Vehicle price comparison
Mercedes S Class vs Kia Seltos Transmission Control Module prices
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.
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 face-off
Median price comparison
Condition comparison
How does the price differ by part grade?
Market analysis
Why does the Kia Seltos transmission control module cost more?
A used Kia Seltos transmission control module carries a median asking price of $150, which is 10% higher than the Mercedes S Class at $135. Supply also plays a role: Mercedes S Class has 32,212 priced listings versus 2,014 for Kia Seltos, and more listings generally mean more choices and more competitive pricing.
Grade A (excellent condition) parts make up 89% of Mercedes S Class listings compared to 73% for the Kia Seltos, so buyers looking for top-condition units will find more options on the Mercedes S Class side.
Our guide covers 10 model years for the Mercedes S Class (2015–2024) but only 5 for the Kia Seltos (2021–2025), so the Mercedes S Class data reflects a broader range of generations.
The Mercedes S Class transmission control module is interchangeable across 14 model years versus just 9 for the Kia Seltos — that wider compatibility window means more donor vehicles in salvage yards and tends to push prices lower.
At Grade B (good) condition, the Kia Seltos is 30% cheaper ($144 vs $206) — the gap narrows compared to the overall median difference.
Buyer's checklist
What to check before buying a used transmission control module
- Match OEM hardware and software part numbers exactly, as shift schedules and solenoid driving algorithms differ between gear ratios and engine sizes.
- Determine if the module is standalone, integrated into the PCM/ECM, or mounted internally on the transmission valve body (mechatronic unit).
- Check if the module requires VIN programming, clutch adaptation relearns, or flash updating before normal gear engagement will occur.
- Inspect connector pins for fluid wicking; leaky transmission harness seals can force transmission fluid up into the TCM connector plug pins.
Full price guide
Mercedes S Class Transmission Control Module
$25 – $750 · 32,212 listings
Full price guide
Kia Seltos Transmission Control Module
$42 – $445 · 2,014 listings
Common questions
Mercedes S Class vs Kia Seltos transmission control module FAQ
Is a used Mercedes S Class transmission control module cheaper than a Kia Seltos?
Mercedes S Class has the lower median by $15 (10%). The Mercedes S Class transmission control module ranges from $25 to $750 across 32,212 listings, while the Kia Seltos ranges from $42 to $445 across 2,014 listings.
Can I use a Mercedes S Class transmission control module in a Kia Seltos?
This comparison describes pricing, not interchangeability. Even when two parts share similar prices, they may require different engines, trims, electronics, or mounting points. Always match the seller's part number against your VIN before purchasing.
How many listings does this comparison cover?
This comparison draws from 32,212 priced Mercedes S Class listings and 2,014 priced Kia Seltos listings — 34,226 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes S Class $144 vs Kia Seltos $151. Grade B (Good): Mercedes S Class $206 vs Kia Seltos $144. Grade A parts are in excellent condition, B is good, and C is fair — always confirm grading criteria with the seller.
Are there different trim variants to choose from?
Yes. The Mercedes S Class transmission control module has 1 trim variant and the Kia Seltos has 8. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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