Vehicle price comparison
Mercedes E Class vs Kia Optima Window Regulator 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 Optima window regulator cost more?
A used Kia Optima window regulator carries a median asking price of $112, which is 11% higher than the Mercedes E Class at $100. Supply also plays a role: Mercedes E Class has 1,760 priced listings versus 579 for Kia Optima, and more listings generally mean more choices and more competitive pricing.
The Mercedes E Class average ($123) runs 23% above its median ($100), indicating a tail of high-priced listings — likely low-mileage or remanufactured units pulling the average up.
Our guide covers 9 model years for the Mercedes E Class (2015–2024) but only 6 for the Kia Optima (2015–2020), so the Mercedes E Class data reflects a broader range of generations.
Only 52% of Mercedes E Class window regulator listings include a posted price (1,760 of 3,405 observed) — the rest are "call for price," which usually signals negotiable or higher-than-average pricing.
The Mercedes E Class window regulator is interchangeable across 15 model years versus just 9 for the Kia Optima — that wider compatibility window means more donor vehicles in salvage yards and tends to push prices lower.
At Grade B (good) condition, the Kia Optima is 39% cheaper ($126 vs $208) — the gap widens compared to the overall median difference.
Buyer's checklist
What to check before buying a used window regulator
- Distinguish between power and manual regulators, and confirm motor wire connector pin counts (e.g., 2-pin basic vs 6-pin express auto-up/down with anti-pinch).
- Inspect regulator cables for fraying, rusting, or derailment from plastic pulleys, and check scissor gear teeth for stripping or binding.
- Check glass attachment clips or mounting clamps to ensure plastic snap tabs aren't brittle or broken.
- Verify front door vs rear door and left vs right side specific mounting hole patterns, as regulators are non-interchangeable across doors.
Full price guide
Mercedes E Class Window Regulator
$30 – $331 · 1,760 listings
Full price guide
Kia Optima Window Regulator
$30 – $405 · 579 listings
Common questions
Mercedes E Class vs Kia Optima window regulator FAQ
Is a used Mercedes E Class window regulator cheaper than a Kia Optima?
Mercedes E Class has the lower median by $12 (11%). The Mercedes E Class window regulator ranges from $30 to $331 across 1,760 listings, while the Kia Optima ranges from $30 to $405 across 579 listings.
Can I use a Mercedes E Class window regulator in a Kia Optima?
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 1,760 priced Mercedes E Class listings and 579 priced Kia Optima listings — 2,339 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes E Class $103 vs Kia Optima $106. Grade B (Good): Mercedes E Class $208 vs Kia Optima $126. 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 E Class window regulator has 2 trim variants and the Kia Optima has 4. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
More comparisons