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Kia GT 3.3 T-GDi AWD

G6DP 3.3L V6 T-GDi (Lambda II) 366 hp Automatic All-wheel drive Sedan 2017–2023
– Be Careful
Engine G6DP – Be Careful 1,500–6,050 €

Twin-turbo V6 with effortless torque from 1,300 rpm and a rich V6 sound. 3.3 litres of displacement deliver relaxed pull without turbo lag. Stick strictly to oil change intervals and keep an eye on both turbochargers — expensive to repair.

Fun Factor? Legendary!

V6 twin-turbo — Kia's grand coup

366 hp V6 twin-turbo with rear-biased all-wheel drive, tuned for driving dynamics by Albert Biermann (ex-BMW M). In Sport Plus mode up to 93% rear axle torque, gentle power slides possible, powerful V6 soundtrack — genuine gran turismo at Korean prices.

Engine Weaknesses 3

!! Recall: turbo oil line leaks due to heat damage

The left-side turbo oil supply line can degrade from radiant heat off the exhaust manifold, causing oil loss. Kia recalled 69,907 Stinger/K9 vehicles (Germany: 2,912, model years 2016–2023, Kia action 241039).

Symptoms: Engine oil warning light, oil spots under the vehicle, white smoke from the engine bay, burning smell

!! Carbon deposits on intake valves (GDi V6)

The G6DP 3.3 Twin-Turbo uses pure direct injection like all Lambda GDi engines. Carbon deposits on intake valves are visible as an oil film within a few thousand kilometres and increase with mileage.

Symptoms: Power loss and hesitation at part throttle, occasional rough idle, increased fuel consumption

600–1,500 € from 60,000 km
!! Elevated oil consumption from break-in onwards

According to owner reports, the G6DP 3.3 V6 TT consumes above-average oil under spirited driving. As a GDi engine without port injection, increased blow-by accumulates deposits that further raise consumption.

Symptoms: Oil level drops noticeably between changes, especially after spirited driving or long motorway runs

300–1,200 € from 80,000 km

Vehicle Weaknesses 6

!! Other Recall: wiring harness short circuit — fire risk

Damage to the wiring harness in the engine bay can cause contact with components and vehicle fire. The ABS/ESP unit can also cause a short circuit. Affected: vehicles up to model year 2018.

0–0 €
!! Brakes Brake discs judder prematurely

Brake discs can start to judder after just a few thousand kilometres, especially if the bedding-in period was not observed correctly. On the powerful 3.3 T-GDI with Brembo brakes, the phenomenon occurs more frequently.

400–1,200 € from 30,000 km
! Body Headlamps fog up inside

Headlamps on the Stinger CK tend to develop condensation inside, especially after rain or cleaning. Fogged-up headlamps can impair light output and MOT pass.

100–800 €
! Steering Steering squeals in cold weather

On the Kia Stinger CK, multiple owners report squealing steering noises in cold weather that sound like rubber-on-rubber friction. The noise usually disappears once the vehicle warms up.

100–500 € from 50,000 km
! Electronics Infotainment failures and reversing camera

On the Kia Stinger CK, occasional infotainment system failures occur, including a blue screen on the reversing camera and Apple CarPlay dropouts. Software updates usually resolve the issue temporarily.

0–800 € from 40,000 km
i Body Tailgate rattles

A rattling tailgate is a known comfort issue on the Stinger CK. The tailgate rubber buffers can be adjusted to eliminate the noise.

0–50 €

Reports & Tests

nhtsa_complaints NHTSA Complaint Summary 2026-03
Below Average

151 owner complaints filed with NHTSA (2017–2023). Most reported: Engine (41), Electrical (29), Brakes (29).