I’m looking for technical help or recommendations on: __
I’ve had my NC for a year now, bought from main dealer away from home. Taken in to local main dealer for rear brake dragging noise at slow speed last Aug, they striped and cleaned but did not replace anything. I had to pay as not under Mazda warranty I have - fair enough - just wanted it fixed.
Today in for major service/MOT and look at past issue as it came back after few months. Not looked at in detail at all only given price to strip and clean again, feel a bit let down.
Should it really need doing on such a short repeat, more money and inconvenience. A bit strange that they say it’s urgent but would rather have me come back another day as only told on collection. I check the rear wheels and they don’t get hot, it’s just an annoying noise as you feather the brakes to a stop - things don’t seem to add up?
I can’t jack the car up at the moment, but it rolls without resistance - so not sure - more of a squeaking noise when near to stopping slowly - not noticeable when reducing speed and carrying on or heavy breaking.
It has full dealer service history, so that’s the reason I went back to my local main dealer - I may call them and ask what faith they have in their ‘fix’ can I get credit to proper resolution if it does not work again.
I would talk to the service manager and point out – show him the invoice! – that the problem you paid to have fixed last August has returned. Obviously, this should not be so. Face to face discussion should help.
Possibly…
The slide pins need lubrication.
Maybe the shims or clips are missing or even both.
Worse scenario both caliper pistons are sticking.
I’ve had also (with new pads) them sticking in the clips, a little filing has sorted them.
On a Mk1’s rear brakes I’ve had the opposite, the pads annoyingly rattled in the clips as they were too loose.
Another car (not MX-5) the discs were so rusted on the rear face (unseen by the mechanic) they were noisy in operation. That car had new pads ruined before another mechanic spotted the problem. New discs and pads second time around.
If of course they were completely stripped lubed and reassembled correctly with the appropriate clips shims then a second pair of eyes/opinion is needed.
Replace the calipers with aftermarket ones…my cars a 2011 and had two gradually fail. Bit the bullet and had all four done…best thing I did. Maybe change two at a time.
Rear discs ON MY NC were noisy when braking. The discs had bad corrosion/pitting on both sides right near the outside diameter but just far enough in for the pads to catch. New discs and pads sorted the problem.
