The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2018 Q50 Front Suspension Clunking Noise Over Bumps

0

Diana O. · rep 0 · May 22, 5:06 AM · 1 replies · solved · Question

Vehicle: 2018 Infiniti Q50 Red Sport 400

Hey everyone,

I've got a 2018 Infiniti Q50 Red Sport 400 with about 65,000 miles on it, and I've started noticing a really annoying clunking noise coming from the front end. It's most noticeable when I go over speed bumps, potholes, or any uneven road surfaces at low speeds.

It sounds like it's coming from both sides, but maybe a bit more pronounced on the passenger side. I've checked for anything obvious like loose items in the trunk or under the hood, but no luck. The steering feels okay, and braking seems normal, but the noise is definitely concerning.

Has anyone else experienced this with their Q50, especially the 2018 model year? What could be causing this? I'm hoping it's something relatively simple to fix. Any advice on what to check or what parts might be failing would be greatly appreciated before I take it to a mechanic.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:06 AM

0

ClearTheCode admin answer:

A clunking noise from the front suspension, especially over bumps, is a common complaint and usually indicates wear in various suspension components. It's important to address this promptly to maintain ride quality, handling, and safety.

Here are the most common causes and diagnostic steps:

  1. Sway Bar End Links: These are a very frequent culprit. The bushings or ball joints in the end links can wear out, causing a clunking sound as the sway bar moves. You can often check these by trying to wiggle the link by hand when the car is on a lift or jack stands.
  2. Control Arm Bushings: The lower or upper control arm bushings can degrade over time, leading to metal-on-metal contact or excessive play. This is particularly common on vehicles with higher mileage.
  3. Strut Mounts/Bearings: The top strut mounts or the bearing plates can wear out, causing a clunking or popping sound, especially when turning or going over bumps.
  4. Ball Joints: Worn lower or upper ball joints can also produce a clunking noise. This is a critical safety component, so inspect these carefully for play.
  5. Loose Components: Less common, but sometimes a loose caliper bolt, shock absorber bolt, or even a loose subframe bolt can cause similar noises.

When to See a Shop: If you're not comfortable inspecting these components yourself, or if you've done a visual check and can't pinpoint the source, it's best to take your 2018 Infiniti Q50 to a qualified mechanic. A professional can put the car on a lift, use pry bars to check for play in various components, and accurately diagnose the issue. Ignoring suspension noises can lead to accelerated wear on other parts, compromised handling, and potentially unsafe driving conditions. Early diagnosis can often prevent more expensive repairs down the line.

Menu

Help & account