Engine Hyundai-Kia G6DB

The 3.3-liter gasoline V6 engine Hyundai G6DB was produced by the company from 2004 to 2011 and was installed on both front-wheel drive models such as the Santa Fe and the rear-wheel drive Sorento. There were two generations of such a power unit with quite significant differences.

In 2004, the 3.3-liter V6 unit of the Lambda I series debuted on the fifth generation of the Sonata. This is a typical V-engine with an aluminum block and a 60° cylinder angle, multipoint fuel injection, a pair of DOHC cylinder heads without hydraulic lifters, a timing chain and an aluminum intake manifold with two-stage VIS geometry change system. The first generation of the engine was equipped with CVVT phase shifters only on the intake camshafts.

In 2008, the second generation of V6 or Lambda II engines appeared on the restyled Sonata. These power units were distinguished by the presence of CVVT phase regulators already on all camshafts, as well as a plastic intake manifold with a three-stage geometry change system.

Lambda 3.3L family: G6DB, G6DF, G6DH, G6DM, G6DP.

The engine was installed on:

  • Hyundai Grandeur 4 (TG) in 2005 – 2011;
  • Hyundai Santa Fe 2 (CM) in 2005 – 2009;
  • Hyundai Sonata 5 (NF) in 2004 – 2010;
  • Kia Opirus 1 (GH) in 2006 – 2011;
  • Kia Sorento 1 (BL) in 2006 – 2009.


Production years 2004-2011
Displacement, cc 3342
Fuel system distributed injection
Power output, hp 233 – 259
Torque output, Nm 304 – 316
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 92
Piston stroke, mm 83.8
Compression ratio 10.4
Features DOHC, VIS
Hydraulic lifters no
Timing drive chain
Phase regulator CVVT
Turbocharging no
Recommended engine oil 5W-30, 5W-40
Engine oil capacity, liter 6.0 (there are versions with a 6.8 liter pallet)
Fuel type petrol
Euro standards EURO 3/4
Fuel consumption, L/100 km (for Hyundai Sonata 2007)
— city
— highway
— combined
Engine lifespan, km ~300 000
Weight, kg 212 (with attachments)

Disadvantages of the Hyundai G6DB engine

  • The most famous problem of the motors of this line is a progressive oil burner and the main reason for this is the rather rapid occurrence of oil scraper rings. Owners of cars with such an engine constantly do decarbonization, but this does not help for a long time.
  • In the specialized forums, many cases of jamming of these motors due to the cranking of the liners are described, and the culprit is usually the oil level that has sharply decreased as a result of the oil burner. But well-maintained engines also wedge, apparently the liners here are simply rather weak.
  • The timing chain here is not reliable and serves about 100-150 thousand kilometers, and the replacement is very expensive, and especially if you have to change it along with the phase regulators. On motors of the second generation, the chains have become more reliable, but the hydraulic tensioner fails.
  • Also, quite often there are lubricant leaks from under plastic valve covers, malfunctions of throttles, breakdown of the intake manifold geometry change system. And do not forget about adjusting the valve clearance, sometimes it is required every 60,000 km.

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