Remove the retainer (1 and 2, Fig. 5.160) in the direction indicated by the arrows and disconnect the hoses.
Check the sealing rings round section (1, Fig. 5.161), when installing them, do not apply any lubricant to facilitate sliding. The rings must be clean and dry.
Installation of quick-acting couplings should be carried out in the reverse order, and it is necessary to press the locking device before installing them (1, see Fig. 5.160) and push the hose all the way in. The quick-release coupling should lock into place with a clearly audible click.
[Original publication posted on the website BMWMAN.ru]