100 psi
1200
Yes, the ignition switch must be in the ignition position -not- the accessory position.
Low brake bressure can be caused by a worn accumulator, poor pump performance, a bypassing brake booster or an inaccurate pressure sensor. To test your brake accumulator, turn the key to the on position and pump the brake pedal. A properly functioning accumulator will give you 25-30 brake applications before the low brake pressure light illuminates
While the ignition is in the ON position, follow this sequence:Turn your headlights to the parking position and then OFF 3x's.
Check the check valve located at the inlet of the fuel pump for leaks. It sounds like the fuel accumulator has failed. get under car , remove fuel pukp and accumulator assembly. Remove fuel accumulator, drain unit. Shake unit, if it has fuel inside it has an internal leak and must be replaced. The engine heatsoak causes fuel to boil, the accumulator maintains pressure to prevent this issue.
The accumulator stores brake fluid under very high pressure. An electric pump keeps the accumulator pressurized with brake fluid. When you press the brake pedal, pressurized fluid from the accumulator operates the brakes.
A brake accumulator is a device that holds brake fluid at a very high pressure. It is an important part of a proper brake system.
at the accumulator
pressure switch located on the accumulator
A hydraulic accumulator contains a bladder filled with a compressible gas, usually nitrogen. The pressure of the gas in the bladder is known as the pre-charge, and will vary based on the ambient temperature. Hydraulic oil is pumped into the accumulator but outside of the bladder. As the oil is pumped in, the bladder compresses, which exerts a force on the oil. There is usually an pressure transducer in the system which will signal the hydraulic pump to turn off when a certain oil pressure is reached in the accumulator. A hydraulic accumulator can have several uses. It can be used to store hydraulic pressure for later use. It can be also used as a type of "shock absorber" for hydraulic systems.
3000 PSI
Its on the a/c accumulator..............
the mercedes dealer ship:P