Suffered DEF malfunction on my XUV700 just days after purchase

Is the XUV700 so delicate or the placement of the NOX sensor is so erroneous that it will feed tyre water splash from light rain from the road?

BHPian krishnadevjs recently shared this with other enthusiasts.

Just a few days of ownership and 160kms on the Odo, there is the E21 DEF dosing malfunction error.

Called Sireesh Auto and they said it could be because of the bumper to bumper traffic in Bangalore asked to drive for few kms on highway. Next day driving towards Mysore keeping a steady cruse control at 70kmph on the express way the error escalated to a E22 warning with a threat to shutdown in 800kms.

Immediately called India Garage in Mysore. The staff was very helpful and they diagnosed it to the Nox sensor issue. They said the issue is due to water ingress. This I doubt because the vehicle has not been driven on any water body. The normal rain splash from road should not cause any such issues. Anyway they cleaned it with a blower and put it back. The errors were cleared and I was good to go after a test ride of 30kms.
Next 28hrs the vehicle drove flawlessly. Also got to see a Tusker on the way to Kodagu

Now driving back to Bangalore, after a fuel fill near home the DEF tell-tale turned on again.

Took it to Ananth Cars on Bannerghatta road. The car is now at 826Kms and the alert for 1st service came On as well. So gave it for error check and service.
The team has been trying to diagnose the issue for last 24hrs. They also mention water ingress in Nox could be the issue. I dont believe this explaination as I was careful after the first diagnostic and wanted to reach back to Bangalore without any issues.

While the car was sitting lifted up do notice the placement of the NOX sensor around 1.5 feet behind the front right wheel. Also I notice rusting on two clamps on both sides. These clamps are in the front below the door level. I understand it can be used for jack.


Although the underbody is covered with Anti rust treatment from factory, the two clamps are missed out. I am sure this will be the case with other XUVs as well.

Will bring in more updates of the resolution....

Question: Is the XUV700 so delicate or the placement of NOX sensor is so erroneous that it will feed tyre water splash from light rain from the road?
What is the water wading capacity of XUV700? The way the service center folks talk about it, it seems to be less than 190mm.

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