2003 2.2Hdi Dpf Data And Performance

[PICASSOCONVERT]

Antipollution faults, DPF blockages and other issues seem to feature quite often in tales of elderly diesel C5s. Having recently bought Lexia, added 3 litres of Eolys fluid and done battle with the ECU to get it to realise that there is now more fluid and life can go on as normal, I thought it might be helpful to list the information available from Lexia and invite comments on my car's vital DPF statisitics.

 

The car has done 94,000 miles and there is no record of any Eolys fluid having been added previously (I have owned the car for the last 5 years since approximately 50,000 miles and I always refuel from an almost empty tank).

 

So here is the data:

 

Engine speed (RPM)                                                    739 (tickover)

Vehicle speed (KPH)                                                     0

Particulate filter status                                                   Intermediate zone

Regeneration assistance required                                Inactive

Catalytic converter upstream temperature ©              148

Catalytic converter downstream temperature ©          148

Particle filter pressure in/out differential (mb)               11.8

Air temperature ©                                                       19

Engine coolant temperature ©                                    72

Air volume flow (cu metres/hour)                                   50

Inlet air heater throttle open cycle ratio (%)                   5

Post injection flow (cu mm/stroke)                                  0.00

Post injection phasing (degrees)                                   0.0

Total fuel additive quantity (grammes)                           173

Distance since last regeneration (km)                           348

Average last 5 regenerations (km)                                796

 

My conclusion is that the value of 11.8mb for the DPF in/out pressure differential indicates the filter is not blocked. I also reckon that the regeneration distances show that regeneration is taking place (no limp mode yet!).

 

All comments/observations welcome.

 

David

[coastline taxis]

If they were my readings id be quite happy with them. everything looks good. And your correct about the dpf presure

[PICASSOCONVERT]

Hello Mr Coastline, thank you very much for your reply and the reassurance.

 

Best wishes.

 

David

[paul.h]

Unless the engine had just been started, the engine coolant temp is low, about 95°C would be normal and the thermostat should start to open at  83°C according to the RTA manual for the mark 1 2.2 hdi (gives 89°C for the 2.0 hdi). It also gives the engine fan first speed should start at 97°C or if the air con is on.

 

The total fuel additive quantity, if that is the amount left, using a density of about 800 g/litre, is only about 0.2 litres.

 

To get a degrees symbol, I hold down the key board Alt button and then in order the 248 buttons on the right side of the key board. The combination of these number buttons give other shortcuts to symbols.

[PICASSOCONVERT]

Hello paul.h - thanks for the comments.

 

The engine was warming up, hence the lower than normal coolant temperature.

 

The total fuel additive quantity is interesting. I'm not sure what the number actually means. Having added 3 litres of Eolys recently the only way I could get rid of the low diesel additive warning was to set counters 1 and 2 to zero (at first I expected counter 1 to be the total Eolys in the fluid tank).

 

As the full to full fuel consumption on my last tankful was 51.1mpg (mainly motorway driving at around 65mph) I am quite happy. Also pleased to drive about 600 miles last week without any warning lights or error messages.

 

Thanks for the keyboard tip.

 

David