Few words about Allroad "normal behavior", please
:confused: :newbie:
I am interested in the behavior of air suspension when everything properly. Does the car is at position 3 when it is parked?
How long does it normally takes to achieve a given position of the car?
If you park in the evening , how many mm auto "fall" down in the morning?
Is this normal operation of air compressor (one sequence) is 30 sec?
Thanks in advance,
B
Re: Few words about Allroad "normal behavior", please
I'll try to answer tyour questions in relation to how my Alroads perfprmed...
I am interested in the behavior of air suspension when everything properly. Does the car is at position 3 when it is parked?
If you mean "does the car sit at level 3 when parked: Answer is Yes.
How long does it normally takes to achieve a given position of the car?
Mine takes just over a minute to go from one level to the next. I know this isn't good because bagpipingandy's newly refurbished compressors do it in 18 seconds...I'm living with it for now.
If you park in the evening , how many mm auto "fall" down in the morning?
Not at all.
Is this normal operation of air compressor (one sequence) is 30 sec?
Normally longer than that, but shouldn't run for minutes. Sounds like your compressor is OK.
I'm not sure abouit the logic, but my compressor always stops when I come to a standstill, so it may be disabled when stationary so as to not offend the rear passengers (unless you press the buttons to change levels)..
If you have a bag leak, it's more likely to affect one end than the other (usually the front). Sinking down evenly probably points to the air lines going to the valve block or the valve block itself.
Re: Few words about Allroad "normal behavior", please
Thanks for the reply. I mean exactly as You say, sorry for my English.
I hope Bagpipingandy and another members will join with comment.
Sincerely,
B
Re: Few words about Allroad "normal behavior", please
I agree with kid-jenson, difficult to describe a normal operation as they are have different levels of wear, but they can run from 18 secs at best level 1 to 2 and 2 to 3 the same, level 3 to 4 takes longer, the max it will run is 120 secs, this will throw up an error, it shuts off and waits for a bit then will try again. if your compressor works within this range it is fine,
It should not sink, if it sinks it has a leak.
are you experiencing issues or just checking?
Regards
Andy
Re: Few words about Allroad "normal behavior", please
Based on comments on the forum and based on my check of the car air compressor is #1. suspect. I will post my experiences after a compressor rebuild.
I would add that the suspension is very slow going up and the compressor is "unnatural" sound.
Thanks again and best regards,
B
Re: Few words about Allroad "normal behavior", please
Ok, thought I might add in a bit from my experience...
I usually hear compressor running for approx 30 secs at a time, mine is weak now also.
That would vary I guess depending on compressors health.
If takes long to raise its definatelly knackered.
When there is enough pressure in reservoir it raises a level in 20-25 secs.
Mine does not have MAN option on controls and it stays in which ever level i leave it on parked, I tend to stay in 3rd, to prolong spring life and reduce sagging I have at front...
Normally suspension should not sag at all "fall down" unless you have a leak somewhere.
:amish:
Re: Few words about Allroad "normal behavior", please
My allroad intermittently (once every couple of weeks) sinks down fully overnight at the front (on both sides). I unlocked the car when I noticed this yesterday and it raised back up to Level 2 without the compressor running. I then locked the car and it stayed at level 2 overnight (the car wasn't driven or even started in between times). While driving sometimes I can hear the compressor coming on and off in short cycles (less than a minute) but that seems to have been better lately. I was all set to get a replacement front air spring until I noticed that it was happening on both sides. Any ideas? Thanks.
Re: Few words about Allroad "normal behavior", please
Try "locking" the suspension overnight to see if one particular air bag reveals itself.
On my Allroads, that involved pressing the Up and Down buttons together for 4 seconds till both lights come on, yours may be different, but the locking facility will be there somewhere.
With the suspension locked, the leaking bag should be obvious because it will be lower at that corner.
Generally (but not allways) the lowest level will reveal the leak, so start with that... Once you have the car cocking it's leg, you can confirm the leak by a thorough spray of soapy water on the suspension bag and other air-pressure components, then look out for bubbles. Again, this is more likely to happen at the lowest setting.
Re: Few words about Allroad "normal behavior", please
Quote:
Originally Posted by
kid-jensen
Try "locking" the suspension overnight to see if one particular air bag reveals itself.
On my Allroads, that involved pressing the Up and Down buttons together for 4 seconds till both lights come on, yours may be different, but the locking facility will be there somewhere.
With the suspension locked, the leaking bag should be obvious because it will be lower at that corner.
Generally (but not allways) the lowest level will reveal the leak, so start with that... Once you have the car cocking it's leg, you can confirm the leak by a thorough spray of soapy water on the suspension bag and other air-pressure components, then look out for bubbles. Again, this is more likely to happen at the lowest setting.
Thanks for the response kid-jenson. It hasn't sunk down since the weekend. I envisaged that the air circuits were all independent so am confused why both fronts sat down. I've also been hearing the compressor running on short cycles again as I'm driving around today (at level 2).
Re: Few words about Allroad "normal behavior", please
Hi Paul,
The circuits are independant but with the system "active" the opposite corner will lower to compensate for the leaking corner, but put it into jacking mode and the system is "deactivated" and will do nothing, so any air leaks will show with the car sinking at, hopefully just one corner,
only park at level 1 to find the leak it will not leak if just a small leak at level 2.
park tonight at level 1 in "jack mode" as described by kid-jenson above
if it sinks only at level 1 but not at level 2 or higher it is the airbag bag perrished, use sopay water for more evidence,
the compressor will run on most journeys at some point, ussually kicking in for a bust of 30 seconds when you hit 15+mph, but slow down if in town and stop at traffic lights the compressor will stop too, this can give the apperance of the compressor running a lot on/off but it just hasent had a long enough run to get pressure up in the tank.
best regards
Andy