Discussion
I have a 2007 Audi A8. 3.0Tdi which I want to remap principally for better economy due to my daily commute now being 160 odd miles.
Of course if some extra grunt was to be liberated into the process that would be fine - but economy is the main aim.
Who do people recommend and what have your experiences been?
Of course if some extra grunt was to be liberated into the process that would be fine - but economy is the main aim.
Who do people recommend and what have your experiences been?
I have a 2009 Audi A3 2.0TDi 170.. I was considering a remap as some companies make some quite bold claims about expected BHP and torque increases..
Its reasonably expensive and for it to make sense I would have to have my DPF removed.. whilst mechanically not an issue it would make my diesel quite smokey and I don't want that.
You have a 3.0 engine, regardless of diesel or not, it wont be great on fuel, just try and drive it better.
Its reasonably expensive and for it to make sense I would have to have my DPF removed.. whilst mechanically not an issue it would make my diesel quite smokey and I don't want that.
You have a 3.0 engine, regardless of diesel or not, it wont be great on fuel, just try and drive it better.
Mr Gearchange said:
I have a 2007 Audi A8. 3.0Tdi which I want to remap principally for better economy due to my daily commute now being 160 odd miles.
Of course if some extra grunt was to be liberated into the process that would be fine - but economy is the main aim.
Who do people recommend and what have your experiences been?
I saw a significant increase when using a Spider diesel tuning kit. Sits in line with the existing ecu, generally plugs into fuel /injector rail and you can fit it yourself in minutes. Of course if some extra grunt was to be liberated into the process that would be fine - but economy is the main aim.
Who do people recommend and what have your experiences been?
I got around 4-5mpg extra when using the kit, and most importantly, it cured a flat spot in the 1800-2200 rev range that was there as standard. I worked out that it would take 20 months to pay for itself, but in the meantime i got 40-50 miles more out of every tank, and the car was smoother and quicker to drive. It is important to note that i generally wasn't paying that much attention to economy driving, so if you were really committed it may have helped liberate more MPG. When i sold the car i sold the tuning kit via a forum so overall i did save money, got about 25% of purchase price back.
Lee540 said:
I have a 2009 Audi A3 2.0TDi 170.. I was considering a remap as some companies make some quite bold claims about expected BHP and torque increases..
Its reasonably expensive and for it to make sense I would have to have my DPF removed.. whilst mechanically not an issue it would make my diesel quite smokey and I don't want that.
You have a 3.0 engine, regardless of diesel or not, it wont be great on fuel, just try and drive it better.
I call bull here, your A3 is fitted with a DPF, and the 170s were problematic to begin with but can be remapped with the DPF still in situIts reasonably expensive and for it to make sense I would have to have my DPF removed.. whilst mechanically not an issue it would make my diesel quite smokey and I don't want that.
You have a 3.0 engine, regardless of diesel or not, it wont be great on fuel, just try and drive it better.
3.0 TDi in the Audis are not bad on fuel, not as good as the BMW 3.0 however i found with both of my 335ds after the remap the MPG increased by around 3mpg in town and around 5 on a run,
I would highly recommend remapping it, for the performance gain alone is worth the extra expense, the MPG increase is merely a bonus in my opinion
martin mrt said:
Utter bulls
t, your A3 is fitted with a DPF, unless this has been removed (highly unlikely) your car won't smoke much, if at all, check the insides of your tailpipes and see how dirty your fingers get
3.0 TDi in the Audis are not bad on fuel, not as good as the BMW 3.0 however i found with both of my 335ds after the remap the MPG increased by around 3mpg in town and around 5 on a run,
I would highly recommend remapping it, for the performance gain alone is worth the extra expense, the MPG increase is merely a bonus in my opinion
Read my post properly before you comment.. t, your A3 is fitted with a DPF, unless this has been removed (highly unlikely) your car won't smoke much, if at all, check the insides of your tailpipes and see how dirty your fingers get 3.0 TDi in the Audis are not bad on fuel, not as good as the BMW 3.0 however i found with both of my 335ds after the remap the MPG increased by around 3mpg in town and around 5 on a run,
I would highly recommend remapping it, for the performance gain alone is worth the extra expense, the MPG increase is merely a bonus in my opinion
I said, if I were to have a remap then I would have to have the DPF removed.. I haven't and its still there and my car does NOT smoke at the moment.
The reason tuners state that the fuel consumption improves when they map things is so that the thought of halving the mpg doesnt put people off doing it, not because the gains are significant. Its not worth doing it for fuel economy, they just want to advertise that mapping your car wont leave you with 10mpg.
4key said:
The reason tuners state that the fuel consumption improves when they map things is so that the thought of halving the mpg doesnt put people off doing it, not because the gains are significant. Its not worth doing it for fuel economy, they just want to advertise that mapping your car wont leave you with 10mpg.
Now THAT is utter bks I'm afraid.nottyash said:
You don't have to have the DPF removed to remap a car, and done properly there is no smoke.
I understand that you don't, some tuning companies make claims of +45bhp increase with a stage 1 map.. however, reading into it a little further, this is with removal of DPF.I would consider a remap tomorrow if I knew it wouldn't chuck out black smoke everytime I went on the throttle.
Could you pelase point me to one where I could get maximum benefit without removal of said parts.
The 3.0Tdi engine will sound unbelievable with dpf replacement pipe and remap, the power gains will be worth every penny.
Not too sure about the economy gains though, the dpf is very restrictive so I suspect a decent economy map will improve things, not by a noticiable amount though. When I had my car map+dpf delete I found the mpg didn't noticably change, unless I was a bit heavy with the right foot then it dropped significantly.
I had no smoke whatsoever, even with 275hp from a 2litre with no emissions filtering
Not too sure about the economy gains though, the dpf is very restrictive so I suspect a decent economy map will improve things, not by a noticiable amount though. When I had my car map+dpf delete I found the mpg didn't noticably change, unless I was a bit heavy with the right foot then it dropped significantly.
I had no smoke whatsoever, even with 275hp from a 2litre with no emissions filtering
I've been part of trials for fleet vehicles and economy gains of 20% are not uncommon.
The question is, how far do you want to go?
If you pull enough fuel out, the performance will start to suffer.
If the maps are optimised in the right way, you won't really notice a performance drop in everyday driving, but the gains can be impressive, especially on turbodiesels.
The question is, how far do you want to go?
If you pull enough fuel out, the performance will start to suffer.
If the maps are optimised in the right way, you won't really notice a performance drop in everyday driving, but the gains can be impressive, especially on turbodiesels.
I was chatting with a mechanic fried of mine recently who does a lot of Diesel tuning, he said the German brands have tended to see moderate improvements in economy, the only one that actually seemed to make suprising gains in economy is Volvo... That would fit with anecdotal evidence from various forums that I've heard
Depending on the age of the car I'd get it done just for the extra grunt and smoothness, and I plan to once I'm a bit more financially stable, the fuel ecomomy is just a bonus...
Depending on the age of the car I'd get it done just for the extra grunt and smoothness, and I plan to once I'm a bit more financially stable, the fuel ecomomy is just a bonus...
A good friend of mine remapped his 335D M Sport just before we went on a trip through France, Germany and Switzerland.
Pre-map he would average about 38mpg (real world driving) and about 520 miles in a tank.
Post-Map and through France on the way back we managed 640 miles at a steady 80mph. Which is 47.7 MPG.
It was significantly quicker as in warp-speed quicker and he tells me that over the whole trip, fast driving, up mountains etc... the overall for the trip was 40.9mpg.
Clearly each model is different and in general the view seems to be that any MPG gains are due to pressing the go pedal less to get up to speed. In real world terms I think this equates to negligible mpg gains.
However... on the 335d the gains were significant both on MPG and Performance.
Pre-map he would average about 38mpg (real world driving) and about 520 miles in a tank.
Post-Map and through France on the way back we managed 640 miles at a steady 80mph. Which is 47.7 MPG.
It was significantly quicker as in warp-speed quicker and he tells me that over the whole trip, fast driving, up mountains etc... the overall for the trip was 40.9mpg.
Clearly each model is different and in general the view seems to be that any MPG gains are due to pressing the go pedal less to get up to speed. In real world terms I think this equates to negligible mpg gains.
However... on the 335d the gains were significant both on MPG and Performance.
4key said:
The reason tuners state that the fuel consumption improves when they map things is so that the thought of halving the mpg doesnt put people off doing it, not because the gains are significant. Its not worth doing it for fuel economy, they just want to advertise that mapping your car wont leave you with 10mpg.
Incorrect. You can actually improve the mpg of a modern diesel relatively easily because they are so constricted in their calibration to CO2, CO, HC and NOx therefore if you ignore that target and go for BHP and mpg you can get improvements.Gassing Station | General Gassing | Top of Page | What's New | My Stuff