Error Code: 0027BD

[eddiemunster]

The code information is:

0027BD - Misfiring, Cylinder 3 / CDKANWSE - amp outlet Vanos / Kat protection bank 2 / Camshaft control outlet bank 1 / CDKANWSE - exhaust Vanos / Check control check charging cable 802 / CDKANWSE - controlling exhaust Vanos.

So, I know this is Vanos related, possibly a faulty/cheap solendoid, but I'm leaning (no pun intended) more to camshaft sensor or exhaust/inlet sensor rather than a faulty solenoid.

I've only just bought this Z4, and it certainly wasn't a bargain considering at the moment it's about 30%-40% down on power at the moment, with absolutely NO throttle response at all, so I don't really want to be throwing all new sensors at it, i.e. the scatter-gun approach, and as I'd probably use genuine BMW sensors I don't fancy another wallet-bumming.

Anyone had this before, and had a succinct resolution?

 

[enuff_zed]

I sympathise and you're right, just changing everything doesn't ever reveal what the problem was.
However, what you could do is buy cheap parts and fit them one at a time.
When you find the part that is actually at fault, then buy the genuine (expensive) version, refit all the genuine bits that weren't faulty and either sell on the other pats or keep them for future fault diagnosis.
Main thing I would say is, only change one part at a time or you'll learn nothing, and neither will anyone else following this thread.
Good luck finding it and I hope you find the time to feed back the results.

 

[eddiemunster]

I sympathise and you're right, just changing everything doesn't ever reveal what the problem was.

I suspect it's down to cheap parts being used, so, replacing them with other cheap parts won't necessarily cure my problem; I've been down the cheap-part cul-de-sac many times, putting right what should have been done in the first place, and it often means doing the job several times instead of once.

I'm almost tempted to go to a BMW specialist and have them address it, they'll have the genuine BMW parts on the shelf to fit where necessary, so they should be able to only charge me for what was needed. I normally do these jobs myself but I don't fancy spending out on something I've already just spent out on.

 

[enuff_zed]

I sympathise and you're right, just changing everything doesn't ever reveal what the problem was.

I suspect it's down to cheap parts being used, so, replacing them with other cheap parts won't necessarily cure my problem; I've been down the cheap-part cul-de-sac many times, putting right what should have been done in the first place, and it often means doing the job several times instead of once.

I'm almost tempted to go to a BMW specialist and have them address it, they'll have the genuine BMW parts on the shelf to fit where necessary, so they should be able to only charge me for what was needed. I normally do these jobs myself but I don't fancy spending out on something I've already just spent out on.

Fine. It was a money saving suggestion tbh. Good chance a cheap part will work long enough for diagnosis.
But at the end of the day if you have the cash to pay a specialist then there's your answer.