MajorCommonTransmission

Hyundai i20: D7GF1 DCT Clutch Pack Judder on Hill Starts

D7GF1 DCT Clutch Pack Judder on Hill Starts is a common transmission fault on the Hyundai i20 on the 2020 onward cars, and we rate it major. Putting it right costs $2,800 to $6,500 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 9 documented faults on the Hyundai i20.

Vehicle: Hyundai i20
Only on: Hyundai N
Years: 2020 onward
Fuel: petrol
Gearbox: dct
System: Transmission

This page covers the Hyundai i20 as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Hyundai i20 faults9 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the Clutch yet. We would rather show none than show a picture of a different part.

What goes wrong

The dual-clutch transmission in the i20 N GP exhibits clutch pack judder specifically during hill-start manoeuvres from cold, where the driver holds the vehicle against a gradient before release. The dry clutch design has a narrow thermal slip window; when the clutch modulates torque to prevent rollback on an incline, stick-slip oscillation develops in the clutch pack and transmits as a pronounced shudder through the driveline and cabin. The fault is most noticeable in the first 5-15 minutes of cold-weather operation. Hyundai has released TCU calibration updates to refine clutch slip modulation during hill-hold, and persistent cases require dual-clutch module replacement under the powertrain warranty.

What you would notice

Vibration or shuddering through the driveline when pulling away uphill from cold
Judder transmitted through the gear lever, seats, and steering wheel during hill engagement
Harsh or inconsistent clutch bite point on inclines when cold
TCU fault codes related to clutch slip or modulation stored in the module
Momentary rollback before the clutch catches during uphill departure

How to check it

Where to look. Dual-clutch transmission — Clutch 1 dry clutch pack, hill-hold torque modulation zone

Conduct a cold-start hill-start test on a gradient of at least 8 degrees — note any shudder or vibration. If a workshop inspection is possible: Connect an OBD scan tool and check for TCU fault codes referencing clutch slip. Confirm via Hyundai dealer scan tool that the TCU software is at the latest released calibration version for the vehicle's build date and variant.

Parts involved: Clutch.

What it costs to put right

$2,800 to $6,500 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

“Has the TCU software been updated by a Hyundai dealer for the DCT calibration?”
“Does the car shudder or judder when pulling away uphill when cold?”
“Has the dual-clutch assembly been replaced or inspected under warranty?”
“Has the car been used frequently in hilly terrain?”

Now check the Hyundai i20 you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Hyundai i20 buyer questions

Is d7gf1 dct clutch pack judder on hill starts serious on a Hyundai i20?

We rate it major and common on the Hyundai i20. The dual-clutch transmission in the i20 N GP exhibits clutch pack judder specifically during hill-start manoeuvres from cold, where the driver holds the vehicle against a gradient before release. The dry clutch design has a narrow thermal slip window; when the clutch modulates torque to prevent rollback on an incline, stick-slip oscillation develops in the clutch pack and transmits as a pronounced shudder through the driveline and cabin. The fault is most noticeable in the first 5-15 minutes of cold-weather operation. Hyundai has released TCU calibration updates to refine clutch slip modulation during hill-hold, and persistent cases require dual-clutch module replacement under the powertrain warranty.

How much does it cost to fix on a Hyundai i20?

$2,800 to $6,500 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Hyundai i20 years are affected?

Our research records this fault on the 2020 onward Hyundai i20. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.