Mercedes AMG A Class Performance Seats w177 A45
Code 555 | High-Lateral Support | DINAMICA & Nappa Leather
The AMG Performance Seats (Option Code 555) are the definitive seating choice for the W177 A45 and A45 S. Unlike the standard sport seats found in the A35 or AMG-Line models, these are purpose-built racing shells manufactured by Recaro for Mercedes-AMG. They provide significantly deeper side bolsters and a firmer, more connected feel to the car’s chassis. Mercedes AMG A Class Performance Seats w177 A45
1. Key Features & Design
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Integrated Headrests: The seat and headrest are a single, continuous piece, featuring a silver or black AMG-badged pass-through for airflow or racing harnesses.
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Sculpted Shoulder Support: Widened upper bolsters designed to keep the driver’s torso centered during high-G cornering.
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Technical Materials: Typically finished in a mix of Nappa Leather and DINAMICA microfibre. The microfibre centers prevent the driver from sliding under lateral load.
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Ambient Lighting (Code 877): The plastic frames of the headrest pass-throughs are illuminated and sync with the 64-color MBUX ambient lighting system.
2. Available Functional Packages
Depending on the specific build, these seats can be equipped with varying levels of luxury tech:
| Feature | Code | Description |
| Multicontour Package | Code 409 | Integrated air bladders in the side bolsters and lumbar that inflate/deflate via MBUX to “clamp” the driver in place. |
| Memory Package | Code 275 | Full 12-way electric adjustment for both driver and passenger with 3 memory slots. |
| Seat Climate | Code 401 | Rare Option: Perforated leather versions can include both heating and active cooling (ventilation). |
| Yellow Night / Edition 1 | P74 | Features contrast yellow stitching and yellow DINAMICA highlights. |
3. Comfort vs. Performance
⚠️ User Consensus: > * Performance: Rated 10/10 for track use and spirited driving. The connection to the rear-biased 4MATIC+ system is much more visceral than in standard seats.
Daily Comfort: They are significantly firmer than standard seats. Taller drivers or those with wider builds may find the fixed headrest position and high thigh bolsters restrictive for long highway commutes.
Ingress/Egress: The high bolsters require a more deliberate “climb in” technique, which can lead to premature wear on the outer leather bolster if not careful.
4. Retrofit & Compatibility Notes
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Standard A-Class to A45 Seats: Physically, the rails are the same across all W177 models. However, the electronics are complex.
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Control Modules: Performance seats require specific control modules (under-seat computers). If your car has manual seats, a direct swap will require a custom wiring harness and new door-mounted switch panels.
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Coding: The SRS (Airbag) system must be initialized. Because the A45 seats have different side-impact airbag parameters, the car’s central gateway must be told that Code 555 is now present.
5. Maintenance Pro-Tip
To keep the DINAMICA (Alcantara-like) sections from “matting” or turning greasy:
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Avoid using heavy leather conditioners on the microfibre centers.
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Use a soft suede brush to lift the pile once a month.
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For the Bahia Brown or Titanium Grey versions, use a leather sealant to prevent blue denim dye transfer.
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