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2017 Golf R DSG Jerking and Hesitation - P0700 Code

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Rachel A. · rep 0 · May 22, 4:32 AM · 1 replies · solved · Question

Vehicle: 2017 Volkswagen Golf R

Hey everyone,

I've got a 2017 Volkswagen Golf R with the DSG transmission, and lately, it's been acting really strange. When I'm accelerating from a stop or at low speeds, the car often jerks pretty hard, almost like it's struggling to engage the gear smoothly. Sometimes there's a noticeable hesitation before it finally catches.

I hooked up my OBD-II scanner, and it's throwing a P0700 code, which points to a transmission control system malfunction. I'm worried this might be a serious DSG issue. Has anyone else experienced this with their Golf R or other VW DSG models around this year? What was the fix?

Any advice on what I should check first would be greatly appreciated. I'm hoping it's not a full transmission replacement!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 4:32 AM

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ClearTheCode admin answer:

The P0700 code indicates a general transmission control system malfunction, meaning the Transmission Control Module (TCM) has detected a fault within the transmission and has stored a more specific code in its memory. While P0700 itself doesn't pinpoint the exact issue, it's a crucial indicator that further diagnosis is needed.

Here's what could be causing the jerking and hesitation in your 2017 Golf R's DSG:

  1. Mechatronic Unit Failure: This is a common culprit for DSG issues. The mechatronic unit is the brain of the DSG, combining the TCM with hydraulic actuators. Internal failures, such as pressure sensor issues or solenoid malfunctions, can lead to erratic shifting, jerking, and hesitation. This often requires replacement of the mechatronic unit.
  2. Clutch Pack Wear: Over time, the wet clutch packs in the DSG can wear down, leading to slippage, harsh engagement, and hesitation. While less common on a 2017 model unless it has very high mileage or has been driven aggressively, it's a possibility.
  3. Low or Contaminated DSG Fluid: Incorrect fluid levels or old, contaminated fluid can severely impact DSG performance. The fluid is vital for lubrication, cooling, and hydraulic operation of the mechatronic unit and clutches. A DSG fluid and filter service is recommended every 40,000 miles.
  4. Wiring or Sensor Issues: Less likely but possible, a faulty speed sensor, temperature sensor, or damaged wiring harness connected to the transmission could send incorrect signals to the TCM, causing performance issues.

When to see a shop: Given the P0700 code and the symptoms, it's highly recommended to take your Golf R to a qualified Volkswagen specialist or dealership as soon as possible. A standard OBD-II scanner will only read generic codes; a professional diagnostic tool (like VCDS or ODIS) is needed to access the specific fault codes stored in the DSG's TCM. This will provide a much clearer picture of the underlying problem. Continuing to drive with these symptoms could potentially lead to further damage to the transmission.

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