BMW E87 118i code default 2D32 and 2A70 - Bimmerfest - BMW Forums



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  #1  
Old 01-15-2020, 07:44 AM
cakal67 cakal67 is offline
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BMW E87 118i code default 2D32 and 2A70

Hello guys,

First wish you a happy new year, mine started bad

I got the engine light light up since few days and when I check with AUTOCOM or BMW INPA tool I've got 2 different default code :

2D32
2A70 (seems to be related to valvetronic ? )

anyone had same issue with this car ? What could be the reason ?






My car : BMW E87 118i (N46 engine) from 2006



sorry for my bad english
thanks a lot ,
Regards,
Cakal
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  #2  
Old 01-16-2020, 07:09 AM
mr_bean mr_bean is offline
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In your picture 2A70 says “error would not cause a warning lamp to light up” which means you can probably ignore it for now.
The other error code is related to the MAP sensor. You’ll need to diagnose the erroneous readings from that sensor. I would not recommend just replacing it until you verify the cause of the error.


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  #3  
Old 01-17-2020, 04:44 AM
cakal67 cakal67 is offline
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Quote:
Originally Posted by mr_bean View Post
In your picture 2A70 says “error would not cause a warning lamp to light up” which means you can probably ignore it for now.
The other error code is related to the MAP sensor. You’ll need to diagnose the erroneous readings from that sensor. I would not recommend just replacing it until you verify the cause of the error.


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Thanks, I will check then at first issue on MAP sensor. I will clean it up, check all wiring,change air and fuel filter to start.

If error is already there I will change MAP sensor. Hope to find the right one.

I will let you know when I do the checks , thanks for your help
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  #4  
Old 01-21-2020, 03:07 AM
JTL1985 JTL1985 is offline
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I have been struggling with code 2A70 for few months now. At first there was codes 2A67 Valvetronic Internal Fault, 2A6B Valvetronic Power Limitation and 2A70 Valvetronic Servomotor. Car went to limp-mode many times but after changing servomotor the car has ran fine. Only a fault code 2A70 persists, but not in the dash. Please, let me know how do you do with your fault..
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  #5  
Old 01-21-2020, 07:21 AM
jaye944 jaye944 is offline
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may need to replace

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Old 01-21-2020, 07:52 AM
jaye944 jaye944 is offline
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oh sorry didnt read that last bit, you replaced the servomotor
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  #7  
Old 01-21-2020, 08:00 AM
jaye944 jaye944 is offline
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I did some digging around,

I've heard that to try checking if your battery cable recall was done as it can cause valvetronic issues due to poor connection
you said you replaced the motor did/can you check the seal in the middle of the valve cover for the valvetronic sensor. If its leaking, the sensor is probably FUBARD
I think this happend on my 1'er replaced and the code went !
in my case I had valvetronic errors and some erratic idle
now smooth as a babies butt

Last edited by jaye944; 01-21-2020 at 08:02 AM.
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  #8  
Old 01-21-2020, 10:13 PM
JTL1985 JTL1985 is offline
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Thank you Jaye944 for your messages. I have to check the battery cable.
I guess you mean eccentric shaft sensor..yes, the sensor connector was a little bit oily. Changed all the seals and connector is clean now. My car is idling little bit unstable. This is what i was afraid of, this fault isn't cheap to repair.
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  #9  
Old 01-22-2020, 05:56 AM
jaye944 jaye944 is offline
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Quote:
Originally Posted by JTL1985 View Post
Thank you Jaye944 for your messages. I have to check the battery cable.
I guess you mean eccentric shaft sensor..yes, the sensor connector was a little bit oily. Changed all the seals and connector is clean now. My car is idling little bit unstable. This is what i was afraid of, this fault isn't cheap to repair.
yes correct the ESS, I keep forgetting it's name, in my case that was it, I had it done under warantee, theye didnt replace just the gaskets, or they may have :O hmmm I'm not sure, I'd have to check the repair ticket, I didnt worry too much as I didnt pay for it

but did you actually replace the ESS ? you did the seals, I'm betting it's the actual sensor, that is what this code is pointing to IMHO

it's a PITA to replace it
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Old 01-22-2020, 08:26 AM
JTL1985 JTL1985 is offline
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No i didn't replace ESS-sensor, only the seals and servomotor. If the ESS is faulty, why it doesn't give me a code?

How about the battery cable recall.. where can i check that? Is it near the battery?

My car is -04 316 compact, motor N46
Fault diagnose in the attachment.
Attached Files
File Type: pdf VIKAK.pdf (103.0 KB, 15 views)
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  #11  
Old 01-22-2020, 11:43 AM
jaye944 jaye944 is offline
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it's just the digging about that I read on it, also my error on my 128 related to the valvtronic (can't remember the codes) but it was due in my case to the oil leak, I can't remember if they did replace the ESS or it was just the oil fouling it.
I mention it only because the you've replaced the valvetronic, in the same conversation my tech mentioned "This could be a faulty power supply to the valvetronic motor or a faulty motor" and also mentioned the battery cable recall,
I don't have any info on it other than that, may wanna google it up.

I can't make sense of the fault diagnosis (sorry) I use INPA4/ISTA4 in english, from what I know, when I pull up the fault codes, it will pull up ALL the codes, what millage and whether current (i.e. hard on) it does sometimes mention and code
and have a 0 next to it essential saying not active, the problem is that you need to keep an eye on if the code comes and goes, which means it's intermittant.

you could try clearing the codes and monitoring and or pulling the negative battery terminal and leaving off for 30minutes to reset the modules

The other thing, I was looking at various videos (research) for something else and though removing the valvtronic is relatively simple I think there is a specific way to put it back otherwise you could have problems
not sure what and how, but something I did remember.

I'd also check the wiring harness to the motor (v/tronic) as well
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Old 01-22-2020, 11:48 AM
jaye944 jaye944 is offline
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ahh here you go

" before starting your car MAKE SURE YOU CALIBRATE THE MOTOR. Turn the car on without putting your foot on the brakes and let it do it's thing for about 30 sec. Turn your car off and I would honestly do it a second time just to be safe. "

this is from a Z4 video, this might help, not sure if relevant in your case/engine

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  #13  
Old 01-22-2020, 11:54 PM
JTL1985 JTL1985 is offline
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Thank you for your messages. Yes i did the calibration by switching ignition on for about minute, not start. Did it twice. After that started the motor, it ran quite of erratic but after a little drive it balanced.
Definitely servomotor was bad, because there has not been faults in the dash since that.
Im going to try unplugging the battery over night, let's see what happens.
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  #14  
Old 01-24-2020, 07:06 AM
jaye944 jaye944 is offline
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hey, thats good, give it a try and get back to us, make sure the boot can be opened as you don't wanna pull the battery and lock the boot !
also check the voltages
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Old 01-26-2020, 06:06 AM
jaye944 jaye944 is offline
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hey not sure how far you got but check out this video as well



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  #16  
Old 01-26-2020, 06:07 AM
jaye944 jaye944 is offline
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the module on top apparently feeds the valvtronic motor ?
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  #17  
Old 01-26-2020, 06:09 AM
jaye944 jaye944 is offline
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@1:50 shows the power wire for the valvtronic
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  #18  
Old 01-27-2020, 05:10 AM
cakal67 cakal67 is offline
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Quote:
Originally Posted by JTL1985 View Post
I have been struggling with code 2A70 for few months now. At first there was codes 2A67 Valvetronic Internal Fault, 2A6B Valvetronic Power Limitation and 2A70 Valvetronic Servomotor. Car went to limp-mode many times but after changing servomotor the car has ran fine. Only a fault code 2A70 persists, but not in the dash. Please, let me know how do you do with your fault..
No issue , I checked first my fault code 2D32, as it seems that wiring was clean I ordered a new MAP sensor. Wait for the part to change it in next days.

part number for MAP sensor : 7542623 or 8657300 : https://www.piecesauto24.com/vemo/13679308


For 2A70, if you already changed the valvetronic part , did you calibrate it with using ISTA ? Some youtube vids speaks about waiting 30 sec bbefore engine start , somes websites speak abouts recalibrate it with ISTA tool , it is described as "ISTA valvetronic adaptation".


If my fault code 2D32 disappear by changing MAP sensor I will check the second issue and will let you know if I find something helpful.

Last edited by cakal67; 01-27-2020 at 05:14 AM.
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  #19  
Old 01-27-2020, 09:11 AM
jaye944 jaye944 is offline
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https://www.bimmerfest.com/forums/sh....php?t=1017945
post number 6 is important

https://www.bimmerfest.com/forums/sh...d.php?t=485248
post number 8

https://www.e90post.com/forums/showthread.php?t=976004
is also good

different people say different things about relearning, but all of them had jerky acceleration
you just have codes, look at post 8 for the 2nd url

Last edited by jaye944; 01-27-2020 at 09:15 AM.
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  #20  
Old 01-27-2020, 09:19 AM
jaye944 jaye944 is offline
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from an e90 post

You do what?? Why? Where did you learn that? This is misleading info.

There are two sure ways of re-learn both end positions of the valvetronic motor.

1) Using INPA.
First, you delete the valvetronic adaptation.
Exit the program and switch the car completely off.
Remove the key and let the DME to sleep in for 5 minutes.
Then plug the ignition key back in, and turn ignition on without starting the engine.
If you have luck you will hear how the motor cycling itself.
If not, connect INPA and re-learn the motor under "System -> VVT"
Then switch off ignition once again and let the DME sleep in for 5 Minutes.

Now you should be done and everything should work.

2) Without INPA.
As described above, just turn ignition on without starting the engine. Do not do anything else. After 3-4 seconds the VVT motor will start moving and re-learning its end positions. Let the ignition on for 20 seconds to be sure.
Then switch ignition off, remove the key, close the car, let it sleep in for 5 minutes.

It must work afterwards for sure if VVT motor and sensors are in working condition!
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  #21  
Old Yesterday, 04:33 PM
cakal67 cakal67 is offline
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Sorry guys didn't have time to take care of my car... I changed MAP sensor and cleaned default code several time. But errors codes 2d32 and 2a70 still there. After few checks there is some oil leak... By checking deeper there is some oil in intake manifold ... Will check further tomorrow...
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