The first diesel engines with Common Rail fuel system were presented by the French manufacturer PSA in 1998. The auto concern in different years produced power units several modifications of engines, differing in technical characteristics and reliability indicators. One of the most popular for a long time was considered a two-liter HDI motor with indices DW10TD or RHY. A more powerful modification received a 16-valve cylinder head.
Initial versions of 2.0 HDI power units were developed by PSA without involvement of other firms. The DW10BTED4 modification is made in cooperation with Ford, respectively, it was installed on various models of cars of this brand. One and the same motor has several variants of markings, while the technical characteristics remain unchanged.
Technical characteristics
| Characteristic | Value |
|---|---|
| Exact volume | 1997 cm³ |
| Power system | Common Rail |
| Engine power | 135 – 140 hp |
| Torque | 320 – 340 Nm |
| Cylinder block | Cast iron R4 |
| Cylinder head | Aluminum 16v |
| Cylinder diameter | 85 mm |
| Piston stroke | 88 mm |
| Compression ratio | 17.6 – 18.0 |
| Drive features | Intercooler |
| Hydrocompensators | Yes |
| Transmission timing | Belt and chain |
| Fasoregulator | No |
| Turbocharger | VGT |
| What oil to use | 5.25 liter 5W-30 |
| Fuel type | Diesel |
| Environmental class | Euro 4/5 |
| Example service life | 375,000 km |
DW10BTED4 power units were first installed in French cars Peugeot 407 and Citroen C5. The use of 16-valve powertrains continued from 2004 to 2011. With a total volume of 1997 cubic centimeters, the motor had a cylinder diameter and piston stroke of 85 and 88 mm, respectively. The compression ratio was 18:1. At 4 thousand rpm, the engine developed 136 horsepower.
Where and under what designations the turbodiesel 2.0 DW10BTED4 (136 hp)
| Mark | Cars | Motor designations |
|---|---|---|
| Ford 2.0 TDCi | C-Max, Focus 2 | G6DA, G6DB, G6DD, G6DG |
| Fiat 2.0 D Multijet | Scudo | RHR, RHK |
| Citroën 2.0 HDI | C4, C4 Picasso, C5, C8, Jumpy | DW10BTED4 (RHR) |
| Peugeot 2.0 HDI | 307, 308, 407, 508, 607, 807, Expert | RHR, RHK |
| Lancia 2.0 D Multijet | Phedra | RHR, RHK |
| Volvo 2.0 D | C30, C70, S40, S80, V50, V70 | D4204T |
The powertrain design includes a combined timing drive. Torque is transmitted from the exhaust camshaft to the crankshaft pulley via a toothed belt drive. The rotation is then transferred to the intake camshaft by a short link chain.
The turbodiesel engine is equipped with a Garrett GT1749V compressor with variable geometry. The intercooler is responsible for air flow. The first engines were equipped with Siemens fuel system. The module with the index SID 803 has good indicators of reliability and wear resistance.
Since 2007, it was decided to change the fuel system to Delphi brand products. Both fuel systems were equipped with piezoelectric type injectors. The repairability of the elements left much to be desired. When replacing Delphi injectors, their “prescription” is necessarily performed. Information about injector parameters is entered into the electronic control unit of the engine.
Typical faults of the power unit DW10BTED4
Reliability, wear resistance of the French power unit with Common Rail fuel system do not cause any complaints. The long life of motors is their main advantage. With timely maintenance and refueling with quality fuel, such engines work without breakdowns for a long time. But DW10BTED4 motors also have some disadvantages.
Camshaft Chain Problems
On the engines of the first years of production, a small length chain was installed. In the process of intensive use, this element had the property of stretching. The owner of the vehicle in such cases could hear extraneous sounds in the work of the motor, for example, metal rustling. The sounds were especially clear when starting the power unit cold.
Chain slipping was practically not fixed, as most owners changed the chain in time. Such a defect was most often noted on HDI motors, released in the first years after development. Over time, the manufacturer made a refinement. The thickness of the outer plates of each chain link was increased from 1 mm to 1.5 mm. Stretching was no longer fixed.
Valve actuator defects
Some problems of the DW10BTED4 motor are associated with the failure of hydrocompensators. Also failures in operation appear with an increase in the backlash of the driving roller arms. In the 8-valve version of the motor, such nodes are absent. In 16-valve motors, hydrocompensators need to be changed if, after starting the engine, the knocking continues for several minutes.
Transmission timing problems
For two-liter DW10BTED4 motors, defects in the operation of the timing drive are recorded very rarely. The main problem is associated with the installation of a poor-quality belt, which tears before the expiration of the prescribed service life. Unlike many models of power units, the breakage of the belt does not lead to negative consequences for the motor itself.
In most cases, a major overhaul of the system is not even required. When the pistons hit the valves, the main load is taken by the rockers, their deformation and destruction occurs. These elements can be replaced at low cost. If the owner wants to make a major overhaul, at the same time the valve glands are changed, the engine is tested and started.
Defects in the operation of the fuel system
Regardless of the brand of the fuel system, the reliability of this node is not in doubt. Siemens SID 803 or Delphi equipment on DW10BTED4 motors work without failures for a long time. The main problems are fixed due to the use of low-quality diesel fuel. In such cases, the resource of injectors and pump is significantly reduced. In some cases, the pressure regulator breaks down.
Faults at the level of wiring
Inability to start the DW10BTED4 motor is a rare reason for contacting the service center. In such situations, an experienced technician always checks the wiring. The wiring harness in the engine compartment can be damaged by vibrations. Cables become frayed and stop performing their functions. In some cases, the problem is related to the fuse box. As a result, the engine does not receive power and control signals, the car does not start.
Failures and defects in the operation of the turbine
On DW10BTED4 motors, a Garrett GT1749V turbocharger is installed. Problems with this node practically do not occur. The main failures in operation are associated with defects in the electro-vacuum system. In such situations, the operation of the geometry is violated. Other reasons for contacting the service are electronic valve failures and mechanical damage to vacuum tubes.
Another standard cause of malfunctions in the motor is the clogging of the EGR valve. Options for eliminating the problem are also standard. First of all, it is necessary to try to clean the channels from soot and carbon deposits. If the result is negative, the EGR valve is simply silenced. Otherwise, the DW10BTED4 motor shows excellent performance in all parameters.