I had my RRS off the road for a few weeks over xmas while I was awaiting a new DPF.
Since it was off the road it's been a nightmare to start and won't turn over.
I've replaced the main better but cannot find the auxiliary battery to replace it... I've had a look in the boot in the rear right compartment with all the other electrics, but it's not there?
It's a 7 seater version and am wondering if someone can point me in the right direction of the Aux battery??

Also is the Aux easy to source?

Thanks in advance!

what year is your RRS

my friends vouge has the aux battery under the window scuttle below front window

Hi... 2016!

Thanks.... I've checked under the window and it's not there either!

other place could be under the passenger footwear below the fuse box

Hello,

I do not think the model you have has an auxiliary battery. These were fitted to to MY2014 to MY2015 models. As they were mainly used for the Stop/Start process, the later models (like yours) had a capacitor installed I believe. This was then located on the right hand side of the boot (where the auxiliary battery would have been fitted). "Every Day is a School Day"

Now 2014MY RRS SDV6 AB
Now 2018MY Ford Fiesta ST Line 140bhp
Gone 2006MY BMW X5 3.0d Le Mans
Gone 2001MY BMW 530d Estate

Have you tried putting the battery’s on charge? I put mine on a CTEC charger every now and again and the stop start works again. It also reconditions the battery’s and tells you if they are kaput. I do this by using the terminals under the bonnet and does take a few hours to charge up fully but it does charge the main battery and the aux battery too.

Thanks... that may be the case with the capacitor.
Does anyone have a picture of this?

Also, great idea with charging the battery with the terminals under the bonnet. I'll give that a try too.

So, if my model only has a capacitor rather than an aux and the new battery isn't starting the car correctly... it powers up the dash for a short period sometimes starts and other times either just hear the starter ticking and then dies! I have it booked in with an auto electrics garage on the 1st to explore but thought I'd ask if anyone had similar experience???