Vehicle price comparison
Mercedes C Class vs Kia Optima Ignition Switch 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 ignition switch cost more?
A used Kia Optima ignition switch carries a median asking price of $100, which is 1% higher than the Mercedes C Class at $99. Supply also plays a role: Mercedes C Class has 1,215 priced listings versus 628 for Kia Optima, and more listings generally mean more choices and more competitive pricing.
The Kia Optima 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 C Class (2015–2024) but only 6 for the Kia Optima (2015–2020), so the Mercedes C Class data reflects a broader range of generations.
Buyer's checklist
What to check before buying a used ignition switch
- Determine if the unit includes the mechanical lock cylinder with matching keys, or if it is purely the electrical ignition switch contact block.
- Match key transponder chip frequency (Passlock, PATS, or RFID) and verify if anti-theft relearn or key programming tools will be required.
- Inspect wire harness pigtail connectors for burnt plastic or loose female spade terminals caused by ignition circuit overload.
- Verify key cylinder positions (Accessory, Off, Run, Start) turn smoothly without sticking, binding, or requiring key jiggling.
Full price guide
Mercedes C Class Ignition Switch
$45 – $199 · 1,215 listings
Full price guide
Kia Optima Ignition Switch
$25 – $450 · 628 listings
Common questions
Mercedes C Class vs Kia Optima ignition switch FAQ
Is a used Mercedes C Class ignition switch cheaper than a Kia Optima?
Mercedes C Class has the lower median by $1 (1%). The Mercedes C Class ignition switch ranges from $45 to $199 across 1,215 listings, while the Kia Optima ranges from $25 to $450 across 628 listings.
Can I use a Mercedes C Class ignition switch 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 1,215 priced Mercedes C Class listings and 628 priced Kia Optima listings — 1,843 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes C Class $99 vs Kia Optima $99. Grade B (Good): Mercedes C Class $100 vs Kia Optima $113. 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 C Class ignition switch has 2 trim variants and the Kia Optima has 3. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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