hello i hope someone can give me some advice have 03 r53 no warning lights speedo or tack power to all fuses and relays seen ok and the car also will not start thanks

 

Hello. The first place to look for trouble in your starting system is your battery. The battery is perhaps the most important electrical component on the car, and due to its design and nature, is perhaps one of the most troublesome. Before doing anything drastic like replacing your starter or looking at your fuel injection ECU, you should make sure that your battery is in good condition. We have some good info here to help you with testing your battery.

 

1. Check the battery voltage first and have it load tested

2. Also check the terminals and ground points

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