Help Please

[f1direct]

Hi, i am new to this forum and need some help please i have a 2009 e92 m3 dct and have started to have some problems with it recently first of all every tome i used to start the car it used to display battery discharge and since yesterday when i was driving normal in auto mode when i slowed the car down to come to a stand still it jerked and then said transmission failer and wouldnt change gear and went into limp mode then i turned the car off and back on and it was fine and today it has done the same thing a few times any idea what it could be?

[THE TECH]

Get the codes and let us know.

[335DEE]

Originally Posted by THE TECH

Get the codes and let us know.

I have same issue by the sounds of it

Codes I got CF31 & CF33

[DJDeez]

Originally Posted by o0timbo0o

Codes I got CF31 & CF33

CF31

• Error will not cause a warning light
• Error is not currently present
• Test conditions have been completed
• Timeout

CF33

• Messages from engine control unit doesn't exist
• Error will not cause a warning light
• Error is not currently present
• Test conditions have been completed
• Timeout

[335DEE]

Originally Posted by DJDeez

CF31

• Error will not cause a warning light
• Error is not currently present
• Test conditions have been completed
• Timeout

CF33

• Messages from engine control unit doesn't exist
• Error will not cause a warning light
• Error is not currently present
• Test conditions have been completed
• Timeout

thank you

[IMG]

All related to your battery dis-charge.
BMW batteries get weaker and weaker every time they drain and get recharged.Get your battery replaced and clear the codes and you are good to go.


Good Luck !

[335DEE]

Things have now turned sinister ..



4BE3 Message (transmission data, 0xBA)
4BE8 Message (transmission data, 0x1A2)
4DF3 Message (torque transmisson, 0xB5)

Although this is clearly pointing towards the box .. does anyone have an expanded definition of the codes ?

[VCMpower]

Originally Posted by img

All related to your battery dis-charge.
BMW batteries get weaker and weaker every time they drain and get recharged.Get your battery replaced and clear the codes and you are good to go.


Good Luck !

[BPMSport]

Change the battery.

Low battery voltage can cause tons of sporadic faults in many different control units.

After battery replcement, ensure that a batter reset is performed so the IBS system adjusts it's monitoring values.

Make sure you have atleast 12.2V with the car off (preferably 12.5), and > 13.9 with engine started. Then clear all the faults and you should be good to go.

[GIdriver]

Originally Posted by Mike Benvo

Change the battery.

Low battery voltage can cause tons of sporadic faults in many different control units.

After battery replcement, ensure that a batter reset is performed so the IBS system adjusts it's monitoring values.

Make sure you have atleast 12.2V with the car off (preferably 12.5), and > 13.9 with engine started. Then clear all the faults and you should be good to go.

but here it goes anyway:
Hey, man!! Didn't know you returned. Good to have you back!!
PS: tried to PM this message but your box is full

[Endless619]

Originally Posted by Mike Benvo

Change the battery.

Low battery voltage can cause tons of sporadic faults in many different control units.

After battery replcement, ensure that a batter reset is performed so the IBS system adjusts it's monitoring values.

Make sure you have atleast 12.2V with the car off (preferably 12.5), and > 13.9 with engine started. Then clear all the faults and you should be good to go.

Good to have you back in the game!

[CBS]

Originally Posted by img

All related to your battery dis-charge.
BMW batteries get weaker and weaker every time they drain and get recharged.Get your battery replaced and clear the codes and you are good to go.


Good Luck !

^ This.

And Good Luck as well!

[BPMSport]

GIdriver: Thanks man! Much appreciated. My PM box is full, trying to get that sorted. I will PM you when it's all clear.

Heckler&Koch: Thank you!! It's good to be back, I missed you guys.

[aktansrt]

Originally Posted by DJDeez

CF31

• Error will not cause a warning light
• Error is not currently present
• Test conditions have been completed
• Timeout

CF33

• Messages from engine control unit doesn't exist
• Error will not cause a warning light
• Error is not currently present
• Test conditions have been completed
• Timeout

-- I had a similar issue, and I actually had the CEL on. It happened after resetting adaptation for VVT and Vanos at the ECU. I tried to clear the code to no avail. The code immediately came back.

I later found out about a service bulletin - SI B24 10 07 (do a web search). It is a software issue. Here is the excerpt from the bulletin:

SUBJECT
The Transmission is in "Failsafe" mode with EGS Fault CF33 Stored

MODEL
E70 from SOP to 8/2007
E60, E61 produced 2/2007 to 8/2007
E90, E91, E92, E93 produced from 8/2006 to 8/2007
All with either the ZF 6HP19TU or 6HP26TU automatic transmissions

SITUATION
After control module replacement, complete vehicle reprogramming, or after clearing DME adaptation
values, the transmission is in "failsafe" mode with fault code CF33 (No message from engine management stored
in the EGS module). The fault entry cannot be cleared.

CAUSE
EGS software application

CORRECTION
Do not replace any parts.
Using DIS 49.0 and higher run a "Short test" and Perform the following test module:
Reset learning functions / S2460_GSLFR_TU - available using the following diagnostic path:
Service Functions / Transmission Control / Calibrations / Reset leaning functions
Afterwards turn the ignition off / lock vehicle / let vehicle enter sleep mode
It is now possible to clear the fault.
This problem is planned to be corrected with August 2007 and later production vehicles equipped with these
ZF transmissions.

------------

You can also use a tool like Bavarian technic, which I did. Just make sure that you give the vehicle enough time so that it goes to "sleep mode" before attempting to clear the code.

It worked for me. Otherwise, I'd have taken it to the dealer and pay them to fix a problem that should not have been there in the first place. Good luck.

[relative4]

Nice necro.