Vehicle price comparison
Audi A4 vs Mercedes C Class Differential 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 C Class differential cost more?
A used Mercedes C Class differential carries a median asking price of $450, which is 56% higher than the Audi A4 at $200. Supply also plays a role: Audi A4 has 6 priced listings versus 5 for Mercedes C Class, and more listings generally mean more choices and more competitive pricing.
Our guide covers 4 model years for the Mercedes C Class (2016–2020) but only 2 for the Audi A4 (2015–2018), so the Mercedes C Class data reflects a broader range of generations.
Buyer's checklist
What to check before buying a used differential
- Confirm the exact gear ratio (e.g., 3.55 vs 3.73) by checking axle tags or counting ring and pinion teeth; mismatched ratios in 4WD or AWD vehicles will destroy the transfer case.
- Check differential carrier type (open, limited-slip, or electronic locking) and verify axle shaft spline counts match your vehicle's axle shafts.
- Inspect the drain plug magnet for heavy metal shavings and turn the input yoke by hand to check for smooth rotation, excessive backlash, or pinion bearing play.
- Verify mounting points, cover bolt patterns, and ABS wheel speed sensor tone ring locations across different model years.
Full price guide
Audi A4 Differential
$200 – $250 · 6 listings
Full price guide
Mercedes C Class Differential
$400 – $500 · 5 listings
Common questions
Audi A4 vs Mercedes C Class differential FAQ
Is a used Audi A4 differential cheaper than a Mercedes C Class?
Audi A4 has the lower median by $250 (56%). The Audi A4 differential ranges from $200 to $250 across 6 listings, while the Mercedes C Class ranges from $400 to $500 across 5 listings.
Can I use a Audi A4 differential in a Mercedes C Class?
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 6 priced Audi A4 listings and 5 priced Mercedes C Class listings — 11 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Audi A4 $200 vs Mercedes C Class $450. 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 Audi A4 differential has 2 trim variants and the Mercedes C Class has 1. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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