Hi Guys, will try to be as brief as I can. Bought an 04 530i with 177K Miles over the internet sight unseen. When the car arrived, Trans Fault was on the display. Mechanic saw the Trans Pan was cracked at the rear and almost all the fluid was gone. Replaced the Trans Pan along with the sleeve and filled it up with BMW trans fluid. Did the adaptation and the car shifted smoothly. LIKE NEW!!
Next morning, I get in the car, drive it for a few miles and it goes into limp mode (Trans Fault) after going down the road a few miles. Actually at first the Cruise Control Warning light pops up for a few secs, then Trans Fault Appears along with Service Engine Soon Light. I'm able to pull over, reset the codes using my generic scan tool. Restart the car and it drives fine for the rest of the day. This exact same event occurs anytime the car is left off for over and hour or two. Drive for a few mins/miles Cruise Control warning light(yellow) then Trans Fault. Sometimes you can cut the car off for a few mins and restart and the it will drive smoothly without resetting it with the scanner. As long as I don't let the car sit up too long, it drives fine. Just took it from Atlanta to Alabama and back with no problems.
I have an Independent Mechanic with AutoLogic. He's an excellent General Mechanic, but he has only been working with BMW's for 2 years. So I would rate him between a "Freshman and Sophomore" as far as knowledge.
Here are the Codes AutoLogic pulled up, along with the screen shots below.
514A-No Message from the centre console control panel, receiver EGS, transmitter SZM
5142-No Message, receiver EGS, transmitter KOMBI
5144-No Message from the Car Access System, receiver EGS, transmitter CAS
CF07-PT-CAN Communication fault
5146-Message from the driver's seat satellite missing, receiver EGS, transmitter SSFA
299A-CAN fault management EGS
CD99-Message(torgue request EGS, 0xB5)faulty, receiver DDE, transmitter EGS/HIM
CD9D Message(transmission data, 0xBA) faulty, receiver DME, transmitter EGS/SMG
In addition, when we went into the Energy Menu, here is what we got:
Battery 86%
SLEEP MODE PREVENTED
Vehicle Does not Assume Sleep Mode Instrument Cluster
Frequency 1 Periphery of Control Circuit
Defective Control Unit-Dash
Wake -Up Line
Where do I start? Obviously there is a communication problem with the EGS or the Dash Cluster. Is it the EGS or the wiring that goes into it? I have no idea!! Tried searching the codes, not much out there. Hoping you guys can point me in the right direction. Mechanic can fix it, once I point him towards the problem. Last resort is take it in to BMW and have them diagnose it.