E46 series BMW 3

since 1998 of release

Repair and car operation

Measurement of thickness of a brake disk

CHECK

1 Mark paint the provision of wheels concerning a nave. It will allow to establish an otbalansirovanny wheel in the former situation. Weaken bolts of fastening of a wheel on the car standing on the earth. Lift a forward part of the car, establish it on supports and remove wheels.

It is necessary to measure thickness of a brake disk in the thinnest place.

2 Measure thickness of a disk. HUNDRED apply for this purpose special calibre or a micrometer as in the course of wear of a disk the fillet is formed. It is possible to measure thickness of a disk by means of a usual calliper. For this purpose it is necessary to put on each party of a disk a lining of a certain thickness (for example, two coins). Then from the value received as a result of measurement it is necessary to subtract thickness of two coins. Attention: measurement is necessary for making in several points.

3 Sizes of a brake disk are specified in Specifications.
4 If the received thickness less than minimum established value, it is necessary to replace a brake disk, address to appropriate section.
5 If brake disks were pierced till their minimum thickness, it is possible to establish a set of brake shoes once again.
6 in the presence of cracks or задиров it is necessary to replace brake disks.
7 Establish to the place of a wheel so that the markings put at removal coincided. Previously grease with a thin layer of bearing greasing aligning belt of a disk of a wheel on a nave. Bolts of fastening of a wheel do not grease. Rusty bolts replace. Wrap bolts. Lower the car on wheels and tighten bolts cross-wise the moment of 100 N • m.