Andy,
The drums are inside the disk rotors and as far as I know the rotors must be removed to clean them. When my EPB started squealing for the second time I took it straight to Rovertech and they found the drums full of mud, which would have been dust that got wet during a water crossing in Albany behind Muttonbird Beach. They cleaned it and it has been fine since with multiple uses on a daily basis.
Bob
2010 D4 3.0TDV6 SE, ediff, LLAMS, 5 x GOE wheels, LT285/60R18 BFG K02's, GOE Compressor Guard, LR Tank, Mitch Hitch, ECB Bull Bar, Kaymar Rear Bar, Traxide, Safari Snorkel.
2019 Discovery 5 SD6 SE, 20 inch wheels, 275/55R20 Nitto Grappler G2 tyres
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