Edelmann power steering return hose covers are highly resistant to oil, heat and ozone which cause ordinary assemblies to fail prematurely. Tube construction withstands internal oil temperatures of up to 300 degrees Fahrenheit. Tubing is Pro-coated or terne coated and couplings and fittings are zinc-chromate plated for rust and corrosion protection.
Hydroboost uses the pressure of the Power Steering Pump to power the Brake Booster. This is denoted by a third port on the Power Steering Pump and hoses that connect the pump to a brake unit behind the master cylinder.
Installation Tips
Replace all power steering hoses at the same time, to prevent system contamination
Completely flush the system with an OE approved Power Steering Fluid prior to installation (the correct type of fluid is noted on the reservoir cap or in your owner's manual). Flushing the system is critical to prevent system contamination and failure
Install the replacement hose in reverse order of how it was removed, making sure to install any included o-rings. Lubricate the o-rings with Silicone Grease and carefully install them, to prevent damage. Make sure the hose is not touching or rubbing against any components that vibrate or give off heat
Consider installing a Power Steering Filter on the Power Steering Return Hose to prevent system contamination and extend the life of the power steering components
Installation Tips