The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2018 Macan S - Shuddering/Jerking at Low Speeds, especially when turning

0

Brian F. · rep 0 · May 22, 6:50 AM · 1 replies · solved · Question

Vehicle: 2018 Porsche Macan S

Hey everyone,

I've got a 2018 Porsche Macan S with about 60,000 miles on it, and I've started noticing a really unsettling shudder or jerking sensation, especially at low speeds or when I'm turning. It feels like the car is struggling or binding up, almost like a tire is slipping, but it's definitely coming from the drivetrain.

It's most noticeable when I'm pulling out of a parking spot, making a tight turn, or just creeping along in traffic. Sometimes it feels like a slight hesitation, other times it's a more pronounced jerk. I'm worried this could be a serious issue.

Is this a known problem with the 2018 Macan S? What could be causing this, and what's the typical fix? I'm hoping it's not something major, but I want to be prepared. Any advice on what to tell the dealership or what to look out for would be greatly appreciated. Thanks!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 6:50 AM

0

ClearTheCode admin answer:

The symptoms you're describing in your 2018 Porsche Macan S are highly indicative of a common issue with the transfer case. This problem affects many Macan and Cayenne models, particularly those with higher mileage.

Here's a breakdown of the issue:

  1. Causes:

    • Fluid Degradation: Over time, the transfer case fluid can break down, losing its lubricating and friction-modifying properties. This leads to increased friction and binding within the transfer case clutch packs.
    • Internal Wear: The clutch packs and other internal components of the transfer case can wear out, causing them to slip or bind, especially under load or during turns.
    • Software Glitches: Less commonly, outdated transfer case control unit software can contribute to the issue, though this is usually addressed with a fluid change or replacement.

  2. When to See a Shop:

    • You should schedule an appointment with a Porsche specialist or dealership as soon as possible. While the car is likely still drivable, continued operation with a failing transfer case can lead to further damage to other drivetrain components.
    • Even if there's no "Check Engine Light" or specific OBD-II code related to the transfer case, the mechanical symptoms are clear enough for diagnosis. A technician will typically perform a road test to confirm the shudder and then inspect the transfer case.

  3. Typical Solutions:

    • Transfer Case Fluid Flush/Replacement: In some early stages, a complete flush and refill with fresh, genuine Porsche transfer case fluid can alleviate the symptoms. This is often the first, less expensive step.
    • Transfer Case Replacement: If the fluid change doesn't resolve the issue, or if the internal wear is significant, the entire transfer case often needs to be replaced. Porsche has revised transfer case designs over the years to address this known weakness.
    • Warranty/TSBs: Check if your vehicle is still under an extended warranty or if there are any active Technical Service Bulletins (TSBs) or recalls related to the transfer case for your specific model year. Porsche has issued TSBs regarding transfer case issues, which might offer some relief on repair costs.

Addressing this promptly will help maintain your Macan S's performance and prevent more extensive repairs down the line.

Menu

Help & account