This will be the end of my saga. This weekend, after trying 2x to stop the annoying squealing of my brakes, I replaced my rear rotors and brake pads at my own expenses (car has 12k miles). I bought bremo rotors and ECB brake pads. When I began I noticed about a 1" ring of rust around the outside of my rear rotors. I thought alittle strange but nothing of it. Well the reason there was a 1" ring of rust is because my dealer, under direct instruction from LRNA, ground the edges off the allegedly brand new brake pads that they had installed the 1st time I brought the car in. What I thought was a truly bizarre "deglazing" abd lubrication of brand new pads became a complete grinding of the new pads so that maybe 80% of the pad contacted the rotor. Now I am beyond shocked because they intentionally reduced the capacity for the car to stop safely and correctly. This defies logic, and I cannot believe they made a conscious decision to do this. LRNA told me on the phone that, Yes they do recommend deglazing and "lubricating" the pads to stop squealing, but do not tell the techs to grind the pads down to remove an edge. I have an idea, why don't you fix the pads instead of compromising your customers’ safety. I really hope this foolishness does not result in someone being seriously hurt; I am just floored at this. I told the Rep at LRNA that I would gladly bring the parts I removed to LRNA headquarters, as it is about 12 miles from my house, to see what they are recommending their Dealerships do . Honestly, I have owned Audi's, BMW, MB as well as fords Chevy’s toyota, honda etc ...this is a first for me...Seriously pathetic...12k miles, people!!! I really hope none of you need to deal with this, but be aware of it, because it is true and it happened…
the problem is more likely the caliper than the rotor or pad.....there is a tsb for rear brake squealing when backing up and they replace the caliper mounts and bolts i think and solved my problem......you should verify whether this tsb applies to your lr4 mine is 2011, 35000 miles and still on original pads and rotos, had it checked at 25,000 and had 80% remaining in front and 90 in rear, but first 12k miles i kept my wheel and rotors really clean.....would use full strength orange degreaser from home depot and good water pressure.....same goes for my mtb and atv, dirty rotors make alot more noise than clean ones....brakes are like musical instruments all can resonate at slightly different frequencies.....you can also try having your rotor cryo-dipped which will harden it and increase its life and change its resonant frequency......whatever you do don't get one drilled with holes or slotted, solid rotors are almost always the quietest