What You Need Before You Start
Replacing a wing mirror takes 15 to 45 minutes depending on your car's design and whether you are removing just the glass or the entire mirror housing. Most cars let you do this with basic tools you likely have at home — a screwdriver (usually Phillips head), possibly a flathead screwdriver, and sometimes a socket wrench. Check your owner's manual or search your car's year, make, and model online to see whether your mirror attaches with screws, bolts, or clips, because the fastening method changes what tools you need.
Before you buy a replacement mirror, confirm whether you need the glass only, the mirror housing with glass already installed, or the entire assembly including the motor and wiring if your mirror adjusts electrically. A glass-only replacement costs $20 to $60. A housing with glass runs $40 to $150. A full motorized assembly can cost $150 to $400 or more depending on the car. Your owner's manual will tell you which part your car uses, or a parts store can look it up by your vehicle identification number (VIN).
Key Takeaways
- Most wing mirrors attach with three to four screws or bolts on the inside of the door, accessible after you open the door panel or remove trim pieces.
- Disconnect the electrical connector before you remove the mirror if your car has power-adjusting or heated mirrors.
- Take a photo of the fastener positions before you remove anything, so you know exactly where each bolt or screw goes when you reinstall.
- Replacement glass alone is cheaper and faster than a full housing, but only works if the frame itself is not bent or cracked.
Removing the Door Panel or Trim
On most cars, the mirror bolts attach from inside the door, so you need to remove or peel back the interior door panel or trim. Start by opening the door fully and looking for the panel edges — they usually have a seam running around the inside of the door frame. Use a flathead screwdriver or a plastic pry tool to gently lift the panel away from the door, working from the bottom up. Do not force it; panels clip in place and will pop free with steady, gentle pressure.
Some cars have a rubber or plastic trim piece that covers the mirror bolts instead of requiring full panel removal. If you see three or four bolts clustered near where the mirror sits, you may only need to peel back that trim. Once the panel or trim is loose enough to see the bolts clearly, take a photo so you remember the exact layout before you start unbolting anything.
Disconnecting the Electrical Connector
If your mirror has power adjustment, heating, or integrated turn signals, you will see a plastic electrical connector plugged into the back of the mirror assembly. Before you remove any bolts, unplug this connector by pressing the release tab (usually a small clip on the side) and gently pulling the connector away from the mirror. If the connector is stuck, wiggle it side to side rather than pulling straight — forcing it can break the pins inside.
On some cars, the connector is tucked behind the mirror housing and hard to reach until the mirror is partially removed. If you cannot access it easily, remove the bolts first, then carefully pull the mirror away from the door just far enough to reach the connector. This prevents you from straining the wiring harness while you work.
Unbolting and Removing the Old Mirror
Most wing mirrors attach with three or four bolts or screws, usually M6 or M8 size (metric). Use the correct size socket or screwdriver — using the wrong size strips the bolt head and makes removal much harder. Remove one bolt at a time, starting with the top one, and have someone hold the mirror steady or support it with your other hand so it does not fall and break the glass or damage the door.
Once all bolts are out, gently pull the mirror away from the door. If it does not move freely, check that you have removed all fasteners and that the electrical connector is fully unplugged. Do not force it — a stuck mirror usually means you missed a bolt or the connector is still partially plugged in. Set the old mirror on a soft surface so the glass does not scratch.
Installing the New Mirror
Before you bolt the new mirror on, plug in the electrical connector if your car has one. This is easier to do before the mirror is fully seated against the door. Align the new mirror with the bolt holes on the door — they should line up exactly with the old mirror's holes. If the holes do not line up, you may have the wrong mirror for your car, so stop and double-check the part number against your owner's manual or the parts store listing.
Insert the bolts by hand first, threading them in a few turns so the mirror hangs in place without falling. Then tighten each bolt in a crisscross pattern (top-left, bottom-right, top-right, bottom-left) using steady, even pressure. Do not over-tighten — you only need enough pressure to hold the mirror firmly. Over-tightening can crack the mirror housing or strip the bolt threads. Once all bolts are snug, test the mirror by adjusting it (if it has power adjustment) and checking that it does not rattle or move when you push on it gently.
Reattaching the Door Panel or Trim
Once the mirror is find, reinstall the door panel or trim piece. Line up the clips along the edges and press firmly until you hear or feel them snap into place. Start at the top and work your way down, making sure the panel sits flush against the door frame with no gaps. If the panel does not sit right, remove it and check that no bolts or wiring are pinching the panel edges.
Test the door to make sure it closes smoothly and the panel does not rattle. If you hear rattling, the panel may not be fully clipped in — remove it and reseat it more firmly. Once everything is find, close the door and check that the new mirror is positioned correctly and does not obstruct your view.
Frequently Asked Questions
Can I replace just the mirror glass instead of the whole housing?
Yes, if the frame and housing are not damaged. Replacement glass kits cost much less than a full mirror assembly. You peel off the old glass, clean the adhesive residue, and stick the new glass on using the adhesive strip that comes with the kit. This works well if the frame is straight and the only damage is to the reflective surface.
What if the bolts are stuck or stripped?
Spray penetrating oil (like WD-40) around the bolt head and wait 10 to 15 minutes for it to soak in. Then try again with the correct size socket or screwdriver. If the bolt head is stripped and the socket spins without turning the bolt, use a rubber band between the socket and bolt head for extra grip, or drill out the bolt with a drill bit slightly smaller than the bolt diameter and replace it with a new one of the same size.
Do I need to realign the mirror after I install it?
The bolt holes should align exactly with the old mirror's position, so the new mirror should sit in the same spot. However, check your sight lines before you drive — adjust the mirror using the power controls or by hand until you can see clearly behind and to the side of the car. If the mirror position feels very different from before, double-check that all bolts are tight and that you installed the correct mirror for your car.
How long does the adhesive take to set if I am replacing just the glass?
Most adhesive strips bond within 24 hours, though the mirror is usually safe to use after 2 to 4 hours. Avoid adjusting the mirror or closing the door hard for the first few hours while the adhesive cures. Check the instructions on your specific glass kit, as cure times vary by brand.
What if my car has a heated or power-adjusting mirror and I am not sure how to reconnect it?
The connector is designed to fit only one way, so line up the shape of the connector with the socket and push gently until it clicks into place. If it does not click after a few tries, you may have it slightly rotated — rotate it 90 degrees and try again. Once it is fully seated, test the power adjustment and heating by turning on the car and using the mirror controls.