Colsy

Dino. I have a 2013 Jaguar XF. The stop/start worked ok for about six months but then did not cut out. I took it back and the dealer said that as I was only making local journies the batteries were not being charged sufficiently for the stop/start to kick in. They kept my car overnight for a trickle charge and that worked for about two days. As a service was due in a couple of months it suited me to raise the matter then but it was not to be. The battery was totally flat one day and I had to call out Jaguar Assistance. The technician was excellent and did a check with a piece of equipment that showed that the battery itself was faulty and gave me a certificate with the fault confirmation code to give to the dealer. Battery replaced under warranty and worked perfectly ever since. Hope this is of help.

Rick, did you ever resolve the problem with the black plastic tray as I have the same problem with a full size 19" wheel.

First post. Regarding Eco stop start. Mine stopped working a few months back and the local dealer diagnosed that as I was only doing 'local mileage' the there wasn't sufficient in the battery to activate it. Kept the car overnight to put on a trickle charge and it worked for about two days before again not functioning. I decided to bear with it and raise it at the next service. Overtaken by events as came out to a flat battery one day and had to call Jaguar Assistance. Excellent mechanic, his first test with his equipment showed that the battery was fully charged which it obviously wasn't and he said to wait and retest after ten minutes. This time it displayed faulty battery and he contacted the local dealer with a 'fault code' and the battery was replaced under the warranty that same day. Done the trick and working every time now. I suspect if I had returned it to the dealer I would have received the same advice as initially provided.