W205.045. 2016 Airmatic Control Unit
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W205.045. 2016 Airmatic Control Unit
Hi,
I have a W205.045 AMG and have an air suspension problem, the system doesn’t wake up but works perfectly when using a diagnostic tool via the OBD, plus no ADS fault codes showing.
I’m trying to locate the airmatic control unit N51 to carry out some tests as suspecting the CAN C , most websites indicate it’s at the passenger side footwell, it’s not there, also checked drivers side, under the rear seats and in the trunk ( including trunk side walls). can anyone help?
I have a W205.045 AMG and have an air suspension problem, the system doesn’t wake up but works perfectly when using a diagnostic tool via the OBD, plus no ADS fault codes showing.
I’m trying to locate the airmatic control unit N51 to carry out some tests as suspecting the CAN C , most websites indicate it’s at the passenger side footwell, it’s not there, also checked drivers side, under the rear seats and in the trunk ( including trunk side walls). can anyone help?
Last edited by iainmac; Nov 20, 2024 at 04:12 PM.
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Hi, when opening a door, trunk or starting the ignition switch the air suspension doesn't level or rise.
My understanding is when opening a door or trunk it should rise by approx 15 mm, also the rear left strut sits slightly low if left over night, it doesn't level up. It's like the system isn't waking up or working normally; however, I can raise, level and test everything from the OBD via the diagnostic tool, everything appears normal with no fault codes.
My understanding is that X11/4 OBD port appears to access the Airmatic Control Unit (N51) directly and doesn't rely on the CAN C
I have a right hand drive, is the Airmatic Matic Control unit on the right or left?
My understanding is when opening a door or trunk it should rise by approx 15 mm, also the rear left strut sits slightly low if left over night, it doesn't level up. It's like the system isn't waking up or working normally; however, I can raise, level and test everything from the OBD via the diagnostic tool, everything appears normal with no fault codes.
My understanding is that X11/4 OBD port appears to access the Airmatic Control Unit (N51) directly and doesn't rely on the CAN C
I have a right hand drive, is the Airmatic Matic Control unit on the right or left?
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Besides CGW (Central Gateway) none of the modules is directly connected to OBD. The CGW broadcast the requests and answers for diag system.
On w205 the CGW is virtual, is included into the EZS.
If you have no cluster error messages regarding suspension, there is nothing wrong with the module or CAN network.
You can check another C Classe if raising when wake up, Maybe this courtesy is available from E Classé and above.
On w205 the CGW is virtual, is included into the EZS.
If you have no cluster error messages regarding suspension, there is nothing wrong with the module or CAN network.
You can check another C Classe if raising when wake up, Maybe this courtesy is available from E Classé and above.
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Thanks, if the left rear strut settles lower than the right (no significant/apparent leaks) what is the most likely issue? When using the OBD and special feature "level calibration" it raises level and same result if I manually calibrate I can level. once left for a period time it settles lower again and doesn't rise thereafter.
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Hi, thanks for the info on the airmatic control unit and wiring, I did find it under the passenger seat and everything as you suggested appears ok, both Flexray pins ~ 2.7 volts. I spent another half day on this and getting nowhere fast. I hoping you can guide me, here's the basic fault summary
No OBD fault codes showing
When using the diagnostics via the OBD everything works, I can check all components, deflate, inflate, manually calibrate, use the calibrate special feature and it calibrates ok.
The fault - on its own accord (without the diagnostics fitted) the system doesn't inflate at all, I've deflated all the struts via the OBD, all four strut to their lowest level. When I remove the OBD and restart the car none of the struts inflate and it's just sits at its lowest level.
The cockpit "Car Raise" button doesn't do anything either.
It's like the system isn't activating and not acting on the low vehicle level senor signals
Any ideas?
PS Do you have the full airmatic electrical schematic ? I have a couple but suspect there are for another model
Regards,
No OBD fault codes showing
When using the diagnostics via the OBD everything works, I can check all components, deflate, inflate, manually calibrate, use the calibrate special feature and it calibrates ok.
The fault - on its own accord (without the diagnostics fitted) the system doesn't inflate at all, I've deflated all the struts via the OBD, all four strut to their lowest level. When I remove the OBD and restart the car none of the struts inflate and it's just sits at its lowest level.
The cockpit "Car Raise" button doesn't do anything either.
It's like the system isn't activating and not acting on the low vehicle level senor signals
Any ideas?
PS Do you have the full airmatic electrical schematic ? I have a couple but suspect there are for another model
Regards,
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W213 All-terrain
Aurel/Launch use data base obtained form the "certified " tools and Xentry SSD's deeply installed viruses.
Every time when a very satisfied member of Chinese/great offers/certified systems connect to a car a deeply installed bot transmitting all car data and user work to Autel/Launch servers....the same as any legit western company use third party data
this is not necessary a bad idea or malicious, but in 80% of cases users of Chinese pre-installed systems has no much knowledge or experience....for example - manipulating the calibrated data without knowing about Romess tools...and Autel/Launch use this like a "special procedure".
99% of Chinese Special Functions just clone users proceedings from Chinese Xentry pre-installed systems.
Recovering the calibration data it's a must, for enabling the functions of your system.
Launch can be so Imbecile, as even if you only "read actual data" can delete the measurements from calibration data.
Every time when a very satisfied member of Chinese/great offers/certified systems connect to a car a deeply installed bot transmitting all car data and user work to Autel/Launch servers....the same as any legit western company use third party data
this is not necessary a bad idea or malicious, but in 80% of cases users of Chinese pre-installed systems has no much knowledge or experience....for example - manipulating the calibrated data without knowing about Romess tools...and Autel/Launch use this like a "special procedure".
99% of Chinese Special Functions just clone users proceedings from Chinese Xentry pre-installed systems.
Recovering the calibration data it's a must, for enabling the functions of your system.
Launch can be so Imbecile, as even if you only "read actual data" can delete the measurements from calibration data.
Last edited by trigital; Nov 22, 2024 at 05:20 AM.
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From: Spain UTC/GMT +2 hours
W213 All-terrain
Usually from a text file previously saved as Xentry instructions, but this step is normally skipped by satisfied users of pre-installed Xentry and Launch did not implement this step...or with the help of a dealer or specialized workshop.
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is this the likely problem? i’m thinking if i enter the correct option in each address then the CRC will obtain a code and configure correctly, is this right?
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I have found that under variant codes - then into parameters that there are 20 listed addresses, all were blank and the CRC shows “0x00 0x00 , each address has a drop down menu to select, i’ve tried various options in each of the 20 addresses and still end up with a CRC 0x00 ,
is this the likely problem? i’m thinking if i enter the correct option in each address then the CRC will obtain a code and configure correctly, is this right?
is this the likely problem? i’m thinking if i enter the correct option in each address then the CRC will obtain a code and configure correctly, is this right?
Do you see any 205 with this courtesy function activated?
