2006 Audi A6 48 Continuous Cranks but Wont Start
There are a number of issues that can go wrong with starting system and make your 2006 Audi A6 allroad quattro car won't start or hard time to start – This article guides you through some of the facts behind the starting system, and the components that may be to blame, and tells you what action you can take to try to remedy each situation.
No lights on the 2006 Audi A6 allroad quattro dashboard
If no lights coming on in the dashboard and no other electrical consumers work, the battery could be completely dead or there is no connection between the battery and the vehicle electrical system. Check if the battery terminals look tight. If the battery is completely dead, jump starting might help.
2006 Audi A6 allroad quattro the key won't turn in the ignition
If the key won't turn in the ignition, it could be for a couple of reasons: Often this happens when the steering is locked by the ignition lock with the front wheels turned aside or when one of the front wheels is pushed against something. In this case, try turning the steering wheel left and right while gently jiggling the ignition key – this might help to release the steering lock.
2006 Audi A6 allroad quattro No Start, No Sound, No Crank when you turn the key in the ignition:
If nothing happens when you turn the ignition key to the "Start" position, it means that the starter motor doesn't turn over the engine. Most commonly this could be caused by a low/dead battery or there is no connection between the battery and starter.
Check the battery and the terminal cable connections. If they look really corroded, you need to clean the battery posts and cable connectors or replace the cables and try to start the engine. Also check the starter. The solenoid attached to the top of the starter can fail, as well as the components inside. Replace starter solenoid, starter contacts, starter assembly or repair starter circuit as required.
The 2006 Audi A6 allroad quattro car makes a clicking noise but won't start:
If you turn the key to the "Start" position, but the engine won't crank; all you hear is a single click or repeated clicking coming from the engine compartment. Very often this could be caused by a low battery or poor connection between the battery and starter.
Check the battery and the terminal cable connections. If they look really corroded, you need to clean the battery posts and cable connectors or replace the cables and try to start the engine. Also check the starter. The solenoid attached to the top of the starter can fail, as well as the components inside. Replace starter solenoid, starter contacts, starter assembly or repair starter circuit as required.
The 2006 Audi A6 allroad quattro engine cranks over but won't start:
There are many possible causes, but we know it is neither a battery nor a starter problem. Just remember: a vehicle will always require air, fuel, and the ignition to operate.
Check the fuel. You may be out of fuel, or the fuel isn't getting to your engine. If the wrong amount of fuel is being injected into the combustion chamber, or being injected at the wrong time, the engine will not start. Again, this will be a case where the engine cranks over, but will not actually run. This could be caused by a few different parts including the fuel pump, fuel filter, fuel injectors, and fuel lines. Some of those options are a stretch, but do have an effect on the system. Start with the fuel injectors, and make sure they are clean.
If it's not a fuel problem, the electrical spark isn't getting through to the spark plugs. Check the spark. Without spark to ignite the fuel mix in the combustion chamber, the engine will not start. It will turn over or "crank over" but will never actually run. Spark issues are not limited to the plugs. Check the spark plug wires, the distributor or module, and plug gap. These all have a huge effect on the function of the ignition system.
Source: https://automobilegt.com/troubleshooting-2006-audi-a6-allroad-quattro-wont-start-hard-start-problem/
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