Mercedes-Benz S350 Fuel Pressure Regulator Replacement at your home or office.

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Fuel Pressure Regulator Replacement Service

How much does a Fuel Pressure Regulator Replacement cost?

On average, the cost for a Mercedes-Benz S350 Fuel Pressure Regulator Replacement is $275 with $180 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1995 Mercedes-Benz S350L6-3.4L Turbo DieselService typeFuel Pressure Regulator ReplacementEstimate$474.27Shop/Dealer Price$581.59 - $864.18
2006 Mercedes-Benz S350V6-3.7LService typeFuel Pressure Regulator ReplacementEstimate$464.85Shop/Dealer Price$574.85 - $865.39
1994 Mercedes-Benz S350L6-3.4L Turbo DieselService typeFuel Pressure Regulator ReplacementEstimate$454.49Shop/Dealer Price$561.90 - $844.67
Show example Mercedes-Benz S350 Fuel Pressure Regulator Replacement prices

What is the Fuel Pressure Regulator all about?

Cars need to run at a specific fuel pressure. The regulator controls the fuel pressure and returns any excess fuel to the tank. The regulator is important to ensure that the injectors operate properly. If the regulator malfunctions, it can cause the engine to flood. In extreme cases, a flooded engine can be a fire hazard.

You may see liquid on the floor near the exhaust pipe (raw gas dripping from the tail pipe). You may also notice black smoke when the engine is running (partially burnt gas produces black smoke). Not only will the car get poor gas mileage, it also may not pass an emissions test.

Fuel Pressure Regulator-MATROX-1

Keep in mind:

Some fuel regulators are located in the tank as part of the fuel pump assembly. If the fuel pressure regulator has gone bad, it can leak fuel in the engine, contaminating the engine oil.

How it's done:

  • Scan the computer system in the car for trouble codes.
  • Inspect fuel pressure regulator for leakage and proper operation.
  • Inspect for any broken vacuum lines.
  • Remove and replace fuel pressure regulator if it is bad.
  • Change the engine oil and filter if the oil is found to be contaminated.
  • Clear any diagnostic trouble codes.
  • Test drive the vehicle.

Our recommendation:

Any time that you notice something potentially wrong with your fuel system, you should schedule an inspection. There are many signs that a fuel pressure regulator is malfunctioning, and all should be taken seriously. If you notice that your car is getting poor mileage, has gas leaking, has black smog coming out of the exhaust, or isn’t running smoothly, contact a mechanic. A malfunctioning fuel pressure regulator will often illuminate the Check Engine warning light, which is always a sign to schedule an inspection.

What common symptoms indicate you may need to replace the Fuel Pressure Regulator?

  • Poor gas mileage.
  • Smell of gas in the engine compartment.
  • Fuel is leaking.
  • Black smoke coming out of the exhaust (tail pipe).
  • Failed emissions test.
  • Check engine light is on.

How important is this service?

When gas is sent from your gas tank to your engine, the fuel pressure regulator makes sure that the fuel pressure is optimal. The fuel pressure regulator is responsible for returning excess fuel to the gas tank, and making sure that the fuel injectors get the perfect fuel pressure. When the regulator malfunctions, the fuel pressure will not be controlled, and your engine will not run optimally. Your engine will also be at risk for fuel flooding, which can result in serious damage and even fire.

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Excellent Rating

(6)

Rating Summary
5
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1
5
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1

Andrian

32 years of experience
185 reviews
Andrian
32 years of experience
Mercedes-Benz S350 V6-3.7L - Car is not starting - Fort Lauderdale, Florida
He took the time to thoroughly assess the condition of my vehicle, explained his findings and discussed possible options and next steps. I never felt pressured or like he was trying to upsell me. He is articulate, knowledgeable, polite and extremely honest. I recommend him highly and hope I have the opportunity to work with him in the future.

Mark

41 years of experience
77 reviews
Mark
41 years of experience
Mercedes-Benz S350 V6-3.7L - Serpentine/Drive Belt - Alpharetta, Georgia
Fixed my car. Nice guy. A+

Mohammed

9 years of experience
152 reviews
Mohammed
9 years of experience
Mercedes-Benz S350 L6-3.4L Turbo Diesel - Fuel Gauge Sender - Raleigh, North Carolina
AAA mechanic very polite and courteous.

Omar

12 years of experience
287 reviews
Omar
12 years of experience
Mercedes-Benz S350 V6-3.7L - Brake Pads Replacement (Front, Rear) - Fort Lauderdale, Florida
He was on time, transparent, extremely communicative about the process and procedures. Polite and extremely respectful.

Excellent Rating

(6)

Rating Summary
5
0
0
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1
5
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Number of Mercedes-Benz S350 services completed
66+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
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