Hi my BMW wont start when the weather gets colder. After a jump start it starts all day until it sits for a few hours then wont start again. Is it a new battery it needs?
- posted
18 years ago
Hi my BMW wont start when the weather gets colder. After a jump start it starts all day until it sits for a few hours then wont start again. Is it a new battery it needs?
Do you have some kind of load on the battery that wasn't there when it left the factory? I'm thinking badly fitted electrical acc's, ICE, immobiliser (suffered a shitty DIY immobiliser myself on a Cossie back in the day, took weeks and £££s to diagnose) etc?
Yup. The first frosts bring out all those with dodgy batteries.
The message from "George" contains these words:
Petrol or diesel?
The message from "George" contains these words:
Well, that eliminates dying glowplugs!
Yes. Soon it won't even jump start, which is the next stage in battery deterioration.
Or it's got a current drain, disconnect the earth lead from the battery once you've driven it & see if it sparks as you do so. If you reconnect it four hours later & it will start the car then you need to find the current drain, if it won't start the car you need a new battery.
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