iDrive faulty?

[ButtonIt]

2007 (57) BMW 320d Coupe M-Sport

I've had an issue with the engine management light coming on (2 weeks out of warranty). I took it to my local independant and they gave me a list of fault codes from the OBD2 port. They tried to reset them, but it came straight back.

The garage think it's either a faulty ECU or faulty iDrive. On the basis that the car is driving fine I'm leaning towards the iDrive.

Basically, it's EGR positioner actuator faulty, oxygen sensor heating actuation faulty, engine mounting control actuation faulty, air mass sensor faulty, IAT sensor faulty, communication between glow duration and engine control faulty.

Codes 4BD6, 41D1, 4A74, 4A79, 4206, 4BC1, 4BB6, 4BC6, 4BA1, 4BD7, 41E2.

Any ideas?

[ButtonIt]

Actually, my fuel consumption is shocking. I've done 40.6 MPG on the 40 mile drive home averaging 67 MPH.

[THE arch stanton]

yeah 40.5 is awful

335i owner

[Cemesis]

What was your economy before? Does it have full BMW service history? I believe you can now re-enter cars into the warranty scheme after its lapsed. Might be worth considering, even if it was £600 or something, rather than trying to track down the issue. Would give you another years piece of mind too.

[ButtonIt]

It was around 47MPG averagely. I'm not sure about the warranty, I'll have to check. I'm hoping it might just be a simple reset, but I've tried disconnecting the battery for an hour and the iDrive reset (eject buttons and power off).