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Rough Shifting and Hesitation on my 2018 Outlander Sport CVT

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Mark S. · rep 0 · May 22, 5:35 AM · 1 replies · solved · Question

Vehicle: 2018 Mitsubishi Outlander Sport ES

Hey everyone,

I've been noticing some weird behavior with my 2018 Mitsubishi Outlander Sport, 2.0L ES trim. Lately, the CVT feels like it's hesitating quite a bit, especially when accelerating from a stop or at lower speeds. It's not a violent jerk, but more like a noticeable lag before it catches on.

I'm at about 75,000 miles now and I'm wondering if it's time for a CVT fluid change. I've heard these transmissions are sensitive to fluid condition. Has anyone else experienced this with their Outlander Sport? What was your fix? I'm trying to avoid a costly dealership visit if it's something I can tackle myself or at least diagnose.

Thanks for any advice!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:35 AM

0

ClearTheCode admin answer:

It sounds like your 2018 Mitsubishi Outlander Sport's CVT might be experiencing symptoms related to aging or low transmission fluid, which is common around your mileage. Here’s a breakdown of what you should consider:

  1. Check CVT Fluid Level and Condition: This is the first step. The CVT fluid should be checked with the engine warm and running, typically after driving for a bit. Consult your owner's manual for the exact procedure, as some CVTs have specific checking methods. The fluid should be reddish and translucent. If it's dark brown, black, or smells burnt, it's definitely time for a change.
  2. Perform a CVT Fluid Drain and Fill: For Mitsubishi CVTs, a simple drain and fill (not a flush) is generally recommended. Flushes can sometimes dislodge debris and cause more issues. You'll need specific Mitsubishi CVT fluid (e.g., DiaQueen CVT Fluid J4 or equivalent). This is a DIY-friendly task for those comfortable with basic car maintenance, involving draining the old fluid from the pan and refilling through the dipstick tube or fill port.
  3. Inspect for Leaks: While checking the fluid, look for any signs of leaks around the transmission pan or lines. Low fluid levels can also cause hesitation and rough operation.
  4. Reset CVT Adaptive Learning (Optional): After a fluid change, some technicians recommend resetting the CVT's adaptive learning values using a diagnostic tool. This helps the transmission 're-learn' optimal shift points with the new fluid. This usually requires a professional scan tool.

Common Causes:

  • Degraded CVT Fluid: Over time, the fluid loses its lubricating and cooling properties, leading to increased friction and wear within the transmission, causing hesitation and rough operation.
  • Low Fluid Level: Insufficient fluid can lead to poor hydraulic pressure, affecting the transmission's ability to engage properly.

When to See a Shop:

  • If the fluid change doesn't resolve the issue, or if the problem worsens.
  • If you notice any warning lights on your dashboard (e.g., 'Service Engine Soon' or transmission warning light).
  • If you're uncomfortable performing the fluid change yourself, as using the wrong fluid or improper procedure can cause significant damage.
  • If you hear any grinding, whining, or clunking noises from the transmission, which could indicate internal mechanical failure.
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