Essential O-Ring for Fuel Pump

Why You Need It

The O-ring is a crucial component for sealing the fuel pump assembly. It ensures a leak-proof operation, maintaining the optimal pressure needed for efficient fuel delivery. Without the O-ring, fuel leaks can lead to decreased performance and increased emissions.

How It Works

The O-ring is seated in the groove between the fuel pump and the fuel tank. As a static seal, it prevents fuel and vapors from escaping the system, ensuring all fuel is correctly routed to the engine. This helps maintain the engine's proper air-fuel mixture for peak performance.

Consequences of a Broken O-Ring

When the O-ring fails, it can cause fuel leaks, leading to a drop in fuel pressure. This may result in poor engine performance, rough idling, and even stalling. Moreover, it poses a significant fire hazard due to the potential fuel leakage.

Compatibility List

• S 63 Amg
• C 400 4Matic
• Gl 500/550 4Matic / Gls 500/550 4Matic
• Gl/Gls 63 Amg
• Glc 300 4Matic
• Ml/Gle 400
• C 350 4Matic
• C 200 L
• Mercedes-Amg Gt
• Cls 400 4Matic
• Cla 180
• E 400 4Matic