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Mercedes C63 AMG / C63 S Auxiliary Heat Exchanger + Carbon Fiber Air Baffle (W205 · M177)
Mercedes C63 AMG / C63 S Auxiliary Heat Exchanger + Carbon Fiber Air Baffle (W205 · M177)
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$550.00 USD
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$550.00 USD
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This M177 Auxiliary Heat Exchanger Kit with carbon fiber air baffle upgrades the low-temperature cooling circuit on the 4.0L BiTurbo V8. It significantly reduces heat soak, lowers intake air temperatures, and provides more consistent power under high load and in hot conditions.
Key Features & Benefits
- Upgraded Auxiliary Heat Exchanger — Increases cooling surface area for better heat rejection in the low-temp circuit
- Carbon Fiber Air Baffle — Directs high-pressure cool outside air into the exchanger core, the critical piece most kits miss
- Reduced Heat Soak — Maintains lower and more stable intake air temperatures during aggressive driving and track use
- Faster Temperature Recovery — Cools down quicker between pulls and in traffic
- Bolt-on Design — Uses factory mounting points with no cutting or major modifications required
Compatibility
| Model | Years | Chassis |
|---|---|---|
| C63 / C63 S AMG | 2015–2021 | W205 |
| GLE580 4Matic | 2020–2022 | V167 |
| GLE63 / GLE63 S AMG | 2016–2019 | W166 |
| GLS580 4Matic | 2020–2022 | X167 |
| GLS63 AMG | 2017–2019 | X166 |
| AMG GT / GT S / GT C / GT R | 2018–2022 | C190 / R190 |
Frequently Asked Questions
Is this a full intercooler upgrade?
No — it upgrades the auxiliary low-temperature circuit that cools the main intercoolers.
Why include the carbon fiber baffle?
It directs cool outside air into the auxiliary core — the missing piece that makes the upgrade truly effective.
Will this require tuning?
No tuning is required. It works on stock and tuned vehicles.
How noticeable is the difference?
Most noticeable in hot weather, repeated hard runs, and on the track.
BenzUnited Parts • Premium M177 Cooling Upgrades • Ships Fast
