move to normal height
#3
10-22-2012, 06:53 PM
Pro Wrench
How did they jack the 3 up?
There is usually no simple answer, and the correct answer takes time to figure out or costs you a lot of money at a dealer.
How did the 3 get jacked up? (1) Was it a frame hoist with all 4 tires hanging; (2) was it a trolley jack, one wheel at a time, or (3), two trolley jacks, one on the "rear diff" and the other under the front engine skid plate? I sure hope not (3), as the question then becomes what did they wreck?
Even with 1 and 2, the air compressor bracket or stuff under the air compressor case by the left rear tyre could be damaged.
The other idea is just look for damaged wiring to the height sensors, particularily at the front two wheels.
In the mean time, if you are desperate to try something, try a hard reset. Nothing will be damaged and sometimes the procedure erases false error codes that inhibit the suspension.
In the meantime review some of my air suspension system files per the link below. It is time for you to learn all about your 3.
DISCO3.CO.UK Photo Gallery - Home > Member Galleries > bbyer
In brief, to start the hard reset process, open the hood but close all doors and let your 3 go to sleep - no radio display etc and no key in the ignition. This will take a couple of minutes and do not open any doors until the reset is completed. (I find that it is often a good idea to have the drivers door window rolled down and the key in my pocket whenever fooling about the vehicle.)
Disconnect the ground battery terminal from the main starting battery.
Disconnect the positive battery terminal from the main starting battery.
(I assume that you only have one battery in your 3. If not, disconnect the others as well and leave them disconnected until after all is done.)
Connect the negative cable to the positive cable. (NOT the battery.) You will need a short length, (a foot or so), of light gauge, (14 to 18 gauge AWG, insulated stranded copper), wire to span between the battery cable ends as there is not enough slack in the positive and negative battery cables for the ends to touch each other.
Hold all together for about a minute or more, as you are discharging memory modules within the engine computer and elsewhere. Then it is suggested you just let all sit disconnected for say ten minutes prior to commencing to put the battery cable ends back on the battery posts per the following.
Reattach positive terminal to the main starting battery positive post.
Reattach negative terminal to the main starting battery negative post.
Start engine and hopefully no or fewer warning lights.
Reset time on the radio - note that the station presets are still there as not everything is erased. Nothing much else needs resetting either.
You can now connect up the other batteries if you have a multiple battery setup.
This is a link to a thread in disco3 re the hard reset procedure.
http://www.disco3.co.uk/forum/topic19547.html
This is a link to a thread on Disco3Club re the hard reset procedure.
http://www.disco3club.co.uk/phpbb/viewtopic.php?f=67&t=3374
How did the 3 get jacked up? (1) Was it a frame hoist with all 4 tires hanging; (2) was it a trolley jack, one wheel at a time, or (3), two trolley jacks, one on the "rear diff" and the other under the front engine skid plate? I sure hope not (3), as the question then becomes what did they wreck?
Even with 1 and 2, the air compressor bracket or stuff under the air compressor case by the left rear tyre could be damaged.
The other idea is just look for damaged wiring to the height sensors, particularily at the front two wheels.
In the mean time, if you are desperate to try something, try a hard reset. Nothing will be damaged and sometimes the procedure erases false error codes that inhibit the suspension.
In the meantime review some of my air suspension system files per the link below. It is time for you to learn all about your 3.
DISCO3.CO.UK Photo Gallery - Home > Member Galleries > bbyer
In brief, to start the hard reset process, open the hood but close all doors and let your 3 go to sleep - no radio display etc and no key in the ignition. This will take a couple of minutes and do not open any doors until the reset is completed. (I find that it is often a good idea to have the drivers door window rolled down and the key in my pocket whenever fooling about the vehicle.)
Disconnect the ground battery terminal from the main starting battery.
Disconnect the positive battery terminal from the main starting battery.
(I assume that you only have one battery in your 3. If not, disconnect the others as well and leave them disconnected until after all is done.)
Connect the negative cable to the positive cable. (NOT the battery.) You will need a short length, (a foot or so), of light gauge, (14 to 18 gauge AWG, insulated stranded copper), wire to span between the battery cable ends as there is not enough slack in the positive and negative battery cables for the ends to touch each other.
Hold all together for about a minute or more, as you are discharging memory modules within the engine computer and elsewhere. Then it is suggested you just let all sit disconnected for say ten minutes prior to commencing to put the battery cable ends back on the battery posts per the following.
Reattach positive terminal to the main starting battery positive post.
Reattach negative terminal to the main starting battery negative post.
Start engine and hopefully no or fewer warning lights.
Reset time on the radio - note that the station presets are still there as not everything is erased. Nothing much else needs resetting either.
You can now connect up the other batteries if you have a multiple battery setup.
This is a link to a thread in disco3 re the hard reset procedure.
http://www.disco3.co.uk/forum/topic19547.html
This is a link to a thread on Disco3Club re the hard reset procedure.
http://www.disco3club.co.uk/phpbb/viewtopic.php?f=67&t=3374
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