2005 A6 Brake Caliper Rattle
04-10-2008, 01:02 PM
#1
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2005 A6 Brake Caliper Rattle
This is an update and additional request for help.
I have a 2005 A6 Quattro 3.2 (USA) which now has roughly 34,000 miles. I acquried it at 16,000 miles. My problem is that I have a annoying rattle in the rear suspension at low speeds (under 20mph) on rough pavement. This rattle ceases immediatly with even slight brake peddle pressure.
Upon removing a rear wheel I find that the brake caliper is attached to the axle mounting bracket using a pin which is firmly screwed into the caliper but floats in the mounting bracket, allowing the caliper to move in all directions (in / out / horizontal / vertical) slightly giving a metallic rattle.
Aside from the annoying rattle, it seems quite unusual to me that the caliper pin would float so freely. Most systems I have worked on had pins which screwed into the mounting bracket firmly and which only allowed the caliper to move in and out on the pin with no lateral movement.
Have any of you experienced a similar setup and rattle?
It makes a $550KUS car sound like a piece of junk.
I have a 2005 A6 Quattro 3.2 (USA) which now has roughly 34,000 miles. I acquried it at 16,000 miles. My problem is that I have a annoying rattle in the rear suspension at low speeds (under 20mph) on rough pavement. This rattle ceases immediatly with even slight brake peddle pressure.
Upon removing a rear wheel I find that the brake caliper is attached to the axle mounting bracket using a pin which is firmly screwed into the caliper but floats in the mounting bracket, allowing the caliper to move in all directions (in / out / horizontal / vertical) slightly giving a metallic rattle.
Aside from the annoying rattle, it seems quite unusual to me that the caliper pin would float so freely. Most systems I have worked on had pins which screwed into the mounting bracket firmly and which only allowed the caliper to move in and out on the pin with no lateral movement.
Have any of you experienced a similar setup and rattle?
It makes a $550KUS car sound like a piece of junk.
03-31-2014, 09:26 AM
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Hi. Did you ever get this sorted??I just did front discs and pads on my 2006 A6 because of the exact same rattle but it persists! On closer inspection I could see that the caliper was able to move forwards and backwards somewhat on the caliper pins. This was allowing the pad to rattle in the caliper... Is this a design fault?
This is an update and additional request for help.
I have a 2005 A6 Quattro 3.2 (USA) which now has roughly 34,000 miles. I acquried it at 16,000 miles. My problem is that I have a annoying rattle in the rear suspension at low speeds (under 20mph) on rough pavement. This rattle ceases immediatly with even slight brake peddle pressure.
Upon removing a rear wheel I find that the brake caliper is attached to the axle mounting bracket using a pin which is firmly screwed into the caliper but floats in the mounting bracket, allowing the caliper to move in all directions (in / out / horizontal / vertical) slightly giving a metallic rattle.
Aside from the annoying rattle, it seems quite unusual to me that the caliper pin would float so freely. Most systems I have worked on had pins which screwed into the mounting bracket firmly and which only allowed the caliper to move in and out on the pin with no lateral movement.
Have any of you experienced a similar setup and rattle?
It makes a $550KUS car sound like a piece of junk.
I have a 2005 A6 Quattro 3.2 (USA) which now has roughly 34,000 miles. I acquried it at 16,000 miles. My problem is that I have a annoying rattle in the rear suspension at low speeds (under 20mph) on rough pavement. This rattle ceases immediatly with even slight brake peddle pressure.
Upon removing a rear wheel I find that the brake caliper is attached to the axle mounting bracket using a pin which is firmly screwed into the caliper but floats in the mounting bracket, allowing the caliper to move in all directions (in / out / horizontal / vertical) slightly giving a metallic rattle.
Aside from the annoying rattle, it seems quite unusual to me that the caliper pin would float so freely. Most systems I have worked on had pins which screwed into the mounting bracket firmly and which only allowed the caliper to move in and out on the pin with no lateral movement.
Have any of you experienced a similar setup and rattle?
It makes a $550KUS car sound like a piece of junk.
03-31-2014, 10:26 AM
#3
I too, had a caliper rattle. What I found was that there were springs that were missing, which, when replace, resolved the rattle.
The front part number: 1K0615269A
The rear part number: 3D0615231
For my case, it was the front retaining spring missing that caused the noise. Replacing that resolved the problems completely.
The front part number: 1K0615269A
The rear part number: 3D0615231
For my case, it was the front retaining spring missing that caused the noise. Replacing that resolved the problems completely.
04-08-2014, 01:46 AM
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Thats great ProtoFly! I have high hopes that this is going to solve it. I had a look at EKTA and the location of said spring clip makes sense that it should stop the lateral side of the caliper to move fore and aft.
I suppose I could also look to see if there visible on the rear for confirmation.
Many thanks again for this. I have no idea how the previous owner(s) could ever have left these off...
I suppose I could also look to see if there visible on the rear for confirmation.
Many thanks again for this. I have no idea how the previous owner(s) could ever have left these off...
I too, had a caliper rattle. What I found was that there were springs that were missing, which, when replace, resolved the rattle.
The front part number: 1K0615269A
The rear part number: 3D0615231
For my case, it was the front retaining spring missing that caused the noise. Replacing that resolved the problems completely.
The front part number: 1K0615269A
The rear part number: 3D0615231
For my case, it was the front retaining spring missing that caused the noise. Replacing that resolved the problems completely.
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