Perhaps the compressor was badly repaired. It is necessary to check whether it injects the necessary pressure. Also need to check the correctness of the connections. For example, they could simply forgot to connect the pneumoline, going from the cylinder to the swap wheels. When dismantling the compressor, they disconnect it. After installing the compressor in place, they could forget to connect them and all the air comes out of the system.
Where is the compressor fuse located in ML 63 AMG W164 body?
Under the hood on the left there is a box of relays and fuses. There are two large 40 amp fuses, one of which is an air suspension compressor fuse.
Do I need to maintain air suspension on the VW Touareg?
It is necessary to maintain the air suspension compressor. The dryer must be changed once a year, the compressor relay must be changed every four years. If the gearboxes on the air suspension are not strongly oxidized, then you can periodically flush them from dirt, especially the front ones, as they stand at an angle, and there is a niche in which dirt accumulates. Over time, gearboxes start to rot. If you regularly wash them from dirt, the gearboxes will last longer.
The reducer (choke) is located on the top of air suspension, where the pneumoline is connected. If you have never washed it before, it’s most likely has been oxidized there, and now it’s better not to rinse, but to drive until it falls off. Because if the gearbox has already rotted, moldy, and all dirt will be washed, it can immediately fall off. After replacement, you need to periodically wash it.
Does not raise air suspension in 4th position on Allroad?
Most likely there’s a problem with a pneumatic compressor.
How to determine the condition of the suspension compressor in the Land Rover / Range Rover?
The first thing you can do is to connect a monometer to the compressor and start the compressor by applying a voltage of 12 volts to it, to check how much pressure it creates. At the same time, you can check the suspension compressor for leaks at the joints with suspension lines and the dryer with the help of a soap mix.
In Land Rover/Range Rover Sport, Land Rover Discovery and Range Rover cars, they install Hitachi suspension compressor and in Land Rover Vogue – a Wabco compressor is installed. In Hitachi compressors, the dehydrator cover often breaks, so part of the air comes out of the suspension system and the necessary pressure is not created in a result of that. The problem is solved by replacing the cover of the dryer. You can order the original cover, and you can install a more reliable thickened cover on the service station.
How to check the air suspension valve block in Audi Allroad A6C5?
The simplest thing you can do is just try to raise or lower the air suspension of the car. If the car rises and falls normally, then everything is fine with the valve block.
Leakage in the valve blocks is extremely rare, they rarely lose air, because they are very reliable. But you can check it out this way: without removing the valve block, it is necessary to disconnect the suspension line, which connects the compressor to the valve block,disconnect it from the compressor. Then insert it into a container with water and see if air bubbles have appeared. The remaining suspension lines that come out of the valve block can be doused with soapy water and see if the bubbles are coming or this soapy water is foaming.
To check the electrical component of the valve block, you need to remove the chip, put a separate chip with wires and send signals to certain contacts. But it is better to diagnose the valve block, after removing it from the car. At the service station, such a check is performed under air pressure. Each valve is individually energized, suspension lines are connected, pressure is injected and it is checked whether the valves open or not, and whether air passes through them.
If the car is twisted, the suspension does not move either up or down, some side falls and rises and the other does not, most likely the valve block has stuck. Maybe oil or «Antiprocol» hit there. This happens quite often. For example, the oil from the shock absorbers gets into the suspension system and then into the valve block, settles on the elastic bands, then they collapse and the valves begin to wedge.
How to check air suspension on the Range Rover?
Land Rover Vogue / Land Rover Range Rover air suspensions in any case need to be poured with soapy water at the bend at the very bottom of the suspension where the rubber rolls onto the piston and see if bubbles appear. If possible, you should also check for leaks using a soap solution through pneumatic lines, which are connected to the suspension. Of course, full diagnostics and testing of the air suspension can be done at the service station.
At the service station, there is an opportunity to exclude the entire pneumatic system by disconnecting the pneumoline from the suspension which being diagnosed, connect to an external system, pump it up and leave, for example, overnight. Before this, of course, the height is measured. If, in the morning, car has «fell down», then definitely there’s problem in the suspension. If the position of the air suspension remains unchanged, then the problem is somewhere in the system.
The danger of using «Antiprocol» for the repair of Audi A6C5 air suspension
The only thing that can be recommended in the case when the rear air suspension lose air – do not pour «Antiprocol» into them, because it can get into the valve block of the pneumatic system, which is installed behind the car.
The air through the valve block enters the air suspension when the suspension is raised (air is forced), and when lowering, the air from the suspension leaves the system through the valve block. In AudiAllroad cars, air inlet in the rear air suspension is located at the bottom. If the «Antiprocol» got into the air suspension, then when the suspension is lowered, it falls into the air suspension line, and through them into the valve block. This causes the valve block to fail.
The problem is solved by replacing the valve block either with a new one or with a used one. Price when replacing with the used valve block is approximately 100 dollars. New one – around 250 dollars. Of course, it is always recommended to buy a new one, because duration of his work will be longer. But it is worth considering that the smallest oil hit in the valve block or the same «Antiprocol» issue, can cause it to fail.
Antiprokol is generally used for quick repair of the tire. It is a jellylike substance that fills all the microcracks in both the tire and the air suspension, which is always in a liquid state. If there is any air leakage, «Antiprocol» eliminates it.
Oil can also get into the valve block, which can damage it. This happens when the shock absorbers leak.
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