Hello,

My BCG was not driven for a number of months by the orevious owner, he left the batteries on daily trickle charge.

So this is ny daily driver now.

I usually get a error code todo with the TPMS,so not that all that bothered.
Today the check brake light warning came on. Later ,after a while it went and not come back, also, today the rear drivers windows would not stay up as I locked the car, after many attempts I got it up,

The only good news is that I gor 10mpg round town ( as opposed to 6) and 16 mpg (as opposed to 10) mpg on the motorway.

Just worried that these errors mean batteries are going?

 

Even kept on a battery tender I had to replace both batteries in my Bentley. The faults you describe sound like old batteries. These car are very sensitive to low batteries.

 

Thank you,

That maybe the way forward, the way I see it if it is fault the light should remain on.

i take the car for a longer drive on the motorwayand also get the batteries checked out

 

Really a noted asthebrake light failures keeps coming on randomly not sure how to switch this off