Alfa Romeo Forum banner
161 - 180 of 180 Posts
My friend is a cop.....and judging by the massive spike in dpf thefts since last April lots of owners are have no problem at all with the new MOT rules! lol. My friend had the one off his car stolen from a locked garage when he was on holiday!
 
I have recently got a 159 2.4TI which has had a EGR blanking plate / Delete together with a DPF Delete with a straight through pipe and remap by AHM. It cost the previous owner about ÂŁ700 for this to be done.

The good news is the original owner kept the DPF which I have. MOTs in the past have been done let’s say by garage who turned a blind eye.

Next MOT due in July so I will be getting DPF refitted however understand will need to reverse the MAP back to normal.
Hoping not as seems a shame as will be paying to effectively reverse ÂŁ700 of upgrade. :smokin: Just hoping that original DPF has no issues having sat in a bin bag in garage for 5 years.

It is a bit of a borderline car price wise (however always wanted a 159TI SW since seeing one my GTV struggled to keep up with and always loving the look) although low purchase price reflected a clutch needs doing which obviously not cheap on these, so any massive costs over and above to make car slower seems odd.

Also with the DPF refitted what propblems are likely to reappear , regen is made to sound like a problem however as I understand just needs an occasional long drive?

Any particular recommendations on best way to clean the DPF/CAT whilst Taking advantage of it being off the car?
 
I have recently got a 159 2.4TI which has had a EGR blanking plate / Delete together with a DPF Delete with a straight through pipe and remap by AHM. It cost the previous owner about ÂŁ700 for this to be done.

The good news is the original owner kept the DPF which I have. MOTs in the past have been done let’s say by garage who turned a blind eye.

Next MOT due in July so I will be getting DPF refitted however understand will need to reverse the MAP back to normal.
Hoping not as seems a shame as will be paying to effectively reverse ÂŁ700 of upgrade. :smokin: Just hoping that original DPF has no issues having sat in a bin bag in garage for 5 years.

It is a bit of a borderline car price wise (however always wanted a 159TI SW since seeing one my GTV struggled to keep up with and always loving the look) although low purchase price reflected a clutch needs doing which obviously not cheap on these, so any massive costs over and above to make car slower seems odd.

Also with the DPF refitted what propblems are likely to reappear , regen is made to sound like a problem however as I understand just needs an occasional long drive?

Any particular recommendations on best way to clean the DPF/CAT whilst Taking advantage of it being off the car?
The answer to your DPF question really depends on whether you are concerned about driving a car on the road which is modified / not road legal / illegal etc. If this doesn't bother you and you just want the car to pass an MOT test legitimately on the day, then you can re-fit the DPF, take the car straight in for test, then after it passes, remove the DPF straight away. If you don't it will quickly block up and cause running issues, so don't think you can wait a week or two before removing it. But for a few miles, it won't be a problem assuming the DPF you have isn't already blocked.

If you want to have a DPF fitted and working again so the car is legal (but perhaps keep EGR delete) you should take it to Autolusso in Bedfordshire, as they have the equipment to flash the ECU back to standard, removing any previous modified software. Then they can map out the EGR valve if required.

A word of warning, the car will not be the same beast with a DPF refitted. It'll probably be worse on fuel and much slower / less responsive.
 
The answer to your DPF question really depends on whether you are concerned about driving a car on the road which is modified / not road legal / illegal etc. If this doesn't bother you and you just want the car to pass an MOT test legitimately on the day, then you can re-fit the DPF, take the car straight in for test, then after it passes, remove the DPF straight away. If you don't it will quickly block up and cause running issues, so don't think you can wait a week or two before removing it. But for a few miles, it won't be a problem assuming the DPF you have isn't already blocked.

If you want to have a DPF fitted and working again so the car is legal (but perhaps keep EGR delete) you should take it to Autolusso in Bedfordshire, as they have the equipment to flash the ECU back to standard, removing any previous modified software. Then they can map out the EGR valve if required.

A word of warning, the car will not be the same beast with a DPF refitted. It'll probably be worse on fuel and much slower / less responsive.
Yes thinking if going to the trouble will keep it legal, sort of a nice runaround I am assuming can still have some form of Map for a few more ponies, like with my 147Duc which had remap and swirl flap delete. (wife has stolen 147 from me, I assume this will also have a DPF. )

Thus the idea of swapping back and forth seems like a right old faf and not sure want any problems of car not being road legal. I suppose if it had been done as a drilled out DPF and would still pass MOTs perhaps I could have been unaware???? however as have the correct DPF I assume a compromise on map is going to be the way.
 
Yes thinking if going to the trouble will keep it legal, sort of a nice runaround I am assuming can still have some form of Map for a few more ponies, like with my 147Duc which had remap and swirl flap delete. (wife has stolen 147 from me, I assume this will also have a DPF. )

Thus the idea of swapping back and forth seems like a right old faf and not sure want any problems of car not being road legal. I suppose if it had been done as a drilled out DPF and would still pass MOTs perhaps I could have been unaware???? however as have the correct DPF I assume a compromise on map is going to be the way.
We are doing a lot of DPF refitting to get diesel Alfas through their MOT's

With the new regulations the 2.4 needs to be 0.51PPM which is very low and standard DPF filters often don't filter enough to through the MOT

The 147 won't have a DPF filter and a much higher allowance to get through the MOT 1.21PPM

Ned
 
What is the difference between the DPF types fitted to 2.4 and 1.9 on 159?
I have seen on a few posts that the 2.4 if twin pipe can be modded to fit 1.9.

My original that was kept was part number 298 8527 841. Was planning on keeping this as is for the moment in case I decide to remove mapping and replace.

The car has a straight through pipe on it at the moment so in short term think I will add a bored out DPF for the short term so at least looks legit. Thus looking for a blocked DPF cheap I could put a big drill through. Thus no immediate need for deciding on reversing the mapping and more likely to get through a “friendly MOT” center.

Have seen one for Sale cheaply that is already drilled out quite cheap although in picture looks the same it is numbered 298 8527 950? Would this fit on the 2.4?
 

Attachments

You know it wont pass the new type MOT without a fully complete and working one right? Having one that "looks" right will no longer pass.....not since last April.
 
You know it wont pass the new type MOT without a fully complete and working one right? Having one that "looks" right will no longer pass.....not since last April.
Yes that’s the gamble, somehow previous owner managed to get it through an MOT last July with just the bypass pipe. I assume a few MOT places are still turning a blind eye! Thus having spoke to a few people the thought was at least if does not look obvious may get through another one or so. In an ideal would reverse Map and refit original DPF however seems like quite a lot of cost to take a step backwards.

Not sure what sort of power can be achieved from these over standard with DPF?
 
Well it should not have done and the tester is risking a big fine.....and so are you if you get caught without it.....£1000....but its your choice. Insurance could also bean issue if you have an accident and its spotted….because you are driving a car that should not be on the road you could have fun getting a pay-out. Your car...your money...your choice.
 
Well it should not have done and the tester is risking a big fine.....and so are you if you get caught without it.....£1000....but its your choice. Insurance could also bean issue if you have an accident and its spotted….because you are driving a car that should not be on the road you could have fun getting a pay-out. Your car...your money...your choice.
Good God :vs_poop::vs_cry:
 
Yes that was my point previous owner managed to get through MOTs “ car is on Sorn “ since I bought it and trailered to my storage facility, as weighing up financial viability of putting back on road. Other issues with car this was just one. Really was seeing where others are on this? I think now would fail emissions test as Ned mentioned even if MOT tester missed DPF I cannot see how would get by emissions. Or particulates in exhurst gas.
 
Do it....if you dont legally put it back on the road what use is it? Its either a very large paper weight or has to be broken for spares....bit of a waste of a nice car either way!
 
Yes that was my point previous owner managed to get through MOTs “ car is on Sorn “ since I bought it and trailered to my storage facility, as weighing up financial viability of putting back on road. Other issues with car this was just one. Really was seeing where others are on this? I think now would fail emissions test as Ned mentioned even if MOT tester missed DPF I cannot see how would get by emissions. Or particulates in exhurst gas.
Were you planning on using the 159 as a daily?
 
I had mine mapped back in for its MOT in Feb, i much prefer to run without the DPF, when I checked my emissions it had been tested at 1.2% not the 0.51 (or similar) it says on the plate
 
Were you planning on using the 159 as a daily?
Not quite that simple “ just an itch to run one for a bit” so Idea was to use as a daily during the summer months can still do normal family stuff in nice looking car. (GTV is my summer weekend toy)
The idea is then to swap back to my 4x4 during winter as daily.

I sold that story to the Mrs Boss as follows:

Sort of man justification is that the six months 4x4 put on Sorn means sort of pays for the cost of keeping 159! Just road tax difference covers both MOTs basic oil servicing etc. . Insurance neutral as can swap over once a year. ( saying that my insurance is cheap per car anyhow.) being almost 50 with 20plus years no claims is fortunate.

Sort of man maths is that as only using each car half the year means only half mileage, half wear and tear. If I was also keeping 159 in the dry through winter months and as the more fragile less exposure to salt and winter deterioration. Add to that the fuel economy of the 159 should be almost so good compared to the Grand Cherokee 21 MPG average, best on Kent to Scotland 28mpg. Means that again it sort of means it pays for itself!

Swapping cars is just a bit more interesting than daily single car. Just weighing up all options really.

Reality is that I think I will get DPF put back as should not be a total snail as 210bhp standard not too bad. Suppose was just hoping would not need to map down all improvements back from 250ish and all the extra torque.

I think was trying to figure out if remap options with keeping original DPFs existed for 159?

Sounds like the new MOTs really are tight on these cars on particulates as said earlier and by looking at what is quoted on V5.
 

Attachments

If you're that concerned, about it, speak to AHM, they also offer a remap without the DPF removal, granted it'll cost you, but not the ÂŁ700 the original owner paid, most of that price includes the bypass pipe and fitting.

You will notice a difference with the DPF fitted, but you can still run a remap with it on.

Also, before you have it re-fitted, either have it professionally cleaned out, or as I did, fill it full of cheap cola, let it sit for a few days and then jet wash it out - from the tail end though, you don't want to knacker the cat.
 
Lads,

I have just bought a 2010 2.0 Ti 159 and used AlfaOBD to check the % clogging for the DPF, and it showed "0.000%" clogging and would not change when driving either. Drove it home over 200 miles and did not notice a regen either "previous car was a 2009 Fiat Bravo 2.0Mjet 165 which would regen all the time with an exhaust note change, power drop, lots of smoke and increased fuel consumption...)

My real question is, does this mean the DPF has been gutted & mapped out if the values appear to show 0% clogging?

Thanks and all the best!
 
Hi guys, I'm new to the group, but this is an excellent thread, super helpful. I've just treated myself to a 159ti sportswagon. It has been remapped, but don't know anything about the remap unfortunately. Bags of turbo lag in low gears, 3rd and 4th are great. Looking to get it looked over, egr/dpf delete, maybe mapped again and stainless pipe system. Any recommendations near Herefordshire/Gloucestershire would be appreciated 👍
Thanks
 
161 - 180 of 180 Posts