Mercedes-Benz S450 Car Door Lock Actuator 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

(16)

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

(16)

Car Door Lock Actuator Replacement Service

How much does a Car Door Lock Actuator Replacement cost?

On average, the cost for a Mercedes-Benz S450 Car Door Lock Actuator Replacement is $209 with $104 for parts and $104 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2018 Mercedes-Benz S450V6-3.0L TurboService typeDoor Lock Actuator - Passenger Side Front ReplacementEstimate$631.32Shop/Dealer Price$755.41 - $1087.17
2010 Mercedes-Benz S450V8-4.7LService typeDoor Lock Actuator - Passenger Side Front ReplacementEstimate$487.70Shop/Dealer Price$584.92 - $835.98
2008 Mercedes-Benz S450V8-4.7LService typeDoor Lock Actuator - Passenger Side Front ReplacementEstimate$487.70Shop/Dealer Price$584.91 - $835.98
2009 Mercedes-Benz S450V8-4.7LService typeDoor Lock Actuator - Rear Hatch/Trunk ReplacementEstimate$380.89Shop/Dealer Price$460.98 - $676.53
2009 Mercedes-Benz S450V8-4.7LService typeDoor Lock Actuator - Driver Side Rear ReplacementEstimate$420.50Shop/Dealer Price$500.94 - $701.63
2010 Mercedes-Benz S450V8-4.7LService typeDoor Lock Actuator - Driver Side Front ReplacementEstimate$416.66Shop/Dealer Price$496.11 - $693.90
2010 Mercedes-Benz S450V8-4.7LService typeDoor Lock Actuator - Rear Hatch/Trunk ReplacementEstimate$386.39Shop/Dealer Price$466.36 - $681.81
2008 Mercedes-Benz S450V8-4.7LService typeDoor Lock Actuator - Rear Hatch/Trunk ReplacementEstimate$386.39Shop/Dealer Price$466.77 - $682.53
Show example Mercedes-Benz S450 Car Door Lock Actuator Replacement prices

What is the Door Lock Actuator all about?

A door lock actuator is the component in electronic door locks that is responsible for locking and unlocking the vehicle’s doors. When a button is pressed to lock or unlock a door, the door lock switch triggers the actuator. A small motor in the actuator then triggers a series of gears. The final gear is connected to a rack and pinion set of gears, which converts the rotational motion of the motor into the vertical motion necessary to lock or unlock the door.

Keep in mind:

Some modern vehicles have a complete door lock assembly which can’t be separated into individual components. These vehicles will need the entire assembly replaced, rather than just the actuator.

Our recommendation:

The door lock system shouldn’t be checked unless you notice that something is wrong. As soon as you notice your vehicle behave oddly when you lock or unlock the doors, schedule an inspection.

What common symptoms indicate you may need to replace the Door Lock Actuator?

  • Doors won’t lock.
  • Doors won’t unlock.
  • Doors will only lock or unlock sporadically.
  • Doors make an unusual noise while locking or unlocking.
  • Car alarm goes off randomly.

How important is this service?

A door lock actuator is responsible for locking and unlocking your doors. When the door lock switch is triggered, the actuator’s motor powers a set of gears that lock or unlock your door. When the actuator stops working, there is no communication between the door lock switch and the door locks, and you’ll be unable to lock or unlock the door.

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

(16)

Rating Summary
13
2
1
0
0
13
2
1
0
0

Ricardo

14 years of experience
339 reviews
Ricardo
14 years of experience
Mercedes-Benz S450 V6-3.0L Turbo - Pre-purchase Car Inspection - Culver City, California
Ricardo is very trustworthy, responsible, on time for the service , and fast reply.

Kenneth

20 years of experience
775 reviews
Kenneth
20 years of experience
Mercedes-Benz S450 V6-3.0L Turbo - Pre-purchase Car Inspection - Los Angeles, California
Kenneth is very friendly and easy to work with.

Chuy

14 years of experience
398 reviews
Chuy
14 years of experience
Mercedes-Benz GL450 V8-4.7L - Door Lock Actuator Replacement (Driver Side Front) - Chicago, Illinois
This was his first time working on a Mercedes-Benz so it took him a little bit longer he was able to complete the job.

Bob

30 years of experience
42 reviews
Bob
30 years of experience
Mercedes-Benz ML350 V6-3.5L - Door Lock Actuator Replacement (Passenger Side Front) - Del Mar, California
Bob is a true mechanic and not one of the "oil change guys." Performed a difficult repair and did an excellent job.

Excellent Rating

(16)

Rating Summary
13
2
1
0
0
13
2
1
0
0
Number of Mercedes-Benz Car Door Lock Actuator Replacement services completed
176+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

P0058 OBD-II trouble code: HO2S Heater Control Circuit High (Bank 2 Sensor 2)
P0058 P0058 trouble code definition The definition of the trouble code P0058 is heated oxygen sensor heater control circuit high voltage bank 2 sensor 2. What the P0058 code means When this code is stored in the powertrain control module...
P2700 OBD-II Trouble Code: Transmission Friction Element "A" Apply Time Range/Performance
P2700 means the transmission friction element application needs attention, possibly because of a leak in the transmission or defective pump.
P0344 OBD-II Trouble Code: Camshaft Position Sensor Circuit Intermittent
P0344 means that signal is missing at one point or another at the camshaft position sensors. This is usually due to an electrical circuit fault.

How do I test which camshaft sensor is bad? My Check Engine Light is on and the scanner says a bad camshaft sensor is at fault.

There is only one cam position sensor on this engine, located just in front of the oil filler cap. Testing camshaft/crankshaft sensor failures, unfortunately, often only has 2 options for testing a suspect component: Replace it with a known working...

Have a Mitsubishi Lancer 30th anniversary 2011, making a rattling noise when accelerating and loss of power. There is occasional smoke.

Hi there. The rattling noise is the ignition system being too retard or advanced as the engine is accelerated. Check the camshaft position sensor and see if the sensor is connected and sending a voltage reference to the computer. To...

how can i find the reviews for the mechanic they sent me

Hi: If you visit the YourMechanic list of "cities served" located here (https://www.yourmechanic.com/city), please scroll through that list until you come to your city. Click on your city and your mechanic should appear in a list. Simply click on that...

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