Mercedes-Benz CLK550 Fuel Pump Relay Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(17)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(17)

Fuel Pump Relay Replacement Service

How much does a Fuel Pump Relay Replacement cost?

On average, the cost for a Mercedes-Benz CLK550 Fuel Pump Relay Replacement is $118 with $23 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 Mercedes-Benz CLK550V8-5.5LService typeFuel Pump Relay ReplacementEstimate$188.19Shop/Dealer Price$223.99 - $292.02
2007 Mercedes-Benz CLK550V8-5.5LService typeFuel Pump Relay ReplacementEstimate$140.55Shop/Dealer Price$169.47 - $216.79
2009 Mercedes-Benz CLK550V8-5.5LService typeFuel Pump Relay ReplacementEstimate$168.19Shop/Dealer Price$204.02 - $272.07
Show example Mercedes-Benz CLK550 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(17)

Rating Summary
16
0
0
0
1
16
0
0
0
1

Jason

23 years of experience
190 reviews
Jason
23 years of experience
Mercedes-Benz CLK550 V8-5.5L - Battery - Franklin, Tennessee
Jason was prompt, courteous and knowledgeable. He communicated with us every step of the way. We still needed further assistance with our problem and he fully explained that to us and also knew some towing services. We were in a parking lot and needed more than mobile equipment could provide. We recommend Jason

Matthew

11 years of experience
53 reviews
Matthew
11 years of experience
Mercedes-Benz CLK550 V8-5.5L - Reset Maintenance Reminder System - Venice, California
quick & perfect!

Ben

41 years of experience
1416 reviews
Ben
41 years of experience
Mercedes-Benz CLK550 V8-5.5L - Pre-purchase Car Inspection - Houston, Texas

Carlos

21 years of experience
47 reviews
Carlos
21 years of experience
Mercedes-Benz CLK550 V8-5.5L - Battery - Sugar Land, Texas
Carlos was fantastic. He called to let me know that he could come immediately to where I was. He was extremely professional, and got me going very quickly. I highly recommend him.

Excellent Rating

(17)

Rating Summary
16
0
0
0
1
16
0
0
0
1
Number of Mercedes-Benz CLK550 services completed
187+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How Long Does a Blower Motor Switch Last?
Keeping Keeping the cabin of a car at the right temperature is no easy job. A number of components have to work together in order for your car’s cabin to stay comfortable. The heating and A/C systems in your car...
P2068 OBD-II Trouble Code: Fuel Level Sensor “B” Circuit High
P2068 P2068 trouble code definition Fuel Level Sensor “B” Circuit High What the P2068 code means This code indicates the fuel level sensor is indicating a higher than expected voltage. The higher the value the more fuel is in the...
P0492 OBD-II Trouble Code: Secondary Air Injection System Insufficient Flow Bank
P0492 means there is a problem with the secondary air injection system, often due to intake leaks or faulty one-way check valves.

How do I check the engine oil level?

Part of being a responsible vehicle owner and ensuring that your car lasts as long as possible is keeping an eye on fluids. There are few fluids as essential as engine oil. You should check the oil level regularly –...

Overheating when low rpm

Hi Yasmany. Symptoms are always a good source of information to begin a diagnosis, but an onsite inspection (https://www.yourmechanic.com/services/car-is-running-hotter-than-normal-inspection) is always best to correctly diagnose an overheating problem. Generally speaking, when a vehicle is under acceleration, additional fuel is sprayed...

I have 2005 Audi A6 4.2V8 and it’s making. Rattling noice when I rev the car but when it idles it makes no noice and I took it to a mechanic and they said it could be this one tensioner and pulley so I got the parts but I took it to another place just to make sure and they said it was the chains that they were loose so idk who to believe but would the symptoms of the chain be ? And also when i sprayed water where the pulleys are the noice went away for 10 seconds so I’m not sure if it’s that or it’s actually the chains

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com