Mercedes S Class engine computer — 231 Type, Electronic Control Module, SL400 price snapshot
- Low
- $44
- Average
- $154
- High
- $300
Trim-specific price guide
Mercedes S Class Engine Computer — 231 Type, Electronic Control Module, SL400 prices
Pricing for the 231 Type, Electronic Control Module, SL400 variant of the Mercedes S Class engine computer, aggregated from 98 salvage yard listings across 2 model years.
SKWritten bySaurabh Kumar · Co-Founder & CTO
SK
Saurabh Kumar
Co-Founder & CTO, Part Price Guide
Built the pricing pipeline that collects and normalizes used OEM part listings from salvage yards and online marketplaces across the US.
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedOct 14, 2026AS
Ambika Sharma
Co-Founder & COO, Part Price Guide
12 years of project management and technical operations experience. Reviews price guides for sample size, fitment accuracy, and data freshness.
Price summary
A used Mercedes S Class engine computer (231 Type, Electronic Control Module, SL400) costs $44 to $300, with a median asking price of $159. Based on 98 priced salvage yard listings across the US, updated Oct 14, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$185
Grade B (good)$145
USD
Condition comparison
Price by part grade
Grade AClean / low wear$44–$30087 listings
Grade BStandard used$75–$2167 listings
Grade XUngraded$80–$1254 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $44–$300 | 87 | |
| Grade BStandard used | $75–$216 | 7 | |
| Grade XUngraded | $80–$125 | 4 |
Median by grade
Grade price comparison
Grade A$185
Grade B$145
Ungraded$125
Median asking price by seller-reported condition grade · $44–$300 overall range
Trim-specific context
How is the 231 Type, Electronic Control Module, SL400 priced differently?
This pricing covers the 231 Type, Electronic Control Module, SL400 variant of the Mercedes S Class engine computer, based on 98 priced listings across 2 model years (2015, 2016). Its $159 median is 34% below the Mercedes S Class engine computer overall median of $241.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Price by model year
What does a 231 Type, Electronic Control Module, SL400 cost by year?
Other trims
Other Mercedes S Class engine computer variants
217 Type, (Cpe), S550
2 yrs$261$65 – $500217 Type, (Cpe), S63
2 yrs$261$65 – $500217 Type, (Cpe), S65
2 yrs$524$420 – $608222 Type, Electronic Control Module, (Sdn), S400
2 yrs$197$100 – $400222 Type, Electronic Control Module, (Sdn), S550
2 yrs$261$65 – $500222 Type, Electronic Control Module, (Sdn), S550e (hybrid), gas engine controller
2 yrs$197$100 – $400222 Type, Electronic Control Module, (Sdn), S600
2 yrs$524$420 – $608222 Type, Electronic Control Module, (Sdn), S600 Maybach
1 yr$524$420 – $608222 Type, Electronic Control Module, (Sdn), S63
2 yrs$261$65 – $500Common questions
Mercedes S Class engine computer (231 Type, Electronic Control Module, SL400) FAQ
How much is a used Mercedes S Class engine computer (231 Type, Electronic Control Module, SL400)?
Based on 98 priced salvage-yard listings across 2 model years, a used Mercedes S Class engine computer in the 231 Type, Electronic Control Module, SL400 variant lists between $44 and $300, with a median asking price of $159.
Which Mercedes S Class years use the 231 Type, Electronic Control Module, SL400 engine computer?
The 231 Type, Electronic Control Module, SL400 variant appears in model years 2015, 2016. Prices and availability differ by year.
Is there a price difference between 231 Type, Electronic Control Module, SL400 condition grades?
Yes. Grade A has a median of $185, Grade B has a median of $145. Grade A parts are in excellent condition, B is good, and C is fair.