Navi on the normal system?
MBWorld Fanatic!
Joined: Dec 2006
Posts: 6,499
Likes: 335
From: Europe
223.168 & 213.012 & 906.633 & 214.005
I've understood that the US version of UMI is of the order of $2000. Perhaps this is related to their policy of not allowing SCN coding for Comand retrofits.
This actually reminds me about a question I should have asked: If the car is SCN coded for UMI, the cluster should not know that the navi display has been activated for Comand or UMI? What happens if the workshop codes the car to have UMI present when Comand actually was retrofitted, what do you think vic?
This actually reminds me about a question I should have asked: If the car is SCN coded for UMI, the cluster should not know that the navi display has been activated for Comand or UMI? What happens if the workshop codes the car to have UMI present when Comand actually was retrofitted, what do you think vic?
MBWorld Fanatic!
Joined: Mar 2009
Posts: 3,135
Likes: 272
From: Sweden
S213
I've understood that the US version of UMI is of the order of $2000. Perhaps this is related to their policy of not allowing SCN coding for Comand retrofits.
This actually reminds me about a question I should have asked: If the car is SCN coded for UMI, the cluster should not know that the navi display has been activated for Comand or UMI? What happens if the workshop codes the car to have UMI present when Comand actually was retrofitted, what do you think vic?
This actually reminds me about a question I should have asked: If the car is SCN coded for UMI, the cluster should not know that the navi display has been activated for Comand or UMI? What happens if the workshop codes the car to have UMI present when Comand actually was retrofitted, what do you think vic?
Its not the same procedure, after UMI is installed you only need to enter the IC and enter "customer specific changes" and choose "enable UMI".
UMI lies "outside" the code system and is just tapped in.
Senior Member
Joined: Mar 2009
Posts: 451
Likes: 1
From: S.F. Bay Area
2008 C300 Sport, 2010 RX350 AWD
I have UMI and my cost was about $1.8k installed..another member got his for $1.2k installed from dealer (he works for the dealer thus no installation charge)
The biggest advantage for UMI is the free traffic update here in the States plus the ability to control iPod from main screen..
However, if you are in EU..command can get live traffic update and UCI will also give you the extra connections..
The biggest advantage for UMI is the free traffic update here in the States plus the ability to control iPod from main screen..
However, if you are in EU..command can get live traffic update and UCI will also give you the extra connections..
MBWorld Fanatic!
Joined: Dec 2006
Posts: 6,499
Likes: 335
From: Europe
223.168 & 213.012 & 906.633 & 214.005
Is the CAN bus configured to read navi messages from a particular address only? The head unit and the UMI must appear with different addresses on the bus. Or is there some other reason why the cluster would not show the info from Comand in this case?
A pity, it would have been a pretty simple way to "crack" the cluster to work with Comand.
MBWorld Fanatic!
Joined: Mar 2009
Posts: 3,135
Likes: 272
From: Sweden
S213
Can you explain further, I understand that the IC coding procedure would be different for the two. But if the cluster is coded for "UMI present", what would it show if the head unit actually was Comand and was sending navi info to the cluster?
Is the CAN bus configured to read navi messages from a particular address only? The head unit and the UMI must appear with different addresses on the bus. Or is there some other reason why the cluster would not show the info from Comand in this case?
A pity, it would have been a pretty simple way to "crack" the cluster to work with Comand.
Is the CAN bus configured to read navi messages from a particular address only? The head unit and the UMI must appear with different addresses on the bus. Or is there some other reason why the cluster would not show the info from Comand in this case?
A pity, it would have been a pretty simple way to "crack" the cluster to work with Comand.
Actually do not know exactly how UMI communicates with the HU, the UMI is only connected to the car through a adapter cable wich is mounted between the HU and the stock regular harness.
However the two appears to have the same IC functionality, as long as the two systems utilizes the same bus address it should work.
According to WIS, the UMI unit communicates with HU using MOST, the HU then talks to the IC through CAN B
Its very easy to enable UMI through SDS so a dealer should be able to fix that in 10 min´tops.
Trending Topics
MBWorld Fanatic!
Joined: Jul 2007
Posts: 1,904
Likes: 29
S350 BT 4MATIC
Can you explain further, I understand that the IC coding procedure would be different for the two. But if the cluster is coded for "UMI present", what would it show if the head unit actually was Comand and was sending navi info to the cluster?
Is the CAN bus configured to read navi messages from a particular address only? The head unit and the UMI must appear with different addresses on the bus. Or is there some other reason why the cluster would not show the info from Comand in this case?
A pity, it would have been a pretty simple way to "crack" the cluster to work with Comand.
Is the CAN bus configured to read navi messages from a particular address only? The head unit and the UMI must appear with different addresses on the bus. Or is there some other reason why the cluster would not show the info from Comand in this case?
A pity, it would have been a pretty simple way to "crack" the cluster to work with Comand.
Yep DB, I asked the same question of my local dealers and
got the same answer.
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
Senior Member
Joined: Mar 2009
Posts: 451
Likes: 1
From: S.F. Bay Area
2008 C300 Sport, 2010 RX350 AWD
If anyone is interested..here is the UMI instrument cluster coding instruction..
http://www.mylostcity.com/UMI.zip
http://www.mylostcity.com/UMI.zip
