Used Mercedes GLC Class transmission control module from a salvage yard

Vehicle-specific price guide

How much is a used Mercedes GLC Class transmission control module?

Asking prices from 466 salvage yards in 44 states, broken down by model year, condition grade, and fitment variant.
SKWritten bySaurabh Kumar · Co-Founder & CTO
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedOct 16, 2026
Strong coverage6,624 priced of 7,861 observed2 variantsMethodology v2.1 →

Part overview

About the Mercedes GLC Class transmission control module

What the transmission control module does, common failure signs, and prices across all vehicles: used transmission control module price guide →

Also known asTCMTransmission ComputerTransmission ModuleTCU
Price summary

A used Mercedes GLC Class transmission control module costs $25 to $569, with a median asking price of $124. Based on 6,624 priced salvage yard listings across the US, compatible across 2014–2025 (12 model years), updated Oct 16, 2026. Prices exclude shipping, core charges, and installation.

Grade A (excellent)$126
Grade B (good)$126
Grade C (fair)$65

Mercedes GLC Class transmission control module price snapshot

USD
Low
$25
Average
$136
High
$569
7,861 listings observed · 6,624 priced13d ago· How we price·

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Condition comparison

Price by part grade

Grade AClean / low wear$25–$5055,485 listings
Grade BStandard used$39–$569879 listings
Grade CVisible wear$49–$755 listings
Grade XUngraded$25–$350255 listings

Median by grade

Grade price comparison

Median asking price by seller-reported condition grade · $25–$569 overall range

Regional supply

Where the Mercedes GLC Class transmission control module is listed

We found priced Mercedes GLC Class transmission control module listings at 466 salvage yards across 44 states. Florida supplies the most, with 1,024 listings (15% of the total) from 41 yards. Location matters: yards in Illinois ask a median $65, while South Carolina yards ask $154, 137% more for the same part. Shipping usually costs less than that gap for smaller parts, so it can pay to buy out of state.

StateListingsYardsMedian ask
Florida1,02441$154+24%
Texas71036$101-19%
California58528$81-35%
Michigan57240$100-19%
Georgia32316$116-6%
South Carolina3238$154+24%
Illinois30721$65-48%
Alabama2386$111-10%

States with at least 10 priced listings. % is versus the $124 national median.

Replacement cost

What is the Mercedes GLC Class transmission control module replacement cost?

ESTIMATE
Used part
$124
Mercedes GLC Class median asking price
Labor
$95–$300
1–2 hours at $95–$150/hr
Estimated total
$220–$425
median used part + labor

Labor is a typical independent-shop range for transmission control module replacement, not a quote for your vehicle; it does not include programming and adaptive relearn procedure. The part price is the live median from the salvage-yard listings on this page. Full transmission control module replacement cost breakdown

Sources
  1. Labor time estimates: Part Price Guide labor database

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Current avg: $136 — we suggest $116 (15% below)

Condition grade (optional)

Fitment matters

Price by trim & variant (2024)

Model-year comparison

What does a Mercedes GLC Class transmission control module cost by year?

$82$140$198$257$315201620172018201920202021202220232024
Median asking price by model year · salvage yard listing data

Market analysis

How much does a used Mercedes GLC Class transmission control module cost?

Asking prices for a used Mercedes GLC Class transmission control module 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 94% premium over grade-C stock, with grade-A medians at $126.

Fitment variant moves the price more than most buyers expect. The most affordable variant we track, Non-Interchange search using only Mercedes GLC Class, lists at a $270 median, while Non-Interchange search using Mercedes GLC Class and similar models commands $304, a 13% gap inside the same part category. Confirm which variant your VIN requires before comparing quotes.

Model year matters too: 2017 units carry the lowest median at $91, while 2024 tops the table at $300. Parts from 2015–2023 are interchangeable, so if the 2017 fits your vehicle, it offers the best value across 9 compatible years.

Against comparable vehicles, the Mercedes GLC Class sits 8% below the Mercedes S Class ($135), 16% above the Mercedes E Class ($107), and 14% below the Mercedes GLE Class ($145) for the same part. The “similar vehicles” cards below open each comparison guide.

Buying a used transmission control module: what to check

  1. Match exact part numbers and software flash codes: Verify hardware numbers and firmware revision suffix letters, as valve body solenoid drivers vary between sub-models.
  2. Inspect connector pins for fluid wicking: Check harness plug sockets for fluid intrusion, as failing transmission harness seals push ATF into the TCM pins.
  3. Verify donor axle ratio and tire size match: Ensure donor vehicle axle ratios and tire sizes match to prevent shifting fault codes and limp-mode triggers.
  4. Confirm internal circuit board casing integrity: Check plastic housings for cracked mounting ears, housing cracks, or rattling components inside the module casing.
  5. Perform adaptive shift learn routine after install: Clear existing TCM adaptive tables using a scan tool so the module relearns your transmission's clutch pack wear.

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What other Mercedes GLC Class parts are priced?

Price comparisons

Compare Mercedes GLC Class transmission control module prices

Compare fitments

What do similar vehicles charge for this part?

Common questions

Mercedes GLC Class transmission control module FAQ

How much is a used transmission control module for a Mercedes GLC Class?

The median asking price is $124 across 6,624 priced listings from 466 yards. Grade-A units, the cleanest stock, have a median of $126. 2017 is the cheapest model year we track, with a median of $91.

How much does it cost to replace a Mercedes GLC Class transmission control module?

Using a used part, a Mercedes GLC Class transmission control module replacement typically runs $220–$425 all-in: the median used transmission control module for this model lists at $124, and independent-shop labor for transmission control module replacement typically takes 1–2 hours at $95–$150/hr ($95–$300). The labor figure does not include programming and adaptive relearn procedure. Labor is a national part-level estimate, not a quote for your vehicle.

Which Mercedes GLC Class model years does this price guide cover?

This guide currently has year-level pricing for 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016. Other model years contribute to the overall range where sellers listed them without a year breakdown.

Which Mercedes GLC Class transmission control module years are interchangeable?

Salvage-yard interchange data links Mercedes GLC Class transmission control module fitments across 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. 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.

Used Mercedes GLC Class Transmission Control Module Cost — From $25 to $569