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Thread: Pre-MOT problem

  1. #11
    Senior Member Rowley_1812's Avatar
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    Gaz, the CTEK instructions say that if you trickle charge the battery in the car then the negative clamp needs to connect to the vehicle chassis 'remote from the fuel pipe and the battery'. If, however, you prefer to remove the battery first then obviously you use both battery terminals but removal from the car is not necessary unless, of course, you cannot safely reach the car by way of an extension lead from the mains.

    At first I thought it was rocket science but actually it isn't. If you misconnect at any time there is an 'error lamp' that lights on the CTEK that serves to prevent you from blowing yourself up!
    2005 (55) X-type 2.0d S saloon ~ Zircon/Champagne/Belize.

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  3. #12
    Senior Member Victor's Avatar
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    Quote Originally Posted by Gaz03SE View Post
    Thanks. I have a charger with a quick connect lead for my motorbike but not sure if it's suitable for cars. Might invest in a Ctek MXS 5.0 that I've read about on here.
    Money well spent.
    A very cynical grumpy old man
    Late 2004 2.7D auto
    Connoisseur of Fine Ales
    "Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming - What a ride, where are the wimmin?"

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  5. #13
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    Halfords will probably check the battery for free. A digital voltmeter is a cheap and essential piece of kit.

    You might need to clear the faults with your OBD tool but you might get lucky.

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  7. #14
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    I did a check for codes and there were none, which made me think it may well be just a flat battery.

    New charger is on its' way so will try that first, as I've hardly left the house during lockdown. Car was running well prior to a few days ago, but lack of use may have affected it. MoT is due in a week, and I know about the time extension, but it will throw all my dates out if I do that. That's the trouble with being too organised, lol!

    One more question; if i charge the battery while it's still in the car, where in the boot is the easiest earth point for the negative lead?
    2003 S-Type 3.0 SE Auto

  8. #15
    Senior Member Rowley_1812's Avatar
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    Ah so, the S type has the battery in the boot ... like a BMW then.

    Didn't realise that, me having an X type where the battery is under the bonnet.


    BMWs have a special positive terminal under the bonnet specifically for battery charging and jump-starting as on their models it's not recommended that one connects direct to the battery ... something to do with bypassing the Battery Management System and confusing the ECU apparently.

    No doubt someone will be along to guide you further Gaz as clearly I'm not a specialist on S type battery location.
    2005 (55) X-type 2.0d S saloon ~ Zircon/Champagne/Belize.

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  10. #16
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    There's no battery management system on the S type. The correct way is to attach to the battery positive (see A in picture) and then an earth point such as the battery clamp down screw (B).
    You could also use the spare wheel clamp I guess.
    I have used the the battery clamp (see B on picture).
    Attached Thumbnails Attached Thumbnails battery ctek4.jpg  
    2007 S type R, Radiance Red/ Champagne, all options but for the sunroof. Oh, and the garage door opener.
    Added MP3 audio connectivity module.

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  12. #17
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    Thanks for that pic, makes it nice and clear for non-techies like myself.

    All my previous cars had batteries under the bonnet, this is my first car with a battery in the boot.
    2003 S-Type 3.0 SE Auto

  13. #18
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    Got my new charger, connected it up as per MrKis's pics, and Ctek lit up starting on number 2. Would this mean the battery was almost dead or do they all start like that regardless of condition?

    Charger was delivered while I was already out in the car, which started 1st time, but engine light, abs/tcs lights were still all on, although the car drove as well as it always has. Starting to wonder if the battery is not the problem, still no codes! Have had abs/tcs lights come on before, which turned out to be a faulty abs sensor, but never the engine light as well. Handbook says it needs Jag diagnostics to determine fault.
    2003 S-Type 3.0 SE Auto

  14. #19
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    If the battery condition is good then they move on to number 7 or 8, I forgot, the last 2 numbers anyway, within a few seconds of turning on.
    The last 2 numbers are basically maintenance, little top ups to keep the battery tip top. If your battery is good then you should get these numbers within a few seconds of turning it on.
    If it moves to these numbers within an hour, then is also probably ok. If it took several hours to get to the end numbers, then it was low.

    How long was it on the low numbers?
    Have you tried the recon mode?
    Is it set to car with AGM off?
    2007 S type R, Radiance Red/ Champagne, all options but for the sunroof. Oh, and the garage door opener.
    Added MP3 audio connectivity module.

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  16. #20
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    Had charger on all day until tonight when I had to lock my car and switch it off, as car is not in a garage. Reading on charger went from 2 to 3, where it stayed all day. Ctek was in normal car mode. Will try again tomorrow. Sounds like it may have been pretty low?
    2003 S-Type 3.0 SE Auto

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