Volkswagen Car Problems

Volkswagen is a brand of vehicles with a unique position in the market today because it possesses some of the most sought-after qualities in the industry. Every buyer looks for a car model with powerful performance and one that offers a smooth ride.

Whether you are looking for a small, medium, or large popular model car, Volkswagen vehicles have something for every driver to find pleasure in driving. In addition, Volkswagen models offer the best qualities in practicability, safety, and fuel efficiency.

But it is important to have the right data so that you know the best model in the market, car complaints, vw car problems and defect information. As per the recent reliability survey, you can get vw cars at an average cost, making them highly affordable and reliable models in the market.

However, vw vehicles are bound to experience some failures other than the general wear and tear like any other machine.

Each brand has areas of weakness and parts

Each brand has areas of weakness and parts that are likely to develop some problems. Some experience may have a software problem while others have issues with oil changes depending on the model years of manufacture.

Therefore, all Volkswagen owners need to be aware of the possible most common issues found with Volkswagen Vehicles.

It will be easy to diagnose them and call an expert to fix them as soon as you experience them. Here are the top five common problems you are likely to encounter with your Volkswagen models.

Check Engine Light

Check Engine Light

Volkswagen check engine light is likely to show in most models when there is a slight problem as a warning sign that your car has an issue. When the check engine light shows, you should know that something requires your attention.

It is prudent for vehicle owners to be observant when driving so that when the check engine light shows, you can notice and have the vehicle repaired before it develops a more complex problem.

When you see the yellow light, it is important to turn off your radio to listen to the engine and find out whether it is making any sound.

Here are top Volkswagen engine failure issues that may cause the check engine light shows and which needs quick fixing.

Check Engine

Gas Cap

Your German Brand gas cap can be damaged or loose, which can trigger the check engine light to pop. If you notice the light, first check the gas cap before you think of the engine failure and see if it is loose, lighten it up, and drive while observing the problem.

If the light goes off, it indicates that you have solved the problem, and therefore, there is no need to take the vehicle to a qualified repair shop.

However, if you find that the cap is not tightening, you can ask an expert to check it out and fix it or see whether it needs replacement.

Most models depending on their model years of manufacture do not have a big issue with gas caps.

Gas Cap

Faulty Oxygen Sensor

Another thing that can trigger the check engine light to show is a faulty oxygen sensor or the wrong sensor.

For example, sometimes the sensor becomes clogged with dirt, or it may be faulty, and when that happens, the sensor detects some emission issues and triggers the check engine light. Passat specifically is one of the four Volkswagen vehicles that have issues with starting.

When you experience a problem when starting the vehicle find out whether it has something to do with the transmission.

If it is not a transmission them consider checking the starter if you can figure it out, then it will be good if you have the sensor replaced.

Catalytic Converter

A catalytic converter is a device that converts carbon monoxide into carbon dioxide. When it is faulty, the carbon monoxide will pollute the car, and it is a dangerous gas to inhale.

The problem also leads to low performance and high fuel consumption. So if your machine’s problem is the converter, it is important to have an expert look at it immediately to avoid pollution and fuel economy issues.

Worn Sparks Plug

Spark Plugs are the ones that fire up your gasoline engine, and although they are not problematic when they are worn out, they are likely to misfire and cause your car to malfunction. Therefore, it is important to check them when you see the warning light for the smooth running of your vehicle.

Worn Sparks Plug

Engine Overheating

Engine overheating or engine failure is dangerous and something that you should correct straight away because it can lead to the engine catching fire. However, it is a common issue with the older models that you should fix as soon as you detect it.

Engine Overheating

Oil Sludge

The oil sludge problem is likely to happen for vehicles that have covered between 70000 miles and 90000 miles. Also, it is paramount to follow the manufacturer’s instructions if you want to avoid most of the common problems associated with oil sludge. Regular oil changes will prevent the problem with oil sludge and many other problems as well as following the manufacturer’s instructions.

Airbag Malfunction Light

Airbag Malfunction is a common problem after the car covers over 100000 miles. When you see the airbag light showing, it is essential to visit a qualified repair shop as soon as you notice it. Apart from being dangerous, driving your car with the airbag light is also an offense, and you could be fined for driving when your airbag malfunction light is on, whether you have noticed it or not.

Wiring Harness Shorts

After driving your car for about 100000 miles, you may experience wiring harness shorts. Whenever you have any electrical problems shorts, it is advisable to check the car with a qualified electrical wiring expert.

Fixing the problem in the wrong way leads to damaging good cars that could be very costly to fix. A qualified repair shop would have the right wiring harness batches and they know how to deal with wiring harness shorts.

They have the manufacturer guidelines and manual to know the average number of times they can fix the elements before changing them. This problem is mostly experienced in the VW Jetta model 2006, thus being a common problem, proper electrical should always be checked regularly.

Wiring Harness Shorts

Coil Failure

Coil failure is a common issue with Passat cars and VW golf cars in Particular, and it mostly occurs after the 75000-mile mark.

Therefore, when you experience this problem with your Passat car, it is advisable not to fix it yourself. Instead, it is best to call a qualified car repair expert to fix the specific issues. They also know the average cost of the coils so that you are not exploited when buying them yourself.

Taking proper care of your Volkswagen vehicle is the best way to help it to serve you for long. However, some of the issues are common depending on the model years of manufacture. Therefore, knowing the model years of manufacture can help you in determining the common issues according to the available data.

That means when you have a problem you will have to look at what issues are common for models manufactured that same year. However, with the eighth-generation Volkswagen Golf models, you are sure most of the problems will be over.

Bad oxygen flow and Mass airflow sensor

The sensor is responsible for calculating the amount of airflow within the engine. Volkswagen vehicles are built with Mass Air Flow sensors that enable the vehicle owner to know the amount of fuel utilized by the vehicle at a given time, thus with time the Volkswagen Passat or any other model may experience degradation in terms of vehicle engine performance as the fuel injectors and mass airflow sensors reduce there effectivity.

Several symptoms that may result to reduce performance in Volkswagen cars MAF sensors and fuel injectors include:

  • Illuminated check engine lights;
  • .Trouble accelerating;
  • Rough idle;
  • Poor fuel economy;
  • Black exhaust smoke;
  • Hesistation or surging of the engine;
  • Hard starting.

How to fix a bad MAF Sensors?

Ensure to clean the mass airflow sensors always to ensure reduced fuel contamination, by doing so always ensure new fuel filters are installed by the dealership or mechanic to reduce failures during the road trips.

The Mass Airflow sensors and fuel injectors should be replaced immediately in case a change in performance is detected with time.

Regular diagnostics should be done by the vehicle owner to establish common problems with the Mass fuel injectors before a trip is set on the road.

PCV valve failure

A failure in your PCV valve may be hazardous to both your vehicle and the environment at large. Positive Crankshaft ventilation(PCV) ensures gases produced by the vehicle are captured and recirculated back to the intake system where they are further burned down.

The main function of PCV is to capture unburned fuel gases thus reducing emissions released by your vehicle. A situation where the PCV cannot capture these unburned fuels emitted by the vehicle may lead to reduce in-vehicle performance since the gases contain gases such as hydrocarbons, carbon monoxide, water, sulfuric acid which may result in corroding vehicle and causing sludge build resulting to reduce vehicle performance.


Signs resulting in bad PCV valve failure may include the following:

  • Misfire valve codes;
  • Rough poor idling;
  • intake whistling noise;
  • lean air to fuel ratio;
  • PO507 fault code;
  • po507faul code(idle air control system).

The main remedy for PCV valve problem is usually doing replacement from the dealership, genuine Volkswagen products are recommended for effective vehicle performance on and off-road.

Boost diverter valve

The valve in Volkswagen Passat model 2006 mostly helped in controlling boast pressure and recirculate boasted air called charge-air back into the engine. In full throttle of the engine, the diverter valve gets closed off resulting in charging air being funneled into the engine.

When the diverter valves break off it may lead to drop reduced charge air circulation within the engine, due to the inability to open and close simultaneously leading reduce in the drastic performance of the engine timing chain.

Signs resulting to boost diverter valves may include

  • Boast pressure drops under acceleration
  • Performance loss, lack of acceleration, noticeable power drop
  • increased intake sounds during acceleration

The best remedy to this problem is instant replacement with a genuine part or spare.

How reliable is Volkswagen?

While the company and companies that are part of its vast umbrella have been criticized for their involvement in the emission scandal of 2015 and the resulting fines it’s currently paying the price for, Volkswagen’s credibility is not often questioned. It’s a common assumption that since it’s an German car, it’s bound to be reliable.
In 2013 Warranty Direct (who also run ReliabilityIndex) conducted a study which showed that people believe that cars manufactured by German-owned firms have greater reliability, however the reality is quite different. The numerous reports from WarrantyDirect found the fact that Audi, BMW and Volkswagen iconic beetle were making some of the worst-performing engines on the market.
The question is. Is Volkswagen reliable? Are the German manufacturer the first to introduce reliable engineering or is it in a laggard position Japanese competitors?

is vw reliable
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