If your Mercedes Benz doesn't start, you can perform a few troubleshooting to avoid Mercedez Benz repair Laguna Niguel costs. However, before you attempt to fix the issue yourself, a few conditions need to be met first such as:
- Your car should have fuel
- your Mercedes Benz should spark
- it should have electrical power to crank the engine
- it's Drive Authorization System should start
You would know that your Mercedes won't start if:
- the engine dies after it starts
- you hear a clicking noise, but it won't start
- your car turns over, but it won't start
- the engine clicks, but it won't start
- you put the key in the ignition, but it won't start
Reasons why your Mercedes Benz won't start:
Battery. The most obvious reason is that the battery might already be too old. Most vehicle owners would replace the battery only after ten years of use, but the replacement should be considered as early as 6 to 7 years.
If you have a relatively new battery, though, but the engine won't start, trickle charge your battery by using a 12-volt trickle charger.
Fuse and relays. The fuse on your starter circuit, Ignition, EIS, or Fuel Pump should be checked next if the battery is not the issue. Remember that is a particular vehicle system malfunctions, it's the fuse which takes all the brunt and is burned out. Make sure that you replace it with the same ampere fuse like the original one after testing the fuse using a digital multimeter.
Brake Light Switch. If your Mercedes Benz Drive Authorization System won't allow you to start your vehicle, it's more likely that your brake light switch is not working.