C3 Picasso 1.6hdi MOT Emissions fail....
Moderator: RichardW
-
- Posts: 18
- Joined: 13 Jan 2021, 09:21
- Location: Lincolnshire
- My Cars: 2010 C3 Picasso 1.6hdi Exclusive 121k miles
- x 1
Re: C3 Picasso 1.6hdi MOT Emissions fail....
Having done some investigation, I'm thinking of splitting the dpf/cat, taking the DPF off and giving it a clean! I take it the DPF is the lower part and looks to be relatively eaisly to drop out. Then using dpf cleaner and jet washing it!
Could a DPF cause this fault...?
Could a DPF cause this fault...?
- mickthemaverick
- Donor 2024
- Posts: 13646
- Joined: 11 May 2019, 17:56
- Location: Hertford
- My Cars: 70+ former cars (list available) including 11 Citroens, 3 Renaults
Current cars: 2004 Subaru Legacy 2.5 SEn, 1994 Mazda MX3 - x 6058
Re: C3 Picasso 1.6hdi MOT Emissions fail....
My friend had similar issues on her 1.6HDi C4 Picasso and I removed the dpf, soaked it in brick acid for 90 minutes and then back flushed, forward flushed and back flushed again. Re-assembled and no trouble ever since. The only thing I would advise is to protect the radiator matrix while you are working. it is vulnerable to a slip, at least it was on the C4 Picasso!! The whole job cost her £12 for the brick acid and me £85 for a replacement radiator!!
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
- GiveMeABreak
- Forum Admin Team
- Posts: 37323
- Joined: 15 Sep 2015, 19:38
- Location: West Wales
- My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5721
Re: C3 Picasso 1.6hdi MOT Emissions fail....
I would be very careful with pressure washing these as the fixing cement that holds the honeycombed filter in place can easily be broken if not careful.
I would use a proper DPF cleaner - Halfords even have 2 levels of DPF cleaning services these days - a light clean and a deep clean. Might be worth giving them a ring.
A Maintenance Clean is £35
A deep clean is £85
https://www.halfords.com/car-repairs/ad ... ntres.html
I would use a proper DPF cleaner - Halfords even have 2 levels of DPF cleaning services these days - a light clean and a deep clean. Might be worth giving them a ring.
A Maintenance Clean is £35
A deep clean is £85
https://www.halfords.com/car-repairs/ad ... ntres.html
Please Don't PM Me For Technical Help
Marc
Marc
-
- Forum Treasurer
- Posts: 10871
- Joined: 07 Aug 2002, 17:12
- Location: United Kingdom
- My Cars: MK2 '17 C4GP 1.6 BlueHDi 120
'13 3008 1.6 HDi GripControl - x 996
Re: C3 Picasso 1.6hdi MOT Emissions fail....
Acid clean appears to be best
DPF cleaner is, er, not very good!!
DPF cleaner is, er, not very good!!
Richard W
- mickthemaverick
- Donor 2024
- Posts: 13646
- Joined: 11 May 2019, 17:56
- Location: Hertford
- My Cars: 70+ former cars (list available) including 11 Citroens, 3 Renaults
Current cars: 2004 Subaru Legacy 2.5 SEn, 1994 Mazda MX3 - x 6058
Re: C3 Picasso 1.6hdi MOT Emissions fail....
Two useful videos there Richard. I certainly found that the acid bath, I actually carried out the job in an old baby bath, worked brilliantly. I also found using a large poly bag to collect the used liquid for disposal worked well for me. I actually used a vacuum seal bag meant for storing blankets etc. You must be sure to flush the unit fully until you have crystal clear water coming out, and as Marc says do not use the jet wash just a normal hose to fill each time. Lastly as Steve pointed out drying it out is necessary and I used the hot air gun on medium heat for 25 minutes or so.
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
- Paul-R
- Donor 2023
- Posts: 6930
- Joined: 07 May 2009, 16:24
- Location: Wirral, NW England; Vaucluse 84, France
- Lexia Available: Yes
- My Cars: 2015 1.6 Blue HDi 120 Peugeot 308 Active SW
2013 2.0 HDi 163 C5 Exclusive Tourer
2003 2.0 HDi 110 C5 Exclusive Estate (Gone)
2001 2.0 HDi 90 Xsara Estate (Gone) - x 1378
Re: C3 Picasso 1.6hdi MOT Emissions fail....
Brick acid is hydrochloric acid.
I use some fairly concentrated stuff (23%) in France to adjust the pH in the swimming pool. You can buy the stuff in ordinary supermarkets over there and I have seen it in 1l, 5l and 10l plastic bottles/cans. I've even brought back a couple of 5l cans to the UK over the years, not sure if this will be permitted now so I'm conserving the use of them.
I use some fairly concentrated stuff (23%) in France to adjust the pH in the swimming pool. You can buy the stuff in ordinary supermarkets over there and I have seen it in 1l, 5l and 10l plastic bottles/cans. I've even brought back a couple of 5l cans to the UK over the years, not sure if this will be permitted now so I'm conserving the use of them.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
-
- Donor 2023
- Posts: 13743
- Joined: 01 Apr 2012, 09:47
- Location: Reading
- My Cars: C5 Mk2 VTX+ estate.
- x 3007
Re: C3 Picasso 1.6hdi MOT Emissions fail....
A very long time ago I used to work making PCB circuit boards. The electro plating line used all sorts of chemicals, including 30% hydrochloric acid. Once it goes over 32% hydrochloric acid goes gaseous, so nasty stuff.
James
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
Ex C5 2.0HDi VTR
C5 2.2HDi VTX+
Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
Ex C5 2.0HDi VTR
C5 2.2HDi VTX+
Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
- mickthemaverick
- Donor 2024
- Posts: 13646
- Joined: 11 May 2019, 17:56
- Location: Hertford
- My Cars: 70+ former cars (list available) including 11 Citroens, 3 Renaults
Current cars: 2004 Subaru Legacy 2.5 SEn, 1994 Mazda MX3 - x 6058
Re: C3 Picasso 1.6hdi MOT Emissions fail....
A very good point James. That is why I used brick acid which is an effective but safe concentration of hydrochloric acid making it readily available in Wickes or B&Q or similar, other retailers are available. Works fine with a decent soak!!
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
-
- Posts: 18
- Joined: 13 Jan 2021, 09:21
- Location: Lincolnshire
- My Cars: 2010 C3 Picasso 1.6hdi Exclusive 121k miles
- x 1
Re: C3 Picasso 1.6hdi MOT Emissions fail....
Is the emission fail actually down to soot particles and therefor down to the DPF?
Only reason why I'm asking as the car has no dash fault light, starts 1st time, pulls like a train and averages about 55 to 60mpg!
I would have thought an emissions fail would mean some serious faults with dpf or am I missing something..?
Could the fail be anything other than dpf, as I can get a new dpf for £150 with new brackets, from Cats2U, so was thinking of just changing it!
Obviously don't want to do this if the emissions fail still exists....!
Is there any indications like dpf differential pressure that will say yeah or neah....!
I know I'm clutching at straws and thank you for all your assistance.
Only reason why I'm asking as the car has no dash fault light, starts 1st time, pulls like a train and averages about 55 to 60mpg!
I would have thought an emissions fail would mean some serious faults with dpf or am I missing something..?
Could the fail be anything other than dpf, as I can get a new dpf for £150 with new brackets, from Cats2U, so was thinking of just changing it!
Obviously don't want to do this if the emissions fail still exists....!
Is there any indications like dpf differential pressure that will say yeah or neah....!
I know I'm clutching at straws and thank you for all your assistance.
- GiveMeABreak
- Forum Admin Team
- Posts: 37323
- Joined: 15 Sep 2015, 19:38
- Location: West Wales
- My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5721
Re: C3 Picasso 1.6hdi MOT Emissions fail....
There can be problems with the internals of the filter itself - if this has become damaged or cracked then it won't be working as it should and may fail.
The filters on these are usually checked at 100k miles for blockage and thereafter at every 12.5k intervals.
I would check your injectors seals and make sure these are torqued correctly, make sure the EGR valve isn't stuck (although it does have a self-checking mechanism), but in all honesty it may just be that your DPF is damaged and changing it may be the answer.
Have a read on this thread - a chap with a Ford 1.6 TDCI which is probably the same or similar variant of the engine - after all the ums and ahs and maybes, he just changed the DPF and problem was solved.
https://www.fordownersclub.com/forums/t ... /#comments
The filters on these are usually checked at 100k miles for blockage and thereafter at every 12.5k intervals.
I would check your injectors seals and make sure these are torqued correctly, make sure the EGR valve isn't stuck (although it does have a self-checking mechanism), but in all honesty it may just be that your DPF is damaged and changing it may be the answer.
Have a read on this thread - a chap with a Ford 1.6 TDCI which is probably the same or similar variant of the engine - after all the ums and ahs and maybes, he just changed the DPF and problem was solved.
https://www.fordownersclub.com/forums/t ... /#comments
Please Don't PM Me For Technical Help
Marc
Marc
- osx
- (Donor 2022)
- Posts: 761
- Joined: 08 Jun 2013, 20:09
- Location: Oxford
- Lexia Available: Yes
- My Cars: GSA X
BX 1.6
C5 X7 Auto
C5 X7x2 Manual - x 15
Re: C3 Picasso 1.6hdi MOT Emissions fail....
It is not fixed. It could have been removed each time.sadssandiford wrote: ↑15 Jan 2021, 08:22 If it was it would have to have been blanked for at least the last 5 years by the original owner. If you look back at the historical mot emissions, I can't see how they could be so low on some of the years tests...!
C5 X7 Exclusive 2.0 HDi Auto
C5 X7 Exclusive 2.0 HDi Manual
C5 X7 Exclusive 2.0 HDi Manual
-
- Posts: 18
- Joined: 13 Jan 2021, 09:21
- Location: Lincolnshire
- My Cars: 2010 C3 Picasso 1.6hdi Exclusive 121k miles
- x 1
Re: C3 Picasso 1.6hdi MOT Emissions fail....
You misunderstand, I've owned the car for the shown MOTs! So I would have to fit n remove the blanking plate, which obviously I havent done....
-
- Posts: 18
- Joined: 13 Jan 2021, 09:21
- Location: Lincolnshire
- My Cars: 2010 C3 Picasso 1.6hdi Exclusive 121k miles
- x 1
Re: C3 Picasso 1.6hdi MOT Emissions fail....
Just been in contact with Engine Carbon Management in Sleaford, LINCS. Explained the MOT fail and they said they'd seen this alot and give a money back gtee. They run a hydrogen based cleaned through the engine, takes about an hour, and guarantee that with no dash warning lights if it fails MOT on emissions after, they give a full refund! Costs £70. So I'm gonna try that and get back with results on Thur
- myglaren
- Forum Admin Team
- Posts: 25459
- Joined: 02 Mar 2008, 13:30
- Location: Washington
- My Cars: Mazda 6
Ooops.
Previously:
2009 Honda Civic :(
C5, C5, Xantia, BX, GS, Visa.
R4, R11TXE, R14, R30TX - x 4917
Re: C3 Picasso 1.6hdi MOT Emissions fail....
I worked with someone who was very much into cars and rallying who praised that.
-
- Posts: 18
- Joined: 13 Jan 2021, 09:21
- Location: Lincolnshire
- My Cars: 2010 C3 Picasso 1.6hdi Exclusive 121k miles
- x 1
Re: C3 Picasso 1.6hdi MOT Emissions fail....
On my 2010 C3 Picasso, I take it any dpf fluid low or dpf problem will be indicated by the yellow engine warning light and service light illuminating...?