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P20E8 fault code and urea tank

787K views 906 replies 137 participants last post by  noddy-hol 
#1 ·
I am looking for some advice on how to proceed after my local Peugeot dealer investigated the "UREA : Emission fault warning message" and revealed fault code P20E8 00.

They topped up the urea tank (although the dash message still showed more than 1500 miles remaining) and cleared the fault. They said that if the fault message returns I will need a complete new urea tank costing over £1,000 !!

Guess what, 5 miles later the message returned. I went back to the dealer, but no joy. They believe the fault means the pressure of the urea fluid is too low, which means a new complete tank. The car is a Sept 2014 2.0 Bluehdi 150, and so is only a few months out of warranty. It has had all the recalls undertaken including the urea wiring loom.

So, what could be the causes of low pressure. A hole in the tank ? A faulty pump ? A blocked atomiser nozzle ? Are any of these fixable without replacing the entire unit ?

Would any of you know of a specialist who could look at this....other than one of the main dealers ?

Any help and advice would be very welcome. Thanks.
 
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#401 ·
Picked my motor up from Pug today, they did the coding and reset all faults for £50, even gave me a print out of the diagnostics clean bill. I am happy with Pug today.

I drove 8 miles and the P20E8 fault came back :cry: I've turned it off with my cheap code reader but am waiting for the 700 mile countdown to come back.

It is possible the part I purchased used from a 2019 Combo is past it's best, it did say DOM 08-03-19 though so I would be surprised.

Any ideas please?

I'll pull the tank off for a 3rd time and check the electrical connection points and plugs security of attachment.
 
#402 ·
Well hopefully my final post on this subject for a while...
I reset the light, didn't drop the tank again and it hasn't come back. I guess the replacement part caused an air lock and it triggered the light. So far so good.

Cheers Jas1234 for the idea.

If you want to save £1000 I would recommend giving this a go yourself.
My repair bill was £240.
 
#409 ·
Ref image it wants a web address.

Your new cap may be blocked, mine was I removed the O ring and can now suck and blow through it.

I put up my part no earlier on this thread, think it's same as yours.

I think the pumps from:
Berlingo
Crossland X
Peugeot Partner
Vauxhall Combo
Possibly others

Share the same number as mine.
 
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