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Air suspension problems

2K views 6 replies 3 participants last post by  pinajarro4x4  
#1 ·
Good afternoon everyone.
I am writing to you from Spain, to see if you can lend me a hand.
I have changed the front sensor, and I have managed to get rid of the error 01769 that vagcom gave me.
But I still have problems, once I changed the sensor, now it gives me the following error:
Control Module Part Number: 7L0 907 553 G
Component and/or Version: LUFTFDR.-CDC- 3C3P1 3112
Software Coding: 0015521
Work Shop Code: WSC 31414 790 00001
VCID: 377B5D8742CF56A6659-8062
1 Fault Found:
01780 - Sensor for Vehicle Leveling
003 - Mechanical Failure - Intermittent

From what I have read, it may be one of the spring valves, but I think it will be because I have not been able to calibrate the suspension after changing the sensor, let me explain, it lets me enter all the values of each one of the wheels, but when it's time to record those values, on channel 05, it gives me an error and doesn't let me, specifically it says,
ERROR CHANNEL 5 NOT AVAILABLE.

Any ideas???
 
#2 ·
Did you replace with a proper OEM sensor, and the bracket and linkage are correctly attached? you’re getting that error because the leveling system hasn’t been properly calibrated. You may have to perform it several times, with a battery charger at 40a connected. Make sure it’s on perfectly level ground.
 
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#3 ·
Thank you very much for answering.
The part is not 100% OEM, but it is not from Aliexpress either, the ground was level, it is the home garage, and the battery is new 100 Ah.
I agree with you that the error occurs because I have not been able to calibrate the suspension, the problem is when I reach channel 05, which does not allow me to confirm the real values.
 
#4 ·
Did you enter security code prior to starting the calibration?
 
#5 ·
I imagine that you are referring to 31564, if I put it in, otherwise it would not let me put the real values of the first four channels, I have the problem when entering channel five to confirm the new values. If you see any errors in the writing, sorry, I'm using the google translator.
Also, now I'm dating another user, I'm posting from work with a different account, which I didn't even remember I had.
 
#6 ·
We continue to bingo, after much trying to calibrate the suspension, without success, and seeing that in any case the Tou behaved well, without too many differences in height, which made it completely drivable, my daughter took it on a trip, a few 300 km and, when he arrives at his destination, he tells me that the car bounces a lot and that he thinks it is raised on the nose, I tell him to measure the distance from the axle to the fender and 560 mm come out on both sides, much more than the 497 that it should to have it at normal height, and the car appears on the screen with the stripes illuminated, like when it goes off road. I'm going there tomorrow to see if she lets me calibrate the suspension this time, because I think everything comes from there. Let's see if the goblins remove the ERROR CHANNEL 5 NOT AVAILABLE. The other day, when I was trying to do the calibration for the second time, it wouldn't let me manually raise or lower the suspension either, with the errors erased.
 
#7 ·
Desperate, I just got to where I have the Tou, I found it with the front suspension raised, 600 mm from the center of the wheel. I have read errors, I paste them below, I have deleted them and I have tried, again, to make the adaptation, now it does not even let me enter the value of channel 1.
Let's see if something happens to you.
These are the mistakes
VCDS Windows Based VAG/VAS Emulator Version: Release 12.12.0 www.Ross-Tech.com
Dealer/Shop Name: Workshop Code: 000 00000
Diagnostic Trouble Code Report Friday,03,June,2022,20:36:17:33490
VIN: License Plate: Mileage: Repair Order:
Control Module Part Number: 7L0 907 553 G Component and/or Version: LUFTFDR.-CDC- 3C3P1 3112 Software Coding: 0015521 Work Shop Code: WSC 31414 790 00001 VCID: 377B5D8742CF56A6659-8062
4 Faults Found: 01780 - Sensor for Vehicle Leveling 003 - Mechanical Failure - Intermittent 01400 - Suspension Level Control 002 - Lower Limit Exceeded - Intermittent 02250 - Function Deactivation; Valve Duty Cycle 001 - Upper Limit Exceeded - Intermittent 00776 - Level Control System Sensor; Left Front (G78) 012 - Electrical Fault in Circuit - Intermittent