Saab 9-5 Saloon Diesel Auto 53 plate - Battery drain

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Mon 14 Mar 2011 19:08
Saab 9-5 Saloon Diesel Auto 53 plate - Battery drain - Bruno123

The car recently had problems with reversing lights and sensors and went into a Saab main dealer, who replaced some of the wiring loom. Since then I have had problems starting the car. I have used jump leads to some effect but after a short run and standing for 24 hours the car does not start. The battery has been checked and it is apparently OK but it is draining power somewhere and I don't know where the problem lies. Now even after a longer run it is very difficult to start even using jump leads. Any suggestions ?

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Mon 14 Mar 2011 22:34
Saab 9-5 Saloon Diesel Auto 53 plate - Battery drain - Peter.N.

You need to disconnect one battery terminal and connect an amp meter between the removed terminal and the battery, if you have a current flow of more than say 100m/a then you have excessive current draw, make sure nothing is on including interior lights, if you have more than that, remove one fuse at a time until the current drops then check your handbook to see what that fuse powers. If you have a drawer of less than 100 ma I would suspect your battery has low capacity.

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