2018 Audi A4 transmission control module price snapshot
- Low
- $28
- Average
- $141
- High
- $524
Year-specific price guide
Used 2018 Audi A4 Transmission Control Module prices
Year-specific used transmission control module pricing for the 2018 Audi A4, built from real salvage yard and junkyard listings with condition grade and fitment detail.
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 12, 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 2018 Audi A4 transmission control module
A used 2018 Audi A4 transmission control module costs between $28 and $524, with a median of $120 from 486 salvage yard listings.
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 2018 Audi A4 transmission control module costs $28 to $524, with a median asking price of $120. Based on 486 priced salvage yard listings across the US, compatible across 2017–2023 (6 model years), updated Oct 12, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$120
Grade B (good)$131
USD
Condition comparison
Price by part grade
Grade AClean / low wear$28–$524392 listings
Grade BStandard used$46–$35380 listings
Grade XUngraded$50–$17014 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $28–$524 | 392 | |
| Grade BStandard used | $46–$353 | 80 | |
| Grade XUngraded | $50–$170 | 14 |
Median by grade
Grade price comparison
Grade A$120
Grade B$131
Ungraded$100
Median asking price by seller-reported condition grade · $28–$524 overall range
Replacement cost
What is the 2018 Audi A4 transmission control module replacement cost?
- Used part
- $120
- 2018 Audi A4 median asking price
- Labor
- $95–$300
- 1–2 hours at $95–$150/hr
- Estimated total
- $215–$420
- 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
Fitment matters
Price by trim & variant
Driver Assist, camera control (RH trunk), (opt KA6), ID 4M0907428A34 listingsInterchange 2017–2019$101$51 – $350
Driver Assist, camera control (RH trunk), (opt KA6), ID 4M0907428B10 listingsInterchange 2017–2019$137$48 – $252
Driver Assist, camera control (RH trunk), (opt KA6), ID 4M0907428D4 listingsInterchange 2017–2019$150$80 – $319
Year-specific context
How does the 2018 Audi A4 compare?
The 2018 guide is based on 566 observed listings, including 486 with posted prices. Its $120 median is 2% below the Audi A4 guide's $123 median.
Among the 9 model years with current price data, 2018 ranks #3 from lowest to highest median.
Interchange data shows this part is also listed under model years 2017, 2019, 2020, 2022, 2023. Shopping across all 6 compatible years may surface better prices or condition grades.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Compare model years
What does a Audi A4 transmission control module cost in other years?
Keep browsing this vehicle
What other Audi A4 parts are priced?
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02wide ±194%
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Alternator
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05wide ±174%
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06wide ±95%
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07wide ±237%
Brake Caliper
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Rear Bumper Assembly
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09wide ±76%
Front Bumper
$795median
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Rear Bumper
$475median
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Car Radio
$151median
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12wide ±149%
Center Console
$134median
$45$445
13wide ±140%
AC Condenser
$155median
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14wide ±179%
Control Arm
$85median
$35$339
15tight ±13%
Differential
$200median
$200$250
16wide ±109%
Door Assembly
$800median
$150$1,899
17wide ±124%
Drive Shaft
$170median
$50$470
18wide ±100%
Engine
$2,475median
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19wide ±174%
Engine Computer
$175median
$35$644
20tight ±15%
Exhaust Manifold
$650median
$450$650
21wide ±125%
Fender
$353median
$90$974
22wide ±139%
Fog Light
$90median
$30$280
23wide ±121%
Front Seat
$196median
$75$550
24wide ±157%
Fuel Pump
$109median
$30$373
25wide ±110%
Fuel Tank
$191median
$63$483
26wide ±169%
Grille
$350median
$55$1,240
27wide ±172%
Headlight Assembly
$1,151median
$182$4,144
28wide ±60%
Heater Core
$156median
$66$252
29wide ±76%
Hood
$719median
$250$1,350
30spread ±41%
Ignition Switch
$78median
$60$124
31
Instrument Cluster
Price data updating
32wide ±138%
Intake Manifold
$90median
$50$299
33wide ±213%
Master Cylinder
$51median
$30$247
34wide ±178%
Side Mirror
$343median
$55$1,275
35spread ±22%
Power Steering Pump
$325median
$200$340
36wide ±97%
Quarter Panel
$475median
$175$1,100
37wide ±237%
Radiator
$152median
$30$751
38wide ±144%
Rear View Mirror
$100median
$32$320
39wide ±218%
Starter
$85median
$25$395
40wide ±178%
Steering Column
$156median
$45$599
41wide ±157%
Steering Rack
$350median
$60$1,158
42wide ±180%
Steering Wheel
$204median
$65$799
43wide ±196%
Strut
$95median
$40$412
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Sunroof
$164median
$40$640
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Tail Light
$200median
$35$743
46wide ±97%
Tailgate
$1,000median
$160$2,102
47wide ±137%
Throttle Body
$91median
$35$285
48
Torque Converter
Price data updating
49spread ±50%
Transfer Case
$1,335median
$710$2,033
50wide ±257%
Transmission
$598median
$120$3,193
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Turbocharger
$400median
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$75median
$25$188
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Wheels
$220median
$54$774
54wide ±64%
Window Regulator
$80median
$50$153
Common questions
2018 Audi A4 transmission control module FAQ
How much is a used 2018 Audi A4 transmission control module?
Based on 486 priced salvage-yard listings, a used 2018 Audi A4 transmission control module lists between $28 and $524, with a median asking price of $120.
How much does it cost to replace a 2018 Audi A4 transmission control module?
Using a used part, a 2018 Audi A4 transmission control module replacement typically runs $215–$420 all-in: the median used transmission control module for this year lists at $120, 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.
Will a 2018 Audi A4 transmission control module fit another year?
Based on salvage-yard interchange data, listings for the 2018 Audi A4 transmission control module also appear under model years 2017, 2019, 2020, 2022, 2023, suggesting these years share compatible fitments. Always verify the exact part number, drivetrain, trim, and your VIN before buying — interchange compatibility can vary by variant.
How much is a 2018 Audi A4 tcm?
A tcm is another name for a transmission control module. The prices on this page cover the 2018 Audi A4 transmission control module — median $120, from 486 listings.