Vehicle price comparison
Mercedes S Class vs BMW M3 Radiator 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 BMW M3 radiator cost more?
A used BMW M3 radiator carries a median asking price of $272, which is 26% higher than the Mercedes S Class at $200. Supply also plays a role: Mercedes S Class has 5,325 priced listings versus 413 for BMW M3, and more listings generally mean more choices and more competitive pricing.
Grade A (excellent condition) parts make up 93% of BMW M3 listings compared to 78% for the Mercedes S Class, so buyers looking for top-condition units will find more options on the BMW M3 side.
Our guide covers 9 model years for the Mercedes S Class (2015–2024) but only 7 for the BMW M3 (2015–2024), so the Mercedes S Class data reflects a broader range of generations.
The Mercedes S Class radiator is interchangeable across 15 model years versus just 10 for the BMW M3 — that wider compatibility window means more donor vehicles in salvage yards and tends to push prices lower.
At Grade A (excellent) condition, the Mercedes S Class is 30% cheaper ($195 vs $278) — the gap narrows compared to the overall median difference.
Buyer's checklist
What to check before buying a used radiator
- Inspect for bent or crushed fins — minor cosmetic bending is OK, but large crushed sections reduce cooling capacity.
- Check both tanks (top and bottom) for cracks, especially along the crimped seams on plastic-tank radiators.
- Confirm the inlet/outlet positions and sizes match — some models moved ports between model years.
- Look for internal blockage: shake the unit and listen for debris, or flush it with a garden hose before installing.
Full price guide
Mercedes S Class Radiator
$55 – $720 · 5,325 listings
Full price guide
BMW M3 Radiator
$115 – $640 · 413 listings
Common questions
Mercedes S Class vs BMW M3 radiator FAQ
Is a used Mercedes S Class radiator cheaper than a BMW M3?
Mercedes S Class has the lower median by $72 (26%). The Mercedes S Class radiator ranges from $55 to $720 across 5,325 listings, while the BMW M3 ranges from $115 to $640 across 413 listings.
Can I use a Mercedes S Class radiator in a BMW M3?
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 5,325 priced Mercedes S Class listings and 413 priced BMW M3 listings — 5,738 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes S Class $195 vs BMW M3 $278. Grade B (Good): Mercedes S Class $132 vs BMW M3 $231. 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 radiator has 2 trim variants and the BMW M3 has 2. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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