Brake Pad Thickness
#11
AudiWorld Super User
By making a gross measurement (pad plus backing plate plus anything else) they eliminate the need for techs to make math errors while doing subtraction, so that makes good sense.
Most brake pads that I've seen have wear indicators molded into them, similar to the raised wear indicators in tires. Except in the brake pads it is usually a machined slot, and once the pad material is worn down so that there's no visible slot left, it is time to replace. That makes for a quick easy eyeball measurement, no special depth gauge needed. But of course, it also means eliminating some small bit of pad material, until it has worn down and needs replacement.
"No special service tools needed" appeals to this Yankee.
Most brake pads that I've seen have wear indicators molded into them, similar to the raised wear indicators in tires. Except in the brake pads it is usually a machined slot, and once the pad material is worn down so that there's no visible slot left, it is time to replace. That makes for a quick easy eyeball measurement, no special depth gauge needed. But of course, it also means eliminating some small bit of pad material, until it has worn down and needs replacement.
"No special service tools needed" appeals to this Yankee.
#12
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Thanks!
This explains why they were indicating a 10mm min.
So if this measurement was 12mm, the pads alone are likely about 5-7mm?
The Q5 does have 55,000km, almost all city driving and her "driving style" is not particularly easy on brake pads either...
This explains why they were indicating a 10mm min.
So if this measurement was 12mm, the pads alone are likely about 5-7mm?
The Q5 does have 55,000km, almost all city driving and her "driving style" is not particularly easy on brake pads either...
#14
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#15
Hi, when replacing the rear pads on a 2010 Q5 are the inner and outer pads interchangeable? All 4 in the box seem to look exactly the same but I'm not sure if there subtle differences that require them to be used in a specific combination?
Thanks
Thanks
#17
AudiWorld Super User
Inner and outer pads can wear much differently. The sensor on works on one pad and not both sides of the vehicle.
I have seen people ruin the rotor were a pad as totally gone (metal on the rotor) and the other pad didn't wear as much and not trigger the sensor.
If you remove the pads before the warning light comes on you will save yourself from buying a new sensor as you can remove and use the old one.
All the aftermarket pads I have seen don't come with the sensor, no sure about OEM.
I have seen people ruin the rotor were a pad as totally gone (metal on the rotor) and the other pad didn't wear as much and not trigger the sensor.
If you remove the pads before the warning light comes on you will save yourself from buying a new sensor as you can remove and use the old one.
All the aftermarket pads I have seen don't come with the sensor, no sure about OEM.
Last edited by Bob Petruska; 01-28-2018 at 09:02 AM.
#18
#19
AudiWorld Super User
Dont believe my rear pads have sensors..
maybe my mistake. The textar spare pads I have come with a sensor. Can anyone confirm this for the Q5 2.0l TFsi 8R??
what puzzles me is that the rear sensor coding was disabled when I purchased the Q5.
Yes there is a rear pad sensor coding but probably my sensor is/was not installed. Will check when rear ones need to be replaced.
How to check?? Flash light and measure thickness (from rims).
This aftermarket rear brake pad kit comes with all parts one will may need to replace.
Last edited by apoelistas; 03-12-2021 at 03:01 PM.
#20
AudiWorld Super User
front have sensors.
Dont believe my rear pads have sensors..
maybe my mistake. The textar spare pads I have come with a sensor. Can anyone confirm this for the Q5 2.0l TFsi 8R??
what puzzles me is that the rear sensor coding was disabled when I purchased the Q5.
Yes there is a rear pad sensor coding but probably my sensor is/was not installed. Will check when rear ones need to be replaced.
How to check?? Flash light and measure thickness (from rims).
This aftermarket rear brake pad kit comes with all parts one will may need to replace.
Dont believe my rear pads have sensors..
maybe my mistake. The textar spare pads I have come with a sensor. Can anyone confirm this for the Q5 2.0l TFsi 8R??
what puzzles me is that the rear sensor coding was disabled when I purchased the Q5.
Yes there is a rear pad sensor coding but probably my sensor is/was not installed. Will check when rear ones need to be replaced.
How to check?? Flash light and measure thickness (from rims).
This aftermarket rear brake pad kit comes with all parts one will may need to replace.
CarQuest (Advance Auto) Platinum Pro kit.
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apoelistas (03-12-2021)
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