You can enter original number of detail either with spaces or without them.
 

How to know the number of detail?
There are different ways, you can choose appropriate for you:

1) Use our BMW Parts Catalog
2) To find number of detail in on-line catalogue of original auto spare parts.
3) To call to the shop which sells original spare parts, e.g. – yours auto dealers’ centre.
4) To see old number of detail if you have it.
5) To ask friend for help.