This article will walk you through the steps of replacing your actuator and getting those locks working properly once again. Show This article applies to the Acura MDX. Your Acura's power door locks are controlled, like many other components, by an actuator. Actuators are pretty simple devices that use a small electric motor to turn a series of gears that serve as a gear reduction. The last gear in the series turns a gearset that is connected to an actuator rod, which turns the rotational spinning of the gears into a linear motion that locks or unlocks your doors. Generally, over time, the tiny little electric motors go bad and render your actuators useless. Replacing them is a fairly time consuming process, but it isn't too difficult. Keep reading and we'll walk you through the process.  Materials Needed
Step 1 – Remove door parts
Step 2 – Remove the actuator
Step 3 – Install the new actuator
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After spending approximately 4 hours, I succeeding in changing my Acura MDX 2004 Driver's Door Actuator. There are good how to posts available elsewhere. So I will summarize the key points that were most difficult: Tools Needed See image for reference. Key Steps Easy ones first: Now for the harder parts: 2. Now remove the three screws at the end of the door. Be very careful to not strip them. Push hard and deliberate while you twist off. Use your number #3 Phillips. I had extra screw on hand because someone did work here once before and stripped one of the screws. See part number in image. 3. Now lower the entire unit about an inch and should be able to remove electrical connectors (B) in the image. 4. I could not remove Rod (D) in the image. It appears I would have had to take off the external door lock to get to the lock screw. I wasted about 45 minutes until I gave up. 5. Rod (F) required that I unscrew the plastic decorative door lock and with just enough clearance, I was able to get the rod inside the hole so that I could manipulate the entire unit by slightly twisting. Lower the entire lock unit and be patient. 6. I had to carefully twist the entire unit while Rod (D) was attached enough so that I could get the unit out the door panel hole so I could work on it. I suspect I put a bit more pressure on it than I wanted but I became desperate while trying not to break anything. Finally, replace the Actuator: 2. After replacing the actuator, go in the reverse order to reassmble. 3. The hardest part is getting Rod (E) back on. The only way I could do it is to bend back the flexible white protective cover discussed earlier so I could see what I was doing. 4. Assemble back and carefully check the operation by plugging your electrical components back in to see that everything works. Check the key and the outside door handle as well. Remember, the door will not lock via the up / down central lock mechanism while the door is opened. This fooled me twice. Acura MDX Door Actuator Replacement Image How long does it take to replace a mode door actuator?Replacing the blend door actuator is actually a fairly simple process, and it should take no more than an hour. So the labor will cost you around $75 – $150 depending on labor rates at your local repair shop.
How much does it cost to fix an actuator door?The average car actuator replacement cost is $300, depending, of course, upon your car's make and model. In most cases, a mechanic will remove the malfunctioning actuator and replace it with a functioning one.
Why do door lock actuators fail?(If there is no voltage, the problem is separate and electrical). There are several factors that can cause a door lock actuator to fail. One is corrosion. Over time, moisture, oil, dust, and debris can enter the actuator or the mechanical links.
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2004 acura mdx door lock actuator replacement
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