You will find a lot about the erratic idle on other forums ... notably
AlfaOwner.com and Alfa156.net.

It normally means you to reset the system. This is done by disconnecting the
battery for an hour, and reconnect.
Turn on the ignition, but don't start the engine, and leave in on position
for 90 secs. then turn off for 90 secs. You then start the car WITHOUT
touching the accelerator, and leave to idle for about 5-10 minutes.

You may need to repeat the 90 second reset a few times.

Other problems can be the throttle body is dirty, the MAF (Air Flow Meter is
on the way out) or you have leaks in the intake system.

The airbag light can only be reset with the Diagnostic software. May be a
loose connection under the front seats.

ENJOY your 156. I've owned one from new since 1998 and haven't given up
loving it even though it's caused me a few nightmares and damaged the bank
balance.

Jeremy Clarkson is right: You can't be classed as a petrol-head unless
you've owned an Alfa!!




"NC" > wrote in message
...
> Well, I bought it !
> Lovely car - great condition, and I think a bargain at £3600.....
> However, I have since noticed that the iddling is erratic and it judders
> a little when going steady in traffic. I have done a google groups
> search, and this appears to be down to several things - often the idle
> actuator. Any thoughts on how urgent this is to get done, and how much
> it migh cost ?? Do I need to go to Alfa, or would Jamie be able to help ?
> (also needs driver airbag resetting).