Mercedes-Benz 300E Fog Light Relay Replacement at your home or office.

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Fog Light Relay Replacement Service

How much does a Fog Light Relay Replacement cost?

On average, the cost for a Mercedes-Benz 300E Fog Light Relay Replacement is $133 with $38 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1990 Mercedes-Benz 300EL6-2.6LService typeFog Light Relay ReplacementEstimate$191.37Shop/Dealer Price$227.97 - $298.38
1990 Mercedes-Benz 300EL6-3.0LService typeFog Light Relay ReplacementEstimate$171.37Shop/Dealer Price$208.00 - $278.43
1991 Mercedes-Benz 300EL6-2.6LService typeFog Light Relay ReplacementEstimate$171.37Shop/Dealer Price$208.00 - $278.43
1993 Mercedes-Benz 300EL6-2.8LService typeFog Light Relay ReplacementEstimate$171.37Shop/Dealer Price$207.96 - $278.36
1988 Mercedes-Benz 300EL6-3.0LService typeFog Light Relay ReplacementEstimate$171.37Shop/Dealer Price$208.02 - $278.48
1992 Mercedes-Benz 300EL6-3.0LService typeFog Light Relay ReplacementEstimate$171.37Shop/Dealer Price$208.00 - $278.43
1993 Mercedes-Benz 300EL6-3.2LService typeFog Light Relay ReplacementEstimate$176.37Shop/Dealer Price$212.76 - $283.01
1986 Mercedes-Benz 300EL6-3.0LService typeFog Light Relay ReplacementEstimate$176.37Shop/Dealer Price$213.41 - $284.15
Show example Mercedes-Benz 300E Fog Light Relay Replacement prices

What is the Fog Light Relay all about?

Your fog lights don’t need to be on if the headlights aren’t on. For that reason, a fog light relay is used. The fog light relay acts as a switch, enabling the fog lights to come on only when certain criteria are satisfied. Typically, fog lights do not come on when the high beam headlights are on either. The relay directs power to the fog lights only when the switch is on and the right lighting circuits are on. The use of a relay means a low voltage fog light switch can be used. If the full voltage of the fog lights runs through a switch, the switch will become very hot and overload.

Keep in mind:

  • If your fog lights are drawing too much current, the relay can sustain damaged; conversely, a bad relay can cause damage to other components in your lighting system.

How it's done:

  • The faulty fog light relay is identified and access panel removed
  • The defective fog light relay is removed
  • The new fog light relay is installed
  • The fog lights are tested for proper operation and access panel installed
  • The fog lights are finally checked for proper operation

Our recommendation:

Fog light operation is checked when regular maintenance inspections are performed. If the fog lights aren’t working, have them diagnosed and repaired by one of our expert mechanics.

What common symptoms indicate you may need to replace the Fog Light Relay?

  • Turning on your fog lights only result in a clicking sound
  • Fog lights do not work and the appropriate switches don’t light up
  • Fog lights are on all the time

How important is this service?

All lights are required to operate as designed for a vehicle safety inspection. Not only will your vehicle not pass the inspection if the fog lights aren’t working, but your night vision will be obstructed. Have the fog light relay replaced as soon as it is deemed faulty.

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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(16)

Rating Summary
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Dante

36 years of experience
98 reviews
Dante
36 years of experience
Mercedes-Benz 300E L6-3.0L - Other Inspections - Long Beach, California

Tony

15 years of experience
36 reviews
Tony
15 years of experience
Mercedes-Benz 300E L6-3.2L - Alternator - Saint Louis, Missouri
Tony's a life saver!!!

James

12 years of experience
233 reviews
James
12 years of experience
Mercedes-Benz 300E L6-3.2L - Battery - San Francisco, California
Was given a "fixed price" for two services, one was completed but the other was not because the price for egr valve jumped significantly. In conversations with company reps I was not satisfied with their explanation of "fixed price" being only in regards to service charge as the website does not state that, it stated that there will be "no surprises, fixed price for services requested..." I feel there was false advertising. the battery was installed as part two of the service before being informed of the price hike so I wound up paying for that and not getting the main service completed. had the higher price been given initially I would not have booked the service at all.

ALAA

37 years of experience
56 reviews
ALAA
37 years of experience
Mercedes-Benz 300E L6-3.0L - Pre-purchase Car Inspection - El Macero, California
Although I had some difficulty reaching him at first, Alaa was communicative and honest on the phone. Helped me with a pre-purchase inspection of a vehicle I was planning to buy site unseen dealing with an extremely rude dealership.

Excellent Rating

(16)

Rating Summary
14
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Number of Mercedes-Benz 300E services completed
176+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

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