The 1.6 CRDI engine belongs to the family of small-capacity Korean diesel engines with twin-cam cylinder heads and 4 valves per cylinder. There are 5 engines in the family from 3-cylinder 1.1-liter to 1.7-liter.
In this article we will talk about the reliability of the engine 1.6 CRDI, consider reviews about its problems and resource and tell you where to buy a contract diesel engine Kia and Hyundai 1.6 CRDI.
The 1.6-liter engine is very widely used in cars Kia and Hyundai, created for the European market and the CIS. Assembly of this engine was established at the plant in Slovakia since December 2006. Power of the engine 1.6 CRDi depending on the version and year of manufacture is 90, 110, 115, 128 and 136 hp.
This engine in the best traditions of the European (not Korean) car industry has received the Common Rail fuel system from Bosch with CP1 H3 fuel injector, intake manifold with vortex flaps and GT1544V turbine with variable geometry. Two chains are used in the timing drive.
Hyundai D4FB 1.6 CRDi engine specifications
Modifications of the first generation U1 family.
| Characteristics | Parameter |
|---|---|
| Type | Ready |
| Number of cylinders | 4 |
| Number of valves | 16 |
| Definite displacement | 1582 cm³ |
| Cylinder diameter | 77.2 mm |
| Piston stroke | 84.5 mm |
| Power system | Common Rail |
| Power | 90 – 116 hp |
| Torque | 235 – 255 Nm |
| Compression ratio | 17.3 |
| Fuel type | Diesel |
| Environmental standards | Euro 4 |
Modifications of the second generation of the U2 family
| Characteristics | Parameter |
|---|---|
| Type | Ready |
| Number of cylinders | 4 |
| Number of valves | 16 |
| Definite displacement | 1582 cm³ |
| Cylinder diameter | 77.2 mm |
| Piston stroke | 84.5 mm |
| Power system | Common Rail |
| Power | 90 – 136 hp |
| Torque | 235 – 300 Nm |
| Compression ratio | 17.0 |
| Fuel type | Diesel |
| Environmental standards | Euro 5/6 |
Hyundai D4FB 1.6 CRDi engine service regulations
| Procedure | Parameter |
|---|---|
| Oil service | Every 15,000 km |
| Lubricant volume in the engine | 5.7 liters |
| Needed for replacement | About 5.3 liters |
| Recommended oil | 0W-30, 5W-30 |
| Transmission timing type | Chain |
| Declared life | Not limited |
| In practice | 120,000 km |
| Chain breakage/slip | Valve bending |
| Adjustment of thermal clearances | Not required |
| Principle of adjustment | Hydrocompensators |
| Oil filter replacement | 15 thousand km |
| Air filter replacement | 15 thousand km |
| Fuel filter replacement | 30 thousand km |
| Replacing the glow plugs | 120 thousand km |
| Auxiliary belt replacement | 120 thousand km |
| Coolant replacement | 5 years or 90 thousand km |
Which vehicles were equipped with Hyundai-Kia D4FB engine
| Model | Years of manufacture |
|---|---|
| Hyundai i20 1 (PB) | 2008 – 2010 |
| Hyundai ix20 1 (JC) | 2010 – 2018 |
| Hyundai i30 1 (FD) | 2008 – 2012 |
| Hyundai i30 2 (GD) | 2011 – 2017 |
| Hyundai i30 3 (PD) | 2016 – 2018 |
| Hyundai Accent 4 (RB) | 2010 – 2017 |
| Hyundai Elantra 4 (HD) | 2006 – 2011 |
| Hyundai Elantra 6 (AD) | 2015 – 2020 |
| Kia Ceed 1 (ED) | 2006 – 2013 |
| Kia Ceed 2 (JD) | 2012 – 2018 |
| Kia Cerato 1 (LD) | 2005 – 2008 |
| Kia Cerato 2 (TD) | 2008 – 2013 |
| Kia Cerato 3 (YD) | 2013 – 2018 |
| Kia Carens 3 (UN) | 2010 – 2013 |
| Kia Soul 1 (AM) | 2008 – 2014 |
| Kia Soul 2 (PS) | 2014 – 2019 |
| Kia Stonic 1 (YB) | 2017 – 2018 |
| Kia Venga 1 (YN) | 2010 – 2019 |
Problems and reliability of the engine 1.6 CRDI (D4FB)
Korean turbodiesel CRDI turned out to be very successful: powerful, economical and unpretentious. It has a few sore spots, which you should know about and prepare for.
Engine turbine
Turbines on the engine 1.6 CRDI especially in the first few years of production “flew” through one. Turbines failed at a ridiculous mileage of 30,000 km and rarely lived to 100,000 km. Many owners were lucky – turbines were replaced under warranty.
Before dying turbine engine 1.6 CRDI often whistles. And it can whistle and 5 – 10 thousand km, and can suddenly fail after one trip.
Owners of Korean cars with this diesel engine put turbo timers, did not stop the engines for 2-3 minutes after stopping, but this measure did not help much. The manufacturer has solved the problem with turbines after 2009.
There is information that the manufacturer changed the ECU firmware, after which the turbines on this motor began to work in a more gentle mode.
Defective or unworn turbine begins to chase oil into the intake or exhaust very strongly. Its appetite can be up to 400 grams of oil per 1000 km – in this case, you can drive up to the draining of oil reserves with all the associated problems.
And if the turbine chases oil into the intake, you can face a hydrostroke. Fortunately, on the 1.6 CRDI engine the intercooler stands vertically and oil collects in it like in a bucket for quite a long time.
Supercharger sensor wiring
Suddenly, a car with a 1.6 CRDI engine (D4FB) can stop driving – as if the turbine has stopped “blowing”. But the reason for the loss of thrust can also be a break in the wiring harness to the boost sensor. The wiring harness is quite tight and one or more wires break due to vibrations.
Fuel System
Bosch’s Common Rail fuel system is repairable well and relatively inexpensive. The cost of new injectors is not off the charts, and used ones are even cheaper.
The pressure regulator installed on the fuel ramp usually causes trouble on this engine. Its purpose is to bleed excess fuel from the ramp. If the regulator fails, it blows too much fuel out of the ramp, and as a result, the 1.6 CRDI (D4FB) engine starts very badly.
The regulator malfunction can be checked when the return hose is removed from the pump: if at the moment of starting the engine fuel will come out of it, then clearly the regulator is defective and is draining the fuel that the engine needs to start.
Also if the engine 1.6 CRDI (D4FB) starts uncertainly, you need to check the low-pressure fuel pump – swap pump – it can also fail, wear out, although this happens rarely. The 1.6 CRDI fuel pump usually lasts a long time and without problems.
The return tubes on the injectors can crack and leak. Also sometimes on the engine 1.6 CRDI (D4FB) leak fittings, because the tiny gaskets lose their tightness.
The injectors are quite survivable, but when replacing them, you need to prescribe their individual codes, which are generated on test benches. If this is not done, then even good new or used injectors will knock strongly, the motor will run disgustingly.
Ignition spark plugs
Another cause of poor starting of the engine 1.6 CRDI (D4FB) – failed glow plugs. A sign of one or more glow plugs failure is light smoke from the exhaust system immediately after a cold start.
G timing chains
There are two chains in the timing chain drive. And they tend to stretch, especially the upper one. Stretching occurs at a mileage of 120 000 – 150 000 km. Stretching can be “heard” by a characteristic buzzing sound and should not be neglected – the chain can jump or “chip” at contact with the plastic casing. A set of timing chains with calipers comes to 300 dollars. The set is the same for motors 1.1, 1.5, 1.6.