Why do you think there is a problem if Iveco themselves don't?

I can't see that anyone has done anything wrong unless there is more to the story than you have told us.

You might be overthinking this. There are plenty of minor faults that can occure that won't bring up the engine light but lead to reduced power. Could just be a split turbo pipe, faulty MAF, stuck EGR, faulty MAP sensor, all cheap to repair compared with the 50% loss of selling. If you're otherwise happy with the van, take it to a diesel specialist who knows this engine & let them give it a once over.

Unless you know what you're doing i would suggest you follow Dieselnuts good advice and let a well regarded Diesel shop* have a look at it.

From the sounds of it the van is running fine if not quite as quick as you think it should be, and i too believe you are reading too much into this, especially now the dealer has given it the all clear.

Two apparently identical vehicles can be completely different in engine characteristics, this shows far more in loaded or large bodied commercials than it ever will with cars, it might need a bit of tweaking (easier in times gone by where increasing the fuel supply was but a turn of the fuelling screw in most cases)

Are you sure its the same spec and power output as the previous vehicle you mention?

*All Diesel shops are not the same...years ago we had a lorry that wouldn't give enough power leading to severe problems and suspension damage off road in heavy tip work, one Diesel shop (that i'd used personally and didn't rate) worked on it all day and the result was no change whatsoever...then we took it to the place i wanted it to go in the first place, they simply lifted the top off the pump and increased the fuelling (took all of twenty minutes) and the vehicle was instantly transformed into what it should have been for the rest of its working life.

Local taxi drivers who run Diesel cars are as good a bet as anyone to ask where to go if you are unsure locally.

Edited by gordonbennet on 30/12/2013 at 09:51

Thanks Gordon, the vans do have slightly different spec. The old one was a 2.8, new one is 2.3, but the old one was also 110hp, the new one 120hp,

I bet you a virtual pint thats the crux of the matter, massive difference in size, 125cc's per cylinder to be exact, unless the 2.8 was a 5 or 6 cyl.

I've been a lorry driver for some 38 years now and i can tell you without any doubt that the older design larger capacity engines were far more up to the job than the newer smaller engines, despite these newer engines being more powerful on paper, you really have to work them and unless the turbo is ''on stream'' there's just nothing there, most frustrating, even the auto rubbish will stall at low revs, something that never happened with the old school.

No replacement for cc's.

Edited by gordonbennet on 30/12/2013 at 14:46

Gordonbennett is dead right, BHP figures are less relevant to driveability than torque figures.

Compare torque figueres and the rpm at which max torque is developed and the smaller, newer engines need to rev higher for the same 'pull', so more gear-changing is usually needed.

Hi Bromp, i'd hazard a guess that your old Berlie with the 1.9NA Diesel is a nicer lazier drive in traffic or for general dodging about, notably for transporting they were unstallable and would pull right down to a few hundred rpm without the slightest bother, simply romped up the decks with no throttle at all.

Wouldn't it be nice if there were two maps and settings for these vehicles, one where you could divert the intake around the turbo for traffic etc and then switch it back on again for open road higher speed stuff.

You know you could get a quiet remap on the 1.6 if you wanted, and i could point you in the right direction if you were interested, bring that power band down to about 1300 rpm...::-) don't worry nobody would ever hear it from me, i'm taking the sordid (and juicy in some cases, i'm jealous) confessions of many to my maker.

Mind you the Berlie you have now was far better than the cars with that engine when i transported them, the lag and sudden power from the cars so fitted is quite horrid.

Edited by gordonbennet on 30/12/2013 at 22:44

Like the "Active Eco" that's standard on some Koreans.

Now i'm intrigued, please expand.

Standard on Santa Fe and Sorento and spreading among their smaller brethren.

Thankyou RT.

Now that is interesting, presumably using different fuel and turbo vane and possibly cam and/or timing mappings, was that originally to improve low engine speed torque or anti stall fuelling for off road i wonder in those two 4x4's, and some bright spark realised it made gentler driving easier and more pleasurable.

Driver switchable?

Would be interesting to drive one for a few days to get the feel, i kinda like those two vehicles anyway, but it would appear i'm not alone in that, as the current, inc pre facelift, models of each appear to be holding their value as well as Landcruiser/Hilux.

I had a Hilux 3 litre auto for 3.5 years, variable vane turbo and its single (as far as i know) mapping was lovely for low engine speed torque, you could hear the turbo start its whistling as soon as you came off idle giving instant massive torque, made for lovely easy driving...i'd had that same engine previously in a mechanically pumped manual Landcruiser, even better if that was possible though less powerful, so massive was the tickover and low speed torque that i'm sure the props or half shafts would have broken before the engine could be stalled, made for fantastic heavy off road going and towing, no throttle needed for pulling away on any incline, where others in similar changed down towing heavy up motorway inclines it didn't bat an eyelid.

Oddly enough though all that torque wasn't at the expense of overfuelling, the MOT tester always commented on the low emissions of that old Landcruiser as being virtually unreadable, never ever saw a single trace of smoke even at night under full throttle in the light of following headlights...see a non DPF'd Mondeo/Passat under power like that and you'll reach for the fire extinguisher.

Always makes me smile when i read comments about how the Japanese can't make good Diesels.

Apologies Avant, this has gone way off topic and i'm at least partly to blame again, you could always clean it up and dump the inapproriate posts in a new thread in Motoring or Technical i suppose...i expect there's quite a few of us don't really like these peaky new engines that need constant gearchanging, might be an interesting thread.

Edited by gordonbennet on 31/12/2013 at 11:09

Like the "Active Eco" that's standard on some Koreans.

Now i'm intrigued, please expand.

It's alternative settings for throttle mapping, gearchange points (auto only) and aircon settings - intended to improve economy - anecdotally no difference to fuel consumption but more relaxing to drive.

Standard on Santa Fe and Sorento and spreading among their smaller brethren.

Been standard on Mercedes autos for years starts in second and is supposed to smoother all at the flick of a switch just something else to go wrong .

Sounds a bit like the "winter" mode that Vauxhall used to fit on automatics, perhaps still do.

Slightly different to that, on the 124's (later models seldom interest me unless supercharged or V8, but for all i know are still the same) the standard gearbox was a 4 speed unit switchable for E and S modes, basically just changed kickdown throttle position, thats the bomb proof box in my current old MB.

An option was the 5 speed 'sports' box, the only way to get it to start off in Ist gear was to floor it from stationary, the 1st was somewhat lower than 1st in the 4 speed, driven normally it always started off in 2nd whether E or S was selected.

That 5 speeder was fitted to a E320 estate we owned (had 3 blinking MB's at one time, all 124's, bonkers), if you hit the thorttle enough to trigger 1st the initial take off was something else, staggering isn't too strong a word and all from a normal 3.2 24v 6 pot, ASR traction control was a must if you had that box and used it in anger.

The chap who bought it from us managed to snap a drive shaft, understandable, its quite addictive leaving lowered sporty modern cars for dead in a bog standard estate car.

Times i see written in various forums that MB's are old mens cars, its very funny.

Edited by gordonbennet on 31/12/2013 at 15:46

In the nicest possible way, its an Iveco Daily - its never going to be a brilliant van. If you wanted a decent quality vehicle you should be looking at a Sprinter or a Transit, so much better in every way.

I've lost track of how many Dailys you have owned but from your numerous posts on this forum about problems with them, I am a touch surprised to learn that you have bought yet another.