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Dilemma - What to do now? TDI v TFSI

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  • Author

They were about when I first posted.

That seems always the case. When you are not looking seriously, there are a couple of good ones for sale. As soon as you start looking, none around. Had to look seriously for 3.5 months before I found mine, and then had to take the train 160 miles to pick it up. I bought it over the phone and gave a deposit, on the provision that if it was not as described, the garage would refund me. Not the best way to buy a car, but at least I had a get out verbal clause from the reputable garage. One I did phone up about before that was sold before the add even came out on autotrader. You may have to be patient, but if a good one comes up, get there quick. Real happy with mine and going to keep it for some time.

walk, run, bike, bus, train ;-)

 

 

If you drive with DPF cars short trips...you destroy turbo, DPF, engine oil. If you drive any turbo car short trips, you will kill it. Nothing kills turbo faster than short trips in traffic and eco-friendly drivers who thinks 6th gear at idle revs save money :-D

 

If I'm lazy and drive to work...I had to do weekly EXHAUST BURNING contest in mountains or at least take it for a spin on highways. With short trips I get at least 5% of diesel in engine oil and it needs to be change every 5000km.

 

Unsure about new cars but my car won't tell me if DPF regeneration was successful. Yesterday, I watched diagnostic during drive...DPF regenerated during traffic jams. All appeared ok but few kilometres later I observed how DPF got clogged again...it was like observing rev gauge.

 

It is hard to regenerate DPF on country side roads...it needs steady speed with 30% of load so that engine can retard start of injection and emit max temperature into exhaust. During DPF regen my EGT temp is around 800; if you stop on traffic light you're down to 300. DPF needs at least 650deg C for burning out.

  • Author

I brought my diesel before the add had a picture. Went up on the Friday afternoon, was mine Saturday morning.

Wow Sniper29a. You put up a convincing argument... Scared me now. What was you driving at the time?

I brought my diesel before the add had a picture. Went up on the Friday afternoon, was mine Saturday morning.

Wow Sniper29a. You put up a convincing argument... Scared me now. What was you driving at the time?

I don't deal in arguments or theories. I deal in facts based on my experiments. Sadly, internet is full of eExperts and confused public.

 

You won't find this information because manufacturers need to sell cars, parts ;-)

 

Check out this forum and you find many people whining about TDi and DPF...yet they refuse to accept simple design purpose of those cars.

 

 

Scared me now. What was you driving at the time?

 

what you mean chief?

 

Edited by sniper29a

  • Author

Scared me now. What was you driving at the time?

what you mean chief?

I take it you were driving a Mk2 Octy VRS?

I take it you were driving a Mk2 Octy VRS?

I've self-made vRS

 

It doesn't matter...it applies to any TDi with DPF or basically any turbocharged auto

  • 2 weeks later...
  • Author

So I've just done 600+ miles this past week on a trip to Cornwall & Shropshire from Birmingham. On arrival back at my house I noticed the fan remained on the car. It wasn't particularly warm and it was very wet. I understand this could be a sign of an interrupted regen?

The very next journey was my bog standard trip to the train station. Again not very warm and wet again. Fan remained on, another interrupted re-gen?

The father-in-law suggested I drive once an week the long way home between motorway junctions, but based on the above I don't see how this is going do any good. I've looked at the manual and even doing this I might not hit the required parameters to spark the regen. Plus its a waste of fuel and adding unnecessary miles.

I'm gonna get a petrol.

Edited by SP36

So I've just done 600+ miles this past week on a trip to Cornwall & Shropshire from Birmingham. On arrival back at my house I noticed the fan remained on the car. It wasn't particularly warm and it was very wet. I understand this could be a sign of an interrupted regen?

The very next journey was my bog standard trip to the train station. Again not very warm and wet again. Fan remained on, another interrupted re-gen?

The father-in-law suggested I drive once an week the long way home between motorway junctions, but based on the above I don't see how this is going do any good. I've looked at the manual and even doing this I might not hit the required parameters to spark the regen. Plus its a waste of fuel and adding unnecessary miles.

I'm gonna get a petrol.

My car switch on warning light during interrupted DPF regen. For example when DPF is regenerating and you stop on traffic light.

 

As I've written in an other thread...people are confused about design purpose of things...for example TDi is designed for long trips with steady operating conditions ;-)

 

Nothing kills turbo, DPF quicker that short trips with thermal shocks of start, stop of cold engine.

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