EGR temps address for EDC16CP35

by **573fan11** » Wed Aug 27, 2025 12:28 pm

Hi,

I am looking to do a Dynamic EGR for my X5 E70 EDC16CP35

EDC16CP35
HW: 0281015852
SW: 1037500776

I'll post here what I have so far. The EGR map addresses:

CC55E - EGR Hysteresis map 16x1
CC5C4 - EGR Hysteresis map 16x1

I am looking for EGR temp high and temp low. EGR_tClntWrmHi/Lo .

Thanks

by **Shooting** » Wed Aug 27, 2025 2:35 pm

573fan11 wrote:Hi,

I am looking to do a Dynamic EGR for my X5 E70 EDC16CP35

EDC16CP35
HW: 0281015852
SW: 1037500776

I'll post here what I have so far. The EGR map addresses:

CC55E - EGR Hysteresis map 16x1
CC5C4 - EGR Hysteresis map 16x1

I am looking for EGR temp high and temp low. EGR_tClntWrmHi/Lo .

Thanks

Start with a post in "Introduce Yourself" then add your original tune

wbr

by **573fan11** » Wed Aug 27, 2025 4:19 pm

[quote][/quote]Hey.

Done.

This is my original Kess V2 OBD full dump.

by **573fan11** » Wed Aug 27, 2025 9:43 pm

I think they might be:

Param Addr Val RAW Scaled (°C)
AirCtl_tClntWrmHi_C 0xCC668 3651 92.0°C
AirCtl_tClntWrmLo_C 0xCC66A 2381 –35.0°C

This would mean that EGR is stopped at 92 C degree and turned on at -35 ?

Thanks

by **573fan11** » Thu Aug 28, 2025 2:20 pm

I found them

Temp [°C] = Raw × 0.1 – 273.1

CC672 - AirCtl_tClntWrmHi_C = 0x3811 → 108 °C
CC674 - AirCtl_tClntWrmLo_C = 0x3751 → 102 °C

I am not sure if these values are used to control only EGR on/off or not. Or maybe we have others.

by **573fan11** » Thu Aug 28, 2025 5:29 pm

Based on a A2L file looks like the EGR control in indeed affected by those 2 params beside others.

Code: Select all: /begin FUNCTION airctl_monitor "Abgasr\FCckf\FChrregelung - \DCberwachung und Abschaltung" /begin DEF_CHARACTERISTIC AirCtl_dnSurgeHigh_CUR AirCtl_dnSurgeLow_CUR AirCtl_dqCurrRmpUp_C AirCtl_dqCurrRmpDwn_C AirCtl_dqRawInjMass_C AirCtl_drBrkRmpUp_C AirCtl_drBrkRmpDwn_C AirCtl_tiqRawDT1_C AirCtl_kdDT1qRaw_C AirCtl_mDiff_C AirCtl_nAvrgHHi_C AirCtl_nAvrgHLo_C AirCtl_nAvrgLHi_C AirCtl_nAvrgLLo_C AirCtl_nHealHi_C AirCtl_nHealLo_C AirCtl_nLim_C AirCtl_nLoIdl_C AirCtl_nOvrRun_C AirCtl_pAirHi_C AirCtl_pAirLo_C AirCtl_qDiff_C AirCtl_qGear_C AirCtl_qHealHi_C AirCtl_qHealLo_C AirCtl_qHiRgn_CUR AirCtl_qHi_CUR AirCtl_qLoRgn_CUR AirCtl_qLo_CUR AirCtl_qOvrRun_C AirCtl_qSurgeHigh_CUR AirCtl_qSurgeLow_CUR AirCtl_qUnBalLim_C AirCtl_rbrkDelta_C AirCtl_rBrkXHigh_C AirCtl_rBrkXLow_C AirCtl_rEGRDflVal12_C AirCtl_rEGRDflVal1_C AirCtl_rEGRDflVal4_C AirCtl_rEGRDflVal5_C AirCtl_rEGRDflVal7_C AirCtl_rEGRDflVal8_C AirCtl_stInhGvnrDvt_C AirCtl_stMskLoIdl_C AirCtl_stMskOvrRun_C AirCtl_stRgnAirCtlshOff_C AirCtl_stRgnCur_C AirCtl_stRgnShOff_C AirCtl_tiSurgePT1_C AirCtl_swtHighLoadCond_C AirCtl_swtHighOvrRunCond_C AirCtl_tAirHHi_C AirCtl_tAirHLo_C AirCtl_tAirLHi_C AirCtl_tAirLLo_C AirCtl_tClntCldHi_C AirCtl_tClntCldLo_C AirCtl_tClntWrmHi_C AirCtl_tClntWrmLo_C AirCtl_tiCldStrt_CUR AirCtl_tiClth_C AirCtl_tiMaxDef2_C AirCtl_tiMaxOk2_C AirCtl_DebGvnrDvtMaxDef_C AirCtl_DebGvnrDvtMaxOk_C AirCtl_tiMinDef2_C AirCtl_tiMinOk2_C AirCtl_DebGvnrDvtMinDef_C AirCtl_DebGvnrDvtMinOk_C AirCtl_tiDebPlateBrkDef_C AirCtl_tiDebPlateBrkOk_C AirCtl_tidqRawOn_C AirCtl_tiLoIdl_C AirCtl_tiOvrRun_C AirCtl_drTVA2SlpLimUp_C AirCtl_drTVA2SlpLimDown_C AirCtl_drTVASlpLimUp_C AirCtl_drTVASlpLimDown_C AirCtl_uBattThres_C AirCtl_vLim_C /end DEF_CHARACTERISTIC /begin IN_MEASUREMENT CTSCD_tClnt Eng_nAvrg /end IN_MEASUREMENT /end FUNCTION

by **Shooting** » Fri Aug 29, 2025 8:54 pm

573fan11 wrote:
Hey.

Done.

This is my original Kess V2 OBD full dump.

This should help you

wbr

Code: Select all: Address;Name;Size $C7088;Driver's Wish;8x14 $C7200;Driver's Wish;8x14 $C8988;EGR;16x13 $C8BE0;EGR;16x13 $C8E24;EGR;16x13 $C92EA;BMW MAF;16x16 $C99BA;EGR;16x16 $CC55E;EGR Hysteresis;16x1 $CC5C4;EGR Hysteresis;16x1 $CE81A;Map Sensor;4x1 $CEEDE;Torque Limiter Limp;10x1 $CEF08;Torque Limiter Limp;10x1 $CEF32;Torque Limiter Limp;10x1 $CEF5C;Torque Limiter Limp;10x1 $CEF86;Torque Limiter Limp;10x1 $CF028;Torque Back Pressure Limiter;8x11 $D6824;DPF Switch;1x1 $D8FD8;Torque Limiter;8x21 $D96CE;BMW ATM Correction;9x9 $D9798;BMW ATM Correction;9x9 $D9924;Speed Temp Correction;7x7 $D99A6;Speed Temp Correction;7x7 $D9A2A;SVRL;1x1 $D9A8C;Torque Limiter;8x20 $D9BF8;Torque Limiter;21x1 $D9C60;Torque Limiter;8x21 $D9DC6;Torque Limiter;10x1 $D9E06;Torque Limiter;21x1 $DBB6E;Lambda calculations;16x16 $DBDB2;Lambda calculations;16x16 $DC000;Lambda calculations;16x16 $DC244;Lambda calculations;16x16 $DC488;Lambda calculations;16x16 $DC6D6;Lambda calculations;16x16 $DC91A;Lambda calculations;16x16 $DCB68;Lambda calculations;16x16 $DCDAC;Lambda calculations;16x16 $DD5B6;IQ to Nm Conversion;16x16 $DD7EE;IQ to Nm Conversion;16x10 $DDAE2;IQ to Nm Conversion;24x22 $DDFAA;IQ to Nm Conversion;16x16 $DE1EE;IQ to Nm Conversion;16x16 $DE9BE;Start of Injection;16x16 $DEC02;Turbo Boost;16x16 $DF96E;Gear Limiter;10x1 $DF9FE;Gear Limiter;10x1 $DFA28;Gear Limiter;10x1 $DFA52;Gear Limiter;10x1 $DFA7C;Gear Limiter;10x1 $DFAA6;Gear Limiter;10x1 $DFAD0;Gear Limiter;10x1 $DFAFA;Gear Limiter;10x1 $DFB24;Gear Limiter;10x1 $E25D4;Start of Injection;16x16 $E2822;Start of Injection;16x16 $E2A70;Start of Injection;16x16 $E2CB4;Start of Injection;16x16 $E4FB4;Start of Injection;16x16 $E51F8;Start of Injection;16x16 $ED01C;IQ Limit by Fuel Temp.;5x6 $ED642;Injection Duration CR;29x16 $F0D78;N75;16x16 $F12B6;N75;16x16 $F14FA;N75;16x16 $F1B2E;N75;16x16 $F267E;Turbo Boost;16x16 $F28C2;Turbo Boost;16x16 $F2B0A;Turbo Boost;16x16 $F2F8E;Turbo Boost Limiter;16x14 $F3192;SVBL;1x1 $F3B9E;N75;16x16 $F41C2;Turbo Boost;16x15 $F4406;Turbo Boost;16x15 $F464A;Turbo Boost;16x15 $F4878;Turbo Boost Limiter;10x10 $F493E;SVBL;1x1 $F9C8A;BMW Speed Temp Limiter;3x3 $FA1EE;Rail Regulation;12x8 $FA534;BMW Rail Limiter 2;4x1 $FA9AE;Rail Regulation;8x8 $FAAE4;Rail Pressure;16x16 $FAE34;Rail Pressure;16x16 $FB2C6;Rail Pressure;16x16 $FB8F8;Rail Limit by Temperature;8x8 $FB9AC;Rail Limit by Temperature;5x6 $FBA02;Rail Limiter;6x5 $FC45E;SV Rail Limiter;1x1 $FC496;Rail Sensor;4x1 $FCFA2;Start IQ;10x8

by **573fan11** » Sat Aug 30, 2025 3:23 pm

Thanks,

It helped, also found this tool: https://www.edcmasterhp.com/index.php?menu=ecuanalyze&unload=1

To find the 2 EGR address I used an older A2L file for EDC16 and its OLS project, found the 2 values and matched them with the ones from my file. 100% match.

https://github.com/zarboz/BMW-XDFs/tree/temp/Damos%20and%20A2L%20dumps

by **573fan11** » Wed Jun 10, 2026 4:03 pm

Hi,

I have tried a DPF off solution for my BMW 35d X5 but for some reasons error code 41aa appears each time I start the car at idle. I have checked the sensors with engine off and all looks ok. If I revert the software, all looks ok.

Need some help to do this DPF off without having that 41aa. Also I do not want to remove that from DTC codes.

Thanks,
Stefan