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Discussion Starter · #1 ·
Hi Guys!

I've been working on my 330i and have just upgraded the airfilter and intake boot, alongside adding an M3 Style bumper (decoded the washer jets) then just changed some of the comfort access settings (lights and wing mirrors folding).

It's got full service history with BMW and was recently serviced in May, however, since purchasing an OBD reader and Bimmercode/Bimmerlink I've now got the following error codes:


Safety and information module:
A6CF (AUC SENSOR)
93D0 (Supply voltage - under voltage)

Motor electronics:
30E9 (nitric oxide catalyst, aging)??
2
E85 (0x2E85 electric coolant pump, communication)
2F11 (0x2F11 radiator shutter, top)
2F9E (0x2F9E Thermal oil level sensor)

Comfort access:
A08C (TAGE_FAT_Antennen_defekt)
A069 (Innenraumantennen_hinten_defekt)

Dynamic stability control (MK60 E5):
5DBD (Pressure sensor rear left hydraulic leakage rear axle)
5DA7 (Hydraulic leakage front axle or rear axle)
5D9D (Front left pressure sensor hydraulic leakage front axle)
5DF4 (Vehicle electrical system voltage <9 volts)

Instrument panel
A559 (KL30g_f shutdown)

If anyone would be able to help me understand these and whether I need to get anything looked at that would be greatly appreciated!

Thank you! 🙌
Roux
 

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Discussion Starter · #3 ·
Thank you Atyn, I've now cleared them and just have 3 that have stayed on:

Safety and information module:
A6CF (AUC SENSOR)
Error symptom- signal or value implausible
Error status - Error not present currently but stored
Error severity - Error would not cause a warning indicator

Motor electronics:

30E9 (nitric oxide catalyst, aging)
Error symptom- signal or value above threshold
Error status - Error present and stored
Error severity - Error would not cause a warning indicator


New one:
A177 (external fan is not working
Error symptom-
Error status - Error not present currently but stored
Error severity - Error would not cause a warning indicator

If you've got any idea about what I could do to sort these that would be a great help.
Thank you again 💎
 

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AUC sensor I would just ignore for now as it’s for the HVAC system,it senses smells and fumes and operates the review flap.
Cat one I think is similar to what diesels log at certain mileage for DPF age. It is something bmw put in the software as they believe it will have reached end of life by that mileage.
a177 is idrive cooling fan, assume your e90 has idrive?
 

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I wouldn't worry about them. They are not currently active and aren't affecting the performance or emissions.

Owners rely on the mil/eml to come on if there are faults that need attention. If you hadn't bought an obd reader, you'd be none the wiser!
 
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