LondOz

1 hour ago, ColinBarber said:

As stated, it wasn't an issue other than faulty batteries that couldn't hold a charge.

If you suspect you have a problem then get an auto electrician to measure the parasitic load of the vehicle after it has been locked for 20 mins. You shouldn't see more the 50 mA being consumed. If it is more then the circuits will have to be diagnosed to determine what component is consuming power.

Make sure you battery is clean and dirt free.

Thanks a lot. It is actually now at an auto electrician and they are stripping the whole boot to check the issue. I will ask them to try this as well. 

Thanks a lot. It is actually now at an auto electrician and they are stripping the whole boot to check the issue. I will ask them to try this as well. 

On 2/28/2014 at 11:04 AM, austin brown said:

hi all, I am the orig poster here. thought I would give an update.

well after many many months of frustration, about 7 trips to the local lexus dealer, many weeks without a car, etc, etc... the service technicians decided to put a new OEM 12V Battery in the car. This is after we had used several different off the shelf store bought batteries, which kept draining and dying as described above.

And I am happy to say that after more than 1yr now, the problem has not recurred and its been all but forgotten.

So the lesson learned here, is that perhaps one should spend the extra 30£ to buy an OEM Battery rather than a cheaper one from a local car shop.

thanks to everyone for your replies and views.

safe driving.

Hi we have been having a similar issue with the same model. Was this really the issue?? And was it a long term solution? Thanks