Mercedes Benz GL450 How to Replace Air Suspension Valve Block | Step-by-Step Guide
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- Опубліковано 30 вер 2024
- In this video I'll show you how to replace the air suspension valve block on your Mercedes.
Tools Required: Floor jack, Jack stand, Wheel chocks, Tire lug wrench, 10mm - wrench, 12mm - wrench, 10mm - socket and ratchet, 8mm - socket, T25 - socket, panel clip remover. Hope you have found this helpful! When replacing Air Suspension (AIRBAG), Air Suspension Valve Block or Air Suspension Compressors necessary to elevate vehicle of the the ground to help bags inflate. Elevate vehicle and start pumping before bringing vehicle to the ground.
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Great video! He does not tal, but videos are self explanatory. He does his work with finess. Thank you.
It's heartwarming to receive such positive feedback !!
Omg! Great video Mike. Where can I make a donation at?
Aw! Thanks a million. I’m heartened by what you’ve said.
This is of great importance to us. But our channel has not yet been monetized on UA-cam. Sorry !! We will fix it asap.
My car is a gl500, the rear suspension is completely down and the front suspension is good. Is it possible that this valve is the cause and how can I be sure?
Well is the compressor running because if it is then the next two thing I would if you suspect is the valve block is you can loosen one of the lines at that lead to the rear and if no air pushes out( given if the compressor is working as intended) then that would confirm the valve block is bad. However you need to confirm the compressor is good and running (sometimes when the compressor is working to long typically would blow a fuse 40a). If that is all good and air is pumping then I would suspect that the air springs in the rear are defective. I’ve seen them leak as early as 5years to 10 years. That’s their typical life expectancy. Let me know if that answers your question or if you have and other questions.
@@maksimus-129 👍
thanks for the video, i have a question, why my mercedes gl450 release some air from the suspension intermittenly??
That depends.. when does it happen
It's just releasing build up pressure
Check that you don’t have any leaks start from the lines and move your way to the valve block.
Mercedes
Great video very informative 😊
We all put in a lot of effort; thank you for acknowledging our hard work !!
Thx Mike. Appreciate the response.. I also suppose you did not have to re calibrate. Looks like you just replaced the shocks and the.valve. Yes its true my compressor does not run all the time. Just when I start the car.
Disconnect the fuse from the compressor?
Make sure the fuse is removed before uninstall. If you haven’t seen it yet, watch this video. Mercedes GL 450 How to Replace Air Suspension Compressor Fuse, Step-by-Step Guide
Video link: ua-cam.com/video/RMzJnblPUE4/v-deo.html
Why didn’t you use the new Mercedes fittings? Just cut the line , light sand to round and re-insert? The advantage would be you would have new gaskets all around? I’d like to know. I’m about to do this job. If you bought cheap one from Amazon I could understand why you would re-use the fittings.
I always try to keep original parts whenever possible.
Thank you for your question.
Actually you do not need to cut the lines at all. What you should actually do is push the nut higher up the line and will expose the keepers. Break those off as the valve block will have new nuts installed as seen in video. Once you remove the keepers and nuts it’s just push to connect no cutting necessary!
But when you remove the old fittings the plastic tube that is left is no longer nice and flat. It is gauged from the old fitting. so that is why I’d cut the end off and lightly sand. Make sense?
@@mespartacusyeah that definitely makes sense! I typically have never really gouged it. But sanding it doesn’t hurt especially if the end of the fitting is not flush. But usually what I have ran in to usually is still flush.
Mike.. would you be able to let me know what the symptoms were of a bad valve? My car rear drops if I keep it parked for some time. Both wheels however at the same time.
My son is a certified mechanic, sending you his answer.
If both sides are down that would be a sign of the air struts being defective. The valve being defective would typically cause a fuse to blow because it’s going to over work the compressor. Usually when air struts are starting to leak it’s usually a good time to replace valve block and compressor in conjunction of the air springs but it’s not mandatory( typically air struts, then compressor w/ valve block). Hopefully that answers your question!
Next Sunday I will post a video on how to change an air compressor and suspension air compressor filter.
Here are a few videos you may find interesting:
Mercedes Benz GL450 How to Replace Rear Air Suspension, Step-by-Step Guide Video link ua-cam.com/video/Lu57BjQjFKw/v-deo.html
Mercedes GL 450 How to Replace Air Suspension Compressor Fuse, Step-by-Step Guide Video link
ua-cam.com/video/RMzJnblPUE4/v-deo.html
@michaelkoren56 my mercedez when star my car compresor no stop working
It does make sense. Both can be true and the air springs can be checked for leaking by spraying them with soapy water while they are aired up
Thank you for showing us how to replace part that does work well. However, I have watched how to change air suspension compressor and valve block,
my question about how do I know the problem from compressor or from valve block while front a car does not getup when I had malfunction message on dashboard and before do it that I heard air release sound when I parked the car and switched off engine.
That's a good question. In the morning I will pass your question to my step son.
The release you may hear after a drive cycle can be normal. As far as whether it’s the compressor or valve block though it’s hard to say. Replacing the compressor and valve block in conjunction is what is recommended. However starting with the compressor is usually is the best bet and make sure to replace the 40amp fuse if it’s not blown already. Then if that’s all good but you still have issues move to the valve block.
@@maksimus-129… thanks for your reply … should I change 40amp fuse before compressor or opposite.
@@mostafaelkazmi686
Make sure the fuse is removed before uninstall. If you haven’t seen it yet, watch this video. Mercedes GL 450 How to Replace Air Suspension Compressor Fuse
Video link: ua-cam.com/video/RMzJnblPUE4/v-deo.html
@@mostafaelkazmi686 when you replace the compressor check the fuse if it is blown then replace it don’t replace it before as it will blow again
No recalibrate needed?
Just start the car and let it run. The Valve Block Suspension Control Sensor will do its job.