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2017 C300 Transmission Jerking and Hesitation - Anyone Else?

0

Ryan M. · rep 0 · May 22, 4:21 AM · 1 replies · solved · Question

My 2017 C300 (W205) with about 60k miles has started acting up. When accelerating from a stop, especially in traffic, it sometimes jerks quite noticeably. It also feels like it hesitates before shifting into the next gear, almost like it's confused.

This happens most often in lower gears, like 1st to 2nd or 2nd to 3rd. It's not constant, but frequent enough to be concerning. I'm worried about potential transmission issues, especially since these 9G-Tronic units can be complex.

Has anyone experienced similar symptoms with their C300 or other Mercedes models with the 9G-Tronic transmission? What was the diagnosis and fix? I'm trying to gather some information before taking it to the dealership.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 4:21 AM

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ClearTheCode guidance (Mercedes-Benz · Buying & ownership)

Summary: For 2017 C300 Transmission Jerking and Hesitation - Anyone Else?, work through these steps on your 2016+ vehicle:

  1. Confirm the symptom — note when it happens (cold start, highway, after fuel fill, etc.).
  2. Scan codes — save all pending/stored DTCs; don't clear until you've recorded them.
  3. Check TSBs & recalls — look up your VIN for open campaigns and known fixes.
  4. Inspect the obvious — related fuses, connectors, fluid level, and recent repairs.
  5. Test the common fix — follow model-specific service procedures; one change at a time.
  6. Escalate if needed — burning smell, no brakes, overheating, or stalling in traffic → shop visit.

Owner reported: My 2017 C300 (W205) with about 60k miles has started acting up. When accelerating from a stop, especially in traffic, it sometimes jerks quite noticeably. It also feels like it hesitates before shifting into the next gear, almost like it's confused.

This happens most often in lower gears, like 1st to 2nd or 2nd to 3rd. It's not constant, but frequent enough to be concerning. I'm worried about pot…

This is educational guidance, not a substitute for hands-on diagnosis.

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