AdBlue Flashing with 600 miles car shuts down

[mrrfn30]

Citroen C4 Picasso 66 reg. My cam belt was changed 2 months ago, since then the adblue issue started. First week the AdBlue light came in together with service light. Guy in the shop said it shows PAT fluid low on the trip computer screen. Added AdBlue and PAT fluid. Now the car does this every time I drive and stays on through the whole journey then disappear and reappear again once stationary. Has the cam belt change got any links to this issue at all or am I just going mad for no reason. any help? see the attached video! Sorry can't attach a video only pics.

[mickthemaverick]

Having topped up the additives did you go into the ECU to tell it the fluid was refilled?

[PaulC5]

Topping up adblue should not need a diagnostic but since you have warnings you need to check for fault codes. The PAT fluid does though. I can not see how a cam belt change could be the cause unless some wiring was damaged.

Our Cactus came up with a Urea message and emissions fault. It had fault codes P2201 and P16EA. We did not keep driving it so it did not start the mileage countdown before starting is prevented. It needed a new adblue injector and NOx sensor plus a section of exhaust as the sensor could not be removed. Cost was about £1600 at a dealer with most being for the exhaust parts. It included the diagnostic needed after replacing these parts.

[RichardW]

Needs a scan to see which bit is at fault.

Just put a new NOX sensor on our 2017 - luckily it came out easily, unlike Paul's!