Siemens DME MS43 Control Unit (Unprogrammed) - E46 325i/330i, E39 525i/530i, E53 X5 3.0i, Z3 2.5i/3.0i

Replacement ECU for MS43 and M54 engines.

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This part is listed by BMW as BMW part number 12147551616 (12 14 7 551 616) and is described as a new DME / ECU control unit for the M54 engine in E46 325i/330i (up to 2/2003 production), E39 525i/530i, E53 X5 3.0i, and Z3 2.5i/3.0i models.

This is a DME that is newly refurbished. It will be supplied un-programmed and not matched to a EWS module. It will need complete programming and coding to your car (professional BMW coding tools required).

A $166.50 core charge is included in the price shown. This core charge may be refunded upon the return of your original DME in usable condition (as determined by BMW).

A core charge applies to this purchase. The supply of original parts for rebuilding keeps the final purchase price low. The core must match the part that was supplied in terms of fitment, type, application, accessories, and hardware. Damaged or modified cores will not receive a refund. A core charge can only be refunded once the core has been inspected and approved. Click here for our Core Policy.

This is a Genuine BMW MS43 DME with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.

BMW Fitments:

3 Series
E46 (99-05) > 325Ci
E46 (99-05) > 325i
E46 (99-05) > 325xi
E46 (99-05) > 330Ci
E46 (99-05) > 330i
E46 (99-05) > 330xi
5 Series
E39 (97-03) > 525i
E39 (97-03) > 530i
X5 Series
E53 X5 (00-06) > X5 3.0i M54
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 2.5
E36/7 / E36/8 Z3 (96-02) > Z3 3.0
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