load reduction relay ??

528e 86' auto trans
Need info on and to find 'Bosch 0 332 014 454' ; four prong relay???

Fuse box says 'relief relay'......workbook says 'load reduction relay'......what is it and where can I get 'exact' replacement?......thanks for any info.

BTW- how do I test to see if it is still working???.... (if can find another; looks faded maybe gray/light blue in color, also looks 'scorched' on terminals; searching for 'short' in system ).

Same relay as # 0332-019-451. Standard run of the mill 4 pin relay. To test supply power and ground to terminals #85 and 86. You should hear a distinct click. Now test continuity between 87 and 30, you should have continuity now. Hope that helps