Before you purchased the car someone may have tracked it hard.
Common problem with a poor cool down lap.

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94 530i sold (That was difficult for me)
01 530i >144,500+ miles SOLD
06 330XI winter's especially fun drive (SOLD)
10 M3 Sedan (sweet)
13 Nissan GT-R Black Edition
13 Porsche Cayenne Diesel

BMWCCA 4215