Accumulator

The accumulator stores a reserve of 62 bar pressure for the suspension and steering. Without it the hydraulic pump will continually try to keep up with pressure demand, which it can't do. This is not good for the pump and makes steering and suspension unresponsive and unsafe. The accumulator is similar to a suspension sphere as it has a diaphragm with nitrogen gas under pressure but without a damper valve. It screws onto the pressure regulator which cuts in and out according to demand. Replacing the accumulator is 10 steps back but well worth doing. Removal of the complete unit is required to unscrew the accumulator along with some other equipment, battery alternator etc.

Regulator and accumulator removed from car.

Here's a handy tool I made to remove spheres.
Needed a 5 foot long jack handle on the end as well!

New seals wetted with LHM.

Complete unit again ready for refitting.

Back on the car with new pipe seals and obligatory yellow paint marks.