2.2 HDi Engine DW12 Specs, Fuel, Problems, Reliability

The 2.2 HDi diesel engine with the DW12 index is a modification of the DW10 engine with a volume of 2 liters. To achieve more power and volume up to 2.2 liters, an increase in the piston stroke, as well as the introduction of a cylinder head with 16 valves, allowed.

The structure of the engine included a manifold of variable length, a modern turbine at the time of production, and balancing shafts. The designers managed to achieve an increase in engine recoil and higher environmental performance.

The first 2.2 HDi DW12 engine was manufactured in 2000. A 2.2-liter engine with a capacity of 136 horsepower was installed on French-made cars, Peugeot 406, Citroen C5.

Modifications of engines with a capacity of 101 horsepower were also produced. Commercial vehicles of the same manufacturers were equipped with such engines.

The first version of the engine was replaced by a biturbo engine with the same volume. The engine developed a power of 170 horsepower, was equipped with two turbines, and became the first French-made diesel four.

In the future, the concern produced similar engines with a capacity of 150 to 204 horsepower. The installation of such engines was relevant for French manufacturers, as well as for such brands of cars as Ford, Mitsubishi, Land Rover.

Read Also: G4LH SmartStream G 1.5 T-GDi Engine Problems, Reliability

2.2 HDi DW12 History of creation

First of all, it is worth starting with the history of the emergence of each of the 2.2 HDi DW12 engines under consideration. So, for example, it will be useful to know the year the engine appeared, as well as the duration of its existence in the automotive market.

1. DW12TED4

This engine is practically the first in the DW12 family line. Its release took place in 1999, and during this time the engine has shown itself to be a reliable engine that meets the needs of many motorists.

The initial engine power was 132 hp at the time of release. It was installed on many Peugeot and Citroen cars.

In 2000, the first changes took place. Manufacturers removed one of the two existing turbines from the DW12TED4, which made it possible to adapt the engine for commercial use.

Subsequently, the upgraded engine was used on many models of vans and minibuses from French companies. Also, a couple of years later, the Fiat concern became interested in the engine, which also decided to equip one of its cars with it.

In 2002, a car equipped with the engine of this model sets a world record for the number of kilometers traveled in a year. Thanks to the amazing power and reliability of the engine, the car was able to cover a distance of 512 thousand km.

2006 was the beginning of the expansion of the DW12 family of engines . So, for example, manufacturers launched such a engine as the DW12BTED4. He was able to develop a little more power than his “big brother”, so slowly all subsequent members of the family began to crowd out the original model.

As for the DW12TED4 engine itself, throughout its existence it represented a 16-valve diesel engine manufactured by Peugeot . The volume of the engine was 2.2 liters, and its release was carried out from 2000 to 2006. Design features include:

  1. The presence of 4 cylinders in the block. At the same time, cast iron without liners was used as a material for the manufacture of cylinders.
  2. The presence of 16 cylinder head valves, as well as two camshafts. The material for these structural elements is aluminum.
  3. Using a common rail fuel system.
  4. Built-in turbocharger that allows you to change the geometry. An intercooler was also included in the engine design.
  5. The presence of a timing belt, as well as a chain between the camshafts. It is worth noting that the use of belt drives made it possible to improve the reliability and quality of the engine and ensure its long-term performance.
  6. No need for valve adjustment. For this, manufacturers used hydraulic lifters. They changed the position of the valves as soon as they sensed a change in pressure in the engine.
  7. Use of a dual mass flywheel.

Also in this model of the engine there is a system for changing the air turbulence, which makes the operation of the car safer.

2. DW12BTED4

It is also a member of the DW12 family. Its release took place from 2006 to 2010. The engine was a special engine, installed only on prestigious cars of the French company. The engine displacement was 2.2 liters, and the power reached 175 hp.

3. DW12C

Another engine from a number of DW12 engine models. The volume of this engine was 2.2 liters, production took place from 2010 to 2015. Basically, the engine visited only two well-known models of the popular Peugeot concern, after which it ceased to be as popular as it was at the beginning of its appearance on the automotive market. It is also worth noting that this engine is found not only on vehicles of French companies. DW12C equipped some models of the American automobile concern Ford.

4. DW12MTED4

The volume of this engine is 2.2 liters, and from the name it is easy to guess which family of engines it belongs to. The production and release of such a engine was carried out in the periods of 2006-2010, and at that time the manufacturers tried to install it only on clones of the Mitsubishi crossover. It should be noted that this engine practically coincides in its characteristics with the DW12BTED4 model, and its main difference is the use of one turbine instead of two.

As for the features of this engine, its main feature is that it is 4-stroke. Such engines have a more complex design. For example:

  1. The crankshaft is additionally equipped with a more massive flywheel, which ensures smooth movement of the pistons during engine operation.
  2. The cylinder block uses a gas distribution mechanism, mainly a belt.
  3. The engine is started by using a starter inside the structure.

Finally, for the smooth operation of the DW12MTED4, manufacturers have used additional auxiliary devices, including various control systems, lubrication, fuel injection or cooling.


We can say the last of the representatives of the DW12 family, which is worth mentioning. The volume of the engine reaches 2.2 liters, and the power is 100-120 hp. depending on its modification. The production and release of the engine were carried out in the period 2002-2011. It was mainly used on popular minibuses of the Peugeot company of the same name, and also flashed on vehicles of the Citroen and Fiat concerns.

2.2 HDi DW12 Specifications

Thanks to the technical characteristics, any interested car enthusiast will be able to learn as much as possible about the capabilities of the car and its engine when choosing the right vehicle for themselves. Therefore, it is worth listing the main characteristics of each model of engine of the DW12 engine line under consideration.

1. DW12TED4

All main characteristics are given in the form of a table.

Cylinders, pcs.four
Valves, pcs.16
Engine volume, cm32179
Cylinder diameter and piston stroke, mm85; 96
Supply systemcommon rail
Maximum torque, Nm314
Maximum power, hp133
Type of fuel usedDiesel

In addition to the characteristics, an indicator of the environmental standard should be attributed, which corresponds to Euro 4/5.

2. DW12BTED4

The table also contains the characteristics of this engine.

Block materialCast iron grade R4
Block head materialAluminum grade 16v
Engine volume, cm32179
Cylinder diameter and piston stroke, mm85; 96
Supply systemcommon rail
Maximum torque, Nm370
Maximum power, hp170
Type of fuel usedDiesel
The presence of hydraulic liftersYes

As for the environmental class, its indicator for this engine is EURO 4.

3. DW12C

The main characteristics of this engine include those that are presented in the table below.

Block materialCast iron grade R4
Block head materialAluminum grade 16v
Engine volume, cm32179
Cylinder diameter and piston stroke, mm85; 96
Supply systemcommon rail
Maximum torque, Nm450
Maximum power, hp204
Type of fuelDiesel
The presence of hydraulic liftersYes

Ecological class EURO 5.

4. DW12MTED4

Among the technical characteristics of this engine note:

Characteristic typeIndex
Number of cylinders, pcs.four
Number of valves, pcs.16
Engine volume, cm32179
Cylinder diameter and piston stroke, mm85; 96
Supply systemcommon rail
Maximum power, hp72
Type of fuel usedDiesel

The model does not differ in increased power, but at the same time it is characterized by a rather qualitatively executed design.


Characteristics are also summarized in the table.

Characteristic typeIndex
Block materialCast iron grade R4
Block head materialAluminum grade 16v
Engine volume, cm32198
Cylinder diameter and piston stroke, mm86; 95
Supply systemcommon rail
Maximum torque, Nm320
Maximum power, hp120
Type of fuel usedDiesel
The presence of hydraulic liftersNot

Ecological class – EURO ¾.

As can be seen from the presented tables, the characteristics of the considered internal combustion engines are almost identical, with the exception of several indicators. If we talk about the location of the engine number, then, due to the fact that each of the engines belongs to the DW12 line, the engine number has the same location: the platform with the number is to the right of the generator.

2.2 HDi DW12 Problems And Reliability

Each engine has its own advantages and disadvantages, which will be discussed below.

1. DW12TED4

In the case of this model, the main advantages of 2.2 HDi DW12TED4 engine can be called:

  1. Powerful and at the same time economical engine. The engine does not consume much fuel, which is appreciated by many motorists.
  2. Demand and popularity in the automotive market.
  3. The presence of a huge resource, as well as the organization of uninterrupted operation with timely and proper care of the engine.
  4. Can be used with both manual and automatic transmissions.

Among the problems of the 2.2 HDi DW12TED4 engine should be noted:

  1. The presence of a FAP filter, which is not always convenient.
  2. Regular failure of the system that regulates the performance of the engine. This model uses the SWIRL system.
  3. The need to use only high-quality diesel fuel. Otherwise, the engine will quickly fail.
  4. Availability of balance shafts.

It can be concluded that the disadvantages are not so many compared to the advantages and they are not particularly significant. In general, the 2.2 HDi DW12TED4 engine is considered reliable, and its assembly is of high quality. And you can extend the life of the engine if you regularly inspect the condition of its elements.

2. DW12BTED4

As for this 2.2 HDi DW12BTED4 engine, the advantages are:

  1. Use of reliable elements.
  2. High power development.
  3. Low fuel consumption.

Among the problems of 2.2 HDi DW12BTED4 engine can be listed:

  1. Clogged particulate filter.
  2. The occurrence of errors in the operation of turbines: sometimes there is an overflow or underblowing.
  3. The need to use high-quality fuel.
  4. Mandatory regular replacement of an expensive fuel filter. It should be noted that if the replacement is ignored, the injectors may fail, which will entail a significant increase in the cost of repairs.

Finally, not every service center is ready to repair this diesel engine due to its complex design.

3. DW12C

Among the advantages of this 2.2 HDi DW12C engine, it is necessary to highlight:

  1. Low fuel consumption;
  2. Demand among car manufacturers;
  3. Using quality parts.

The main troubles in the design of the 2.2 HDi DW12C engine are:

  1. Clogged particulate filter. The owner of a car equipped with this engine will need to regularly clean this structural element so as not to cause overheating and failure of the internal combustion engine.
  2. Turbines in which errors occur.
  3. Clogged piezo injectors. In addition, it is worth noting that it can be very difficult to dismantle them, so not every service will agree to carry out such repairs.

Also, in the process of using the 2.2 HDi DW12C engine, there are problems with replacing the fuel filter, which also quite often becomes clogged or even becomes unusable.

4. DW12MTED4

The main advantage of this 2.2 HDi DW12MTED4 engine is the use of high-quality elements in the design. In this regard, the main disadvantages are manifested in the form of:

  1. Clogging of the fuel filter;
  2. Complicated repair of the fuel system with piezo injectors;
  3. Underblowing or overblowing of turbines during their operation.

Also, the particulate filter is often clogged, which is why the car owner will need to regularly replace this element. If such a problem is ignored, various troubles may arise in the form of failure of more serious parts of the engine design.


This model is considered exceptionally hardy, and this is its main advantage in comparison with other engines of this family. In addition, regular inspection of the condition of the 2.2 HDi DW12UTED engine, as well as timely replacement of the fuel filter, can ensure long-term performance.

The disadvantages of 2.2 HDi DW12UTED include:

  1. The difficulty of dismantling the nozzles if they need to be cleaned or replaced;
  2. The presence of strong vibrations. However, this minus is easy to get rid of if you replace the standard engine mounts with better ones.

As for the particulate filter, it practically does not cause problems, especially if it is removed immediately.

2.2 HDi DW12 Fuel consumption

Fuel consumption is an indicator that many potential car owners are guided by before buying it. Basically, it depends on which engine is used in a particular vehicle. Therefore, this issue in the case of the considered line of engines also deserves special attention.


The fuel consumption of this model is worth considering using the example of the Peugeot 607, which was first produced in 2003. The vehicle is equipped with a manual transmission and the fuel consumption using the engine in question is presented in table form.

Operating conditionsFuel consumption, l
In the town8.9
In the country5.5

As can be seen from the tables, on average, fuel consumption for all models is almost the same, but among them a couple of engines should be distinguished, in which the consumption during driving can be called quite low.

Where were the 2.2 HDi DW12 engines installed?

During the production and release of all engines of this 2.2 HDi DW12 engine line, each of them was installed on various models of cars of such well-known concerns as Peugeot, Citroen and Fiat.

1. DW12TED4

In the case of this engine, it was installed on the following vehicle models:

  • Peugeot (406, 607, 807).
  • Citroen (C5, C8).
  • Fiat (Ulysse).

The engine was also installed in a 2002 Lancia Phedra. The engine was used as an internal combustion engine for two years.

2. DW12BTED4

It was possible to notice this engine on the following models:

  • Peugeot (406, 607, 807).
  • Citroen (C5, C6, C8).

3. DW12C

As for this model, the engine was actively used in cars:

  • Peugeot (508).
  • Citroen (C5).

4. DW12MTED4

The engine of this type was built into cars:

  • Peugeot (4007).
  • Citroen (C-Crosser).

Additionally, it is worth noting the use of the engine in the Mitsubishi Outlander model.


Finally, a engine of this type could be seen in such cars as:

  • Peugeot (Boxer I, Boxer II).
  • Citroen (Jumper I, Jumper II).
  • Fiat (Ducato II, Ducato III).

As a result, it should be said that each of the engines of this family is a fairly reliable and high-quality power engine, which at the time of its production was very popular and in demand among fairly well-known concerns.


Each vehicle model uses a different internal combustion engine, and manufacturers try to install only the best engine options in their cars. This article will discuss Peugeot 2.2 HDi DW12 engines in more detail.

First of all, it is worth starting with the history of the emergence of each of the engines under consideration. So, for example, it will be useful to know the year the engine appeared, as well as the duration of its existence in the automotive market.

Reliability and durability are the main advantages of 2.2 HDI DW12 engine. At the same time, minor breakdowns and defects can occur quite often. With proper and timely maintenance, a mileage of 500,000 kilometers or more is not considered something special. But even such reliable engines have weaknesses that are a source of costly repairs.

5/5 - (40 votes)

Leave a Comment