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7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift. |
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#176
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Recently the ACC in my 2004 740d stopped working from one day to the next.
When I try to engage it I just get the "---km/h" for a few seconds on my speedometer as if my speed was below 30km/h where it shouldn't engage. Could this be the ACC-sensor itself or some other speed input to the ACC? I just got INPA installed on my laptop but I'm having a bit of difficulty finding my way around there. I managed to navigate to the ACC in the menues but couldn't figure out how to simply get a reading from the sensor to see if it's working or not.
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2004 BMW 740d |
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#177
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Sent from my SM-G955U using Bimmerfest mobile app |
#178
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I think I managed to do that and couldn't see any faults relating to the ACC. But I might be mistaken, as I said I had some problems understanding things in INPA.
As soon as I get a chance to plug into the car again I'll get some screenshots of what I get when I look at the faults. Temps are still below freezing most days and I don't have a warm garage to work in so I might need to wait until it gets a bit warmer.
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2004 BMW 740d |
#179
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![]() Sent from my SM-G955U using Bimmerfest mobile app |
#180
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Sorry for the long read but I really nead help with this.
I changed out my ACC2 sensor (after breaking mine) for one from an E91. I set it up in inpa, aligned it and it didn't work.. I hade 2 errors in the acc wich I managed to remove by resetting the VVT (I think) in the engine controll unit. Now to the wierd thing. It started working but only as a normal cruise control not able to see what speed i'v set in the dash and not keeping the distance to the car in front and it doesn't really know what gear to be in in low speeds, changing rapidly up and down if I don't set the gearbox to manual mode. I have communication errors with the ACC in the DSC, EGS, KOMBI and probably something els. I am able to communicate with it fully through INPA but I can't read out the coding of thr acc with NCS exper and I have yet not figured out how to flash the module with Winkfp, just some failed attempts. I even tried to connect the old broken ACC2 and to behold it worked and all the errors in the control units disappeared and I was able to read out thr coding from the old "broken" ACC2. And then I connected the new one and the same problems reappeared... Does anyone have any suggestions I'm kinda stuck here at the moment? Last edited by vibbelito; 05-17-2018 at 04:30 AM. |
#181
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and i don't know part on item 34516783360-01 what -01? anyone help me... thank you |
#182
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I installed an ACC2 sensor from an E60 into my E65. It did not work correctly until I coded it with the E65 settings. Eventually I flashed it with newer software and it worked well. I always wondered if the E90/E91/E92 sensor was the same hardware as the E60/E65. At a minimum, I suspect the E91 software is incorrect for the E65. You may need to force flash using WinKFP... and not use "comfort" mode?
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2007 530xiT
2010 X5 35d, 2005 745i, 2000 740i, 1999 540i, 1994 525i - all SOLD but not forgotten E65/E66 Parts for Sale: Alpina Type 743 Front Spoiler kit (new in box) $1200 Last edited by rippjd; 05-20-2018 at 06:14 PM. |
#183
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If I remember right, the VIN coded to the acc is from an E91 but the UIF says e60, sooo... Onto the Winkfp thing. I have been trying to flash it but always gets all different kinds of errors. (in comfort mode) mostly that it cannot find the ZB when I enter the one from INPA. If I go to "update module" and chose the module manually it cannot find the address or something like that or the other way around. Or I get some other errors. I have been trying to find a good guide to force flash it preferably to the same software as the old "broken" ACC2 sensor but with no luck.. So if someone could find some sort of guide for that it would be appreciated! I think NCS also gives me an error that it cannot find the module. Something interesting, in INPA in the ACC module there is an expert mode where you can do all kinds of things, but the coding part of it you need a password to access wich I cannot seem to find... |
#184
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#185
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The coding index of the old ACC found in INPA
And the coding index of the new one from the E91. This is the only way I'm able to read the coding of it since I can't access it via NCS I then wrote it to a NETTODAT.TRC file to be able to read it in NCS Dummy and compare the coding from the new and old one and it sure differece a lot between the two. There is a way to download the coding index and rewrite it but I haven't been able to import it back to the ACC via INPA as of yet. I won't give up just yet. Let's see how deep this rabbit hole can go. I will try to force flash the software from the E65 when I figure out how |
#186
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Update: I think I managed to force flash the ACC successfully with the software from the E65.
1 attempt. I first got an error saying projects don't match and at the first try flashing I got an error and the flashing did not succeed but I could still find the acc in the INPA UIF section with its address but all other things were missing. (it might have failed due to lpw battery) I then drove the car for 30min an the acc worked as previously (only as a normal cruise control) 2nd attempt I got the same message that projects don't match but this time it flashed the software successfully and I got a whole bunch of errors in inpa, cleared them and locked the car to let it go to sleep. I will update later if it worked and post screenshots. |
#187
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#188
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Can you help me calibration acc2! Thank you |
#189
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My ACC1 including the connector and stalk is available - it is the one I retrofit into my 2002 e65 745i. 100% worked like a dream. The new e66 already had ACC installed, so I no longer need this one.
Last edited by osc; 01-09-2019 at 04:13 PM. Reason: Edit to confirm ACC1 |
#190
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Skickat från min SM-G955F via Tapatalk |
#191
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#192
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Late question
I don’t understand where to put the wires from caped connection behind de bumper?and where to take ground wire? Sent from my iPhone using Bimmerfest |
#193
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So please help me...
Fuse wire where I must put it? Cas wire where is must put it? And the wires from capped connections where I must put them... Sent from my iPhone using Bimmerfest |
#194
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Post #6 has part of the wiring diagram. Search for "BMW WDS" and you can find the entire diagram along with locations.
__________________
2007 530xiT
2010 X5 35d, 2005 745i, 2000 740i, 1999 540i, 1994 525i - all SOLD but not forgotten E65/E66 Parts for Sale: Alpina Type 743 Front Spoiler kit (new in box) $1200 |
#195
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Are there instructions for installing the acc2 on the FL e65/e66?
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#196
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I don't think installation will be any different. It will still require the same things as retrofitting ACC2 on pre facelift.
Skickat från min SM-G955F via Tapatalk |
#197
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I'm actually looking for the wiring diagram. Read that the wiring is different.
Last edited by 745D; 09-03-2019 at 11:30 PM. |
#198
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Hello guys, after reading whole thread it is still not clear for me about full stop (or stop&go) function for E65.
Currently I have originally installed ACC2 sensor in my E65 2006, works fine but I would like to have full stop function on it, because now ACC function is working only until 20km/h speed. E60 2008 has same ACC2 radar sensor but have this possibility to fully stop the car. Does anybody know what is the differences between these two systems and what is needed to upgrade on E65 to have full stop function? |
#199
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Anyway, I have been looking into the e60 stop and go and if I remember correctly it uses a different abs unit, the part numbers for the ACC2 stop & go and normal ACC2 are different. And I believe the stop and go system also communicates with the car in a different way, via a separate control unit. You can go on to realoem.com and compare the part numbers and on newtis.info and read the FUB's about the systems and look at the wiring diagrams. I also want it to be possible but who knows. The reason for bmw to not make it available in the e65 could be to get people to upgrade to the F01 Skickat från min SM-G955F via Tapatalk |
#200
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After looking at it I think the big problem would be to get an E65 to communicate with LDM that is needed for stop and go.
According to tis, all communication with the sensors are going via the LDM which has CAN ID 1C while our cars are only programmed to be able to communicate directly with the ACC2 which has CAN ID 21. So I can't say how the system would behave when it sees the LDM sending a bunch of messages on the bus whilst the ACC2 isn't responding to any. But perhaps a CAN filter could be used. I'll investigate further... Skickat från min SM-G955F via Tapatalk |
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