Hi Dannenorin,
Thanks for the video I can hear the whining and the jerking. Based on your description and mileage (118k km), here’s a technical breakdown:
1. Whining noise rising with revs:
Usually gear whine from the transmission or differential.
Turbo or accessory belt noises are less likely with these symptoms.
2. Jerking under partial throttle (~50% load):
Could be clutch slipping (manual) or torque converter/transmission issue (automatic).
Also possible but less likely: fuel or boost fluctuation.
3. Combined symptoms:
Whine + jerking together suggests gearbox wear or failing clutch.
If manual: DMF (dual mass flywheel) issues can also cause this: whine under load, slippage, and jerking.
4. Checks to do:
Inspect gearbox for oil leaks.
Manual: depress clutch fully and rev — if noise reduces → clutch/DMF.
Automatic: note jerking in certain gears.
Listen carefully to localize with stethoscope or long screwdriver.
Summary, Top suspects:
Manual gearbox wear/gear whine
Clutch slipping or DMF problem (manual)
Turbo and engine accessories are less likely.
Next step suggestion:
Try a quick clutch test (manual) or gear engagement test (auto) at low speed in a safe area — note whether the whining changes when the clutch is pressed or certain gears are used. That will help pinpoint whether it’s clutch/DMF or gearbox before taking it to a workshop.
