Unusual battery warning

[Thecraig]

I’m looking at an 07 S Type 2.7 dt tomorrow, very low mileage with full history and mot. All appears perfect except the seller says they had to replace the battery recently and since then it’s had warning light for it but it’s common problem and needs a reset etc. only I can’t seem to find any information about it other than things like the epb and windows etc needing a program reset. Any suggestions of what I need to check and look for? I have an OBD fault code reader to take with me and plug in. 

[keithstype27]

Hi Craig, in my experience of owning an S Type 2.7 2007 for 13 years, a poorly charged battery (or indeed a failing/failed battery) can cause numerous dash warning lights but they usually disappear once the battery has been charged or replaced. The act of disconnecting and reconnecting a battery will usually clear the dash lights but the DTC (fault codes) will remain in the cars OBD system.

Stored DTC (Fault codes) can be 'cleared' using a suitable machine, in my case I have an icarsoft i930.  I would recommend borrowing one or having the cars DTC's checked before purchasing. If the fault code(s) cannot be cleared, they need to be investigated further.

 

[Wrinkly]

2 hours ago, keithstype27 said:

Hi Craig, in my experience of owning an S Type 2.7 2007 for 13 years, a poorly charged battery (or indeed a failing/failed battery) can cause numerous dash warning lights but they usually disappear once the battery has been charged or replaced. The act of disconnecting and reconnecting a battery will usually clear the dash lights but the DTC (fault codes) will remain in the cars OBD system.

Stored DTC (Fault codes) can be 'cleared' using a suitable machine, in my case I have an icarsoft i930.  I would recommend borrowing one or having the cars DTC's checked before purchasing. If the fault code(s) cannot be cleared, they need to be investigated further.

 

Craig

Certainly not an unusual problem for S-Types and in fact other models of Jaguar. However S-Types appear to be the most prone to the battery problems. 

I use a CTEX MXS 7.0 Charger/Re-conditioner on my S-Type regularly. Usually at least once per week and for a period of at least 24 hours. Keeps the fault codes to a manageable level.  Well worthwhile piece of equipment to invest in and used by many owners on this Forum. 

There is a Full Re-Set Schedule listed on this Forum.

 

Best Wishes and Regards, John

 

[Wrinkly]

16 hours ago, Wrinkly said:

Craig

Certainly not an unusual problem for S-Types and in fact other models of Jaguar. However S-Types appear to be the most prone to the battery problems. 

I use a CTEX MXS 7.0 Charger/Re-conditioner on my S-Type regularly. Usually at least once per week and for a period of at least 24 hours. Keeps the fault codes to a manageable level.  Well worthwhile piece of equipment to invest in and used by many owners on this Forum. 

There is a Full Re-Set Schedule listed on this Forum.

 

Best Wishes and Regards, John

 

Tom

Re-set document here:   Regards, John

 

[Denis Oxon]

If I put a meter on the battery without the engine running what voltage should I get ?

[Jimbov8]

17 hours ago, Denis Oxon said:

If I put a meter on the battery without the engine running what voltage should I get ?

For a fully charged battery you should see 12.8v, anything less than 12.4v and your battery will start sulphating.

[Denis Oxon]

On 9/27/2022 at 4:21 PM, Jimbov8 said:

For a fully charged battery you should see 12.8v, anything less than 12.4v and your battery will start sulphating.

Thank you