jfondell

Just as the title says my 2006 525 is sputtering at 4000 rpm and up. It seems like its missing? Any ideas before I take it to the dealer? Plugs and cooling system are good? Maybe restricted fuel filter?

Thanks

Wolrab

Do you have a way to read the fault codes and see what it thinks is wrong? May be something simple like an ignition coil, which you can easily replace yourself. No point paying the dealer to do that.

jfondell

Yes I will read the code and see what it says. There is nothing on the IDrive.

Wolrab

Misfire from a bad coil may not show up on the I-drive. Happened to me recently - the I-drive finally bong'd when it got really bad, and gave me an e-bollocking about misfires feeding gas to the cats and causing environmental problems. Turned out to be just one coil out of 8.

jfondell

P1017 code but thats been on there since I bought the car? It wont erase the code?

Only Bimmers

That is you eccentric shaft sensor (Valvetronic) going bad. You should have it replaced. May try doing it yourself if you are good with a wrench.

jfondell

Ok car is at the dealer with a 5000 bill. I got the valvetronic sensor replaced oil pan gasket and rear drivetrain all replaced. Thank
God it's under warranty! Gonna cost me 560 for deductible. I think I am going to extend the warranty. Thanks for the heads up about the sensor

jgt

Rear drivetrain? Can you please elaborate?

jfondell

They said everything suspension related except springs and shocks as I just replaced them.

Wolrab

Please let us know if replacing the Valvetronic sensor fixed the misfiring problem. Thanks...