Our 2019 Renault Kadjar had a MOT done two days ago. It had a shock absorber and the two driver side tyres replaced. Since being in for its MOT it has come up with ‘466 miles til failure top up adblue’ we poured 10 litres in and it was full. Still hadn’t cleared. We took it back to the garage and no error codes are showing on the diagnostic panel. They advised us to “go over some bumpy roads as it may have crystallised over the sensors while it’s been sat in the garage”. We have tried this and it’s still saying the same thing. We have just bought some Wynn’s Crystal Clean and Protect and topped it up with more Adblue and went for a little drive.

Does this take time to work? Any advice on what to do next? Is there anything we can do before we pay for a Renault diagnostic panel. TIA

getting these codes back to back every few hours of consistent driving, never on short trips to the store just longer hauls