WARNING: This page is about a different car, the 2003 BMW X5 and 2002 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE BLOCK SPECIFICATION
Bore dia. a)
mm
84.000 +0.014
Permitted out-of-round of cylinder bore a)
mm
0.007
Permissible total wear tolerance between piston and cylinder (engine operated)