Emissions fault!!!

Engine, Exhaust, Drivetrain, ECU
marios
Posts: 5
Joined: Wed Jun 06, 2018 8:45 am

Re: Emissions fault!!!

Post by marios » Wed Jun 06, 2018 9:12 am

well I can add my 2c : my neighbor had his urea tank replaced twice (still under warranty). same warnings as you. ECU error is P20E8.
now I just got out of warranty ( 3.3 years old C4GP with similar Cactus urea system) and same error jumped too.
I am going to disassemble the tank to parts to see what happened. the tank seems intact. no urea leak whatsoever.
my hunch: technical failure of the injector/pump .
will keep you posted since it seems to spread...


marios
Posts: 5
Joined: Wed Jun 06, 2018 8:45 am

Re: Emissions fault!!!

Post by marios » Wed Jun 06, 2018 1:24 pm

ok. updating: since C4 Picasso II line and C4 Cactus (September 2014+) share same urea tank I dived deeper into autodata and other documents.
there seems to be a change in the tank recently.
if your (1.6Hdi) cactus is using old AdBlue tank (part 9808378080) :my suspicion is it is doomed to fail prematurely.
you will need the new AdBlue tank which includes the new pump module and its part number is: 9818559280.
you can easily identify your AdBlue tank version by looking under the car ( I did it : took one minute to find the number). the number is on the visible side of the tank (not to far away from the rear right wheel).


marios
Posts: 5
Joined: Wed Jun 06, 2018 8:45 am

Re: Emissions fault!!!

Post by marios » Thu Jun 07, 2018 9:15 am

the new cactus AdBlue tank part number is 9812914780


blackcountrycactus
Posts: 97
Joined: Sat Jan 06, 2018 10:40 pm

Re: Emissions fault!!!

Post by blackcountrycactus » Fri Jun 08, 2018 4:40 pm

Would this be the one that’s okay ,ours is a 05/16

B5E63736-5CF3-4B13-A85B-9DFCD8A45375.jpeg



marios
Posts: 5
Joined: Wed Jun 06, 2018 8:45 am

Re: Emissions fault!!!

Post by marios » Sun Jun 10, 2018 10:18 am

so I think 9812914780 is the new tank model
and 9818703780 is the old tank. but Citroen doc is really confusing and not releasing too much info.
can you verify with your dealer ? there are minor differences between the two.


blackcountrycactus
Posts: 97
Joined: Sat Jan 06, 2018 10:40 pm

Re: Emissions fault!!!

Post by blackcountrycactus » Sun Jun 10, 2018 6:18 pm

Hi marios,so were did the number 9818559280 come from ,would citroen just update it every couple of years,must say our cactus runs super smooth atm just done 800miles from west midlands to portsmouth then around Normandy,really comfortable,even today in Worcester with aircon on ,keeps cabin cool and is quite quiet with it on,less than a year left on warrenty and we want to keep it ,but don't want any expensive repairs.


marios
Posts: 5
Joined: Wed Jun 06, 2018 8:45 am

Re: Emissions fault!!!

Post by marios » Mon Jun 11, 2018 4:47 pm

k. so the C4GP tank has different size than Cactus but uses same pump/level detector/injector
so 9818559280/9808378080 is for the C4GP.
9812914780/9818703780 for cactus
the problem here is a manufacturer will not change the part unless it think there is a reason.
regarding the tank: it supposed to sustain 6bar pressure since it designed to work in some vacuum.
its very easy to test the tank is sealed . not high tech gear. every garage has the tool.
and yes, the fact that it is plastic makes it vulnerable to deformation (from hot asphalt).


blackcountrycactus
Posts: 97
Joined: Sat Jan 06, 2018 10:40 pm

Re: Emissions fault!!!

Post by blackcountrycactus » Mon Jun 11, 2018 6:15 pm

That sounds like the old freelander 1,if the head gasket ain't gone we ain't fixing it,yet it was a design fault from the outset,doubt any of them never had head gasket done,hope citroen can do better


hulke
Posts: 13
Joined: Sat Jul 09, 2016 2:12 pm

Re: Emissions fault!!!

Post by hulke » Fri Jul 20, 2018 8:10 pm

i´ve been a happy owner of 3 year old cactus bluehdi flair until last recall, my cactus will die in 1.100 km due to emissions fault. Citroen dealer cannot diagnose the problem.


blackcountrycactus
Posts: 97
Joined: Sat Jan 06, 2018 10:40 pm

Re: Emissions fault!!!

Post by blackcountrycactus » Fri Jul 20, 2018 9:37 pm

Try another dealer im sure a good one will find it easy


Post Reply

Return to “Engine and Drivetrain”