[maszter]

Finally I was able to properly calibrate my acc at the dealer and fit everything as it should (pre lci e92). What is really strange for me that the old cruise control with brake function did use fuel cut. For example on the autobahn when getting 120kmh speed limit I just set it to 120 and the car cut fuel to 0.0l/100km when braking. However the adaptive cruise control does not do that I still got like 0.5-2l/100km consumption even when the cruise control applies the brakes. I checked all of the coding in DSC, LDM and ACC and it seems that it should use fuel cut. Anyone had this issue maybe and got it solved?

Thanks

[seadragon]

Just completed this retrofit on my 2005 e90 330i and joined this forum to thank Nickco43 shannon1 and omare90 especially - couldn't have done it without their helpful posts in this thread.

I did encounter issues such as:
- the sensor not fitting my bumper so I had to cut a bit of bumper away
- accidentally broke fragile old cruise control stalk cable as I wanted to switch only the cruise control stalk since the indicator / wiper stalks I sourced were of poor quality
- missing the first coding in the video relating to writing FA to CAS and FRM
- not realizing I had to code the LDM too (in addition to DSC and Kombi)

I got lucky when I saw a wrecker had a 2007 e90 with ACC in Australia that I could take the parts from, and thankfully my car already had an LDM installed.

To tap the 15WUP_AC on the CAS module, I added Pin 18 to the connector using PN 61130056960 "Contact bushing MQS with cable 0,5-0,75 MM² AG".

To tap the other cables I used POSI-TAP and POSI-LOCK products, and also a "Double Mini Blade Fuse Socket Wire Tap".

The retrofit has given me a new appreciation of BMWs since I cannot think of another car brand which would allow such a retrofit with relative ease.

[ktutza2006]

Wanted to share my experience also with ACC retrofit, maybe will help someone.
Had a lot of help from hupchye with this, many many thanks for all the support and answering my many emails. Assembled an arduino due, had help with the code and put everything together, I now have a working ACC on an E92 N47.

In my case I had an error when activating acc, it worked for a few seconds, sometimes a bit longer. After a lot of trying different things, the issue was the cluster coding. In my case, default coding with. VO $541 was not working, I put another cluster from a 330D witth acc and it worked perfectly, so copied that coding and works. Will compare this days default $541 coding vs what I have now in my cluster and post the result, maybe will help someone.

Many thanks to everyone who spent time on this, is something really cool to have ACC on 4cyl BMW.

[BIZKIT551]

A bit late to the party, but if anyone is around, I would like some clarification please.
I have an 06 330i that did not come with any kind of cruise control. I am going to fit an LDM module and a new cruise control stalk.
I am trying to get 544 which is cruise control with braking which is not the same as in the video.

Can I still tap into one of the empty pins on the cas connector to power the LDM?

Is there a guide I can follow to wiring up and coding the LDM for my application?
I have like a thousand tabs open but none really explain how to do all this.

[shannon1]

Originally Posted by BIZKIT551

A bit late to the party, but if anyone is around, I would like some clarification please.
I have an 06 330i that did not come with any kind of cruise control. I am going to fit an LDM module and a new cruise control stalk.
I am trying to get 544 which is cruise control with braking which is not the same as in the video.

Can I still tap into one of the empty pins on the cas connector to power the LDM?

Is there a guide I can follow to wiring up and coding the LDM for my application?
I have like a thousand tabs open but none really explain how to do all this.

Hi BIZKIT551,

Its been a while since I did my retrofit, but I downloaded and followed Nicko43's DIY from the 1st post on Page 1 of this DIY. I then put together a simplified wiring diagram you can find on page 17 of this DIY.

For coding, I'll paste in below some notes I made whilst doing my retrofit, but the biggest problem you're going to face is that if your car has never had cruise control fitted before, then your DSC module will most likely be the basic one WITHOUT braking function. You will then have to also replace and recode your DSC module with one that has braking function if you want to get this to work. My coding notes below won't have this as I already had $544 cruise with barking function factory fitted. You'll have to search elsewhere for that as I've never done it, but I think some have, I'm not sure.

Here's a copy/paste of coding notes I made when I was preparing to start. I will put in a caveat that there might be 1 or 2 extra steps or slight changes, I can't remember, as I was also doing things on the fly and your cars coding might be slightly different. If you do run into any problems, I'm sure someone else here will be willing and able to help with advice. Hope they help.

CODING
Coding programs needed are NCSExpert, INPA, ISTA and WinKFP. Delete $544 and add $541. Write the FA to the CAS and FRM modules. Then code the VO to the DSC, Kombi, LDM and CCC/CIC modules.

NCSExpert
- Load profile – Manipulation – Ok
- F1 Start – F3 Chassis – E89 – Ok – CAS – Ok
- F2 Enter FA – E89 – Ok – Double Check Correct VIN – Ok
- Select $544 and press the Delete button on keyboard – In Attribute box enter $541 and press Add – Ok
- F6 Back to main – F4 Process ECU – CAS – Ok – Ok
- F2 Change job – FA_WRITE – Ok – F3 Execute job (Job active – Job ended)
- F6 Back to main – F1 VIN/ZCS/FA – F3 ZCS/FA ECU – FRM – Ok
- Select $544 and press the Delete button on keyboard – In Attribute box enter $541 and press Add – Ok
- F6 Back to main – F4 Process ECU – NFRM – Ok – Ok
- F2 Change job – FA_WRITE – Ok – F3 Execute job (Job active – Job ended)
- F6 Back to main – Vehicle listing should now show LDM and ACC as one of the options

ISTA+
- Pull up Vehicle Information / Control Unit Tree to confirm LDM and ACC are now present

INPA
- F3 E90 – E90 Options / Functional Jobs – Ok
- F3 UIF brings up User information field and LDM and ACC modules should be present

NCSExpert
- Load profile – Manipulation – Ok
- F1 Start – F3 Chassis – E89 – Ok – CAS – Ok
- F6 Back to main – Vehicle listing should still show LDM and ACC as one of the options
- F4 Process ECU – DSC – Ok – Ok
- F2 Change job – CODIERDATEN_LESEN – Ok
- F3 Execute job (Job active – Job ended) (trace file popup window shows successful download)
- F6 Back to main – F4 Process ECU – KOMBI – Ok – Ok
- If necessary, F2 Change job – CODIERDATEN_LESEN – Ok
- F3 Execute job (Job active – Job ended) (trace file popup window shows successful download)

C:\NCSEXPER\WORK
- Rename NETTODAT.TRC file as NETTODAT_old_yyyy.mm.dd_time.TRC
- Rename FSW_PSW.TRC file as FSW_PSW_old_yyyy.mm.dd_time.TRC
- Make sure NETTODAT.MAN file is blank

NCSExpert
- F6 Back to main – F4 Process ECU – DSC – Ok – Ok
- F2 Change job – SG_CODIEREN – Ok – F3 Execute job (Job active – Job ended)
- F6 Back to main – F4 Process ECU – KOMBI – Ok – Ok
- F2 Change job – SG_CODIEREN – Ok – F3 Execute job (Job active – Job ended)
- F6 Back to main – F4 Process ECU – CAPPL – Ok – Ok
- F2 Change job – SG_CODIEREN – Ok – F3 Execute job (Job active – Job ended)
If applicable:
- F6 Back to main – F4 Process ECU – LDM – Ok – Ok
- F2 Change job – SG_CODIEREN – Ok – F3 Execute job (Job active – Job ended)

WinKFP (to update LDM software and VIN)
- F1 Comfort mode
- F3 Update ZUSB
- In ECU family select ACCMOD – Ok
- F2 Choose ZUSB
- In ECU family select ACCMOD – In Z0 Number select latest number – Ok
- F4 Enter VIN – enter full VIN number – Ok
- F8 Done – F3 Program – Ok (wait for software to load) – Ok when done

INPA
- F3 E90 – E90 Options / Functional Jobs – Ok
- F3 UIF brings up User information field and LDM should now have new VIN and date

[HitmaN1]

Does anyone install an ACC Retrofit on 4 cylinders Gasoline ? I have an E92 320i from 03/2007 and I am very curious if there is a solution. I saw here there are guys who put it on 320d. What do I need if it's possible ? Thank you !

[colorado.e9x]

Has anyone had success in coding out sensor heating? I get an error code referencing a sensor heating failure, and it sends cruise control into complete limp mode.

https://www.bimmerfest.com/threads/d...g-off.1344529/

https://www.cartechnology.co.uk/show....php?tid=72706

I've read through these, and referenced post #16 (bimmerfest) by gexcube (I have an 06 330) but have not been successful.

[mvladescu]

Originally Posted by DLucian

Thank you for your input, I managed to calibrate my sensor with the above attachment. Awesome!

Can you detail a little bit the procedure? I am getting confused with the 90 degree mirror and other stuff. I am a new user and can't PM you directly. Many thanks

[hupchye]

Originally Posted by HitmaN1

Does anyone install an ACC Retrofit on 4 cylinders Gasoline ? I have an E92 320i from 03/2007 and I am very curious if there is a solution. I saw here there are guys who put it on 320d. What do I need if it's possible ? Thank you !

Hello,
You may go thru this forum from the beginning. You will find some useful info.

Regards.

[sam9116]

Great news everyone, there is a business in the US that will make the ACC radar wiring
https://findpigtails.com/connector/l72a8/

be sure to enter

"bmw cruise control distance sensor"

under

Please confirm your vehicle model year:

[dumitru.o]

i ve made wiring for some of the people here....



website is not reachable from here (Europe)

[Randallbdk03]

Can someone help my retrofit acc into e91 320i the sensor is already mounted and wired also ldm is wired and shows in the control unit tree but I can’t get the acc to show up in the unit tree and when I try to program or code it via ncs expert it gives a fault

[Adrian052]

Does anyone know the pin outs or at least where 1 starts on the LDM? I am using one without a harness.

[sam9116]

Originally Posted by Adrian052

Does anyone know the pin outs or at least where 1 starts on the LDM? I am using one without a harness.

You need a BMW 18 pin connector
The pins are as follows

Pin 16: Power
Pin 5: PT CAN HIGH
Pin 6: PT CAN LOW
Pin 18: Wake up signal
Pin 17: Ground

[shannon1]

Originally Posted by Adrian052

Does anyone know the pin outs or at least where 1 starts on the LDM? I am using one without a harness.

Originally Posted by sam9116

You need a BMW 18 pin connector
The pins are as follows

Pin 16: Power
Pin 5: PT CAN HIGH
Pin 6: PT CAN LOW
Pin 18: Wake up signal
Pin 17: Ground

Go to page 17 of this DIY for a complete wiring diagram.

[shannon1]

Originally Posted by Randallbdk03

Can someone help my retrofit acc into e91 320i the sensor is already mounted and wired also ldm is wired and shows in the control unit tree but I can’t get the acc to show up in the unit tree and when I try to program or code it via ncs expert it gives a fault

4cyl cars are not set up for cruise control at all. Go back to the start of this thread and read through all the posts. Someone did get it to work and requires quite a bit or extra work than just mounting and wiring in the sensor and LDM.

[Adrian052]

Originally Posted by shannon1

Go to page 17 of this DIY for a complete wiring diagram.

Let’s say I don’t have a 18pin. And I have connecting directly to the terminals. What is the layout? IE: top left is 1 and bottom left is 9.

[sam9116]

Originally Posted by Adrian052

Let’s say I don’t have a 18pin. And I have connecting directly to the terminals. What is the layout? IE: top left is 1 and bottom left is 9.

18 pin connectors are very easy to find, don't make this job any harder for yourself than it already is

[Adrian052]

Originally Posted by sam9116

18 pin connectors are very easy to find, don't make this job any harder for yourself than it already is

I’ve been looking at I can’t find anything at the store that I can pickup. Looks like I have to order and it will take days to get to me, which id like to avoid. Do you know any part numbers or off the shelf solutions?

[sam9116]

Originally Posted by Adrian052

I’ve been looking at I can’t find anything at the store that I can pickup. Looks like I have to order and it will take days to get to me, which id like to avoid. Do you know any part numbers or off the shelf solutions?

This was under the ACC page under Realoem.com

https://www.realoem.com/bmw/enUS/sho...18#61138364666

You will need 61138364666 and 61138364662

[Marv17]

Hey everyone. So I'm tackling this retrofit as well. Started today. Was able to source the ACC sensor, harness, LDM, mount, screws and the clock spring assembly with acc stalk all at once.
Today I started with mounting the sensor on the car. And since I have the M rep bumper I had to cut the lower grill to accommodate the sensor. The last thing I have to tackle is the wiring in the cabin.
I have a 2006 325i, USA, VB13.
Hopefully I can code it all using protool. (Has anyone tried using protool to code for the retrofit?)
Since I have the xenon AHL lights I'm going to hopefully be able to get the connections for the PT-CAN at the FRM.

[colorado.e9x]

Originally Posted by Marv17

Hey everyone. So I'm tackling this retrofit as well. Started today. Was able to source the ACC sensor, harness, LDM, mount, screws and the clock spring assembly with acc stalk all at once.
Today I started with mounting the sensor on the car. And since I have the M rep bumper I had to cut the lower grill to accommodate the sensor. The last thing I have to tackle is the wiring in the cabin.
I have a 2006 325i, USA, VB13.
Hopefully I can code it all using protool. (Has anyone tried using protool to code for the retrofit?)
Since I have the xenon AHL lights I'm going to hopefully be able to get the connections for the PT-CAN at the FRM.

Your setup is identical to mine (including bumper) and I was able to code mine in with ProTool. And yes you'll br able to tap i to the PT-CAN at the FRM. Where did you source your sensor? Mine's faulty; and the only thing stopping me from using it