EAS recalibration

Hello,
i have repaire my eas kompressor and put new o- rings in the valvblock.
Now my car is dancing in the front, she goes up and down a little bit.
The company who sell's my the repairparts tell my now, that i have to recalibrate the eas system.
I do not understand why i have to do that.
Do somebody have an information for my about that?
Regards
Range0815

Depends how much it's dancing and when, they all seem to move a bit when stopping for example and the brakes are released. You should not need to re-calibrate and even if you do it is not likely to affect the dancing.

€ DATATEK

Hello, it has nothing to do with the brakes.
That's what happend:
Engine is running, all doors closed and the automatic is on P, kompressor doesn't work!
then maybe all two minutes, i hear the valveblock working and the Range goes 1 or 2 cm down, only at the front. Then the compressor starts and after some seconds the valveblock starts again to work and the Range goes up.

That is what my truck do.

I read here in the forum that the non- return- valves maybe not okay.
But i change all o- rings in the valve block.

Regards
Range0815

If you read through the last thread on this subject you will note it is explained that the NRVs cannot cause this to happen. It is not possible unless you have several valves leaking badly at the same time. It is far more likely that you have a front sensor giving inconsistant readings or a leak on one of the front air bags. Or both an inconsistant sensor and a leak. If you have a sensor telling the ECU that one side is too low due to a leak. When the front valves open as a pair (that's what they do) the pressure equalises across the axle causing the vehicle to drop. Air is then replaced to bring the vehicle back up until the sensor tells the ECU to close the inlet valve. This would also happen in stop start traffic because everytime the vehicles speed drops below 1mph the front valves are opened to equalise pressure across the axle. If by this action the sensors then read low air will be introduced via the opening of the inlet valve to bring the vehicle back to correct height. Look for a air leak in the line or one of the front bags.

@ wammers,
Hello to you!

Last weekend i controlled all air bumpers. They are 100 % okay!
Also the airlines to all air bumpers.

What did i do- i drive the Range on the high position in the garage and make the eas off with the button on the right side from the easlevelcontrolbutton.
Then i make the enging off.
After that i take the 2 airlines, which goes to the rear bumpers, out of the valveblock and give air (5bar) on them. To do that, i take special valves, which i buy on ebay from symlise, an very good seller! Then i take an rest of 0,5 m airline and put the one side in the left rear valvblockoutlet and the other side of the airline in the right outlet of the valveblock! The whole weekend the Range doesn't go down!! No mm!!
I spray so mutch soapwater on the side of the valveblock, where the airlines comes out, that the ground of my garage is very clean no. lol

Last week i drive to my Landroverdealer that he can look with his Computer into my car. Maybe he can look, are the highlevelsensors are okay or not?
The end of the story is, that he don't get contact with my Range.
Then i take my laptop with the eas unlock software and the special cabel which i bought on ebay out of the Range- put the cabel in the pc and the Range and it works! The eas software works together with the eas controller.
He was a little bit shocked!
I don't knew what i should do next!
Regards
Range0815

Range0815 said:

@ wammers,
Hello to you!

Last weekend i controlled all air bumpers. They are 100 % okay!
Also the airlines to all air bumpers.

What did i do- i drive the Range on the high position in the garage and make the eas off with the button on the right side from the easlevelcontrolbutton.
Then i make the enging off.
After that i take the 2 airlines, which goes to the rear bumpers, out of the valveblock and give air (5bar) on them. To do that, i take special valves, which i buy on ebay from symlise, an very good seller! Then i take an rest of 0,5 m airline and put the one side in the left rear valvblockoutlet and the other side of the airline in the right outlet of the valveblock! The whole weekend the Range doesn't go down!! No mm!!
I spray so mutch soapwater on the side of the valveblock, where the airlines comes out, that the ground of my garage is very clean no. lol

Last week i drive to my Landroverdealer that he can look with his Computer into my car. Maybe he can look, are the highlevelsensors are okay or not?
The end of the story is, that he don't get contact with my Range.
Then i take my laptop with the eas unlock software and the special cabel which i bought on ebay out of the Range- put the cabel in the pc and the Range and it works! The eas software works together with the eas controller.
He was a little bit shocked!
I don't knew what i should do next!
Regards
Range0815

Click to expand...

Ok check (on level ground) if both front heights are same. At standard height they should be 470mm from centre of wheel to wheel arch. If one is higher there will be more pressure in that side. When front valves open pressure will equalise and car will then drop. If that drop causes sensors to read low the inlet valve will be opened to raise car until sensors read their preset value. This cycle will continue constantly. To calibrate EAS set car on level ground. Heights from centre of wheel to wheel arch should be. Access height. 405mm. Low (motorway setting) 445mm. Standard 470mm. High 510mm. There is one more setting (extra extended)540mm. But that setting is not settable and is only used if vehicle chassis is grounded to regain traction. First check your heights on level ground in standard mode, if they are all correct front and rear. Check the multi plug on the valve block. I hold the view that this maybe one cause of this dancing syndrom. People who have stripped the block and replaced duff NRV O'rings form the view that the NRVs caused the dancing when it stops after reassembly. THIS IS NOT POSSIBLE. The NRVs CANNOT cause this. More than likely they have corrected a bad contact in the multi plug by removing and reinserting it. Use some contact cleaner on it and remove and replace a few times to make a good contact. See if that helps you. Be carefully though and bad sensor giving the same reading in different places will not be recorded as a fault on the EAS software because the ECU thinks nothing is wrong, as the sensor reads normal even though the suspension is not at the correct height. This as i said earlier would give you your problem if it was reading the right setting but not where it should be, causing more pressure in one side than the other allowing a vehicle drop when the front valves open to equalise across the axle.

@ wammers
Thank you again for the informations.
At first i will control all highs and the multi plug.
After that, i have to get this parts, shown below.
Then i will start with the recalibration.
The plastic i have buy and the next days, when i have time, i will
build the parts together with an friend of min.
Regards
Range0815

Range0815 said:

@ wammers
Thank you again for the informations.
At first i will control all highs and the multi plug.
After that, i have to get this parts, shown below.
Then i will start with the recalibration.
The plastic i have buy and the next days, when i have time, i will
build the parts together with an friend of min.
Regards
Range0815

Click to expand...

No real need for them they are used when setting with test book. The smaller one for access mode and the larger for standard height. Just put one in each bump stop then depressurise and take readings. Then write them to ECU for each height. If you are using EASunlock you will still have to use a tape measure to set the other two heights. Low and high. To the measurements i quoted earlier. Or make four 40mm spacers to add to each to give low and high settings

That's an good idea.
i will built 4 40mm spacers too.
Yesterday i clean the multiplugs an put some cantact spray on it.
Today the car is dancing. I tdoesn't help.

Thank you.

when ever i do a valve block rebuild i recalibrate and check all the sensors for smooth and steady step operation not uncoman for a dodgy height sensor i always recomend replacing in pairs the same with the air bags too