Do this a couple of times and the stub screw should then start properly. Moisture will accelerate oxidation of aluminium parts e. The culprit might be the auxiliary water pump. You can use a pin and a razor blade to tease out the deposits. Inspect the wet connection as the bubbles caused by a cracked O-ring can be small and may develop very slowly. Note: observe the 'O'-ring on the connector. Slowly lower vehicle and make sure that the limp-home buffer makes contact with top of wheelhouse.
I guess it depends how long you're planning to keep the car, and what the history is like. A very strong mix of household dish washing liquid detergent and water will act as a leak detector. It will make troubleshooting your Mercedes-Benz much more easy. Your problem is definitely not the pump - if it was, it would not be sitting on just one corner. You will be surprised when you realize that the air suspension is not that complex. It may be hard to separate the filter from the rubber grommet housing.
Note: Air suspension struts on which the Air Spring Plunger 7 is separated from the Support Bearing can sometimes be filled with air again without problems. This can cause the vehicle to not maintain the ride height required. You can access it by removing the plastic cover in the wheel well. If the vehicle is low, but there is no red error message in the instrument cluster about the vehicle level being to low, the level sensor or its linkage is at fault. 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.
The suspension is switched to the hardest setting. The usual Chinese 12v car tyre air compressors will fail long before that. Then pull it smoothly and evenly downwards and press onto the support bearing. It fills up all the air struts, and it can fail. The raising sequence will then take an unusually long time. If the error code comes in pair with second selenoid valve of the strut then the problem is very likely in the connection. Leak test between compressor and valve block line between compressor and 'P' port in valve block.
The moisture is delivered back into the air when reducing the pressure. If the vehicle is lowered, solenoid valve y2 is opened and solenoid valve y1 is closed. Note: It can be difficult to get it installed correctly. There is the chance of a blown fuse for the air compressor pump. The next Figure shows the bottom air spring to damper seal open and fully seated.
Of course, there are also potential Mercedes-Benz repair problems with any wiring that has been attacked either by living or environmental forces see Photo 1. At which point, if you have found nothing - you will have to have the diagnostic done as above to find the fault. There are available piston rings with improved design. If the air suspension has collapsed, unfortunately the car will not be drivable at all. A distinction is made between a moving and a stationary vehicle. Repeat the layering process until the cavity is filled. Minor leaks can develop very slowly so be patient.
A micro torch provides a nice small sharp flame that is easily controlled as to not cause any collateral damage. There are compressor unit repair kits sold on eBay that come with new dust filters and silica gel filling. Use a small screw driver to lever the disc out. All the oil flows via the hard rebound and compression of the operating piston. At the same time the level valves of the individual wheels remain open until the desired vehicle level is reached at each front wheel and at the rear axle. Reseal both at the same time.
Moreover, the safety circuit continuously monitors the battery voltage. No air loss at at all. It will be even better if you have a , with which you will be able to carry a series of test to determine which component of the air suspension has failed. When these sensors go bad, they will generate codes C1121-C1123. A very effective method to remove the screws is to use heat from a blow torch. This is described in detail in this document that you will find here: If you accidently damage the air spring bellow covers, you can purchase new ones online without having to replace the whole strut. Your Mercedes-Benz drops to the ground and you may even end up towing your car, because it is no longer drivable.
There are that even include the fix for the control module so that you never get that air suspension warning message again. If the filter gets clogged, it can dramatically impact the life and efficiency of the air suspension compressor. Do not separate control rod 85 or change the adjustment. For these Mercedes repairs, pull a spark plug to get an idea of its condition, looking for obviously worn plugs. The indicator lamp 1 is on. The newer models and ones with new replacement parts do not leak. With the downward movement of the piston, the air passes through the inlet valve e in the piston crown into the clearance volume.
Then pull it fully downwards and press it onto the conical support bearing. If you are lucky the old strut will pretty much fall out, especially if it has collapsed. Top bushing: new left vs old right. Oil is displaced via the reed valve packs p and the oil duct located diagonally opposite in the casing. The water in the air actually absorbs between the tiny passages as the air passes through them. The wheel where you see the car lowered the most, is typically the air strut that may be leaking.