Vehicle price comparison
Mercedes S Class vs Fiat 500 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 Mercedes S Class transmission control module cost more?
A used Mercedes S Class transmission control module carries a median asking price of $135, which is 35% higher than the Fiat 500 at $100. Supply also plays a role: Mercedes S Class has 32,212 priced listings versus 462 for Fiat 500, and more listings generally mean more choices and more competitive pricing.
The Fiat 500 average ($118) runs 18% above its median ($100), indicating a tail of high-priced listings — likely low-mileage or remanufactured units pulling the average up.
Our guide covers 10 model years for the Mercedes S Class (2015–2024) but only 6 for the Fiat 500 (2015–2024), so the Mercedes S Class data reflects a broader range of generations.
Only 68% of Fiat 500 transmission control module listings include a posted price (462 of 684 observed) — the rest are "call for price," which usually signals negotiable or higher-than-average pricing.
At Grade A (excellent) condition, the Fiat 500 is 31% cheaper ($100 vs $144) — the gap widens 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
Fiat 500 Transmission Control Module
$25 – $510 · 462 listings
Common questions
Mercedes S Class vs Fiat 500 transmission control module FAQ
Is a used Mercedes S Class transmission control module cheaper than a Fiat 500?
Fiat 500 has the lower median by $35 (35%). The Fiat 500 transmission control module ranges from $25 to $510 across 462 listings, while the Mercedes S Class ranges from $25 to $750 across 32,212 listings.
Can I use a Mercedes S Class transmission control module in a Fiat 500?
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 462 priced Fiat 500 listings — 32,674 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes S Class $144 vs Fiat 500 $100. Grade B (Good): Mercedes S Class $206 vs Fiat 500 $114. Grade C (Fair): Mercedes S Class $59 vs Fiat 500 $50. 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 Fiat 500 has 2. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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