logo

Mercury LN7 Windshield Wiper Motor 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

(8)

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.

See availability

Customer Ratings

(8)

Windshield Wiper Motor Replacement Service

How much does a Windshield Wiper Motor Replacement cost?

On average, the cost for a Mercury LN7 Windshield Wiper Motor Replacement is $209 with $114 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1982 Mercury LN7L4-1.6LService typeWindshield Wiper Motor - Front ReplacementEstimate$376.03Shop/Dealer Price$451.29 - $654.57
1983 Mercury LN7L4-1.6LService typeWindshield Wiper Motor - Rear ReplacementEstimate$323.39Shop/Dealer Price$390.51 - $569.32
1983 Mercury LN7L4-1.6LService typeWindshield Wiper Motor - Front ReplacementEstimate$356.03Shop/Dealer Price$431.31 - $634.60
1982 Mercury LN7L4-1.6LService typeWindshield Wiper Motor - Rear ReplacementEstimate$323.39Shop/Dealer Price$390.49 - $569.28
Show example Mercury LN7 Windshield Wiper Motor Replacement prices

What is the windshield wiper motor and how does it work?

The windshield wiper motor is a small electric motor. A shaft coming out of the motor connects to a linkage/transmission assembly that converts the rotary shaft movement of the motor to the linear, back-and-forth motion of the wiper arms across the windshield. In addition to the windshield wiper motor in the front, some SUVs, vans, hatchbacks and station wagons have an additional wiper motor mounted in the tailgate to keep the rear window clear.

When to consider replacing the windshield wiper motor?

  • No wiper function at all. Windshield wiper motors can fail, but prior to replacing the motor, the mechanic will check its power supply.
  • Wipers don’t park in the down position. There is an internal switch in the wiper motor that keeps the motor powered after you have shut it off to ensure the wipers park in the right spot. If that switch fails, the wiper motor must be repaired or replaced.
  • Erratic or slow wiper operation. If the electric motor or the transmission have worn excessively, you might experience erratic, intermittent, or slow wiper operation.
  • Grinding or clunking noises. Excessive wear in the motor transmission or wiper linkages may cause noise. A mechanic will determine the cause of the noise before performing repairs.

How do mechanics replace the windshield wiper motor?

  • Remove the cowl and any covers over the wiper motor and transmission assembly.
  • Remove the plug harness to the motor and disconnect the wiper transmission arm from the wiper motor.
  • Remove the bolts holding the motor and transmission assembly to the body of the car.
  • Install the new motor. The plug harness is usually keyed so it can only be inserted in one direction. If not, the proper polarity must be observed. Bolt the motor to the car body.
  • Cycle the motor several times by turning it on and off to establish the park position, then re-attach the linkage transmission assembly to the wiper motor.
  • Install all covers, cowling, and so forth and test operation of the motor on a wetted glass only.

Is it safe to drive with a windshield wiper motor problem?

Yes. So long as the weather is clear and there is no rain, snow, or ice, it is safe. However, if the wiper motor is not functioning properly driving in adverse weather conditions is quite risky and may even be impossible in heavy rain, which will often completely obscure your view through the windshield. Due to the unpredictability of the weather, it is always best to have the windshield wiper system in good working order.

When replacing the windshield wiper motor keep in mind:

  • Never turn on the wipers if the windshield wiper blades are frozen to the windshield or their path is blocked by snow or ice.
  • When the wiper motor is replaced, all the linkages in the wiper system should be lubricated.
  • The rubber inserts in the wiper arm have a lifetime of about 1 to 2 years. Replacing the inserts regularly will make it safer to drive in adverse weather.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of Mercury Windshield Wiper Motor Replacement services completed
88+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(8)
Rating Summary
8
0
0
0
0
8
0
0
0
0

Lewis

16 years of experience
118 reviews
Request Lewis
Lewis
16 years of experience
Request Lewis
by Eric
Mercury Grand Marquis V8-4.6L - Windshield Wiper Motor Replacement (Front) - Duncanville, Texas
Very knowledgeable about the work he is doing worth every penny.

Caster

28 years of experience
176 reviews
Request Caster
Caster
28 years of experience
Request Caster
by Reese
Mercury Cougar V6-2.5L - Windshield Wiper Motor Replacement (Front) - Napa, California
Awesome experience. The convenience factor is huge. Caster was great! Fast, friendly and within the estimate. I will absolutely book with Caster again in the future, and recommend him and YourMechanic to everyone I know who needs auto work. Great, great, great!!

Jeremy

20 years of experience
592 reviews
Request Jeremy
Jeremy
20 years of experience
Request Jeremy
by Sheri
Mercury Grand Marquis V8-4.6L - Windshield Wiper Motor Replacement (Front) - Lake Worth, Florida
Great

Phil

30 years of experience
48 reviews
Request Phil
Phil
30 years of experience
Request Phil
by Devin
Mercury Grand Marquis V8-4.6L - Windshield Wiper Motor Replacement (Front) - Hanover, Maryland
Phil came fully prepared to operate on my vehicle. I was thoroughly impressed with his patience and ability to explain the issue that was preventing my wiper motor from working. If it wasn't for his ability to check every avenue possible, might not have been able to solve the issue. I will highly recommend him to anyone looking for a mechanic that will make sure the job gets done.

Excellent Rating

(8)
Rating Summary
8
0
0
0
0
8
0
0
0
0
Number of Mercury Windshield Wiper Motor Replacement services completed
88+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

Top 10 Tips for Buying a Car in College
Although Although college students may be known for attributes like drive, determination, and intelligence, one thing they aren’t known for is having disposable cash. So, when it comes time for a college guy or gal to buy a car, it’s...
Read more
2012 Nissan Sentra vs. 2012 Nissan Altima: Which One Should I Buy?
When you consider the Nissan Sentra versus the Nissan Altima, you need to realize that you’re crossing between two different classes of vehicle: the Altima is a mid-size sedan while the Sentra is a compact sedan. The differences between the...
Read more
P0036 OBD-II Trouble Code: Heater Oxygen Sensor Control (HO2S) Circuit (Bank 1, Sensor 2)
P0036 Trouble Code definition P0036 is the code for Heater Oxygen Sensor Control (HO2S) Circuit (Bank 1, Sensor 2) What the P0036...
Read more

Car stereo not working

Have a mechanic, such as one of our YourMechanic experts, check the audio system (https://www.yourmechanic.com/services/car-radio-is-not-working-inspection)'s electrical connections and fuses. The mechanic should check the operation of the radio head unit as well as look for any internal faults.
Read more

ABS brakes grab (driver front) upon stopping.

Hey there. As you know, your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS system which is controlled by the car's ECU. When...
Read more

I would like to ask about key fobs

Read more
  1. Home
  2. Estimates
  3. Mercury
  4. LN7
  5. Windshield Wiper Motor Replacement

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

Read FAQ
GET A QUOTE