, bad wheel bearings can cause many problems
there is a procedure how to release EPB motors beore changing rear brakes.
second, rear brakes are used to maintain cruise control speed. So if you use crusie control a lot, rear end brakes are used much more and will heat up more.
third, bad wheel bearings can cause many problems
I don't use cruise control
Thread Starter
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Thread Starter
AudiWorld Junior Member
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One more thing to add, they are not huge temperatures, but approximately the rear wheels after driving for 30 km will be at around 40 degrees and the front at 25 measured with a digital thermometer
But when I move the rear caliper a little and do not activate the EPB, after the same ride, the front wheels are at 25 degrees and the rear at 15 degrees Celsius
But when I move the rear caliper a little and do not activate the EPB, after the same ride, the front wheels are at 25 degrees and the rear at 15 degrees Celsius
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From: BC, Canada
Again, maybe something is just dirty. So many problems can be fixed just by servicing things instead of just swapping parts. It's a somewhat simple system, an electric motor drives some gears, then a shaft turns a threaded piston in and out. Clean the system. Sounds like something is just getting hung up slightly, as your temps are too bad at all. Dragging brakes would create more heat than just 40c.
What happens when you apply the EPB, then take it off. THEN pump your normal brakes, does this free up the rotor?
What happens when you apply the EPB, then take it off. THEN pump your normal brakes, does this free up the rotor?
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From: CT
When you turn off the EPB, can you hear it operate? One of the nicest things about the system is that it allows for a larger running clearance for the pads than older technologies which were not as positive a release.
Thread Starter
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Again, maybe something is just dirty. So many problems can be fixed just by servicing things instead of just swapping parts. It's a somewhat simple system, an electric motor drives some gears, then a shaft turns a threaded piston in and out. Clean the system. Sounds like something is just getting hung up slightly, as your temps are too bad at all. Dragging brakes would create more heat than just 40c.
What happens when you apply the EPB, then take it off. THEN pump your normal brakes, does this free up the rotor?
What happens when you apply the EPB, then take it off. THEN pump your normal brakes, does this free up the rotor?