Do I need to reinstall SQL 2008 Service Pack 4

I installed SQL Server 2008 on my server, with the features that I required.  I then installed Service Pack 4 and also installed any important SQL updates, that have been released since SP4.

I have since had to add an additional feature to the installation - the 'Management Tools - Complete' feature.  This is because I was unable to modify Maintenance Plans, using SQL Server Management Studio, on the server.

Do I now need to reinstall SQL 2008 Service Pack 4 and the subsequent SQL updates, on my SQL Server?

Thanks.