Getting the old girl remapped... I should have learned my lesson by now...

SO8 said:
I had my 330d LCI remapped from 245bhp to 305bhp (shown on a rolling road) and tbh it was a great map. Smoother, incredibly rapid to say the least .... but I preferred it as standard ! .
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With that in mind, that's how the 335 will probably stay!
 
ronk said:
SO8 said:
I had my 330d LCI remapped from 245bhp to 305bhp (shown on a rolling road) and tbh it was a great map. Smoother, incredibly rapid to say the least .... but I preferred it as standard ! .
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With that in mind, that's how the 335 will probably stay!
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I think personally that is wise. They map easily (well not so easily with the newer ones) but as the power band is so small everything is violent in a car that was already damned quick !
 
ronk said:
The appeal in the recent twin turbo set ups is they don't seem to have any lag and along with the recent 8 speed auto box it just gives what seems like one long push in the back! The auto box has the changes well sorted so no noticable tail off.
I certainly wouldn't put this engine down as hateful - and Im not saying that because i have one either.

The car has changed my opinion - Enough grunt to embarrass a lot of fast cars. Thats why Im currently hanging back re the remap.
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Yes, sorry a 6 cyl is better of course. I was referring to my engine which was a 4 pot and sounded/felt like a tractor. It was also a manual which was a big mistake, the auto I test drove was much more pleasant. Having the rattling noise combined with vibrations through the clutch like driving an old VW Bora did not make me think I'd spent my 20k wisely.

I'm just not sure I would feel the need for a 400 bhp diesel, it's not like the 35iS where you get the drama, noise, smoothness, powerband and emotional connection. Diesel's are designed for one purpose (all strictly IMHO), to be efficient and practical - a 730d would suit me fine, but a 640d cab would not (for example)!
 
I'm not a fan of 4cylinder engines any more!

I would like to see the graphs of power and torque of the 335 v 35is - it's not a narrow power band.
The books seem to say that it will hit 100mph in 12seconds . I think it's best linked to the standard auto box.
As has been said, if a re map narrows the power band then it would spoil the overall drive.
The 335 feels just like a n/a big engine and as for noise - there isn't any !

It would take a fast car to keep pace with it - certainly my 3.0l Z4 would struggle.
 
I wouldn't bother with the higher power BMW diesel engines. The purpose of a diesel is money saving and the 335d gets pretty bad mpg.

So a cheap banger 4cyl diesel is perfect. No point spending £60k on a 640d to save a few quid on fuel. Get the petrol!
 
ronk said:
I'm not a fan of 4cylinder engines any more!

I would like to see the graphs of power and torque of the 335 v 35is - it's not a narrow power band.
The books seem to say that it will hit 100mph in 12seconds . I think it's best linked to the standard auto box.
As has been said, if a re map narrows the power band then it would spoil the overall drive.
The 335 feels just like a n/a big engine and as for noise - there isn't any !

It would take a fast car to keep pace with it - certainly my 3.0l Z4 would struggle.
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This is my boost, which almost mirrors torque/power. I have almost full torque for around 4800 rpm of my power band.

datazap_chart_1.png
 
With mondeos now coming with 3 cylinder 1.0 turbo engines, diesel emission scandals, costs going up on diesels as they struggle with nitrogen emissions and need bags of piss (adblue) etc to meet standards (or not if it a vw/audi!).
They also never get anything like the around town claimed fuel figures, just ask any taxi driver.
Surely the rise of the diesel is at and end and they are now going into decline. I know some industry figures think this is the case.
 
R.E92 said:
I wouldn't bother with the higher power BMW diesel engines. The purpose of a diesel is money saving and the 335d gets pretty bad mpg.
!
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Ours is showing 40mpg on the obc on local 10/ 15 mile runs on A and B roads steady driving and a few good squirts - On a motorway 70mph run it showed 50mpg
I don't think that bad? The motor has only got 2k on the clock and I think the mpg improves with a few more miles? Our previous Audi 3.0 was showing 30 on the same 10 /15 mile runs.

I don't think I will ever be able to drive it like I stole it and avoid jail !

My reason for buying the diesel wasn't to save money, I don't do that many miles to worry about mpg, I bought it because is it's faster than the petrol version and Iliked the torque it produces .
 
I would like to see then torque curves overlayed but a quick look makes the torque of the 335d look impressive - mean peak between 2 & 3 and dropping off at 4. - If the gearbox changes at the right time it would keep it on song !
 
You mean something like this:
slpqhl.jpg


I will say I'm not convinced the base power/torque figures are that accurate. They just happened to be in a table rather than a rolling road printout that I'd have to measure.
 
I've read that remaps are always visible even at a dealer tech level.
However in the event of a big failure the dealer makes a connection to Munich for a full interrogation.

I think that during a warranty period it would be better to leave it untouched .
 
Maniac said:
Well IME diag is usually £80 and a reflash around £99 but that would depend on the work they did in the end. The battery is around £190 fitted and registered. Mega bucks but then if it needs it I'll do it.
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Holy crap! Does it contain Di-lithium crystals or something?

Glad it's sorted
 
ronk said:
I think that during a warranty period it would be better to leave it untouched .
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I read that a lot and I always wonder on the rational.

The risks are the same. Only the parts associated with the modification you make would be invalidated under warranty.

Therefore if something goes wrong within or without warranty, the risk and costs to resolve are the same.
 
Logically, you are right. However, often any excuse is used to not even look at the car "under warranty" as it was modified and even the diagnostic would become chargeable.
 
pvr said:
Logically, you are right. However, often any excuse is used to not even look at the car "under warranty" as it was modified and even the diagnostic would become chargeable.
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Which is actually illegal under UK law, they can't say no were not replacing that wiper motor because you've remapped the ECU for example. Sure things are rarely that simple but that's the fact.
 
Always a grey area where a dealer is concerned however the user manual and and service packs if bought with a new car usually state any non approved modifications invalidate the warranty and service pack. I guess technically if you mapped the engine and it broke and you removed the map before booking it into the dealer for warranty work without letting on then you are committing fraud?

Tim.
 
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