words fail me!

Audio, Navigation, Electronic Faults and Fixes
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PhilB
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Re: words fail me!

Post by PhilB » Tue Jan 15, 2019 7:17 am

Repairman wrote:
Tue Jan 15, 2019 7:08 am
Only think I have noticed is that climate control was turned off, so maybe that is part of answer, car not designed to work properly when climate control on.
That's one of the common reasons why stop/start won't work.

"Demand from the climate control system requires the engine to be running, e.g., when in defrost mode."
I would suggest "demand" would probably include the climate control working to reach the set/required temperatures too.
2019 Evoque P300 HSE, Carpathian Grey.
2017 XE S 380, Carpathian grey.
2015 XE S 340, British Racing Green.

Deleted User 4390

Re: words fail me!

Post by Deleted User 4390 » Tue Jan 15, 2019 7:41 am

I can't believe all the required conditions for S/S to kick in (part 9).

My start procedure on the F-Type is ignition on, dynamic mode on, seat belt on, S/S off and away we go. If we end up getting an XE over the coming months then S/S will be off anyway but understand people who want it to work.

The other thing for diesel owners is oil temp. I don't know if the XE displays oil temperature (F-Type doesn't) but if your only doing 30min / 15 mile journey in cold conditions with climate control on then I doubt S/S would kick in anyway.

Double lock and keeping keys more than 5m away is also important as drain is more than double when compared to when car is asleep and shutdown.

Kind of a never ending thread. However if someone has a fault reader and S/S not working then if it is battery related a fault code would be logged. I have all fault codes in the manual.

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PhilB
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Re: words fail me!

Post by PhilB » Tue Jan 15, 2019 8:24 am

simpler wrote:
Tue Jan 15, 2019 7:41 am
I can't believe all the required conditions for S/S to kick in (part 9).
My start procedure on the F-Type is ignition on, dynamic mode on, seat belt on, S/S off and away we go. If we end up getting an XE over the coming months then S/S will be off anyway but understand people who want it to work.
Double lock and keeping keys more than 5m away is also important as drain is more than double when compared to when car is asleep and shutdown.
Kind of a never ending thread. However if someone has a fault reader and S/S not working then if it is battery related a fault code would be logged. I have all fault codes in the manual.
Luckily on the XE the S/S off and left hand arrow to engage dynamic are next to each other so I always stick two fingers up at mine on start up.
:mrgreen:
The double lock thing is important too.
Bloke on the F-Space forums had a very nice garage attached to his house and didn't believe in locking the car and couldn't understand why he had a dead battery after a couple of days. Was advised to double lock but he wouldn't have it.
:roll:

Yes, it's a never-ending subject and 55 pages worth on the Faults section is testimony to that.
The problem is there are so many reasons why it won't work anyway and throw in a flaky battery here and there and we see topic after topic on the subject.
If I didn't nag or lock up the odd topic here and there, we would just have topic after topic about it including ones that were nothing to do with it in the first place but morph into bloody stop start.
:lol:
2019 Evoque P300 HSE, Carpathian Grey.
2017 XE S 380, Carpathian grey.
2015 XE S 340, British Racing Green.

Deleted User 732

Re: words fail me!

Post by Deleted User 732 » Tue Jan 15, 2019 10:40 am

I temporarily fitted a CTek comfort indicator yesterday and charged the battery to full on both the indicator and the charger. This morning we went out shopping and my headlamps came on on auto with a couple of screen wipes. It wasn't particularly dark by any means so I didn't expect the lights on, nor was it raining. The journey was horrendous as for some reason the area was jammed up with cars. It was slow or stop nearly all the way. When we arrived I checked the comfort indicator and we only had less than 60% charge in the battery. There were too many systems running and not enough charge going into the battery. When we came out of the shop 40 mins later it showed it had recovered slightly to >80% and showing green in the centre not the orange on arrival. I am going to recharge the battery again today and if it happens again it's going in and the dealer can check it over. They were very good yesterday in the parts offering me a 90Ah battery at trade price. That worked out just less than Halfords by £4.

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147daytona
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Re: words fail me!

Post by 147daytona » Tue Jan 15, 2019 2:05 pm

Vespa, my comfort indicator shows orange probably 95% of the time and very rarely shows green but everything seems to work and run as it should.
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Deleted User 732

Re: words fail me!

Post by Deleted User 732 » Tue Jan 15, 2019 2:11 pm

147daytona wrote:
Tue Jan 15, 2019 2:05 pm
Vespa, my comfort indicator shows orange probably 95% of the time and very rarely shows green but everything seems to work and run as it should.
Thanks for that info as I was just, literally, going to go to the dealers to get a new battery. I think I will wait a bit longer and attck the plastic boot fitting tomorrow morning. I have other jobs on today as well.

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Nevyn
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Re: words fail me!

Post by Nevyn » Tue Jan 15, 2019 6:36 pm

Vespa wrote:
Tue Jan 15, 2019 10:40 am
When we arrived I checked the comfort indicator and we only had less than 60% charge in the battery. There were too many systems running and not enough charge going into the battery.
I've said before elsewhere, unlike older cars, our Euro 6 cars do not continuously charge the battery. The BMS manages the charge by varying the regulated voltage and will effectively turn off the alternator at times to reduce load on the engine, hence reducing fuel consumption and emissions (the real reason for doing so - Google smart alternators). When this happens the battery is suppling the power.

I would expect the alternator to have sufficient capacity to power everything though and the BMS to sense the load and adjust accordingly...

Where are you getting your 60% figure from? Is the comfort cable display accurate?
2016 180d Portfolio Auto. Ammonite Grey + Light Oyster. 19" Star 5 Twin-Spokes + lots of toys...
http://www.xeforums.co.uk/viewtopic.php?f=10&t=2888

Deleted User 732

Re: words fail me!

Post by Deleted User 732 » Tue Jan 15, 2019 9:26 pm

From the Ctek instructions regarding the 60% but also from them, leave the battery 30 mins to recover. That done it went to green and showed at least 80%. All very confusing with the activation of unnecessary of lighting and wipers without any moisture. Perhaps the car actually has a problem.

tsbjagman
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Re: words fail me!

Post by tsbjagman » Tue Jan 15, 2019 9:53 pm

Vespa wrote:
Tue Jan 15, 2019 10:40 am
I temporarily fitted a CTek comfort indicator yesterday and charged the battery to full on both the indicator and the charger. This morning we went out shopping and my headlamps came on on auto with a couple of screen wipes. It wasn't particularly dark by any means so I didn't expect the lights on, nor was it raining. The journey was horrendous as for some reason the area was jammed up with cars. It was slow or stop nearly all the way. When we arrived I checked the comfort indicator and we only had less than 60% charge in the battery. There were too many systems running and not enough charge going into the battery. When we came out of the shop 40 mins later it showed it had recovered slightly to >80% and showing green in the centre not the orange on arrival. I am going to recharge the battery again today and if it happens again it's going in and the dealer can check it over. They were very good yesterday in the parts offering me a 90Ah battery at trade price. That worked out just less than Halfords by £4.

As I only do low mileage per week I purchased a Ctek charger and Comfort indicator and as soon as I received them I connected the Comfort indicator and it displayed red although everything was working ok except the s/s.Today I put the battery on recon charge until everything indicated a full charge and comfort indicator was green. I went out for a 9 mile drive (it was dark so h/lights were on) when I returned home the indicator was amber which to me indicates the battery is not holding a charge but reading all the posts I now have my doubts.
XE Prestige 20t 2015 Glacier White.

PaulC

Re: words fail me!

Post by PaulC » Wed Jan 16, 2019 9:27 am

I think there may be some marketing gimmick going on with those comfort indicators (you buy one, see that it's on red quite a lot, so you then buy a CTEK charger, kerching!)... There's no way they can know the capacity of the battery without internal battery monitoring or electronics to monitor current in v's current out - but even then it'd still need a full discharge and recharge cycle to know the total capacity in the first place in order to give a percentage.
The percentage ranges they give are just wild guesstimates based on the voltage and provide a bit of comfort to the user (hence the name I guess). As an example, I have a faulty battery in my garage, it reads 12.8v so would show green on a 'comfort indicator', but as soon as you put a load on it, it drops to 0.6v and wouldn't even tick over a starter motor.

Doing some quick digging they appear to just be basic volt meters, according to a post I found where someone contacted CTEK the ranges are:
Green: above 12.7 volts
Yellow: 12.4 - 12.7 volts
Red: below 12.4 volts

(which explains why you appear to gain 'capacity' after leaving it for 30 minutes)

So even at red, you shouldn't have any problems - the car should be able to start (at least once) from a battery as low as 11.5v, then it'll begin to charge it.

As for the random wipers and lights; I've had that happen a few times, especially at this time of year, I believe it's due to moisture between the rain sensor and the windscreen - the car thinks it's raining and activates the wipers and headlamps. It corrects itself after a short time after it dries out.

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