Where Should You Go to Address your Audi’s Engine Misfires

Audi Engine Misfires
Audi Services and Repair

Audi’s are known as the practical alternative to luxury motoring. They embody all the elements desired from a luxury vehicle but possess innovations designed for the rigours of everyday life. Audi is the perfect choice for professionals who need functionality but still have a passion for motoring.

However, something that can really ruin the functionality and performance of your Audi is regular misres. Disruptive to your driving experience and damaging to your car, misfires should always be investigated and never ignored. With this in mind, in this article, we will take a closer look at the different types of misre, what causes them, and the best place to go to seek repairs

How Does the Combustion Cycle Work?

  1. Intake: Stroke 1 is known as the intake stroke. This is where air and fuel enter the engine through the inlet valve. This step requires the piston, cylinder, and crankshaft to work together.
  2. Compression: During stroke 2, the inlet valve closes to create a tight seal. The piston retracts back into the cylinder, increasing the pressure. This makes that air/fuel mixture in the engine highly flammable
  3. Power: Stroke 3 is where the power happens. The spark plugs create sparks within the engine, igniting the fuel. The combustion of the fuel releases a burst of hot gas, which causes the piston to drop. This allows the energy created to be released to the crankshaft, which gives your vehicle forward motion.
  4. Exhaust: Stroke four allows the outlet valve to open. This carries the exhaust gases created by the burning fuel out of the vehicle via the exhaust pipe.
  5. Repeat: The process then repeats itself, ensuring the crankshaft continues to spin.

Different Types of MIsfires

If any step in the combustion cycle is interrupted, then misre can occur. There are 3 types of misre which can occur, each for different reasons:

  • Lean Misre: This occurs when the air/fuel ratio in your engine is imbalanced and the mixture within the engine isn’t ammable enough for the spark plugs to ignite.
  • Ignition Misre: This type of misre usually occurs when there are issues with the spark plugs or the connected ignition systems. Ignition misre occurs when sparks are not created to ignite the fuel in the engine.
  • Mechanical Misre: If any of the mechanical parts of the combustion cycle fail, such as the pistons or valves, then mechanical misre occurs

What Causes Misfires to Occur?

As the engine represents a complex system of parts all working together to achieve one goal, there can be many reasons why a misre might occur. Being aware of these causes can help you to respond faster to any problems and seek remediation before damage can occur. Listed below are some of the most common causes of engine misfire issues:

  • Faulty or worn out spark plugs
  • Faulty spark plug connectors/wires
  • Failed MAF sensor
  • Faulty fuel pump
  • Clogged fuel injectors
  • Clogged fuel liter
  • Faulty intake gasket
  • Worn Piston rings
  • Faulty EGR valve
  • Head gasket leaks
  • Transmission issues
  • Clutch issues
  • Electronic failures
  • Battery issues
  • Crankshaft failure

It is important to never ignore misfires, particularly if they appear to be occurring more and more frequently. Frequent misfires put excess strain upon your engine and related systems causing a chain reaction of failures. This can cause excessive deterioration of parts, or in a worst case scenario, severe engine damage.

Audi Auto Repairs

If your Audi is having issues, bring it to any of our Locations for an inspection. To Experience the Eurofed Difference, schedule an Appointment and a service manager will respond as soon as possible.

Top 5 Audi A4 Problems

Audi A4 Problems

Top 5 Audi A4 Problems

Since the introduction of the Audi A4 in 1994, it has been a very popular compact executive luxury sedan. Overall, Audi has done an excellent job at capturing the high-end luxury market, due to its attention to design, power and handling. The A4 is considered a mid-tier Audi model starting at around $36,000 for a brand new vehicle. And even though a new car might not have any immediate issues, A4’s – like all cars – have known problems that all car buyers should be aware of when they start getting old.

Audi A4 Problems

Here are the top 5 problems with Audi A4 vehicles according to Repair Pal:

5) Decreased Power and Fuel Economy

This, unfortunately affects Audi A4 models built between 2006 and 2017 that use the 2.0FSI, 2.0TFSI and 3.2FSI engines. All these engines have been reported to be subject to carbon build up and might cause a check engine light. The only way to fix this is to have the intake manifold, parts and cylinder head professionally cleaned. It is recommended that this be done every 20,000 miles.

4) Vacuum Leaks, Oxygen Sensor, or Catalytic Converter Fault

A fault or failure in any of these would cause your Audi A4 Check Engine Light to turn on. The Oxygen Sensor is important for a vehicle to run efficiently and reducing carbon emissions. The Catalytic Converter also allows a vehicle to reduce emissions drastically and has been required by the EPA for decades.

A problem with the Oxygen Sensor or Catalytic Converter will call cause a failure of an emissions test, release a foul smell and will result in less power. Problems of this nature have not been reported in modeals built after 2012.

3) Clogged Plenum Tray Drains

There have been many reports with clogged drains causing problems with the Audi A4. Clogged drains cause water to enter the vehicle causing major damage to electrical components. Make sure to keep the drains free of debris like leaves, especially if you know a storm is coming.

This problem has not been reported by Audi models built after 2010 with an average mileage of 102,000 miles.

2) Engine Oil Leaks

Engine oil leaks in the Audi A4 are caused due to a failing or bad valve cover gasket. Leaks in the valve cover gasket cause oil to leak into the spark plug tubes, which results in an engine misfire illuminating the Check Engine Light.

This problem does not affect any models built after 2010 with an average mileage of 124,000 miles.

1) Failed Ignition Coil, Spark Plug, or Ignition Wire

This problem causes the Check Engine LIght to illuminate because of the ignition coil or spark plug misfires, which causes the engine to misfire in the Audi A4. The result is a spark plug or ignition coil replacement.

The good news is that you won’t have to worry about such problems if your Audi is a 2012 or newer model with an average of 102,000 miles.

If your Audi is have issues, bring it in for a free inspection. To experience our Industry Leading Service and Repairs, Schedule your Appointment or Contact a Location near you.