Mercedes-Benz CLK350 Fuel Pump Relay Replacement at your home or office.

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Fuel Pump Relay Replacement Service

How much does a Fuel Pump Relay Replacement cost?

On average, the cost for a Mercedes-Benz CLK350 Fuel Pump Relay Replacement is $115 with $20 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 Mercedes-Benz CLK350V6-3.5LService typeFuel Pump Relay ReplacementEstimate$154.71Shop/Dealer Price$182.14 - $225.06
2006 Mercedes-Benz CLK350V6-3.5LService typeFuel Pump Relay ReplacementEstimate$142.95Shop/Dealer Price$172.47 - $221.59
2009 Mercedes-Benz CLK350V6-3.5LService typeFuel Pump Relay ReplacementEstimate$134.71Shop/Dealer Price$162.17 - $205.11
2007 Mercedes-Benz CLK350V6-3.5LService typeFuel Pump Relay ReplacementEstimate$142.95Shop/Dealer Price$172.43 - $221.52
Show example Mercedes-Benz CLK350 Fuel Pump Relay Replacement prices

What is the Fuel Pump Relay all about?

Every time you turn on the ignition of your car, you activate the fuel pump relay. This device sends an electric current to the fuel pump. Upon receiving this current, the fuel pump sends gasoline to the engine and the car starts running. While the fuel pump is active as long as the car engine is running, the fuel pump relay works only at startup and when you turn off the ignition. As long as the car is running, the fuel pump runs on the power it receives from the oil pressure sending unit or any other such power source.

The fuel pump relay is also called the relay switch and its functions are similar to those of the automotive fuse. Controlled by the engine control module, the fuel pump relay controls the current sent to the fuel pump. This device is a black plastic component, set in a small box with a wiring harness attached to its underside. Its sprockets attach to the engine assembly. Depending on the make of the car, you will find the fuel pump relay under the hood or under the dashboard, near the steering wheel of the car.

Keep in mind:

  • Fuel relay pumps can oxidize or rust and need to be changed more frequently that the fuel pump.
  • Typically, the coil and contact points of the fuel pump relay show damage.

How it's done:

  • The vehicle hood is raised and supported
  • The defective fuel pump relay is removed
  • The new fuel pump relay is installed
  • The fuel pressure is tested and codes cleared with a scanner or gauge
  • The vehicle hood is closed and road tested for proper operation

Our recommendation:

The fuel pump of the car is an expensive device that functions well with the optimal amount of current. If it receives excessive power, the wiring system around the pump overheats, and the fuel pump could get damaged or fail completely. The fuel pump relay has a limited lifetime so you should have our expert mechanics check it every time your brakes are changed.

What common symptoms indicate you may need to replace the Fuel Pump Relay?

  • Engine cranks but does not start at all.
  • Engine functions irregularly and does not start right away
  • Car slows down without your braking
  • Car comes to a halt after running only for a short distance

How important is this service?

If the fuel pump relay does not work properly, it will not activate the fuel pump and you car will not start. Further, a malfunctioning fuel pump relay could conduct too much power to the fuel pump and cause damage to or ruin it completely. This is why we recommend that you keep the fuel pump relay in perfect working order at all times.

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Excellent Rating

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Rating Summary
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94
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Daniel

9 years of experience
42 reviews
Daniel
9 years of experience
Mercedes-Benz CLK350 V6-3.5L - Crankshaft Position Sensor Replacement - Pompano Beach, Florida
Very professional and answered all my questions and concerns

Robert

37 years of experience
237 reviews
Robert
37 years of experience
Mercedes-Benz CLK350 V6-3.5L - Brake Pads Replacement (Rear) - Douglasville, Georgia
Professional and provide good customer service. Came early and completed the job in a timely manner.

Grzegorz

41 years of experience
473 reviews
Grzegorz
41 years of experience
Mercedes-Benz CLK350 V6-3.5L - Air Filter - Daly City, California

Antonios

18 years of experience
56 reviews
Antonios
18 years of experience
Mercedes-Benz CLK350 V6-3.5L - Serpentine/Drive Belt Replacement - West Roxbury, Massachusetts
Antonio’s (“Tony”) was awesome. He not only did the repairs efficiently and neatly, but he also explained in depth what he would do as well as other point of interests with the engine. He is very knowledgeable about my car. I’ll definitely use him again and will refer him as well

Excellent Rating

(99)

Rating Summary
94
2
1
0
2
94
2
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Number of Mercedes-Benz CLK350 services completed
1089+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
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