2011-2018 Kia Sorento Steering Column: Diagnosing the Common Clunk and Failure Symptoms

Common Failure Symptoms

Diagnosing a steering column issue in a 2011-2018 Sorento often starts with a distinct noise. However, other symptoms can point to different problems within the column assembly.

Clicking or Clunking Noise When Turning

This is the most widespread issue for this Sorento generation. A noticeable 'clunk' or 'click' sound is heard and felt through the steering wheel, especially when turning at low speeds or while stopped. This noise is almost always caused by the disintegration of a small, rubber part inside the electric power steering motor called the flexible coupler. This part acts as a vibration dampener. Over time, the rubber breaks down, leaving a gap that allows for metal-on-metal contact between the motor and the steering shaft, creating the signature clunk.

Steering Feels Loose, Sticky, or Has Play

A feeling of excessive play or looseness in the steering wheel can be a symptom of a worn flexible coupler. Some owners also report a 'sticky' or 'notchy' feeling, particularly at highway speeds, where small steering corrections require extra effort before the power assist engages, sometimes leading to overcorrection. In rare, severe cases related to a specific recall, extreme looseness could indicate the steering column is separating from its mounting.

Grinding or Rough Steering

A grinding or rough feeling when turning the wheel often points to failing bearings inside the steering column. This is different from the distinct 'clunk' of the coupler and is usually more of a continuous, rough sensation as the wheel rotates.

Airbag Light, Horn, or Steering Wheel Controls Not Working

If your horn, cruise control, or radio buttons stop working, and you see an airbag warning light on the dashboard, the problem is likely a failed clockspring. The clockspring is a special rotary electrical connector located within the steering column that allows the steering wheel to turn without breaking the electrical connections for these components.

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

The Flexible Steering Coupler (MDPS Coupler)

The failure of the flexible steering coupler (part number 56315-2K000-FFF) is the single most common problem. While not a formal safety recall for most vehicles, Kia has acknowledged the issue through Technical Service Bulletins (TSBs) like CHA072, CHA044, and CHA074, which provide procedures for replacing the coupler. In some cases, Kia extended the warranty for this specific part to 10 years/unlimited mileage, particularly in high-humidity states where the part was found to degrade faster. The repair involves dropping the steering column to access and disassemble the MDPS motor.

NHTSA Recall 18V-656 (Kia Campaign SC167): Steering Column Separation

Buying a Used 2011-2018 Sorento Steering Column

A used OEM steering column can be a cost-effective solution, but careful verification is essential to ensure you get the right part. Given the complexity and integration of this part, a quality recycled OEM column is often a safer bet than a cheap, new aftermarket unit.

Compatibility: The Most Important Check

The single biggest compatibility trap is the ignition system. You must match the column to your vehicle's setup.

• Conventional Key Ignition: For models where you insert and turn a physical key. These columns have a different wiring harness and mounting for the ignition lock cylinder.
• Smart Key (Push-Button Start): For models with keyless ignition. These columns are designed to work with the push-button start system and will not work on a conventional key vehicle, and vice-versa.

Always verify this before purchasing. The provided OEM part numbers confirm these variations. For example, for 2011-2013 models, part 563101U100 is for vehicles without a smart key, while 563101U110 is for vehicles with a smart key.

Physical Inspection Checklist

• Check for Completeness: Ensure the column comes with the MDPS motor and any attached control modules.
• Inspect Wiring: Look for any cut wires, damaged connectors, or signs of amateurish repairs.
• Check for Physical Damage: Inspect the column shaft for bends and the mounting brackets for cracks or stress marks, which could indicate it came from a vehicle in a major collision.
• Ask About the Coupler: If possible, ask the seller if the flexible coupler has been replaced. If buying from a salvage yard, this information is unlikely to be available. Plan on potentially needing to replace the coupler as a preventative measure.

Cost of Replacement

The cost can vary significantly depending on whether you need the full assembly or just the flexible coupler.

Replacement Overview

• Difficulty: 3/5 (Coupler Only) to 4/5 (Full Column)
• DIY Feasible: Yes, for experienced mechanics. Not recommended for beginners due to the safety-critical nature of the steering system and the need to handle the airbag.
• Key Steps: The process involves disconnecting the battery, removing the driver's airbag and steering wheel, removing the clockspring and trim panels, unbolting the intermediate shaft U-joint, disconnecting all electrical connectors, and unbolting the column assembly from the dash support.
• Special Tools: A steering wheel puller is often required.
• Calibration: After installation, a Steering Angle Sensor (SAS) calibration may be necessary to ensure the stability control system functions correctly. This is typically done with a professional scan tool.
🎬 Watch: How to calibrate the Steering Angle Sensor

Frequently Asked Questions (FAQ)