Mercedes-Benz SL400 Intermittent Wiper Relay Replacement at your home or office.

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Intermittent Wiper Relay Replacement Service

How much does a Intermittent Wiper Relay Replacement cost?

On average, the cost for a Mercedes-Benz SL400 Intermittent Wiper Relay Replacement is $415 with $320 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2016 Mercedes-Benz SL400V6-3.0L TurboService typeIntermittent Wiper Relay ReplacementEstimate$754.75Shop/Dealer Price$932.19 - $1425.14
2015 Mercedes-Benz SL400V6-3.0L TurboService typeIntermittent Wiper Relay ReplacementEstimate$734.75Shop/Dealer Price$912.22 - $1405.19
Show example Mercedes-Benz SL400 Intermittent Wiper Relay Replacement prices

What is the Intermittent Wiper Relay all about?

In the distant past, windshield wiper operation had only 2 functions: on and off. Over time, car manufacturers introduced low, medium and high speeds, and eventually added intermittent wiper functionality. These series of developments provided drivers with a wider range of speeds for varying levels of precipitation.

This functionality relies on a component called a relay – the same technology that powers your fuel pump and keeps your car’s computer running. The relay uses electrical resistance relative to the position set on the wiper control arm to determine the specific speed at which the wipers move.

Because the intermittent wiper relay is electronic, it will inevitably fail and require replacement.

Keep in mind:

  • Intermittent wiper relay inspection is not part of most maintenance services.
  • Without the relay, your wipers will still work, but they will not offer variable speeds.

How it's done:

  • The intermittent wiper relay is verified it needs replacement
  • The defective intermittent wiper relay is removed
  • The new intermittent wiper relay is installed
  • The intermittent wiper relay is energized to turn it on
  • The wipers are tested to work properly in all control positions

Our recommendation:

Intermittent wiper operation isn’t required to drive your vehicle, and as long as your windshield wipers work, you’re legally permitted to drive while raining. However, lack of such an option can be a major inconvenience. If your wipers no longer work on the intermittent setting, a failed relay is likely the cause. Have it inspected by one of our expert mechanics and replaced if necessary.

What common symptoms indicate you may need to replace the Intermittent Wiper Relay?

  • Intermittent speed setting does not always work
  • Intermittent setting does not work at all

How important is this service?

Working wipers are required for safety on the road, but intermittent functionality is a convenience feature. However, it can be frustrating to constantly turn the wipers on and off to meet different rates of precipitation. Have the intermittent wiper relay replaced when it’s practical to do so.

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5,170
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David

10 years of experience
170 reviews
David
10 years of experience
Mercedes-Benz SL400 V6-3.0L Turbo - Pre-purchase Car Inspection - Orlando, Florida
Pre-Purchase service - On time with appointment. Follow up call and report was generated immediately which is greatly appreciate. Many thanks!!

Clifton

30 years of experience
289 reviews
Clifton
30 years of experience
Mercedes-Benz E550 V8-5.5L - Alternator - Lake Worth, Florida
Very good

Michael

16 years of experience
606 reviews
Michael
16 years of experience
Mercedes-Benz E320 V6-3.2L - Serpentine/Drive Belt - Alpharetta, Georgia
Michael was very friendly and knowledgeable. He performed the work in a timely manner while describing the process. I will definitely use him again. Great customer experience, glad that I found the yourmechanic.com site!

Anthony

28 years of experience
113 reviews
Anthony
28 years of experience
Mercedes-Benz C300 V6-3.5L - Oil Change - Bellport, New York
Top service. Always good to see someone who loves what they do execute their work. I feel comfortable when Anthony works on my vehicle because I trust that he knows what he is doing. He speaks with ease about what he does and confidence. You can tell he has been doing this long enough to be considered an expert.

Excellent Rating

(5,558)

Rating Summary
5,170
189
54
28
117
5,170
189
54
28
117
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