Used 2021 Mercedes C Class engine computer – 205 Type, (Electronic Control Module), C300

Year & trim-specific price guide

Used 2021 Mercedes C Class Engine Computer — 205 Type, (Electronic Control Module), C300 prices

Trim-specific pricing for the 205 Type, (Electronic Control Module), C300 variant of the 2021 Mercedes C Class engine computer, built from 48 real salvage yard listings with condition grade detail.

2021 Mercedes C Class · 205 Type, (Electronic Control Module), C300

$129

median asking price

48 priced listings · $52–$919

Price summary

A used 2021 Mercedes C Class engine computer (205 Type, (Electronic Control Module), C300) costs $52 to $919, with a median asking price of $129. Based on 48 priced salvage yard listings across the US, updated Aug 23, 2026. Prices exclude shipping, core charges, and installation.

Grade A (excellent)$221
Grade B (good)$123

2021 Mercedes C Class engine computer — 205 Type, (Electronic Control Module), C300 price snapshot

USD
Low
$52
Average
$192
High
$919
48 priced listings used · last updated Aug 23, 2026· How we price·

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Reporting price for 2021 Mercedes C Class Engine Computer (205 Type, (Electronic Control Module), C300)

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Condition comparison

Price by part grade

Grade AClean / low wear$70–$60031 listings
Grade BStandard used$113–$91910 listings
Grade CVisible wearUpdating
Grade XUngraded$52–$1307 listings

Median by grade

Grade price comparison

Median asking price by seller-reported condition grade · $52–$919 overall range

Trim-specific context

How does the 205 Type, (Electronic Control Module), C300 compare?

This pricing covers the 205 Type, (Electronic Control Module), C300 variant of the 2021 Mercedes C Class engine computer, based on 48 priced listings. Its $129 median is 52% below the 2021 Mercedes C Class engine computer overall median of $266.

There are 3 other engine computer variants available for the 2021 Mercedes C Class.

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

Same trim, other years

205 Type, (Electronic Control Module), C300 in other model years

All years
202035 listings$215$85 – $385201949 listings$200$100 – $356201840 listings$78$75 – $200

Same year, other trims

What other 2021 Mercedes C Class engine computer variants are available?

205 Type, (Electronic Control Module), C63

47 listings$400$196 – $673

205 Type, (Electronic Control Module), C63s

47 listings$400$196 – $673

205 Type, (Electronic Control Module), C43

42 listings$215$100 – $317

Back to full guide

2021 Mercedes C Class engine computer — all trims

View 2021 guide

Common questions

2021 Mercedes C Class engine computer (205 Type, (Electronic Control Module), C300) FAQ

How much is a used 2021 Mercedes C Class engine computer (205 Type, (Electronic Control Module), C300)?

Based on 48 priced salvage-yard listings, a used 2021 Mercedes C Class engine computer in the 205 Type, (Electronic Control Module), C300 variant lists between $52 and $919, with a median asking price of $129.

Which years use the 205 Type, (Electronic Control Module), C300 engine computer?

The 205 Type, (Electronic Control Module), C300 variant appears in model years 2018, 2019, 2020, 2021. Prices and availability may differ by year.