C3 Aircross recall HTM

Faults and Technical chat for the Citroen Aircross
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JFS Dorset
Posts: 41
Joined: Thu Jul 16, 2020 5:27 pm

Post by JFS Dorset »

Anyone else had a recall letter re HTM Engine Management Software update for C3 Aircross. Luckily I have my car booked in 28 Sep for tyres so they can do it then. They need the car all day!
C3 Aircross 2019 with feel spec in silver and black. Previous car Citroen C5 Petrol VTR

startv
Posts: 13
Joined: Mon Mar 15, 2021 11:33 pm

Post by startv »

Yes I received letter today also.

It mentions something about issues with NOX levels when driving on low fuel.

I may be wrong but thought NOX levels were more related to Diesel engines and not petrol or does it affect both? Mines a petrol engine and have received letter.

I'm like you got mine booked in for its first MOT and service next month anyway so they should hopefully do it then, but have contacted them to make sure.
Last edited by startv on Thu Sep 09, 2021 10:25 am, edited 1 time in total.
routemaster1
Posts: 365
Joined: Wed Mar 27, 2019 7:57 pm

Post by routemaster1 »

NOX is produced in petrol and diesel engines. Diesel produces more and has to have exraa mitigation. For most manufacturers that is the Adblue system.
startv
Posts: 13
Joined: Mon Mar 15, 2021 11:33 pm

Post by startv »

Oh I see so can affect both. Thanks for explaining 👍
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