A Guide to the Starter for the 2008-2013 Kia Optima
If your Kia Optima just clicks or refuses to crank, this guide will help you understand the problem and find the right replacement starter.
- The most common sign of starter failure is a loud click with no engine crank; however, always test the battery first.
- Replacement is a feasible DIY job, requiring the intake manifold to be loosened for access.
- There are no recalls for the starter, so repair costs will not be covered by the manufacturer.
- For a reliable replacement, choose an OEM-equivalent brand like Mando or a premium brand like Bosch or Denso.
Is Your Optima's Starter Failing?

A failing starter rarely dies without warning. For the 2008-2013 Kia Optima, the signs are usually clear. Recognizing them early can save you from being stranded. The most common symptom owners report is a single, loud click when turning the key, with the engine failing to crank.
Always Test Your Battery First!
🎬 Watch: Troubleshooting a no-crank issue with a good battery.Many starter symptoms can also be caused by a weak or dead battery, or corroded battery terminals. Before you decide to replace the starter, make sure your battery is fully charged and the connections are clean and tight. Many auto parts stores will test your battery for free.
Common Failure Symptoms

- Single Loud Click: This is the classic sign of a bad starter. The noise is the starter's solenoid engaging, but the motor itself lacks the power or has an internal failure preventing it from turning the engine.
- No Crank, No Click: If you turn the key and nothing happens, the issue could be in the electrical path to the starter, including the starter relay or the solenoid itself.
- Intermittent Starting: The car starts fine one day but refuses to crank the next. This can indicate a developing dead spot in the starter motor or a loose electrical connection.
- Whirring or Grinding Noise: If you hear a whirring sound without the engine engaging, the starter gear may not be properly meshing with the engine's flywheel. A grinding noise after the engine has started means the starter is not disengaging, which can cause serious damage.
Choosing the Right Aftermarket Starter

When replacing the starter on your Optima, you have several quality tiers to choose from. The original starters were typically made by Mando or Valeo.
Brand Quality Tiers
- Premium Brands (Bosch, Denso): These brands are known for high-quality engineering and are often considered equal to or better than original equipment. They are a top choice for reliability and longevity, though they usually come at a higher price.
- OEM-Equivalent Brands (Mando, Valeo): Since Mando and Valeo were original suppliers to Kia, choosing one of these brands is like getting a factory part. They offer a great balance of proven quality and cost.
- Standard Aftermarket Brands (WAI Global, Remy, BBB Industries): These brands provide a cost-effective solution for getting your car back on the road. They are reliable options that meet standard replacement needs.
Replacement Cost for a 2008-2013 Kia Optima Starter

The cost can vary based on the brand you choose and labor rates in your area. The starter is located under the intake manifold, and replacement typically takes 1-2 hours.
| Part Type | Estimated Part Cost |
|---|---|
| New Aftermarket | $123 - $289 |
| New OEM | $190 - $350 |
| Remanufactured | $160 - $345 |
| Shop Labor | $150 - $300 |
A Note on Installation
The starter is located underneath the plastic intake manifold on both the 2.4L and 2.7L engines. While some guides show a full removal of the manifold, many DIY mechanics have found success by simply unbolting the manifold and propping it up to gain the necessary clearance to access the two starter bolts. This can save significant time and complexity. 🎬 See how to replace the starter without removing the manifold. Always disconnect the negative battery terminal before beginning work.
Frequently Asked Questions
Can I drive my Optima with a failing starter?
No. While the car will run normally once started, a failing starter is unreliable. The next time you turn the car off, it may not start again, leaving you stranded.
Is a new aftermarket starter as good as the original Kia part?
It depends on the brand. Premium brands like Bosch and Denso, or OEM-equivalent brands like Mando and Valeo, often meet or exceed original specifications and are excellent choices. Standard brands offer a good value but may not have the same longevity as a premium or OEM part.
Is this a difficult DIY job? 🎬 Watch this video to see the starter location and removal.
For a moderately experienced DIYer, this job is very manageable. It requires basic hand tools (sockets, wrenches). The main challenge is accessing the starter by loosening the intake manifold. The job can typically be done in 1-2 hours.
Are there any recalls on the 2008-2013 Optima starter?
No, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from Kia or the NHTSA for starter motor failure on the 2008-2013 Optima.
Helpful Videos
Technical Specifications
OEM Part Numbers: 36100-25020 36100-2G000 36100-3E020 36100-3E100 36100-2G100
Fits 2.4L I4 and 2.7L V6 engines for the 2008-2013 Kia Optima. Typically a 12-volt motor with an 8-tooth pinion gear and a power rating of 1.2 kW. Part numbers may vary between engine sizes, so confirm fitment before ordering.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Kia Optima: