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Discussion Starter · #1 ·
Hi everyone,

I've got a problem with a 2015 SD4 Pure Tech Automatic - two common issues but I have another question as well.
It's done 21000 miles since new, so not used much.

I have the common issue of the low battery "display will shut off" as soon as the ignition is off and the stop start has never worked - not essential. In terms of needing a new battery/having this battery calibrated by a specialist, which route is the one to go down?

Also, a few months ago the car went into 2WD with the reduced traction error message. It went away for a few weeks but is now back every time it goes over 20mph for the first time on a journey. What is the result of this, am I looking at a new Haldex pump (oil filter etc) because of the mileage and lack of use or is it more along the lines of a software update, with winter coming I want this sorted.
In terms of the 4WD system, as the car is a 2015, I have had differing opinions as to whether it is a Haldex system or an GKN driveline system, could someone more knowledgable direct me on this please?

Thanks in advance
 

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MY15 2.2L
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3,170 Posts
Hi, welcome to the forum.
I would sort out the battery before getting the Haldex side of things looked at. A low battery is known to throw up this warning so I would see if the battery sorts things!

I also have a MY15 on it's original battery. Doing low miles and with the lockdown etc. I've also had battery warnings.

I've recently bought a CTEK charger:
CTEK MXS 5.0 Fully Automatic Battery Charger (Charges, Maintains and Reconditions Car and Motorcycle Batteries) 12V, 5 Amp - UK Plug: Amazon.co.uk: Car & Motorbike

For me, I'm no longer seeing battery warnings. I always turn off stop/start but knew this had given up, but after charging I tested this and found it was working again!

Like yours my battery is past its best so I'll be getting a new one if I see more issues - but having the 'smart charger' with another lockdown coming will hopefully help me keep going.

Searching the forum you'll see lots of threads on battery replacement - it's not a very clear picture!

When I replace mine I'll make sure the BMS (battery monitoring system) is reset.
Others haven't done this and don't appear to have been caught out. A LR tech did join a while back and said it must be done.
Over on the DS forum they mention driving for 40 minutes after replacing to avoid a BMS reset as the vehicle will calibrate.
They also talk about buying replacement BMS kit that sits on the battery terminal for around £30 which again avoids having a garage reset things.
 
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MY15 2.2L
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That's great, thanks for that!
I was just wary about the horror stories of frying the infotainment etc. with using battery chargers on more modern cars.
Same, that's why I bought the CTEK! :)

On the earth side, best to use a nearby bolt rather than the battery terminal direct. CTEK mention this.
I guess it's so the BMS gets involved?
 

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MY14 Jaguar F Type 3.0S Convertible
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It should be ok as long as it says it's OK to use on AGM batteries if that's what your car has.
 
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