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Took delivery of our 2012 coming up on a week ago.
Before we bought it, it had sat on the lot for approximately 4 months.
It appears that as part of the certification it did receive new brake pads front and rear, but I noticed at pickup that the rear rotors showed abnormal contact patches.
Having put 500 Kilometers+ on the car now (over 300 miles) these are the wear patterns we are seeing now. Passenger side rear rotor first, drivers side second.
It seems to me that the calipers are partially seized, as despite the rust and such on the rotor from sitting on the lot for several months, after 500K (and enough friction vs regen braking) I'd expect to see nice clean contact patches now.
Thoughts? We have a short term warranty and will be getting this addressed, but if it's a somewhat common issue then I'll have some more talking points. Seem to me that the only way to address this is to replace the calipers, knowing what I know about what happens when they start to seize up.
Before we bought it, it had sat on the lot for approximately 4 months.
It appears that as part of the certification it did receive new brake pads front and rear, but I noticed at pickup that the rear rotors showed abnormal contact patches.
Having put 500 Kilometers+ on the car now (over 300 miles) these are the wear patterns we are seeing now. Passenger side rear rotor first, drivers side second.


It seems to me that the calipers are partially seized, as despite the rust and such on the rotor from sitting on the lot for several months, after 500K (and enough friction vs regen braking) I'd expect to see nice clean contact patches now.
Thoughts? We have a short term warranty and will be getting this addressed, but if it's a somewhat common issue then I'll have some more talking points. Seem to me that the only way to address this is to replace the calipers, knowing what I know about what happens when they start to seize up.