All the codes have been cleared except for the 013 Supply pressure too low, which immediately pops up as soon as you leave the HHTwin. I think I am looking at the valve block and the pump, debating which to do first.
ADS 1 System Problems, 013 HHTwin code
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Pazo, you are a genius! Now things are starting to make sense: I was thinking the exact same thing. I've been through this system from head to toe and could not figure out how the N51 computer was even reading any pressure to begin with. There are zero sensors so I was getting crazy thinking maybe it had some kind of logic connected to the damping valves or something it was looking at in terms of the flow, but this was getting pretty silly technically. Except for the valve block, there is no real "logic" in this system other than the hydraulic-mechanical which either works or doesn't, so the valve block was looking like the most "logical" issue.
Considering it develops enough pressure to raise the system to the highest level, leaks nothing, and never goes "down" or drops at all (even after being parked for weeks) I couldn't understand the "pressure" issue in the code in HHTwin.
Well, here is the answer, Pazo was right: the actual impulse code DTC list says #13 code is the oil level switch (or a computer issue). I was confused because the difference in terms with the HHTwin, it's "013 Supply pressure too low". Pressure clearly was the wrong word, or at least super confusing! I included the diagnostic procedure, will report back if this works!
Thanks again Pazo.
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Considering it develops enough pressure to raise the system to the highest level, leaks nothing, and never goes "down" or drops at all (even after being parked for weeks) I couldn't understand the "pressure" issue in the code in HHTwin.
Well, here is the answer, Pazo was right: the actual impulse code DTC list says #13 code is the oil level switch (or a computer issue). I was confused because the difference in terms with the HHTwin, it's "013 Supply pressure too low". Pressure clearly was the wrong word, or at least super confusing! I included the diagnostic procedure, will report back if this works!
Thanks again Pazo.
Viola, it works with a jumper wire, light is out and the suspension is now in comfort mode at the middle height, awesome. I can't believe I spent so much time and money on basically what amounted to 2 problems:
1) One of the rear dampening valves connectors was not connected (dangling, positioned behind a plastic shield in the spare tire well)
2) The level sender "S44" which is very similar to the coolant level sender, a sealed unit
Looks like the sender is available and cheap, thank god, widely available at around $30 (part #011-542-05-17) Even the reservoir (part #1293200514 is only about $85.
Literally could have fixed this with some patience and electrical diagnostics but instead went crazy replacing parts and draining the system and trying to bleed it at 6 different points, hilarious. Just goes to show that a decent electrical check could save you tons of work.
Thanks again Pazo!
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1) One of the rear dampening valves connectors was not connected (dangling, positioned behind a plastic shield in the spare tire well)
2) The level sender "S44" which is very similar to the coolant level sender, a sealed unit
Looks like the sender is available and cheap, thank god, widely available at around $30 (part #011-542-05-17) Even the reservoir (part #1293200514 is only about $85.
Literally could have fixed this with some patience and electrical diagnostics but instead went crazy replacing parts and draining the system and trying to bleed it at 6 different points, hilarious. Just goes to show that a decent electrical check could save you tons of work.
Thanks again Pazo!
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Thank you all, this issue was completely resolved and the system works great. Unfortunately my transmission went down, lol, so now I am back to the drawing board getting ready to rebuild it myself.
Here is my new sensor, it's part number #A 011 542 05 17. Was going to also try and fix the original so in the future I will have a spare, will post the process here. The part new was about $35.
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Here is my new sensor, it's part number #A 011 542 05 17. Was going to also try and fix the original so in the future I will have a spare, will post the process here. The part new was about $35.
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