How to Replace the Side View Mirror on a 2018 Kia Sportage (Step-by-Step)
Complete DIY guide with door panel removal, tools/parts list, wiring tips, and mirror torque specs (8 Nm / 71 in-lbs)
How to Replace the Side View Mirror on a 2018 Kia Sportage (Step-by-Step)
Complete DIY guide with door panel removal, tools/parts list, wiring tips, and mirror torque specs (8 Nm / 71 in-lbs)


š§ Sportage - Side View Mirror Replacement
On your Sportage, the side view mirror is bolted to the door from the inside and plugged into the door wiring harness. Replacing the complete mirror assembly usually requires removing the interior door panel to access the mirror connector and mounting nuts.
Difficulty Level: Intermediate | Estimated Time: 1.0-2.0 hours (per side)
ā ļø Safety & Precautions
- ā ļø Disconnect the 12V battery negative terminal before removing the door panel (side-impact airbag wiring runs in the door).
- ā ļø Keep the window fully up while working inside the door.
- ā ļø Support the door panel as you unplug connectors to avoid straining wires.
- ā ļø Donāt tear the vapor barrier (plastic sheet); it prevents water leaks into the cabin.
š§ Required Tools
You'll need the following tools for this repair:
- 10mm socket
- 1/4" drive ratchet
- 6" extension (1/4" drive)
- Torque wrench (inch-pound capable)
- Phillips #2 screwdriver
- Plastic trim removal tool set
- Pick tool (small)
- Needle-nose pliers
- Painterās tape (1" wide)
- Panel clip pliers (specialty)
- Work gloves
- Safety glasses
š© Required Parts
HowToo sells all the parts you need for this repair:
- Side view mirror assembly (correct side, options-matched) - Qty: 1
- Door panel trim clips - Qty: 4-10 (as needed)
- Butyl tape (vapor barrier adhesive) - Qty: 1 (as needed)
š Before You Begin
- Park on level ground, shift to Park, and turn the ignition OFF.
- Lower the window slightly, then raise it fully (helps confirm itās seated and gives hand room).
- Use painterās tape along the mirror base edge to protect paint.
- Disconnect the battery negative cable using a 10mm socket, then wait at least 3 minutes.
šØ Step-by-Step Instructions
Follow these steps in order:
Step 1: Remove the inside mirror trim (sail panel)
- Use a plastic trim removal tool set to gently pry off the small triangular trim cover at the front top corner of the door.
- If it has a tweeter speaker, unplug it carefully using a pick tool (small) to release the connector lock. Donāt pull on wires.
Step 2: Remove the door panel fasteners
- Use a plastic trim removal tool set to pop off the inner door-handle bezel/cover (if equipped) to reveal screws.
- Remove visible screws in the armrest/handle area using a Phillips #2 screwdriver.
- If any fastener is a bolt instead of a screw, remove it with a 10mm socket and 1/4" drive ratchet.
Step 3: Release the door panel clips and lift the panel off
- Start at the bottom edge and use a plastic trim removal tool set to pop the panel clips free around the perimeter.
- If clips are stubborn, use panel clip pliers (specialty) to pull straight out (reduces broken clips).
- Lift the door panel upward to unhook it from the window ledge, then hold it close to the door.
Step 4: Disconnect door panel wiring and the handle cable
- Unplug electrical connectors using a pick tool (small) to release locking tabs (window switch, lock switch, courtesy light, etc.).
- Disconnect the interior handle cable: use a needle-nose pliers to rotate the cable retainer out, then lift the cable end out of its slot.
- Set the door panel somewhere safe to prevent scratching.
Step 5: Peel back the vapor barrier near the mirror area
- Carefully peel the plastic sheet back just enough to reach the mirror wiring and nuts.
- If the adhesive wonāt stick later, plan to use butyl tape during reassembly.
Step 6: Disconnect the mirror electrical connector
- Locate the mirror harness connector inside the door near the mirror mount area.
- Press the lock tab and unplug it. If itās tight, use a pick tool (small) gently on the tab.
- This connector may include features like heating, turn signal, blind-spot indicator, and power-fold (options vary).
Step 7: Remove the mirror mounting nuts
- Support the mirror from the outside with one hand (or have a helper hold it).
- Remove the 3 mounting nuts using a 10mm socket, 6" extension (1/4" drive), and 1/4" drive ratchet.
- Remove the mirror assembly from the outside and feed the wiring through the opening.
Step 8: Install the new mirror assembly
- Feed the mirror wiring through the door opening and position the mirror on the studs.
- Start all 3 nuts by hand to avoid cross-threading.
- Tighten using a 10mm socket and 1/4" drive ratchet, then final-tighten with a torque wrench (inch-pound capable): Torque to 8 Nm (71 in-lbs).
Step 9: Reconnect wiring and reseal the vapor barrier
- Plug in the mirror connector until it clicks.
- Press the vapor barrier back into place; use butyl tape if needed to fully seal edges.
Step 10: Reinstall the door panel
- Reconnect all door panel electrical connectors by hand.
- Reconnect the interior handle cable (seat the cable end, then lock the retainer back in place) using needle-nose pliers if needed.
- Hang the panel on the upper window ledge, then press clips in around the perimeter with your hands.
- Reinstall screws/bolts using a Phillips #2 screwdriver and/or 10mm socket.
- Snap the sail panel back on using your hands (and reconnect the tweeter if equipped).
Step 11: Reconnect the battery
- Reconnect the negative battery cable using a 10mm socket.
ā After Repair
- Test mirror adjust (left/right/up/down) with the mirror switch.
- Test heated mirror (if equipped), turn signal on mirror (if equipped), and power-fold (if equipped).
- Confirm blind-spot indicator light operation (if your mirror has the icon) during a short drive.
- Verify the window, door lock, and door handle work normally.
- Listen for rattles; if you hear one, a door clip may be mis-seated.
š° DIY vs Shop Cost
Shop Cost: $350-$900 (parts + labor, depends on options/paint)
DIY Cost: $120-$650 (parts only)
You Save: $230-$250+ by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-1.5 hours.
šÆ Ready to get started?
HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.

















