The Hyundai 2.2 CRDi (D4HB) has been around since 2009 and can be found under the hoods of some popular SUVs like Santa Fe from Kia Motors Corporation; Palisade for Hyundai; Kia Sorento – both front-wheel drive and four-wheel drive models – produced by Hyundai Motor Company Asia Co., Ltd.
What are Hyundai Kia 2.2 CRDi Engines?
The Hyundai Kia 2.2 CRDi engine is a member of the Hyundai R engine. R engines are four-cylinder engines produced by Hyundai. The development of the CRDi engine was announced in the Advanced Diesel Engine Technology Symposium in late 2008 and began production in 2009.
The R family of Hyundai engines feature a Graphite Iron block and an aluminum cylinder head, with chain-driven dual overhead camshafts operating the cylinders. The fuel is delivered to the unit through the Bosch third-generation common rail direct injection or CRD-i through piezo-electronic injectors operating at 26,000 psi.
The air is fed via an electronically operated variable geometry turbocharger and an advanced ECU.
The R engine is a lightweight, compact ride that features low-noise components to reduce vibration and booming sound. These include stiffened ladder frame housing for increased rigidity and plastic head coverings on the intake manifold or engine parts like oil filter casing.
The special balancer shaft connects with an isolation pulley belt from the motor, which helps save weight and provides smoother operation due to reduced friction between rotating parts of different material compositions compared with steel counterparts.
The Kia 2.2 CRDi is a EURO 5 emission compliant. The engine achieved this due to the close-coupled Diesel Particulate Filter added with a highly-efficient exhaust gas recirculation with a by-pass valve.
Engine Specifications and Design:
- Production Run: 2009 – Present
- Cylinder Head Material: Aluminum
- Cylinder Block Material: Compacted Graphite Iron
- Configuration: Inline-4
- Bore: 85.4 mm
- Stroke: 96.0 mm
- Valvetrain: DOHC with four valves per cylinder
- Displacement: 2.2 L (2199 cc)
- Compression Ratio: 16.0
- Weight: 300 lbs.
- Maximum HP: 197 HP at 3,800 RPM
- Maximum Torque: 325 lb-ft at 1,800 – 3,500 RPM
Let’s take a look inside the engine!
The D4HB engine has a compacted graphite iron cylinder block. The material makes it lighter than cast iron. It provides greater strength for heavy-loaded diesel engines, which is important because this type of drivetrain requires more durability from its components to handle vibrations from being pulled or towed behind your vehicle at high speeds without issue.
Furthermore, the compacted graphite iron cylinder block offers durability, which is important for heavy-loaded diesel engines like the 2.2 CRDi on your vehicle; it also helps reduce vibration and increase powertrain efficiency by up to 15%.
The race toward compact, fuel-efficient, and powerful diesel engines has continued for a long time. The new DOHC 16-valve head features a lightweight design with dual camshafts driven by chains to reduce vibration at higher RPMs.
Moreover, hydraulic follower cam adjustments are no longer needed due to its piezo injector technology. This technology provides immediate response, unlike before, where valves had clearance issues due to poor engineering practices.
The latest advancement in this field comes from Bosch’s 3rd generation CRDi system called “Bosch ME7”. The Hyundai Kia 2.2 CRDI engine enables itself to compete directly against its peers while still maintaining emissions standards set by the law.
High-Pressure Pump and Turbocharger
The electronically controlled fuel system operates under very high pressure (up to 1800 bar). To squeeze out the maximum power and minimize the turbo lag effect, Audi installed an e-VGT with variable geometry to precisely manage the flow rate for each driving situation.
One of Hyundai Kia 2.2 CRD-i’s most important features is using waste heat from your engine bay as well, which helps cool down intake air materials during startup or operation without having you wait around idly while doing so.
Materials Used and Regulations for Hyundai 2.2 CD-i
To meet increasingly stringent emissions rules (Euro 5 and following) in addition to an exhaust gas recirculation system, engineers had a few tasks on their hands: weight loss; plastic material for components manufacturers such as cylinder head coverings.
By using these materials, they could make better use of space while still meeting all new regulations with ease.
The engineers at Hyundai used plastics to slim down and meet emission standards. There is a plastic cylinder head cover, oil filter housing, intake manifold for less weight without sacrificing durability – this also helps lower fuel consumption.
More stringent Euro 5+ regulations required the engine to install DPFs and exhaust gas recirculation systems (EGR).
The power rating of the Hyundai Kia 2.2 CRD-i engine is 197 HP and a 325 lb-ft of torque between 1,750 and 2,750 RPM.
Applications of Hyundai Kia 2.2 CRD-i engine:
- 2011 – 2019 Hyundai Grandeur
- 2018 – Present Hyundai Palisade
- 2009 – 2020 Hyundai Santa Fe
- 2021 – Present Hyundai Staria
- 2010 – 2020 Kia Carnival
- 2009 – 2020 Kia Sorento
Hyundai 2.2 FR (D4HC)
Another Hyundai Kia 2.2 L variant is the 2.2 FR. This engine is used for rear-wheel-drive applications. The D4HC engine has a power rating of 199 HP and 325 lb-ft of torque between 1,750 and 2,750 RPM.
Applications of Hyundai 2.2 FR Engine:
- 2017 – Present Genesis G70
- 2016 – 2020 Genesis G80
- 2017 – 2020 Kia Stinger
Problems Surrounding Hyundai 2.2 CRD-i Engine:
No matter how excellent the engine design is, there would still be issues and problems. It is indeed inevitable due to the course of different timelines. Age, mileage, and maintenance habits can contribute to the engine’s overall condition in the long run.
Hyundai 2.2 CRD-i engines are not exempted from the effects of such factors.
1. Engine Noise
The D4HB engine has a lot of noise. The main sources are the valvetrain and the timing chain. Still, sometimes bad oil can clog the hydraulic tensioner circuit, making for more intense operation sounds while driving on public roads or highways with other cars passing by in traffic jams.
This is not something you want to experience at a rush time when everyone else has turned their music up loud out of frustration because they’re stuck behind a slower vehicle.
2. Piezo-Electronic Injectors
Despite being a small car, the 2.2 CDRi has been known to consume oil and cause problems with fuel injection systems, which may lead to unstable engine operation over time as it ages due to its size constraints.
Fortunately, filling up at high-quality stations along your routes can help avoid any issues on more expensive parts replacement or future repairs needed later down the line.
Replacing these can be quite expensive and require specialized service to avoid problems with a modern fuel system, so simply fill up in proven places for best results.
Hyundai has been producing cars since the 1950s, and their engines are known for being reliable. The 2.2 CRDi engine is a perfect example of this quality – it’s built to last even decades after its production date.
Although many carmakers have changed how they design their vehicles over time, Hyundai continues to use the 2.2 CRDi engine in some models because it still provides an excellent driving experience.
The Hyundai 2.2 CRDi engine is a robust, durable engine that can easily take on heavy loads.
This engine was made more than ten years ago, and it still has the power to haul large items in modern cars like the Santa Fe or Tucson SUV models without any problems.
If you need an affordable and reliable car with good gas mileage for your family, then this might be just what you’re looking for.