Mercedes S Class engine computer price snapshot
- Low
- $44
- Average
- $314
- High
- $1,150
Vehicle-specific price guide
How much is a used Mercedes S Class engine computer?
Asking prices from 223 salvage yards in 31 states, broken down by model year, condition grade, and fitment variant.
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.
Part overview
About the Mercedes S Class engine computer
What the engine computer does, common failure signs, and prices across all vehicles: used engine computer price guide →
Also known asECUECMPCMEngine Control ModuleEngine Control UnitPowertrain Control Module
Price summary
A used Mercedes S Class engine computer costs $44 to $1,150, with a median asking price of $241. Based on 2,019 priced salvage yard listings across the US, compatible across 2013–2024 (12 model years), updated Oct 14, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$241
Grade B (good)$240
Grade C (fair)$100
USD
Condition comparison
Price by part grade
Grade AClean / low wear$44–$1,1501,706 listings
Grade BStandard used$75–$569181 listings
Grade CVisible wear$100–$1002 listings
Grade XUngraded$50–$500130 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $44–$1,150 | 1,706 | |
| Grade BStandard used | $75–$569 | 181 | |
| Grade CVisible wear | $100–$100 | 2 | |
| Grade XUngraded | $50–$500 | 130 |
Median by grade
Grade price comparison
Grade A$241
Grade B$240
Grade C$100
Ungraded$325
Median asking price by seller-reported condition grade · $44–$1,150 overall range
Regional supply
Where the Mercedes S Class engine computer is listed
We found priced Mercedes S Class engine computer listings at 223 salvage yards across 31 states. California supplies the most, with 574 listings (28% of the total) from 41 yards. Location matters: yards in Illinois ask a median $150, while Florida yards ask $613, 309% more for the same part. Shipping usually costs less than that gap for smaller parts, so it can pay to buy out of state.
| State | Listings | Yards | Median ask |
|---|---|---|---|
| California | 574 | 41 | $211-12% |
| Michigan | 260 | 22 | $203-16% |
| Indiana | 198 | 9 | $268+11% |
| Texas | 168 | 29 | $236-2% |
| Missouri | 109 | 7 | $301+25% |
| Illinois | 100 | 17 | $150-38% |
| Florida | 80 | 12 | $613+154% |
| Arizona | 62 | 5 | $200-17% |
States with at least 10 priced listings. % is versus the $241 national median.
Replacement cost
What is the Mercedes S Class engine computer replacement cost?
- Used part
- $241
- Mercedes S Class median asking price
- Labor
- $95–$450
- 1–3 hours at $95–$150/hr
- Estimated total
- $335–$690
- median used part + labor
Labor is a typical independent-shop range for engine computer replacement, not a quote for your vehicle; it does not include programming and key relearn procedure. The part price is the live median from the salvage-yard listings on this page. Full engine computer replacement cost breakdown
Sources
- Labor time estimates: Part Price Guide labor database
Model-year comparison
What does a Mercedes S Class engine computer cost by year?
20242 listings$306$125 – $306202326 listings$1,038$600 – $1,150202231 listingsFits 5 years$446$150 – $962202178 listingsFits 6 years$512$139 – $9622020468 listingsFits 10 years$300$50 – $1,0372019180 listingsFits 9 years$295$60 – $1,0372018237 listingsFits 9 years$323$44 – $1,0372017367 listingsFits 9 years$241$44 – $6082016478 listingsFits 10 years$193$45 – $6082015471 listingsFits 10 years$200$44 – $608
Market analysis
How much does a used Mercedes S Class engine computer cost?
Asking prices for a used Mercedes S Class engine computer are unusually spread out: the top listing asks more than ten times what the cheapest does, so which unit you pick matters more than the median. Condition matters: grade-A units (lowest mileage, best condition) carry roughly a 141% premium over grade-C stock, with grade-A medians at $241.
Model year matters too: 2016 units carry the lowest median at $193, while 2023 tops the table at $1,038. Parts from 2013–2022 are interchangeable, so if the 2016 fits your vehicle, it offers the best value across 10 compatible years.
Against comparable vehicles, the Mercedes S Class sits 115% above the Honda Accord ($112), 117% above the Honda Civic ($111), and 91% above the Hyundai Elantra ($126) for the same part. The “similar vehicles” cards below open each comparison guide.
Buying a used engine computer: what to check
- Match hardware and service numbers: Ensure hardware revision codes and circuit board part numbers match exactly, as pinouts change mid-model year.
- Inspect multi-pin connector headers: Check header pins for bending, green copper oxidation, or burnt circuit board traces inside the wiring sockets.
- Verify immobilizer programming requirements: Plan for anti-theft security relearn procedures or ECU re-flashing before the replacement computer will start the engine.
- Confirm donor transmission and emissions spec: Ensure the donor vehicle used the same transmission type and regional emissions package to prevent fault codes.
- Check aluminum casing seals: Inspect housing screws and perimeter rubber gaskets for white oxidation or breaks that indicate past water intrusion.
Keep browsing this vehicle
What other Mercedes S Class parts are priced?
01wide ±269%
Transmission Control Module
$135median
$25$750
02wide ±259%
Brake Caliper
$280median
$50$1,499
03wide ±198%
Air Bag
$225median
$50$940
04wide ±239%
Car Radio
$271median
$55$1,350
05wide ±203%
Strut
$350median
$78$1,500
06wide ±116%
Side Mirror
$600median
$210$1,599
07wide ±134%
Wheels
$475median
$125$1,400
08wide ±209%
Axle Shaft
$278median
$50$1,212
09wide ±222%
Control Arm
$180median
$50$849
10wide ±118%
Headlight Assembly
$1,450median
$425$3,850
11wide ±166%
Radiator
$200median
$55$720
12wide ±182%
Fuel Pump
$150median
$33$580
Price comparisons
Compare Mercedes S Class engine computer prices
Engine Computercompare
HondaAccordvsMercedesSClass
Accord$112
Class$241
$129 diff10,224 listings
Engine ComputercompareHondaCivicvsMercedesSClass
Civic$111
Class$241
$130 diff10,059 listings
Engine ComputercompareHyundaiElantravsMercedesSClass
Elantra$126
Class$241
$115 diff9,615 listings
Engine ComputercompareHondaPilotvsMercedesSClass
Pilot$125
Class$241
$116 diff7,132 listings
Engine ComputercompareHyundaiTucsonvsMercedesSClass
Tucson$156
Class$241
$85 diff6,825 listings
Engine ComputercompareToyotaRAV4vsMercedesSClass
RAV4$161
Class$241
$80 diff6,175 listings
Compare fitments
What do similar vehicles charge for this part?
Acurawide ±167%
Acura ILX
$138median
$40$500
Acurawide ±153%
Acura Integra
$155median
$50$525
Acurawide ±219%
Acura MDX
$135median
$35$625
Acurawide ±162%
Acura RDX
$155median
$42$543
Acurawide ±208%
Acura TLX
$125median
$33$553
Audiwide ±174%
Audi A4
$175median
$35$644
Mercedeswide ±264%
Mercedes C Class
$218median
$50$1,200
Mercedeswide ±193%
Mercedes E Class
$200median
$55$825
Mercedeswide ±236%
Mercedes GLA Class
$150median
$45$754
Mercedeswide ±185%
Mercedes GLC Class
$220median
$65$880
Mercedeswide ±291%
Mercedes GLE Class
$200median
$35$1,200
Mercedeswide ±181%
Mercedes Sprinter
$200median
$56$780
Common questions
Mercedes S Class engine computer FAQ
How much is a used engine computer for a Mercedes S Class?
The median asking price is $241 across 2,019 priced listings from 223 yards. Grade-A units, the cleanest stock, have a median of $241. 2016 is the cheapest model year we track, with a median of $193.
How much does it cost to replace a Mercedes S Class engine computer?
Using a used part, a Mercedes S Class engine computer replacement typically runs $335–$690 all-in: the median used engine computer for this model lists at $241, and independent-shop labor for engine computer replacement typically takes 1–3 hours at $95–$150/hr ($95–$450). The labor figure does not include programming and key relearn procedure. Labor is a national part-level estimate, not a quote for your vehicle.
Which Mercedes S Class model years does this price guide cover?
This guide currently has year-level pricing for 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015. Other model years contribute to the overall range where sellers listed them without a year breakdown.
Which Mercedes S Class engine computer years are interchangeable?
Salvage-yard interchange data links Mercedes S Class engine computer fitments across 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024. Searching all 12 years widens the pool of units; confirm the part number against your VIN, since trim or drivetrain can split an interchange group.