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Originally Posted by macafee2

The stop start function on the wife's focus has stopped working.
Dealer is saying battery has had it.
Looking at the internet it suggests having a dealer fit a new battery as diy can lead to electronic problems, what do you know of this?

Also, if the car starts ok, she drives to the shops, she stops the car does what ever then starts it again and drives to next shop and so on and each time the car starts why does the stop start not stop? Surely there is enough guts in the battery to start the car as the wife is able to start it.

confused with nagging doubt that battery is duff but it could be due to only knowing about old type of technology

macafee2

Whoever invented that start/stop system needs shooting.--Most ridiculous thing ever.--Overloads the charging system, the battery and the starter motor.--Designed to help dealers make more money out of us poor old drivers.


Personally I think you are better off without it.---Can't see it being the battery if the engine starts OK.