The Automotive Clinic — Tuning Files

Software 458996-1346899 Bosch MG1CS003

244 master projects carry this software number, 215 with a modified version. Upload your read to have the tune transferred into your own file, or buy the file exactly as we hold it by software number. Modified files from $275, original (stock) files from $75 AUD. Trade accounts see their own pricing after log in.

Fitted to

BMW 3 Serie - Sedan ×24
BMW 320i ×23
BMW ×11
BMW 4 Serie - Coupe ×9
BMW 330i ×9
BMW 3 Serie - Sedan 330i ×8
BMW 1 Serie - 5drs ×8
BMW 4er 420i ×7
BMW 3er 330i ×5
BMW 420i ×5

ECU

Bosch / Bosch MG1CS003 / MD1CS003
MG1CS003 / MG1CS201 / MG1CS003 (DME_841)

Hardware / part numbers

#D1#DST#DME8.4.1-B48-LK-B20-M0-F030-EU6-
#DME8.4.1-B48-LK-B20-M0-F020-ECE-EU6c--_
#DME_84T0__________#C2#DST#DME84T0-B48-S
#DME__840__________#D1#DST#DME8.4-B46-SP
#DME__840__________#D1#DST#DME8.4-B48-SP
#DME__841__________#D1#DST#DME8.4.1-B48-
#DME__8x0#D1#PST
#DME__8x1#D1#PST
0000307200011C
00003074_3_19_10
000034900A1003
00005D55288C06
00061610_33_141_7
00061706_22_141_7
0261S1004E
0261S101YU
0261S17142
B48-LK-B20-M0-F032-ECE-EU6
DME8.4-B48-SP15-O0-B20-G11-EU6-HG-AG--_L
DME8.4-B48-SP15-O0-B20-G30-ECE-EU6c---_H
DME8.4.1-B48-LK-B20-M0-F020-ECE-EU6c--_H
DME8.4.1-B48-LK-B20-M0-F020-EU6-HGAG--_L
DME8.4.1-B48-LK-B20-M0-F030-ECE-EU6c--_H
DME8.4.1-B48-LK-B20-M0-F030-EU6-HGAG--_L
DME8.4.1-B48-LK-B20-M0-F032-ECE-EU6c--_H
DME8.4.1-B48-LK-B20-O0-F020-ECE-EU6c- _H
DME8.4.1-B48-LK-B20-O0-F022-EU6-HGAG--_L
DME8.4.1-B48-LK-B20-O0-F030-ECE-EU6c--_H
DME8.4.1-B48-LK-B20-O0-F034-ECE-EU6c--_H
DME841-B46-LK-B20-O0-F30-USA-KOR _SULEV3
DME841-B46-LK-B20-O0-F30-USA-KOR------_S
DME84T0-B48-S15A-G01-B48B20O1-AWD-ECE-RE
DME84T0-B48-S15A-G11-B48B20O1-RWD-MKS-TR
DME84T0-B48-S15A-G12-B48B20O1-RWD-CHN-TC
DME84T0-B48-S15A-G20-B48B20O1-AWD-ECE-RE
DME84T0-B48-S15A-G20-B48B20O1-AWD-ECE-TE
DME84T0-B48-S15A-G20-B48B20O1-RWD-ECE-0E
DME84T0-B48-S15A-G20-B48B20O1-RWD-ECE-_E
DME84T0-B48-S15A-G20-B48B20O1-RWD-ECE-RE
DME84T0-B48-S15A-G20-B48B20O1-RWD-ECE-TE
DME84T0-B48-S15A-G20-B48B20O1-RWD-JPN-TJ
DME84T0-B48-S15A-G20-B48B20O1-RWD-MKS-_R
DME84T0-B48-S15A-G20H-B48B20O1-RWD---TEC
DME84T0-B48-S15A-G28-B48B20O1-AWD-CHN-RC
DME84T0-B48-S15A-G28-B48B20O1-RWD-CHN-
DME84T0-B48-S15A-G28-B48B20O1-RWD-CHN-RC
DME84T0-B48-S15A-G28-B48B20O1-RWD-CHN-TC
DME84T0-B48-S15A-G29-B48B20O1-RWD-ECE-RE
DME84T0-B48-S15A-G30-B48B20O1-AWD-ECE-R-
DME84T0-B48-S15A-G30-B48B20O1-RWD-ECE-_E
DME84T0-B48-S15A-G30-B48B20O1-RWD-ECE-RE
DME84T0-B48-S15A-G30-B48B20O1-RWD-ECE-T-
DME84T0-B48-S18T-J29-B48B20O1-RWD-ECE-TE
DME_84T0
MG1CS201_BX8TUE_R4C2H6H7B
NO
please see id
R4C9J797B
Undefined
XXXXXXX

Read with

#EPST:R1C9J754B______#R1C9J754BAETX5
#EPST:R1C9F359B______#R1C9F359BAFAX2
R4C9H6D6B
#EPST:R4C9H695B______#R4C9H695BOOYX3
#EPST:R1C9J754B______#R1C9J754BAFAX4
#EPST:R0C9H453B______#R0C9H453BAGVX7

Modifications available

Have the read? Upload it.
Your own file comes back with the modification built in, checked for a 100% match before it's offered.
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The stock or modified file exactly as we hold it, to write with your tool. Make sure your ECU carries 458996-1346899 and the same hardware number.
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Vehicle pages: BMW 1 Serie - 5drs · BMW 1-Series · BMW 1er · BMW 2-Series · BMW 3 GT · BMW 3 Serie - Gran Turismo · BMW 3 Serie - Sedan · BMW 3 Serie - Sedan Hybrid · BMW 3 Serie - Sedan iL · BMW 3-Series · BMW 3er · BMW 4 GC · BMW 4 Serie - Coupe · BMW 4-Series Gran Coupe · BMW 4er · BMW 5 Serie - Sedan · BMW 5-Series · BMW 5er · BMW 7 Serie - Sedan · BMW 7 Serie - Sedan iL · BMW 7-Series · BMW 7er · BMW F30/F31 LCI · BMW F31 · BMW F32/F33 · BMW F34 · BMW G30 · BMW X1 · BMW X3 SUV · BMW Z4 · Toyota Supra

Files are supplied for off-road / motorsport use; checksums are corrected by your flashing tool on write. Last project update 2026-04-10.

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