Vauxhall Vivaro / Renault Trafic 1.6 dCi xx Miles Failure Anti Pollution

Vauxhall Vivaro / Renault Trafic 1.6 dCi

Count down on dash:

xx Miles Failure Anti Pollution

(This post is NOT applicable to the other very common problem on these vans: “Top up AdBlue” on the dash.)

xx Miles Failure Anti Pollution is a very common problem on these vehicles: the 1.6-engined Vauxhall Vivaro and Renault Trafic. The countdown may still be ticking down, or it may have reached zero miles, in which case the van will be in a ‘no start’ state.

This is a very frustrating situation indeed.

Often, no fault codes are stored – seemingly making life even more difficult for those attempting to fix the fault!

In our experience, the following process works:

• Fault codes. Simple. Any faults present have to be dealt with. End of. P20EE – the most common culprit needs to be dealt with. Any other fault codes within the AdBlue and Engine Management systems will need to be dealt with for a fix.
• In the event of no fault codes being present, data needs to be analysed to determine whether the van is running with a fault or is running fault-free. NOX Sensors for example, can give incorrect readings but not set a fault code. Carry out any repairs necessary to enable the van to be running as it was designed – 100% in a fault-free state. We will often data log and road test for an hour to get absolutely nailed on data we can trust to assess and analyse. If you’re city-based like us and it takes half an hour to get to a dual carriageway/motorway, be prepared not to trust the data until you’re on that road, cruising at 60mph, everything is bang right up to temperature, singing and dancing and the wind is rushing through your hair.
• You’ve now got the van running in a fault-free state. There is a chance the warning may extinguish on its own during an extended road test. Where is the ‘sweet spot’ of the number of miles needed to be covered? Extremely good question. Trickier to answer. The vans where this has been successful have generally needed 3 drive cycles; At least one of them quite ‘spirited’. Mileages required: not enormous, actually. First one fairly substantial: 20 – 30 miles, then a shorter, more spirited, local drive the next day. When starting the vehicle for the 3^rd time, the warning disappeared almost immediately.
• So, the warning didn’t extinguish using the above step? Update software to PCM and Dosing Control Module if updates are available. As per the above step, this may work, but is not guaranteed. It’s belts and braces – crossing the T’s, dotting the I’s. Doing the right thing.
• Still no joy? Replace the Urea Dosing Control Module. Code to the vehicle as required.

Need help fixing your Vauxhall Vivaro or Renault Trafic?

Give us a ring today on 020 8965 5014, contact us online, or pop in to discuss what we can do for you!

Contact Us Online »