How to Replace the Starter Motor on a 2014-2023 Mazda CX-5 (Engine: Inline 4 2.5L)
Step-by-step instructions with tools, parts, torque specs, and safety tips
How to Replace the Starter Motor on a 2014-2023 Mazda CX-5 (Engine: Inline 4 2.5L)
Step-by-step instructions with tools, parts, torque specs, and safety tips for 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
🔧 Starter Motor - Replacement
The starter motor is mounted low on the engine and has to be removed from the top and/or bottom of the engine bay depending on access. The job mainly involves disconnecting the battery, removing the air intake components for room, then unbolting the starter and swapping over the wiring.
Difficulty Level: Intermediate | Estimated Time: 2-4 hours
⚠️ Safety & Precautions
- Disconnect the negative battery cable before touching the starter wiring. The starter cable is always hot.
- Let the engine cool down completely before working near the exhaust and starter area.
- If you raise the vehicle, support it with jack stands. Never rely on a jack alone.
- Keep metal tools away from the battery positive cable and starter terminal.
- Use eye protection. Dirt and rust often fall when the starter comes out.
🔧 Required Tools
You'll need the following tools for this repair:
- 10mm wrench
- 10mm socket
- 12mm socket
- 14mm socket
- Ratchet
- Short extension
- Long extension
- Torque wrench
- Flat blade screwdriver
- Trim clip tool
- Floor jack (rated 3-ton minimum)
- Jack stands
- Wheel chocks
- Safety glasses
- Nitrile gloves
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Starter motor assembly - Qty: 1
- Starter mounting bolt set - Qty: 1
- Air cleaner duct clips - Qty: 1 set
📋 Before You Begin
- Park on level ground and set the parking brake.
- Shift to Park and remove the key or keep the key fob away from the vehicle.
- Disconnect the negative battery terminal first using a 10mm wrench.
- Wait at least 5 minutes after disconnecting the battery before working near the starter wiring.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Disconnect the battery
- Use a 10mm wrench to remove the negative battery cable from the battery terminal.
- Move the cable aside so it cannot spring back and touch the terminal.
- Cover the terminal end with a rag.
Step 2: Remove intake ducting for access
- Use a flat blade screwdriver and trim clip tool to remove the air intake duct and any retaining clips blocking access to the starter.
- Lift the ducting out carefully and set it aside.
Step 3: Raise the front of the vehicle if needed
- If lower access is needed, chock the rear wheels.
- Use a floor jack (rated 3-ton minimum) and support the vehicle with jack stands.
- Remove the lower splash shield fasteners if they block starter access.
Step 4: Disconnect the starter wiring
- Use a 10mm socket or 12mm socket to remove the main power cable nut from the starter terminal.
- Remove the smaller solenoid connector by hand or gently with a screwdriver if equipped with a locking tab.
- Keep the cable ends away from metal parts.
- Tightening spec later: terminal nut 5-7 Nm (44-62 in-lbs).
Step 5: Remove the starter motor
- Use a 14mm socket, ratchet, and extensions to remove the starter mounting bolts.
- Support the starter with one hand while removing the last bolt. It is heavier than it looks.
- Lower the starter out of the engine bay.
- Tightening spec later: starter mounting bolts 44-54 Nm (32-40 ft-lbs).
Step 6: Install the new starter
- Position the replacement starter in place by hand.
- Start both mounting bolts by hand first to avoid cross-threading.
- Use a 14mm socket and torque wrench to tighten the bolts to 44-54 Nm (32-40 ft-lbs).
Step 7: Reconnect the starter wiring
- Reconnect the small solenoid connector until it clicks.
- Install the main power cable and tighten the nut with a 10mm socket or 12mm socket to 5-7 Nm (44-62 in-lbs).
- Make sure the cable boot is fully seated over the terminal.
Step 8: Reassemble intake and splash shields
- Reinstall the intake ducting and all clips with a flat blade screwdriver and trim clip tool.
- Reinstall the lower splash shield if it was removed.
- Lower the vehicle if it was raised.
Step 9: Reconnect the battery and test
- Reconnect the negative battery cable with a 10mm wrench.
- Start the engine and listen for normal cranking speed and smooth engagement.
- If the starter does not crank, recheck the battery connection and starter wiring.
✅ After Repair
- Start the engine several times to confirm consistent operation.
- Check for loose battery terminals or loose starter wiring.
- Make sure no warning lights appear after the repair.
- If the starter still clicks or cranks slowly, test the battery and charging system next.
💰 DIY vs Shop Cost
Shop Cost: $450-$850 (parts + labor)
DIY Cost: $180-$350 (parts only)
You Save: $270-$500 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-4 hours.
🎯 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.
Guide for Starter Motor replace for these Mazda vehicles
| Year Make Model | Sub Model | Engine | Body Style |
|---|---|---|---|
| 2023 Mazda CX-5 | - | Inline 4 2.5L | - |
| 2022 Mazda CX-5 | - | Inline 4 2.5L | - |
| 2021 Mazda CX-5 | - | Inline 4 2.5L | - |
| 2020 Mazda CX-5 | - | Inline 4 2.5L | - |
| 2019 Mazda CX-5 | - | Inline 4 2.5L | - |
| 2018 Mazda CX-5 | - | Inline 4 2.5L | - |
| 2017 Mazda CX-5 | - | Inline 4 2.5L | - |
| 2016 Mazda CX-5 | - | Inline 4 2.5L | - |
| 2015 Mazda CX-5 | - | Inline 4 2.5L | - |
| 2014 Mazda CX-5 | - | Inline 4 2.5L | - |
















