Erratic electrical problem.

[PitstopPete]

Hello, I have a 2007 Focus style, 1.6, petrol and it has recently having erratic electrical problems. When I turn the key to start the car just before the engine turns over sometimes the windscreen wipers come on for a second or two,  and a warning beep or two or 3.

The other day when I was driving all the instrument cluster lights went on, a few seconds later the lights went off. This has happened a few times.

The other day the temp gauge went to the top when I started the engine, the engine was already warm from driving earlier. The engine was not overheating. Next time I started it it was fine.

The petrol gauge showed empty when I know I had half a tank full. 

The engine cuts out when driving, and when I started it up again it just died, until I start it up and rev the engine. This has happened a few times.

I know a bit about cars and mechanics,  but electrics are not my strong point. I would be grateful for any help or advise. Thanks.

I will clean up any earth connections just in case

[Frembrit]

How old is the battery? Might be worth getting that checked/tested to start with. Strange things happen (like the wipers) when a battery is on its last legs.

[PitstopPete]

The battery is at least 3 years old. I will test it tomorrow. Thanks for the reply.

 

[lasthope]

might be your instrument cluster 

 

[PitstopPete]

I changed the battery and that cured the electrical problems. I also changed the ignition switch and that has stopped the car from stalling. All is good for now.