FIXED!!! Did a bunch of repairs and now CEL, DME errors P0021 and P0024 and misfires

[X5only]

Originally Posted by 06 X5

Are you still getting all the same codes that you have been getting the whole time (since the initial repairs)? Do you have access to a wiring diagram for the DME? I'd be curious to trace the wires and test for continuity from the VANOS, Eccentric shaft sensor, camshaft sensor... back to the DME. Make sure there's not a bad connection somewhere.

I can't think of anything else to suggest to you. I should be finishing up my repairs on Monday. The only thing I can't do yet is do the DME Ram_Backup because I haven't received my DIS software yet.

All I can say is that I hope that this round of repairs for me fixes the issue. I am exhausted and you've done way more work towards fixing your problem that I have. I feel for you brother!

Best of luck!

Yes, the fault codes are exactly the same as before:
- 2A84: CDKENWS2: intake/inlet vanos 2: Limit stop adaptations out of valid range
- 2A89: CDKAMWS2: outlet/exhaust vanos 2: camshaft adjustment has not reached retard/late position

Last night when I installed new vanos solenoids, the adaptation values stayed correct for quite a while and in fact I started celebrating....and as if to spite me the values reverted to wrong ones and the idle started sputtering.

Please update the thread with your findings.

Thanks.

[X5only]

Indy (Zahntech Auto) cracked the issue- the CPS sensors were swapped!!! On the 2005 X5 N62 the sensors are different on the driver side The 2 camshaft position sensors, one for the exhaust camshaft (three pole connector, 12 14 7 518 628) and one for the intake camshaft (three pole pigtail lead cable, 12 14 7 539 172). Took them just an hour to figure out my mistake. I had carefully labeled all the connections during removal and not sure how I messed up during assembly....may be orientation of the label. Although I took many pictures next time I'll make sure to take pictures of just everything and not rely only on labeling.


Car runs strong, idles great and initial fixes I had done are all good. Now I think I'll reward myself with a Dynavin N6 upgrade

[X5only]

Someone else on bmwcoders forum went through my pains with his 04 545 n62 V8 for 3 months and just resolved it in 20 minutes after seeing my post that my issue was the CPS sensors being backwards.

Caution for those who plan to do VCG on n62- the catch is that these sensors are listed as all the same part numbers (4 of them, two per bank), but on the 4.4 n62 bank2 actually has different sensors for exhaust and intake and it's very easy to mix them up!

545 valvetronic relearn - Page 2 - BMW forum. Diagnostics, coding, programming, repair BMW vehicles.

Hello All,
Thanks e39only, I wouldn't have believed it, but you were right. My sensors were backwards. I switched them out in 20 minutes, now all is Fine. I've been struggling with this issue for 3 months now, glad to be back on the road. Thanks again.

[X5only]

By the way, I have 2 camshaft position sensors (driver side), 2 solenoid valves and a slightly cracked eccentric shaft sensor that work perfectly- they're factory and were replaced out of mistaken diagnosis. Let me know if you need any one of them.