2aa9

[Staki]

Good day

My 323i E90 LCI 2011 has these faults, below.
What could be wrong? The workshop wants to replace the ECU and warranty is refusing indicating that there is no evidence that the ECU is faulty.

2AA9 DME: Variable Intake System, Servomotor 2: Activation 2FA4 DME: Incorrect Data Record

Please assist fellow Bemers....

Regards
Bro T

 

[Solo Man]

Is the car idling unevenly? Had a friend who's car was idling up and down the rev counter and after changing the vanos solenoids it was discovered the tappet cover packing was leaking causing the uneven idling. His car was also E90 323i but pre facelift.

 

[Steph745]

DISA valve related fault, not sure how they got to a DME replacement from that....

 

[Staki]

Is the car idling unevenly? Had a friend who's car was idling up and down the rev counter and after changing the vanos solenoids it was discovered the tappet cover packing was leaking causing the uneven idling. His car was also E90 323i but pre facelift.

Hi,
When cold it revs up and down like crazy.

 

[Staki]

DISA valve related fault, not sure how they got to a DME replacement from that....

Thanks Stephen, I will show them these posts maybe they will do proper investigations.

 

[Peter@AEW]

Problem is the DISA system under the intake.
Remove intake and replace.
Why would you even leave it with the same tech when clearly they are stabbing in the dark.

 

[Staki]

Problem is the DISA system under the intake.
Remove intake and replace.
Why would you even leave it with the same tech when clearly they are stabbing in the dark.

Thanks Peter, I appreciate your advise.

 

[Solo Man]

Sounds to me much like a leaking tappet cover gasket or the oil cap may not be sealing or the dip stick leaks air. "Cheap" fix if that is the case

 

[Peter@AEW]

Sounds to me much like a leaking tappet cover gasket or the oil cap may not be sealing or the dip stick leaks air. "Cheap" fix if that is the case

The code indicates a disa issue what makes you think it is a head cover issue or an oil cap issue or a dipstick issue

 

[Staki]

Dear Beemers
Just how much will it cost to have the DISA valve/s replaced?