Can you check the individual wheel speeds with your scanner? If one is out of tolerance, it usually throws a code. If your speedometer is working it's not your LR. I'd suggest moving that spare to another corner if it's the one out of spec and see what happens. You can also measure the circumference of the tire to see how closely they match.

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2001 x5 3.0 (sold with broken motor), 1990 e30 M3, 1991 318is, 2002 325i, 2008 335i Dinan stage 3 6 speed,