1ECU Information
2Immobilizer Bypass
3Checksum Bypass
4Launch Control
5M Instrument Cluster LEDs
6DS2 Logging Extensions
7MAF Sensor Hack
8Boost Control Over Canister Purge Output (Experimental)
9Ignition Cut Limiter
10Alpha/N
11MIL Knock Indicator
12Daniel_F 430056 Update Fix
13E30/E34 Speed Sensor Accuracy Improvement

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We used this feature to create an 'All-In-One' solution for editing engine displacement independent functions, like Launch Control, EWS Delete, M3 Cluster functionality etc.

Important Notes:

This patch list is only compatible with the MS430069 software version.
All these features change the program code of the ECU so use it with caution and always correct checksums before flashing or use MS4X Dev Group Flasher from here which corrects them automatically.
If you are coming from a bootmode flashed 430056 EWS delete, it's recommended to bootmode flash a backup of the original binary to restore the ecu back to stock before flashing the 430069 firmware to avoid issues.
Bootmode flashing is only needed when you want to virginize the ECU and re-adapt it to a EWS module. Every other feature works without bootmode flashing!
Chipster MSS5X flasher contains a bug where it in some cases incorrectly calculates the program section checksum, so avoid using this software.

Download it here: Siemens_MS43_MS430069_Community_Patchlist_v2.5.xdf

Old Version: Siemens_MS43_MS430069_Community_Patchlist_v1.0.xdf

ECU Information

Parameters

UIF Vehicle Identification Number
UIF Software Number
UIF Service Number
UIF Assembly Number
ECU Number
ISN Value
Softwareversion

Explanation

This section shows the first entry of the user information fields (UIF), the ECU number, the ISN and most important the softwareversion.

Please keep in mind that the shown UIF values came with the initial flash from factory. There might be additional entries when the MS43 has been updated at the dealership.

Parameters

[PATCH] Immobilizer Bypass - Bypasses the immobilizer checks of the ECU
[PATCH] Clear Immobilizer Data - Virginizes the ECU by clearing all immobilizer related data

Explanation

This will bypass immobilizer checks that are made to prevent the car from starting with an unauthorized key or no key at all.

Note: On some cars it takes some time to start during the first crank. So crank it a bit longer than you are used to if the engine isn't starting up right away.

When virginzing the ECU by clearing the immobilizer data you want to overwrite data in the bootloader area, so bootmode flashing is needed.

To synchronize ISN and rolling codes between the ECU and the EWS3 module just use INPA or MS4X Dev Flasher.

Parameters

[PATCH] Checksum Bypass - Disables both checksum checks for the calibration data section

Explanation

Siemens implemented calibration checksum bypasses from factory into the firmware.

This feature is often misinterpreted with completely turning off all checksums. This is not the case and the program and boot loader section checksums will still need to be corrected to allow the engine to start.

The checksum bypass depends on changes in both the program and calibration section so it's crucial that both sections are patched simultaneously.

If for example the calibration section is overwritten with a calibration section that hasn't been checksum bypassed the ecu will always report a checksum error even if the checksums are corrected so use this feature with caution as incorrect use will result in a non-starting engine.

Since the MS4X Dev Group Flasher corrects all five checksums on the fly this checksum bypass is only needed when using old legacy tools to flash a calibration section.

Launch Control Default Values

Parameters

[PATCH] Launch Control - Implements code and default values for the launch control
c_conf_lc - Configuration switch to change the launch control behaviour.
- 0 = LC Disabled
- 1 = LC Enabled when clutch is pressed
- 2 = LC Enabled when clutch is pressed and cruise control LED is active
c_n_max_lc - Maximum engine speed while the launch control is engaged
c_pvs_min_lc - Minimum accelerator pedal position for the launch control to be activated
c_vs_max_lc - Maximum vehicle speed when the launch control disengages and switches back to normal limiters

Explanation

This implements a configurable launch control feature that sets an additional engine speed limiter up to a specific vehicle speed.

You should tweak c_vs_max_lc to be slightly below the regular vehicle speed in 1st gear for the configured limiter c_n_max_lc.

The c_conf_lc mode '2' is an additional feature to be able to heat up your tires before launching, as the launch control limiter will only become active when the cruise control LED in your cluster is active.

To make the launch control limiter less bouncy please set the soft and hard limiter hysteris to 32rpm (c_n_max_hys & c_n_max_hys_max).

Parameters

[PATCH] M3/M5 Cluster LED Mod - Implements code that controls the LEDs of the M3/M5 cluster
ldpm_toil_led - Oil temperatur axis to adjust the switch points of the led array for the warmup light feature
id_icl_toil_led__n - LEDs used at the given oil tempetature for the warmup light feature
ldpm_toil_led - Engine Speed axis to adjust the switch points of the led array for the shift light feature
id_icl_led__n - LEDs used at the given enginespeed for the shift light feature

Explanation

For an explanation of the values see M Cluster LED Control

You can retrofit the LEDs to a non-M cluster with this guide: Cluster M3 LED Retrofitting

Parameters

[PATCH] DS2 Logging Feature Enhancement - Implements code needed for the new logging command
[PATCH] DS2 Speed Increase - Increases how often the ECU processes DS2 commands

Explanation

Since MS43 only outputs a small amount of loggable values we created a custom DS2 logging command without slowing down logging rate.

This extends the stock command with the following values:

Individual Ignition Timing For All Cylinders And Av

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