Sale

BMW M Performance

N54 MSD81 DME/ECU

$2,409.72 $1,897.51 Save $512.21

SKU: 12148619751

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return

Description

The Genuine BMW Basic Engine Control Unit, also known as an ECU or DME, is a direct replacement part for specific N54 twin-turbo engine models. This unit is designed for BMWs equipped with the MSD81 DME/ECU and the 3.0 liter twin-turbo N54 engine. It supersedes previous BMW part numbers 12148618862 and 12148612998. Before purchasing, it is crucial to verify that your vehicle's current DME/ECU part number matches this unit to ensure compatibility. Special application notes indicate that this DME is for N54 models only. Specifically, it is for the E88 135i models and is not compatible with 135i coupes.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBMW M Performance
Part Number12148619751
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy