Squealy Wheels
Discussion
When I took the car in to Wilmslow OPC a couple of weeks ago for its major service, brake fluid change etc I asked them to look at a squeal I have that's coming from the wheels/brakes. Naturally the cloth-eared "technician" couldn't hear anything and couldn't be arsed actually spending any time investigating so it's still there and I'm struggling to identify what the issue is. Before I go and book it in with my Indy can anyone please help me resolve it?
So, the noise is just like squealing brakes except that it is present when moving up to about 15mph. Any faster or with the brake pedal depressed and it goes. Also, it is not a constant noise but almost like one section of the disc is coming into contact with the pad as it rotates. There is plenty of meat on the pads
Any ideas?
So, the noise is just like squealing brakes except that it is present when moving up to about 15mph. Any faster or with the brake pedal depressed and it goes. Also, it is not a constant noise but almost like one section of the disc is coming into contact with the pad as it rotates. There is plenty of meat on the pads
Any ideas?
Klippie said:
Your brakes probably need striped and cleaned...if your mechanically minded it's quite an easy job.
By the way your OPC will not do this as part of the service.
Yes, I'm happy enough to do it myself. Do you know if is it documented anywhere?By the way your OPC will not do this as part of the service.
Re: the OPC... it seems they don't do too much at all as part of the service. Which is unfortunate
It's easy...you need to go and buy 4 new caliper mounting bolts from the OPC ( it's OK they are cheap ) but you only need them for the front as the caliper has to come off to remove the pads, the rear pads can be removed with the caliper in place.
Carefully disconnect the pad sensors and remove them from the pads.
Look for a small R-clip through the retaining pin remove this and tap the pin out.
Lift off the caliper ( front only )
The pads have dowels which fit into the pistons they can be a fiddly to remove if corroded.
I don't know if your familiar with bike brakes Porsche brakes are basically big versions of them.
Hope this helps....
Carefully disconnect the pad sensors and remove them from the pads.
Look for a small R-clip through the retaining pin remove this and tap the pin out.
Lift off the caliper ( front only )
The pads have dowels which fit into the pistons they can be a fiddly to remove if corroded.
I don't know if your familiar with bike brakes Porsche brakes are basically big versions of them.
Hope this helps....
Klippie said:
It's easy...you need to go and buy 4 new caliper mounting bolts from the OPC ( it's OK they are cheap ) but you only need them for the front as the caliper has to come off to remove the pads, the rear pads can be removed with the caliper in place.
Carefully disconnect the pad sensors and remove them from the pads.
Look for a small R-clip through the retaining pin remove this and tap the pin out.
Lift off the caliper ( front only )
The pads have dowels which fit into the pistons they can be a fiddly to remove if corroded.
I don't know if your familiar with bike brakes Porsche brakes are basically big versions of them.
Hope this helps....
Thanks - much appreciated Carefully disconnect the pad sensors and remove them from the pads.
Look for a small R-clip through the retaining pin remove this and tap the pin out.
Lift off the caliper ( front only )
The pads have dowels which fit into the pistons they can be a fiddly to remove if corroded.
I don't know if your familiar with bike brakes Porsche brakes are basically big versions of them.
Hope this helps....
Ok, problem now resolved.
There were a number of issues: lots of brake dust, corroded retainer clips, corroded pins and the backing plates were no longer stuck to the pads! Haven't had time to sort it myself so dropped it off at Unit 11 for them to resolve.
As ever, perfect service from Danny at Unit 11 and obviously a damn sight better quality of workmanship than you get from an OPC. And cheaper too. It just goes to show how crap Porsche dealers really are, in that their spanner monkey couldn't identify a pretty basic issue - probably as he'd have to remove the wheels.
I'm starting to wonder whether they actually changed the brake fluid, or just pretended to...
There were a number of issues: lots of brake dust, corroded retainer clips, corroded pins and the backing plates were no longer stuck to the pads! Haven't had time to sort it myself so dropped it off at Unit 11 for them to resolve.
As ever, perfect service from Danny at Unit 11 and obviously a damn sight better quality of workmanship than you get from an OPC. And cheaper too. It just goes to show how crap Porsche dealers really are, in that their spanner monkey couldn't identify a pretty basic issue - probably as he'd have to remove the wheels.
I'm starting to wonder whether they actually changed the brake fluid, or just pretended to...
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