Mercedes W164 Airmatic suspension problem, error 5505. Fault finding and repair.

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Hi
Among with other problems, this ML320 came to me with an issue with the Airmatic suspension.
The compressor would not stop running, indicating a possible leak, on the module, the fault 5505
Follow me on this video to find out what was the problem and how to resolve it.
Hope you enjoy the video.
Any questions or comments put them below.
Like always, thank you for watching!

[@VladoT]

Thank you very much! I scratched my head 2 days with this problem, I even rebuilt the compressor but unfortunately I didn't think that there would be a hairline crack in the housing.

[@LMAutoRepairs]

😊 👍👍👍

[@croatiabj3039]

Hello, you should also replace the Relais for the compressor. The green one in the engine Relaisbox. The Contacts can be demaged from the actuation cycles to the compressor. You can open it an check. In the most cases (more then 80%) the contacts are damaged. You will see spark marks on it. After a short time their weld together and the compressor pump to die. You make great videos. I enjoy your videos. All bests.

[@LMAutoRepairs]

As I mentioned the problem with the relay board I have repaired some time before, the relay had been replaced by the owner prior to bring me the board to repair... should have mentioned that... my bad...😊 Thank you for watching and for your comment! 👍👍👍

[@HelderPutoPerformance]

Thanks to fix my car Luis that car was a pain to me Very much appreciated you fix it for me 😊

[@LMAutoRepairs]

😊 Not a problem! 👍👍👍

[@normanstephens5391]

Hi. Once again you went "Above and Beyond the call of Duty" To solve this this problem. Excellent and informative video, as usual 👏 See you in the next one. 👍👌✔

[@LMAutoRepairs]

😊 Thanks! 👍👍👍

[@TDIPOWER2209]

Good patience u have but most important its the patient of the customer. Some of them dont have the patience and understanding.

[@LMAutoRepairs]

Indeed... 👍👍👍

[@mikimehandziski1045]

Excellent as always! Thanks for the patience you have and explain everything step by step. I am enjoying every video you made. 👌

[@LMAutoRepairs]

😊 Thanks! 👍👍

[@beluxauto5968]

This was again a nice video . I have fixed every imaginable problem on the airmatic system but mostly I have swapped compressors . People tend to drive with leaking shocks and the compressor works overtime and gets too hot . That´s why you have those hair cracks in that plastic housing . Imagine the pressure it has to build up . The seized up linkages also didn´t help . I have the weird feeling that this car wasn´t used as a daily driver . But again Luis you did a thorough job . Thanks for the upload .

[@LMAutoRepairs]

Makes sense...😉 Thank you for watching and for your comment! 👍👍👍

[@thomasrose6962]

The compressors are actually a high quality unit But no oiless compressor can run continuously ( ie Large leak)

[@AddictedtoProjects]

Thanks a million for making this video. Great quality as always! :D I've just done the airbags in the back of my W212 Estate. It has 94000 miles, and it was getting to the point where it would squat down overnight. Haven't done the calibration yet, but I think thanks to your video and explanation, I def need to do that too. As even after changing the airbags, it's still not 100% back at the same level it used to be. Still sitting a little wonky in the back :)

[@LMAutoRepairs]

😊 👍👍👍

[@neilmurphy845]

I love that old diesel sound

[@LMAutoRepairs]

😊

[@maxinrique2706]

Thanks 🙏 for explaining step by step

[@LMAutoRepairs]

😊 Thank you for watching! 👍👍👍

[@fir3w4lk3r]

Nice! He must be a really good friend. The tank had adequate fuel! :D :D :D

[@LMAutoRepairs]

🤣🤣🤣 👍👍👍

[@mindbodyandsoul81]

Hey buddy , I'm glad I found this video maybe you can tell me what my issue is. So occasionally from time to time when I shut off my ML my air compressor won't shut off it will still run. The only way I can get it to turn off is to start up and raise all the way the lower it. Then it will shut off . my level is normal no sagging

[@LMAutoRepairs]

Hi Have you scanned the car for fault codes? It is difficult if not impossible to pinpoint based on your description of the problem alone... 👍👍👍

[@HelderPutoPerformance]

I will never finding that crack thank you 🙏

[@LMAutoRepairs]

😊 I am good at finding cracks...😋🤔 🤣🤣🤣🤣 👍👍👍

[@nemanjadzombic6101]

Thank you for another great video!!!

[@LMAutoRepairs]

Thanks!

[@mrgrumpy5116]

pressure stress cracking, you get the same on pressure washing equipment, it will fail again, replacement seems to be the only solution, anyhow you found the problem, soapy water would have shown it straight away, well done, good try but a fix is usually just a test fix.

[@LMAutoRepairs]

True...😊 Thanks! 👍👍👍

[@williambyast7791]

Has the New pump lasted!

[@electronic7979]

Nice repair video 👍

[@LMAutoRepairs]

Thanks!

[@iankelly2110]

Well done loads of work on this ml

[@LMAutoRepairs]

Indeed... Was not being very well looked after... 👍👍👍

[@thomasrose6962]

Initial startup is for when the airmaticMODULE is replaced

[@LMAutoRepairs]

Correct...

[@rabiebelaggoune3763]

Yeah, this owner has make a good deal

[@LMAutoRepairs]

👍👍👍

[@mohmedahmed-vw2us]

Good work Do more and more Thinks again

[@LMAutoRepairs]

😊 👍👍👍

[@Stoney3K]

My guess is the corroded levers caused the car to keep trying to level with an incorrect reading, and the compressor running forever into a system that is already at its limit, causing it to blow the hose.

[@LMAutoRepairs]

A very plausible possibility! 👍

[@neilmurphy845]

That 3rd party pump won't last like most eBay specials would be my guess you get what you pay for always go OEM either used or brand new.

[@LMAutoRepairs]

Totally agree... 👍👍👍👍

[@neilmurphy845]

@@LMAutoRepairs It'll be back to you in a few months or years

[@LMAutoRepairs]

😊 😋

[@neilmurphy845]

That just makes me laugh 😅 when you pressed F5 and it went down

[@LMAutoRepairs]

😊😋

[@jitheeshpulikkal4540]

Hello sir i want to learn car electronics repair can u give me any link that will help me

[@cosme112002]

I’m getting a “vehicle rising please wait” message on the dash. I wait and nothing happens the vehicle doesn’t rise and I feel like I don’t hear anything from the compressor only the reservoir. I press the rise button and still the car doesn’t move. I can clear the message on the dash by pressing OK and I won’t get the message again until I turn the car off and back on… then the vehicle rising message appears again.. any ideas? I’ve replaced a strut in the front and fuses and relays only. 😢

[@LMAutoRepairs]

Difficult to say... Is the car at the correct level? Have you scanned the car to see if there is any trouble codes? That seems lime the car is trying to get to a certain level, but something is preventing it from happening... 👍👍👍

[@cosme112002]

@@LMAutoRepairs I didn’t hear the compressor so just replaced it with one off Amazon. Once I turned the cat on it lifted right up. So far so good

[@LMAutoRepairs]

@@cosme112002 🤞 👍👍👍

[@BJ04500]

Thank you for this good video. Can you tell me how to test the operation of the solenoid valve? Thank you A9/1y1 who controls the pressure

[@MarinChanev]

Great video. It's very informative. Can you share what kind lubricant is suitable for the sensors levers. Thank you in advance.

[@LMAutoRepairs]

Hi I used silicon grease... Thank you for watching!

[@wires4auto]

Great video 😊 thanks. Your videos are awesome and you should be sponsored by autel🤑🤑 New pump problem solved 😬 👍 you could do with a good garage to work in.

[@LMAutoRepairs]

I definitely could... with both! Thank you for watching and for your comment! 👍👍👍

[@jeffd9133]

I dont know where this guy comes from, but This video hurts me to look at

[@LMAutoRepairs]

Don't look then... 👍👍👍

[@kaibintech]

Great video! Subscribed.

[@LMAutoRepairs]

😊 Thanks! 👍👍👍

[@klamka82031]

Very good job 😉

[@LMAutoRepairs]

Thanks! 👍👍

[@richbayley7246]

Hi, very informative piece and looks like a similar problem to my car, mine doesn’t have a pipe connected to the silver tube that comes out the front, is this normal (the one you show as perished? Regards Rich

[@LMAutoRepairs]

Hi That is where the clean air is sucked in... The end on the pipe stays hidden so to prevent the pump from sucking dust and rubbish... If yours is not there, you either have a filter or a different system, or yours is missing... wich might have caused the pump to fail... 👍👍👍

[@richbayley7246]

Ok thanks for the info I’ll check it when i get back to it.

[@naeemn45]

Great work as usual. Got a question about Renault's. How do you separate the uch PCB board from each other. Same for the TCU computer. The pins don't seem to be soldered. But they don't separate. Can you provide some guidance? Thanks

[@LMAutoRepairs]

Just gentle push/pull them out... It is tricky, but possible to do... Thank you for watching!

[@hadijahed3836]

very good

[@LMAutoRepairs]

👍👍👍

[@deep4730]

Where are you based..Got a hvac issue a4 b8.5

[@Theag393]

Thank you very much for another video. Do you have a professional contact for jobs? Best regards

[@LMAutoRepairs]

Not really... This is a part time for me... Thank you for watching and for your comment! 👍👍👍

[@nantuck3]

hi helpful vid, mine has same 5505 code, are the calibration values you show for the vehicle at normal ride hieght and can you remember the measurement between the wheel center and wheel arch cheers

[@LMAutoRepairs]

Yes... normal ride... Can't remember the measurements now... Thank you for watching!

[@nantuck3]

@@LMAutoRepairs cheers for that I've got to get mine in the workshop Saturday to do this repair

[@LMAutoRepairs]

👍👍👍

[@rhiantaylor3446]

At 16 bar or 235 psi, glue didn't stand much of a chance. Nice try though !

[@LMAutoRepairs]

😊 I know... Was actually a sort of resin... but I had it for so long that was probably expired...😋 👍👍👍

[@pedroneves8288]

Another great video! Could the different tyre pressures affect the level sensors, as well?

[@LMAutoRepairs]

A tiny bit..yes... Thank you for watching! 👍👍👍

[@thomasrose6962]

Tire pressure will not affect the level sensors cmon think about it!

[@LMAutoRepairs]

Wrong... Does not affect the sensor directly... what he meant was the level itself... which obviously will do affect the level of the car...

[@pedroneves8288]

@@thomasrose6962 Since I'm not a mechanic I have no idea! Just wondering! But it's good to know that there's no real connection. Anyway, I've always thought that self leveling suspension posed an extra stress on the tyres. So I always thought that a correct tyre pressure on a car like this would be of paramount importance.

[@pedroneves8288]

@@LMAutoRepairs Luís, I answered Thomas comment before reading yours!... Gmail/KZbin issues...

[@thomasrose6962]

Slow down the process ?

[@LMAutoRepairs]

🤔 Not sure i understand your comment...

[@neilmurphy845]

My guess is a level sencor.

[@starboyl2548]

my w166 left and right were uneven after calibration

[@LMAutoRepairs]

Check live data... Make sure the calibration is being done on a flat surface... 👍👍

[@niksimic5965]

👍👍👍👍

[@LMAutoRepairs]

😊 👍👍👍

[@danhayes3546]

⭐️⭐️⭐️⭐️⭐️

[@LMAutoRepairs]

😊 👍👍👍

[@gzimirushiti9085]

I have 5508 erorr

[@thomasrose6962]

Thr

[@mr.mr400]

Maybe it wasn't level because the crooked link