The cylinder is sealed with a ring made of phenolic resin or a similar material. It is a common fault for the valve block to fail open. I suspected the compressor is bad because there is no air pumped can not hear any pumping into any strut. Wake-up function operating period approx. While these highly advanced systems offer the luxurious quality ride that Mercedes are known for, when they fail, many people have sticker shock when they visit the Mercedes dealer. The vehicle level at the front axle is considered to be critical, for instance, if the full wheel angle can no longer be guaranteed. If the control module is woken for example by opening one of the doors , there follows a period of spare time before the driver actually starts the engine during which the vehicle level is corrected.
The compressor has a fixed piston that tilts in the cylinder. On the opposite side is the central reservoir which stores air pressure for use when the pump is not running. Pressure in the main reservoir is used to raise the stationary vehicle. The raising sequence will then take an unusually long time. If test shows that reservoir cannot keep the pressure, before replacing it, check with leak detector solution to test if the line to reservoir is faulty.
This will cause a message in the instrument panel to come on and the suspension to go into a safe mode to minimize compressor run-time. I've got 145k on my W211, so a new compressor isn't going to be the end of the world. Qualification for membership is for owners of such cars and true enthusiasm for the marque. These cars want to be used! As soon as the required vehicle level is reached at a front wheel, the respective level valve y1 or y2 closes, the other valve still remains open until the same vehicle level has also been adjusted at the other wheel. The next Figure shows the bottom air spring to damper seal open and fully seated. Design of Air Suspension Spring Struts 40, 41 A single-tube gas-filled damper unit or shock absorber is integrated into the air spring strut. It appeared that the cable on the connector for the selenoid valve responsible for discharging unwanted air was snapped.
Minor leaks can develop very slowly so be patient. Would this be the correct size? In Case of Warranty, use the table. In some cases, the compressor will be damaged from the constant running. It is best to paint the solution on rather than spray it which creates heaps of unnecessary bubbles. Top bushing: new left vs old right. It works by a process called adsorption. Insist they do to reset them.
The soft rubber material that can be seen through the hole in the top on the strut towers can develop cracks. The older design can leak air over time. Strut with stub screws partially unscrewed. Residual pressure holding valve removed. In summary, press the bellows upwards towards the top to remove any crinkles. It's a little too noisy where I am to listen for any hissing, but I will have the use of a ramp and garage next week.
This is what is always open in mine hence the compressor is over working it self as the sensors picking up that there is not enough air in my suspension. The selected suspension style is stored in memory, even after the SmartKey is removed from the starter switch. Note: Several people have reported difficult screw removal resulting in several broken hex wrenches, frustration or even stripped set screws that had to be drilled out. C1325-001 Fault in component Y53y2 Left rear solenoid valve 2 in assembly Y53 left rear axle damping valve unit See above. After getting quotes from local Merc Specialists I was quoted over £1000+. Before replacing the strut, the leak should be verified by directly pumping the air to the strut and observing if the strut loses the air.
Considerable cost can be saved these days by not using Mercedes branded parts. If the leak is severe, a hissing sound can be heard from the wheel house area. More specifically you have a ride height issue. The compressor unit is mounted to a mounting plate h. Just be careful to not round the hex head. Then screw a stub screw into the 'good' side and keep screwing it all the way through until it comes out the far side, and in the process reshaping the mangled thread.
Alternative line can be run from front valve block to the rear to test if the line is faulty. After getting it on Star - a sensor was complaining but was operating as it should. The damping force levels are achieved by means of the differently positioned reed valve packs and controlling the solenoid valves. The raised level switch position is indicated by the red indicator lamp 1 in the switch. The suspension is switched to the hardest setting. Car is lower than before and will not rise at start up.
If you have a leak in this older style front strut there is a kit you can buy to fix the leak top seal repair kit A2203202538, see below. This helps with reassembly to ensure the larger solenoid o-rings do not get damaged or misaligned when putting back together. A very strong mix of household dish washing liquid detergent and water will act as a leak detector. The roll-up zone on the air spring strut is sealed off from the outside by a rubber protective boot or bellows n as a protection against dirt. Air Spring of the rear strut. If you are lucky the old strut will pretty much fall out, especially if it has collapsed. Seals and pumps will wear, and struts will have to be replaced.