BMW E46 MS42 / MS43 Readiness Monitor Error Oxygen Sensors

Product Information 

This Service is useful if your DME (ECU) has an Error on the O2 Sensor Readiness Monitor and your local shop or dealer is saying you need to buy a NEW DME.

Most customers with this issue cannot pass their smog test or inspection. We can work on your ORIGINAL DME, you do not need to buy a USED or a NEW one. All you need to do is send us Your Original DME

Models Supported

• BMW 3 Series 2.8i Z3 Roadster 09/1998 06/2000 MS52TU Engine MS42 DME/ECU
• BMW 3 Series 3.0i Z3 Roadster 09/1999 06/2002 MS52TU Engine MS43 DME/ECU
• BMW 3 Series 328i E46 1999 to 2000 M52TU Engine MS42 DME/ECU
• BMW 3 series 330i / 330Ci E46 2003 to 2006 M54 / M56 Engine MS45.1 DME/ECU
• BMW X3 E83, X3 3.0i, SUV, 2003 to 2006 M54 Engine MS45.1 DME/ECU
• BMW 3 series 330i / 330Ci E46 2000 to 2003 M54 Engine MS43 DME/ECU 
• BMW 5 Series 528i E39 1999 to 2000 M52TU Engine MS42 DME/ECU
• BMW 5 series 530i E39 2000 to 2003 M54 Engine MS43 DME/ECU
• BMW X5 Series E53 3.0L 11/1999 To 06/2006 M54 Engine MS43 DME/ECU

DME / ECU SUPPORT LIST

MS42 DME/ECU Supported Part Numbers with M52TU Engines:

• 1429810 - 1429811 - 1430268 - 1430338
• 1430273 - 1438787 - 1430671 - 1430672
• 1430785 - 1430786 - 1430844 - 1430845
• 4509413 - 7500255 - 7500256 - 7505859
• 7506345 - 7526753 - 7526754 

MS43 DME/ECU Supported Part Numbers with M54 Engines:

• 7509942 - 7511570 - 7518111 - 7519308
• 7519309 - 7520873 - 7527919 - 7530854
• 7530855 - 7528050 - 7528051 - 7536649
• 7536649 - 7536650 - 7545150 - 7545200
• 7551615 - 7551616 - 7571016 - 7571289
• 7571017 - 7571290 - 7572342 - 7572371

MS45.1 DME/ECU Supported Part Numbers with M54 /M56 Engines:

• 7512523 - 7514833 - 7527015 - 7522584
• 7523810 - 7525937 - 7526791 - 7527110
• 7524718 - 7530211 - 7531500 - 7531442
• 7532142 - 7532903 - 7533652 - 7533654
• 7541336 - 7541344 - 7543158 - 7543224
• 7548770 - 7548772 - 7549388 - 7549391
• 7549795 - 7561382 - 7561383

DME / EWS Removal

• BMW E36 / Z3 (3 Series 1995 to 1998)
• BMW E39 (5 Series 1995 to 2002)
• BMW E46 (3 Series 1999 to 2006)
• BMW E53 (X5 Series 1998 to 2006)