Used 2021 BMW X3 engine computer – Electronic Control Module, 3.0L (M40i)

Year & trim-specific price guide

Used 2021 BMW X3 Engine Computer — Electronic Control Module, 3.0L (M40i) prices

Trim-specific pricing for the Electronic Control Module, 3.0L (M40i) variant of the 2021 BMW X3 engine computer, built from 38 real salvage yard listings with condition grade detail.

2021 BMW X3 · Electronic Control Module, 3.0L (M40i)

$400

median asking price

38 priced listings · $165–$712

Price summary

A used 2021 BMW X3 engine computer (Electronic Control Module, 3.0L (M40i)) costs $165 to $712, with a median asking price of $400. Based on 38 priced salvage yard listings across the US, updated Aug 28, 2026. Prices exclude shipping, core charges, and installation.

Grade A (excellent)$400
Grade B (good)$215

2021 BMW X3 engine computer — Electronic Control Module, 3.0L (M40i) price snapshot

USD
Low
$165
Average
$394
High
$712
38 priced listings used · last updated Aug 28, 2026· How we price·

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Reporting price for 2021 BMW X3 Engine Computer (Electronic Control Module, 3.0L (M40i))

Reason

Condition comparison

Price by part grade

Grade AClean / low wear$165–$71229 listings
Grade BStandard used$215–$2151 listings
Grade CVisible wearUpdating
Grade XUngraded$173–$4008 listings

Median by grade

Grade price comparison

Median asking price by seller-reported condition grade · $165–$712 overall range

Trim-specific context

How does the Electronic Control Module, 3.0L (M40i) compare?

This pricing covers the Electronic Control Module, 3.0L (M40i) variant of the 2021 BMW X3 engine computer, based on 38 priced listings. Its $400 median is 73% above the 2021 BMW X3 engine computer overall median of $231.

There are 2 other engine computer variants available for the 2021 BMW X3.

Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.

Same trim, other years

Electronic Control Module, 3.0L (M40i) in other model years

All years
202449 listings$479$204 – $1,200202347 listings$387$165 – $900202242 listings$387$82 – $733

Same year, other trims

What other 2021 BMW X3 engine computer variants are available?

Electronic Control Module, 2.0L, w/o plug-in hybrid

41 listings$150$70 – $420

Electronic Control Module, 2.0L, plug-in hybrid

32 listings$263$149 – $364

Back to full guide

2021 BMW X3 engine computer — all trims

View 2021 guide

Common questions

2021 BMW X3 engine computer (Electronic Control Module, 3.0L (M40i)) FAQ

How much is a used 2021 BMW X3 engine computer (Electronic Control Module, 3.0L (M40i))?

Based on 38 priced salvage-yard listings, a used 2021 BMW X3 engine computer in the Electronic Control Module, 3.0L (M40i) variant lists between $165 and $712, with a median asking price of $400.

Which years use the Electronic Control Module, 3.0L (M40i) engine computer?

The Electronic Control Module, 3.0L (M40i) variant appears in model years 2021, 2022, 2023, 2024. Prices and availability may differ by year.