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ECU Updates to BHI and CSS? Version info?
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jekkeri   
Mon Sep 19 2016, 02:07pm
Joined: Oct 19 2014
Member No: #1905
Location: Tallinn
 Hi,

I installed BHI (SUSPENSION_ECOTECH ECU + electric pump unit) from Citroen C5 to my C6, they both had exactly same part numbers in pump and in the ecu itself.

I set the BHI calibration from Diagbox (separate AMVAR yes, directive headlight yes) and it started working apparently fine. But it lacks the C6 features like raising up when parked, so it still uses "C5 program", I guess...

The SW version in the C5 BHI is 48, but in the previous C6 BHI it was 66. However, neither Lexia not Diagbox show any downloads to this ecu - they state "Your ecu has the latest version.". I cannot update this to C6 version, even when the ECU is physically the same?

Does anybody know if BHI and CSS/AMVAR updates always require connection to Citroen servers and "special token" given manually by Citroen central service group to update these ecus? Manual downloading always impossible? It seems so, but would be nice if somebody could confirm.
HiPOL   
Tue Sep 20 2016, 05:40pm
Joined: Jul 08 2016
Member No: #2699
Location: Gorzów
 I set the BHI calibration from Diagbox (separate AMVAR yes, directive headlight yes) and it started working apparently fine. But it lacks the C6 features like raising up when parked, so it still uses "C5 program", I guess...

Could you explain what is raising up when parked ?

The SW version in the C5 BHI is 48, but in the previous C6 BHI it was 66. However, neither Lexia not Diagbox show any downloads to this ecu - they state "Your ecu has the latest version.". I cannot update this to C6 version, even when the ECU is physically the same?

Does anybody know if BHI and CSS/AMVAR updates always require connection to Citroen servers and "special token" given manually by Citroen central service group to update these ecus? Manual downloading always impossible? It seems so, but would be nice if somebody could confirm.

I`m "fighting" with updates for last few weeks. I tried to make update at local dealer. Man who was doing update couldn`t find any update for suspension (both systems). I gave him technical note found in DOWNLOAD SECTION (here on C6owners), then he kept searching and told me he found something and updated both suspension systems. Unfortunatelly when i checked it at home all numbers remain identical as before update. I started chating with them , finally got information that they only updated ECOTECH and did not update CSS/AMVAR. I`m little confused cause i feel small difference in suspension work... Answering your question they did it online, but some people say they can make it from disc, without connection to Citroen servers. Suspension updates are hard to make. Checking discussions around i noticed 8 on 10 dealers can`t update suspension systems.
Next month i have next visit and they will try to connect my car online with Citroen headqurters specialist who will check what i have and what they can do for me.
If you could upload screenshots of your identification files of both suspension systems this could be very helpfull to identify what are the latest available versions and if the numbers should be different before and after update ?. Here are my (description is in Polish - it` my native language)
 

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