ewhizz

Start/Stop not working!

Recommended Posts

Hi, I have a 2017 Jaguar XF 2.0d automatic but no matter how I stop this car, whether in neutral or in park, the start/stop function doesn't work.

Any ideas?

Share this post


Link to post
Share on other sites

The start stop function on any car is reliant on the main engine battery being completely charged, so if it is not working i would charge it and test again or have the battery condition checked. You might find the battery is getting weak.. 

Share this post


Link to post
Share on other sites

When I got my 2015 XF the stop/start did not work. I took it back to the dealer and they rectified the problem. It wasnt  a problem with the main battery as this was new when I bought the car.  The dealer replaced something called a gateway so you will need to take it into a jag specialist or dealer to get it rectified.  I dont know what this will  cost though as I had my work done under warranty - being a jag it wont be cheap!    Personally I dont like the stop/start function and I always turn mine off.   Keep us posted on how you get on.  Good luck.

Share this post


Link to post
Share on other sites

Mines under warranty too. If it's supposed to work then I would prefer to have it fixed even if I don't use it.

Thanks for the reply

Share this post


Link to post
Share on other sites

Hi Ian ,

Had the same problem with my 2.0D XF R sport.

Found i could charge the battery on lihgt charge for 24hrs, and start stop would work for a few days and then stop again.

i would then repeat the charging process and the same would happen again!

i then decided to check the alternator output, !  14.8 volts no load,and remaining at 14.8 volts fully loaded. (no fault here then)

Concluded it must be a tired battery! (coming up for 4 years old and 130,000 miles) , have changed the battery and the car is now working as it should.

There are numerous posts regarding stop start problems, most sorted with a battery change.

Its allso worth mentioning that the car started faultlessly with the old battery , and no other noticeable faults.

Could be worth getting a load test at local battery supplier., good luck.

John.

Share this post


Link to post
Share on other sites

My XF is the same start/stop has never worked, the dealer checked the charge in the Battery and it was only 75% and they said it needs to be at least 85% for the start/Stop to work and they left it at that.

So i've kept at them to get it sorted, so i can't wait for Monday the 9th of December to come and they want the car over night to charge the battery and then we'll see what they say because i think they are not wanting to fit a new one and i can see why having looked at the Cost off these AGM Batteries.

I've a friend with an XE and he had to get a new battery and his start/Stop work's perfectly even within 2 or 3 minutes of leaving his house.

Regards Tom.

Share this post


Link to post
Share on other sites

I drove the car into the Ford garage on Monday and left it with with them as they were going to charge the battery overnight, well i get a phone call on Tuesday

saying that the Start/Stop is still not working.

I left the car with them for another day as the weather was horrendous 4 lorries getting blown over and one landing on a police car on the A1 road.

So i get a phone call on the Wednesday and telling me that they've fitted a New Battery with a rating of  95AH  850A compared to the Jaguar battery with a rating  of 80AH  800A

and everything is working at the moment.

Regards Tom.

 

Share this post


Link to post
Share on other sites

Hi All,

New to this forum and have just got my first jag. Had a merc before and must say glad I got the XF.

I have had the issue with the start/stop since i got the car and the dealer mentioned the possibility of a  faulty battery.  They have replaced it since then with a 95Ah   850A. They said that the secondary smaller battery was only 75% charged and therefore they had charged it further. Since then I took it for a very long run and still the start/stop doesnt work.☹️

Looks like a return visit to the dealer.  I have read suggestions of resetting the ECU/CPU by removing the -ve terminal and touching it to the +ve.

Has anyone tried this suggestions?

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...