I have a 2010 328xi with a bad RDC control module. The Bentley Manual says it located in the right side of the trunk. Well, after ripping out the trim, there was no RDC. Was there a change in the location in 2010?
By deduction. The entire TPMS is down. I figure if it was an individual wheel sensor or transmitter that was bad, I'd only get a failure with that wheel. I have a second set of wheels that I put on and I'm still seeing the same issue. thanks for your help.
Hello, sorry for the delay. i looked into it, and it looks like there was a change at some point in 2010. the components are numbered and named the same. They changed to the next generation of that particular system, with the RDK module and receiver antenna in one unit. This is now located in front of the right rear wheel well area, likely behind the plastic wheel liner. Each wheel has a square "trigger" as before but the oval antenna now contains the module electronics as well. I am very sorry for the over-site in the book. I will look into making a note and posting it on our web page. Make sure all your wheel sensors are good. If the system can not read an individual wheel it will result in very long learn times, and even a no learn state. If you can, read the individual wheel sensor IDs and battery life with a scan tool. I have found that 60-80 months is brand new, however when they drop below 20 months they begin to get weak. The triggers for the sensors are right next to the wheels, however the wheel electronics transmit to a central antenna, (and in this case the module itself) so if the battery's are weak the module has a difficult time reading the signals in the correct order to associate the response time with a wheel location. The system pings each sensor then counts the response time to tell which sensor is at which corner of the car.
Thanks for the information, If I read your message correctly, the life of the wheel sensors are only 40-60 months, and that one bad sensor can throw off the system. I will checkd the battery life with a scan tool. Can I do this with the standard auto parts tool that can be borrowed, or do I need to invest in a higher end tool like from Bavarian Technic? I have been looking for an excuse to get one.
Rss1217 - I'm having a very similar issue on my 2011 328i Sedan. I ran winter tires without sensors for the 2012-2013 season and then just decided to leave them on until fall 2013 since they were getting worn down. Used the same rims and put on brand-new winters and new TPMS sensors for the 2013-2014 season, but could never get the TPMS system to get into learn mode (just always said "Inactive"). I figured it was the sensors I bought, but when I put the original factory wheels/tires/sensors back on in spring 2014, the TPMS still wouldn't go into learn mode and always flashes the "Inactive" message. Thought it was probably some kind of computer error code problem, so last week I invested in a Bluetooth OBD connector and bought BMWhat to identify and hopefully reset the code. BMWhat identified the code as A3C3 RDC Malfunction Network management but then was unable to reset it (ie. I think it just keeps re-appearing). So, like you, I'm thinking it's a real problem, afterall, with the central RDC control module. Did you ever get yours working? I've been reading that new units might have to be coded, but they are some older car models than ours.