Vehicle price comparison
Mercedes S Class vs Audi A4 Heater Core 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 Audi A4 heater core cost more?
A used Audi A4 heater core carries a median asking price of $156, which is 26% higher than the Mercedes S Class at $116. Supply also plays a role: Mercedes S Class has 1,069 priced listings versus 453 for Audi A4, and more listings generally mean more choices and more competitive pricing.
The Mercedes S Class average ($227) runs 96% above its median ($116), 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 Audi A4 (2015–2024) but only 8 for the Mercedes S Class (2015–2023), so the Audi A4 data reflects a broader range of generations.
At Grade A (excellent) condition, the Mercedes S Class is 26% cheaper ($116 vs $156) — the gap narrows compared to the overall median difference.
Buyer's checklist
What to check before buying a used heater core
- Pressure test the core before installation to check for pinhole leaks, as dashboard removal labor makes installing a leaking used core costly.
- Inspect inlet and outlet aluminum tubes for crimping, bending, or galvanic corrosion where hoses clamp on.
- Look into the tube openings for white mineral deposits or rust scale, which indicate neglected cooling systems and clogged internal passages.
- Verify tube routing angles and quick-disconnect collar designs to ensure proper clearance through the firewall box.
Full price guide
Mercedes S Class Heater Core
$60 – $540 · 1,069 listings
Full price guide
Audi A4 Heater Core
$66 – $252 · 453 listings
Common questions
Mercedes S Class vs Audi A4 heater core FAQ
Is a used Mercedes S Class heater core cheaper than a Audi A4?
Mercedes S Class has the lower median by $40 (26%). The Mercedes S Class heater core ranges from $60 to $540 across 1,069 listings, while the Audi A4 ranges from $66 to $252 across 453 listings.
Can I use a Mercedes S Class heater core in a Audi A4?
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 1,069 priced Mercedes S Class listings and 453 priced Audi A4 listings — 1,522 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes S Class $116 vs Audi A4 $156. Grade B (Good): Mercedes S Class $116 vs Audi A4 $156. Grade C (Fair): Mercedes S Class $300 vs Audi A4 $155. 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 heater core has 2 trim variants and the Audi A4 has 0. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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