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      12-11-2009, 02:59 PM   #6
tom @ eas
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Drives: BMW
Join Date: Nov 2005
Location: Anaheim, CA

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TPMS Emulation - Macht Schnell RDC/TPMS Emulation Module

As stated in the opening post, the stock M3 wheels were switched out in order to get a bit wider rubber underneath.

Tire Pressure Monitoring System (TPMS) is an electronic system designed to monitor the air pressure inside all the pneumatic tires on all BMWs manufactured since 2006. Within a predetermined pressure level, a RF signal (433mHz) is sent to each of the receivers located in the wheelwells. These systems report an error message to the driver when pressure is low.

All current BMW models use TPMS sensors for pressure monitoring. Since this build will be alternating between wheels on the street and the track (as well as events), sensors would be needed for each set of wheels.

The sensors were omitted and the first thing we were greeted with was the dreaded TPMS error on the dash/iDrive screen.



To solve this issue, we will be installing the Macht Schnell TPMS/RDC Emulation Module which allows the following:

- Proper emulation of the TPMS/RDC monitoring system
- The ability to run racing tires/wheels or other environments in which TPMS sensors are not compatible
- No dealer visits or coding required
- Can be removed at any time

A quick overview of the install process can be seen below:

Accessing RDC Housing Grid behind passenger trunk lining:


BMW RDC TPMS Control Module


Accessing connector housing for pin removal


New module installed & operational


The Macht Schnell RDC/TPMS module can be turned on/off at any given moment by the driver's side window switches:

Configuration:
1. Enter vehicle (key off/removed from ignition) and close drivers door
2. Lift Driver/Passenger window switches to 2nd position and hold for +5 seconds.
3. Blinker indicators on gauge panel will indicate whether module is activated/deactivated:

<= only, module is OFF
<= => at same time, module is ON

When activated, TPMS malfunction indicator is no longer illuminated.



Moving to interior next.
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