Peugeot 5008 Emissions fault 700 miles before self destruct

[Faz-n8om6]

Got the dreaded message on my diesel Peug 5008 a month ago.

I’d topped up the adblue a few months ago and then added another 10litres when this message came up. I ran it in 3rd gear up and down a dual carriageway. Fault persisted. I took it to a garage where they checked it with a code reader. Couldn’t find anything. I asked them if the injector was blocked with urea but they said that it was pulsing correctly.

They reset the software and everything was fine for 2 weeks. Now it’s come back on again. Exactly as before.

Any thoughts what I should do next? Recoding to remove this over £300 and will require removal of the computer to be sent away I think.

[sherman]

Time to take it to the main dealer.
If you get to zero you will knacker your engine.
Wont matter if theres adblu in the tank or not. Itf the computer thinks it has none. It wont leet it start.

[Steve H]

Nothing is going to knacker your engine but it will go to non-start if you just keep driving.

The choices with Adblue issues are simple, either fix it per the manufacturers spec, or get rid of the system.

Getting rid is most often cheaper and saves you from future issues but of course you are not supposed to do it so it becomes a question of what the owner is comfortable doing.

The removal or disabling of any emissions control component is an MoT fail but that’s if they are aware of it, which as things stand the tester would not be.

I wouldn’t expect that car to need the ecu sending away, it will most likely be doable so it’s in/out on one day.


A "proper" fix is likely to be as or significantly more expensive, most sensors start in the low to mid hundreds and if you are getting into pumps and tanks then that can go north of a grand with ease. But it would be fully compliant.

[bobthemonkey]

Are you using generic ad-blu or the Pug branded stuff? Other manufacturers ( JLR) have reports of sensors doing funny stuff with the generic fluid.

[Faz-n8om6]

Thanks Steve. v helpful.

Thanks bobthemonkey. I didn’t know that! Yet another excuse to whack up the price…..it’s speshul adblue!

[Steve H]

I think the quality issue is more relevant to JLR tat than French stuff, most decent branded AdBlue should be fine.

[Faz-n8om6]

Thanks Steve. v helpful.

Thanks bobthemonkey. I didn’t know that! Yet another excuse to whack up the price…..it’s speshul adblue!

[Richard-D]

Your initial description makes it sound like you may have overfilled the tank. Some cars throw a hissy fit at this and need partial drain and reset of level sensor.

[Steve H]

Overfilling is another JLR issue that most manufacturers cope fine with. I honestly don’t think there is a process on those cars that they can’t make unreliable .