We report on the experimental determination of the palladium L-subshell Coster-Kronig CK transition yields via high-resolution measurements of the L 1,2 L 3 − M 4,5 and L 1 L 2 − M 4 x-ray emission lines. The L x-ray spectra were recorded by means of curved crystal spectrometers employing energy-tunable synchrotron radiation for fluorescence production. The CK yields were derived from the relative L x-ray intensity jumps at the L edges by fitting the fluorescence intensities as a function of the photon energy to the photoionization cross sections. The L x-ray intensities were corrected for solid-state effects which were estimated from the comparison of the measured and theoretical Pd L-edge x-ray-absorption spectra. Thanks to high resolution, the partial CK yield f 13 L 1 L 3 M could be extracted from the intensities of the resolved LM satellite transitions.