2 SAMPLE AND DATA

3 RESULTS

3.1 BCG X-ray and mass scaling relations

3.2 The effect of BCG mass on the $L_{X}-T_{X}$ relation

3.3 Dynamical state of the cluster

3.4 Radio-loud BCGs

4 DISCUSSION

4.1 BCG AGN energy input into ICM

4.2 Time averaged effect of AGN

4.3 Instantaneous effect of AGN

5 SUMMARY