BMW Forums : BimmerForums banner

Microfilter warning light unable to reset

1 reading
4.7K views 4 replies 3 participants last post by  Leveller  
#1 ·
HI i hope someone can help. I am new to this forum and never used a forum before so please forgive me if i am putting this in the wrong place. I have a 2012 Z4. I recently had a oil change and had the and rear brake pads changed. Since then the Microfilter (pollen filter) warning symbol is coming up in red. I have tried everything i can think of to clear this. I have done the press the odometer until the yellow triangle comes up and navigate to the microfilter that is showing red then press the reset but this does not work. I have also had a friend plug in his foxwell diagnostic computer into the car and the hasn't worked. I have even tried to disconnect the battery for day to see if that would clear the fault but again that hasn't worked. The strange thing is that the replacement date for the filter is saying 2001. The car wasn't even made then. So i even tried to put the car date back to year 2000 and the reset it but again that didn't work. I am now completely out of ideas.
Image
 
#4 ·
Has the car ever had a ecu changed with a cloned ecu ?





BW chiptune

-Tuning BMWs since 1991
-Dyno Dynamics rolling road.
BW autorepairs
-Over 30 year repairing BMWs.
-New and fully refurbished BMW/Alpina ,Ecus (DME,DDE)and Cas units.
-BMW Ecu repairs.
-NOX sensor problem causing Missfire in mornings/rough running programmed out
-BMW remote Keys made and cut same day
-Key data fixed in EWS or CAS for non starters or when theft attempted.
-Correction of Engine ECUs Cas and key fitted to your car (when a key set from a different car has been used).
-Digital Service Records rest and corrections in idrive screen on 2013 onwards cars.
-DPF repairs fixed without the need of removal
-40% of my work is repairing the problems that are caused by other tuners remap

For more info look in our section under sponsors on this forum

UK
0208 561 1818
07831 103030
Unit 8&9
alpha industrial estate
Clayton Rd
Hayes
Middlesex
UB3 1BB

or

Spain
Orihuela Costa
+34643890040
+447831103030



Sent from my iPhone using Tapatalk Pro