my car is renault megane coupe 1.6 , i found my battery has no fluid and added battery fluid but since then it still difficult to start the engine.

albert delizo, June 2008

You don't add anything to car batteries these days - with the exception of distilled water on the rare occasion that its necessary (or even possible). You need to fit a new battery, and then use a test meter to check for over charging once the engine is running again. Expect to see around 14.2 volts with the engine running.

John, June 2008