Engine codes

[starcott]

I"m trying to find out the difference between the following engines:
DW 10 FUD. and DW 10 FB.
I"ve tried emailing Citroen customer help but they tell me they don't deal with technical questions.
Can anyone suggest the best way to get an answer?

[GiveMeABreak]

They will generally be different power outputs, but all SCR engines.

[white exec]

Google (Wikipedia) 'PSA EW/DW engine' for lots of detail on the DW10 variants.

[GiveMeABreak]

I have info on the DW10FU C,D & E and the DW10FC, but not on DW10FB. Unfortunately that Wiki doesn't cover them in any detail.

Name	DW10FU (C/D/E)
Fuel	Diesel
Base Engine Weight	180 Kg
Displacement	1997 cm3
Bore	85 mm
Stroke	88mm
Engine Archtecture	4 Cylinders in-line
Number of Camshafts	2
Balance Shaft	No
Compression Ratio	16.7/1
Piston Rod Centre Distance	145 mm
Max Rotation	5000 RPM
Idle rotation	750 RPM
Injection System	Delphi DCM6.2
High Pressure Pump	Delphi DFP 6.1E
Injector	Delphi
Torbo	VGT (BWTS)
EGR Valve	Yes
EGR Cooler	Yes
Intercooler	Yes
Catalyst	Yes
DPF	Yes
SCR	Yes with 1 downstream NOx sensor
Coolant	Brugarolas Bradol 497 (dilution 50%)
Arteco Freecor DSC (dilution 50%)
Water Temp. Criteria	112°C for continuous (95%); 115°C for peak (4%); 118°C for exceptional (1%)
Oil Temp. Criteria	125°C for continuous; 145°C for peak (5%)
Oil Capacity	6.6 L
Standard Installation	E/W and 4° forward (Intake side)

The differences between these three variants are the power curves:

[starcott]

Thank you for those answers.
I have studied the information on DW10 engines on the internet, but have not found any way to identify which engine I have.
The V5 lists the engine number as DYZZ.......
The 3rd to 8th digits of the VIN are YD2MFC.
The engine is a 2.0 blue Hdi, first registered in 2016.
Can anyone please suggest where I can find the answer?

[GiveMeABreak]

That won't help - I simply need the VIN if you want to know which one you have.

[starcott]

VF7**************[VIN obfuscated, can be read by forum staff]

[GiveMeABreak]

Ok, so confirmed, you have the DW10FUD engine. So your performance curve data will be in the second image with the large marching ants.

[starcott]

Thank you

[GiveMeABreak]

Some basic information on the DW10F engine for you...

Main structure of the DW10F engine
Special features:

• 4 cylinders, 16 valves with twin overhead camshaft, driven by toothed belt
• An inlet manifold incorporated into the cylinder head cover
• A vacuum reserve fixed on the exhaust gas heat recovery module
• An exhaust manifold located on the rear of the engine
• An oxidising catalytic converter mounted directly on the turbocharger outlet
• Reduction of the "NOx" by introducing a reducing agent into the exhaust line on entering the deNOx catalytic converter
• One-piece deNOx catalytic converter/particle emission filter assembly (Inseparable assembly)
• Variable geometry turbocharger, with position repeat sensor (Without water cooling)
• Air/air heat exchanger (cooling of the turbocharged air)
• A coolant pump driven by the timing belt
• Variable-flow oil pump (Engine lubrication system controlled by an electrovalve controlled by the engine management ECU)
• A motorised coolant outlet housing controlled by the engine management ECU
• HDI direct injection system
• An exhaust gas recirculation system
• An exhaust gas recirculation electric electrovalve
• A turbo pressure regulation electrovalve
• A "pressurised" low pressure circuit (4,1 bars relative and regulated)

HDI direct injection system DELPHI DCM 6.2
Special features of the injection system:

• Fuel injection managed as a function of engine torque
• Fuel pressure in the high pressure common rail can reach 2000 bars
• Fuel pump (electric scavenging) integrated in the fuel gauge-pump module
• DFP6.1E type high pressure fuel pump
• Complies with emission standard Euro 6

Euro 6 emission control standard
Objectives of emission standard Euro 6:

• Emissions of carbon monoxide (CO) limited to 500 mg/km (Identical to Euro 5)
• Reduction of the quantity of particles to 4,5 mg/km (10 % lower than the Euro 5 emission control standard)
• Reduction of emissions of nitrous oxides (NOx) to 80 mg/km (55,5 % lower than the Euro 5 emission control standard)
• Reduction of combined emissions of hydrocarbons (HC) and nitrous oxides (NOx) to 170 mg/km (26 % lower than the Euro 5 emission control standard)
• Extension of life of pollution checking devices to 160000 km (It must be possible to check the conformity in service for 5 years or 100000 km)