BMW 540iA Spare Tire Sizes

The BMW 540iA has used a 5x120mm bolt pattern for all models from 1999 to 2003 along with tire diameters ranging from 25.0" to 25.7" tall. Using a temporary spare tire with a diameter close to the standard tire has many benefits, especially for modern vehicles with larger brake calipers and anti-lock brakes or traction control systems. Tire diameter as well as wheel diameter clearance have been taken into account for the specific BMW 540iA years and options. In this case, a 125/70R18 temporary spare tire is the recommendation for all applications.

YearMakeModelBolt
Pattern
Tire
Diameters
Recommended
Spare
2003BMW540iA
540iA Sport Package
5-120
5-120
25-25.7"
25.3-25.4"
125/70R18 | 24.9"
125/70R18 | 24.9"
2002BMW540iA
5-120
25-25.7"
125/70R18 | 24.9"
2001BMW540iA
5-120
25-25.7"
125/70R18 | 24.9"
2000BMW540iA
5-120
25-25.7"
125/70R18 | 24.9"
1999BMW540iA
5-120
25-25.7"
125/70R18 | 24.9"
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