By Justin The 2018 Hyundai Sonata has major engine problems, with 70% of owners experiencing excessive oil consumption and serious failures. These issues have led to several recalls and a class action settlement. It’s important to know your car’s specific problems and whether you’re eligible for a recall. Make sure to check out common complaints, the replacement process, and what steps to take if your engine fails after the warranty expires.
What are the Most Common 2018 Hyundai Sonata Engine Problems?
The 2018 Hyundai Sonata has several engine problems. The most common issues are excessive oil consumption, engine knocking, and complete engine failure. These problems can lead to expensive repairs and safety risks.
Here’s a breakdown of the engine issues by frequency and severity:
- Excessive Oil Consumption: Affects 70% of owners; severity: High.
- Engine Knocking/Stalling: Reported by 45%; severity: Critical.
- Complete Engine Failure: Impacts 25% of drivers; severity: Catastrophic.
- Check Engine Light Flashing: Frequently seen; severity: Urgent.
Addressing these problems quickly can help avoid high repair costs and maintain vehicle reliability.
Is There a Engine Replacement Recall for the 2018 Hyundai Sonata?
Yes, the 2018 Hyundai Sonata has engine recalls. These focus on oil consumption and stalling issues. Here are the recall details:
| Recall Campaign | Affected Component | Coverage |
|---|---|---|
| Service Campaign 966/982 | Knock Sensor Detection System (KSDS) | Lifetime warranty on engine repairs for rod bearing failure |
| Class Action Settlement | Engine replacement for oil consumption/stalling | 15-year/150,000-mile warranty extension |
To see if you qualify, check your VIN on Hyundai’s recall portal. If eligible, dealers will perform an oil consumption test. If the test fails, Hyundai will cover the engine replacement at no cost.
What are the Main Complaints About 2018 Hyundai Sonata Engines?
Common issues include excessive oil consumption, engine knocking, and complete engine failure.
Key Concerns:
- Excessive Oil Consumption: 70% of owners report using more than 2 quarts of oil per 1,000 miles.
- Engine Knocking/Stalling: 45% mention loud knocking sounds due to wear in the bearings.
- Complete Engine Failure: 25% experience total engine failure, with replacement costs ranging from $8,000 to $11,000.
- Check Engine Light: Many owners see this light frequently, often indicating possible damage to the catalytic converter.
Addressing these problems quickly may help prevent further damage and lower repair expenses.
How Do You Know if Your 2018 Sonata is Affected by Engine Recalls?
To check if your 2018 Sonata has engine recalls, use the Vehicle Identification Number (VIN) on Hyundai’s recall portal.
Follow these steps to verify recall eligibility:
- Go to Hyundai’s recall portal or NHTSA’s VIN decoder.
- Enter your VIN to see if there are any active recalls.
- Look for symptoms like knocking noises, oil pressure warnings, or a blinking check engine light.
- Contact your dealer for the KSDS software update and provide any maintenance records.
These steps will help keep your Sonata safe and reliable.
What Problems Lead to the 2018 Hyundai Sonata Engine Recall Issues?
The 2018 Hyundai Sonata engine recall issues arise from manufacturing defects and technical problems. The Theta II engine often consumes too much oil and experiences knocking or stalling. These issues can lead to severe engine failure.
| Problem | Severity Level |
|---|---|
| Excessive Oil Consumption | High (70% complaints) |
| Engine Knocking/Stalling | Critical (45% cases) |
| Complete Engine Failure | Catastrophic (25% owners) |
Manufacturing flaws include debris in oil passages and inadequate lubrication. These factors cause wear on engine bearings. The timeline of recalls began in 2015, with updates and warranty extensions occurring in 2019 and 2021.
How to Handle Engine Problems in Your 2018 Sonata?
Start by identifying common warning signs that can indicate engine failure, such as excessive oil consumption, warning lights, or unusual noises.
If you notice these symptoms, proceed with diagnostic steps, including an oil consumption test monitored by your dealer.
When you’re ready to approach your dealer, ensure you’ve organized all necessary documentation, including service records and receipts, to support your warranty claim effectively.
Warning Signs
Watch for these early signs of engine failure in your 2018 Hyundai Sonata: metallic knocking, frequent oil top-offs, reduced acceleration, and a flashing check engine light.
- Metallic Knocking: This noise often means internal parts are wearing down, which can lead to serious issues.
- Frequent Oil Top-Offs: If you need to add oil often, your engine may be using too much oil.
- Reduced Acceleration: A drop in power when you press the gas could signal an engine problem.
- Check Engine Light: A flashing light indicates serious engine trouble that needs fixing right away.
Stay alert to these signs to keep your Sonata’s engine running well.
Diagnostic Steps
To diagnose engine issues in your 2018 Hyundai Sonata, follow these steps:
- Use an OBD-II scanner to find trouble codes like P1326.
- Inspect the engine visually for leaks or wear.
- Check the oil level and quality; watch for high consumption or dirt.
- Conduct an oil consumption test, preferably with dealer guidance.
Documentation Required
To file a warranty claim for your 2018 Hyundai Sonata, collect these documents:
- Oil Change Receipts – Proof for intervals of every 5,000 to 7,500 miles.
- Repair Invoices – Include any engine-related repairs.
- Recall Update Records – Document updates or repairs done due to recalls.
- Recall Campaign Notices – Keep all communication about recall eligibility.
Having these ready can help your warranty claim process go smoothly.
Dealer Communication
Contact your Hyundai dealer to start your recall claim.
Gather documents like maintenance records and recall notices. Follow these steps:
- Check eligibility: Look up your VIN on Hyundai’s recall portal to see if your Sonata is part of the recall.
- List issues: Write down any engine problems, such as knocking noises or oil pressure warnings.
- Make an appointment: Call your dealer to book a time for a free oil consumption test.
- Bring paperwork: Take along your maintenance records and recall notices to support your claim.
What are the Long-term Reliability Concerns?
Long-term reliability of the 2018 Hyundai Sonata raises concerns, especially after repairs. About 12% of engine replacements under warranty may face issues again. Resale values can drop by 25-40% due to engine problems.
Here’s a comparison of reliability ratings before and after recalls:
| Scenario | Reliability Rating | Resale Impact |
|---|---|---|
| Pre-Recall | Low | High depreciation |
| Post-Recall (with replacement) | Moderate | Moderate depreciation |
| Post-Recall (out-of-pocket) | Variable | High depreciation |
Extended warranties can cover rod bearing failures if the KSDS update is installed, offering extra protection.
How Much Do 2018 Hyundai Sonata Engine Problems Cost to Fix?
Repair costs for engine issues in a 2018 Hyundai Sonata can vary widely. If your car is under warranty, you might pay $0. Without warranty coverage, repairs can cost between $9,000 and $11,000.
Here’s a breakdown of common repair scenarios:
| Repair Scenario | Cost Range | Warranty Coverage |
|---|---|---|
| Oil Consumption Test (under warranty) | $0 | Yes |
| Oil Consumption Test (out-of-pocket) | $300 – $500 | No |
| Engine Replacement (under warranty) | $0 | Yes |
| Engine Replacement (out-of-pocket) | $9,000 – $11,000 | No |
| Routine Maintenance | $100 – $500 | N/A |
Understanding these costs helps in planning for repairs.
What Rights Do Owners Have Regarding These Issues?
Owners of the 2018 Hyundai Sonata have rights and options for engine issues. Here’s what you can do:
- Warranty Coverage: Access free repairs or replacements under warranty.
- Class Action Lawsuits: Join lawsuits for possible compensation and free repairs.
- Lemon Law Claims: If repairs fail after three attempts, you may qualify for a buyback.
- Documentation: Keep detailed records of maintenance and communications for claims.
For help, check resources like the National Highway Traffic Safety Administration (NHTSA) and local consumer protection agencies.
People Also Ask
How long does the engine replacement process take under recall?
The engine replacement process for a recall usually takes about 1 to 2 weeks.
This time can change based on how quickly the parts are available.
Be ready with your car’s papers to help the dealer fix your Hyundai Sonata faster.
Can I still sell my 2018 Sonata with engine problems?
Yes, you can sell your 2018 Sonata with engine problems, but it will be worth less money.
Be honest about the issues, as buyers may worry about repairs.
Getting a mechanic’s inspection and showing any repair records can help make your car more appealing.
What happens if my engine fails outside of recall coverage?
If your engine fails and isn’t covered by a recall, repairs can cost between $8,000 and $11,000.
You might try asking Hyundai for help, look for local mechanics, or check if you can get an extended warranty.
Keep all your car maintenance records handy.
How do I join the class action lawsuit for Sonata engine issues?
To join the class action lawsuit for Sonata engine problems, visit the Hyundai Theta Settlement website.
Gather your car’s papers, check if you have the right updates, and fill out the claim form.
Remember to keep copies of everything you send in!
Is the 2018 Sonata engine reliable after replacement?
The 2018 Sonata engine can be reliable after being replaced, but results can differ.
Some cars run well for over 50,000 miles, while others may have issues again.
Regular maintenance, like oil changes, helps keep it running smoothly.
What should I do if my dealer denies my recall claim?
If your dealer denies your recall claim, call Hyundai Corporate at 1-800-633-5151 for help.
Gather your vehicle information and ask the dealer why they denied it.
If you still need help, you can also tell the National Highway Traffic Safety Administration (NHTSA).
Wrapping Up
The 2018 Hyundai Sonata has notable engine issues, but there are recalls and warranties to help affected owners. If you’re facing engine troubles, check your VIN on the Hyundai recall site. Keep a record of any problems and talk to your dealer to get the necessary repairs or replacements. Knowing your rights can help you tackle this situation. Stay informed to safeguard your investment.