Drive to workshop without changing gear, No communication
Thread Starter
Newbie
Joined: May 2014
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w123 240D 80
Drive to workshop without changing gear, No communication
Hi i got a REALLY weird problem with my gl320 cdi 4matic
It all starts with an intermittent esp malfunction, Then sometimes the car doesnt starts (With drive to workshop without changing gear on display)
not even crank or pre heat, But after a few minutes everything went back to normal.
Now the car doesnt starts at all and theres a drive to workshop without changing gear, srs restraint sistem malfunction, low range malfunction, airmatic
malfunction on the display in the instrument cluster.
The star diagnosis doesnt recognize a lot of computers when is givin the fault:
CDI4
TRANSMISSION
VG
HAQ
ESP
AB
MRM
The weirdest thing is that suddenly everything gets back to normal and star diagnosis recognize all the computers and erase all falut codes.
(A LOT of communication codes)
I alredy:
Charge battery and tested alternator generation
Check front and rear sam
Changed steering column module n80
I alredy open the ISM module a80 and clean it just in case.
I dont know what to do! I would change the ISM but its very expensive and it seems to me that is a communication problem! Someone can give me a clue?
Thanks in advance!
It all starts with an intermittent esp malfunction, Then sometimes the car doesnt starts (With drive to workshop without changing gear on display)
not even crank or pre heat, But after a few minutes everything went back to normal.
Now the car doesnt starts at all and theres a drive to workshop without changing gear, srs restraint sistem malfunction, low range malfunction, airmatic
malfunction on the display in the instrument cluster.
The star diagnosis doesnt recognize a lot of computers when is givin the fault:
CDI4
TRANSMISSION
VG
HAQ
ESP
AB
MRM
The weirdest thing is that suddenly everything gets back to normal and star diagnosis recognize all the computers and erase all falut codes.
(A LOT of communication codes)
I alredy:
Charge battery and tested alternator generation
Check front and rear sam
Changed steering column module n80
I alredy open the ISM module a80 and clean it just in case.
I dont know what to do! I would change the ISM but its very expensive and it seems to me that is a communication problem! Someone can give me a clue?
Thanks in advance!
MBWorld Fanatic!
Joined: Dec 2004
Posts: 4,268
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you have either a bad battery/ connection or intermittent ground.
the unrecognized modules are also your biggest power consumers. this usually indicated bad battery/ connections.
check your battery terminals. the x164 and x166 terminals do become lose and cause precisely the behavior you are seeing.
the unrecognized modules are also your biggest power consumers. this usually indicated bad battery/ connections.
check your battery terminals. the x164 and x166 terminals do become lose and cause precisely the behavior you are seeing.
Super Member
Joined: Feb 2009
Posts: 711
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From: NW corner of CONUS
2008 GL 320 CDI, 2004 VW V10 Touareg TDI
It is not obvious what year your 320 cdi is. That might help. It is also sometimes useful to know what country or state the car is registered in.
(If you are using the correct Mercedes star computer and it is giving you the faults you describe you are already way beyond what most people ask.
(If you are using the correct Mercedes star computer and it is giving you the faults you describe you are already way beyond what most people ask.
Thread Starter
Newbie
Joined: May 2014
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w123 240D 80
you have either a bad battery/ connection or intermittent ground.
the unrecognized modules are also your biggest power consumers. this usually indicated bad battery/ connections.
check your battery terminals. the x164 and x166 terminals do become lose and cause precisely the behavior you are seeing.
the unrecognized modules are also your biggest power consumers. this usually indicated bad battery/ connections.
check your battery terminals. the x164 and x166 terminals do become lose and cause precisely the behavior you are seeing.
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w123 240D 80
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Out Of Control!!
Joined: Aug 2010
Posts: 12,516
Likes: 628
From: Charlotte NC area
2019 WS222 S450 4-Matic / 2007 W211 E350 4Matic (Sold) / 2008 X164 GL320 CDI
If you go to the EPC you can look at the battery wiring.
It gives you a good idea where to look for the connections.
If you are not getting any other symptoms of a bad connection or ground, (dimming/brightening lights, etc.), I would double check the data lines.
When a lot of modules all show failures at the same time, it is hard to ignore both power (ground), and data connectivity failures.
It gives you a good idea where to look for the connections.
If you are not getting any other symptoms of a bad connection or ground, (dimming/brightening lights, etc.), I would double check the data lines.
When a lot of modules all show failures at the same time, it is hard to ignore both power (ground), and data connectivity failures.
Out Of Control!!
Joined: Aug 2010
Posts: 12,516
Likes: 628
From: Charlotte NC area
2019 WS222 S450 4-Matic / 2007 W211 E350 4Matic (Sold) / 2008 X164 GL320 CDI
Thread Starter
Newbie
Joined: May 2014
Posts: 11
Likes: 2
w123 240D 80
If you go to the EPC you can look at the battery wiring.
It gives you a good idea where to look for the connections.
If you are not getting any other symptoms of a bad connection or ground, (dimming/brightening lights, etc.), I would double check the data lines.
When a lot of modules all show failures at the same time, it is hard to ignore both power (ground), and data connectivity failures.
It gives you a good idea where to look for the connections.
If you are not getting any other symptoms of a bad connection or ground, (dimming/brightening lights, etc.), I would double check the data lines.
When a lot of modules all show failures at the same time, it is hard to ignore both power (ground), and data connectivity failures.
Thread Starter
Newbie
Joined: May 2014
Posts: 11
Likes: 2
w123 240D 80
Out Of Control!!
Joined: Aug 2010
Posts: 12,516
Likes: 628
From: Charlotte NC area
2019 WS222 S450 4-Matic / 2007 W211 E350 4Matic (Sold) / 2008 X164 GL320 CDI
6 years or heat, oil, weather, and road grime, and vibration; and you don't think the insulation on a wire can wear through?
Thread Starter
Newbie
Joined: May 2014
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w123 240D 80
The problem is that we are talking about a mercedes! I would expect that from another brand but i know that the quality of those wires are exceptional!
Out Of Control!!
Joined: Aug 2010
Posts: 12,516
Likes: 628
From: Charlotte NC area
2019 WS222 S450 4-Matic / 2007 W211 E350 4Matic (Sold) / 2008 X164 GL320 CDI
LOL!!!!!!!!!!!
They are well built, but they are not magic.
MB is under the same constraints as everyone else to use more "environmentally sensitive" plastics and such.
Additionally, they are generally low production vehicles so there is less chance of catching every little problem early.
And don't forget, sometimes "Sh*T Happens"
Thread Starter
Newbie
Joined: May 2014
Posts: 11
Likes: 2
w123 240D 80
LOL!!!!!!!!!!!
They are well built, but they are not magic.
MB is under the same constraints as everyone else to use more "environmentally sensitive" plastics and such.
Additionally, they are generally low production vehicles so there is less chance of catching every little problem early.
And don't forget, sometimes "Sh*T Happens"
They are well built, but they are not magic.
MB is under the same constraints as everyone else to use more "environmentally sensitive" plastics and such.
Additionally, they are generally low production vehicles so there is less chance of catching every little problem early.
And don't forget, sometimes "Sh*T Happens"
Well you are right thats true, I guess theres nothing more to do than start cheking all wires and grounds!
I just figured that this problem was kind a common but i guess its only mine
Newbie
Joined: Jan 2015
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S63 2008
I appreciate if you lwt me know how was it ended up with you, I have exactly same problem with my S 63 2008 !
some have said Engine control !
I took it to workshop today and will let you know what happened.
cheers
Thread Starter
Newbie
Joined: May 2014
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w123 240D 80
Hope that's usefull for you. Anything else I can help you just let me know
Newbie
Joined: Jul 2015
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GL350
Thanks
Thread Starter
Newbie
Joined: May 2014
Posts: 11
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w123 240D 80
Hope it helps.
Newbie
Joined: Jul 2015
Posts: 6
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GL350
Hi! No worries this is one of the good things about this forum, we'll that was like 3 years ago so I don't remember exactly but I used the wis asra and start studying how the affected units worked and specially which control units were interconnected with, I inspect every unit that was connected in some way with the affected units (EIS, ME, TCM, ESP) and one of them was the left headlight control unit. All the affected units were connected in some way with this headlight so I pull out the headlight and surprise, it was floated in water. So that was making a short in the CAN with produced me all of that strange symptoms.
Hope it helps.
Hope it helps.
Newbie
Joined: Jul 2015
Posts: 6
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GL350
In other words this happens because the entire CAN bus is not communicating, which then can be result from a short circuit anywhere on anything electrical. Therefore my experience may not apply to you because you may have a short circuit somewhere else.
Hope it helps.
