The 6th-generation D8 Volkswagen Passat comes in two main iterations: the B8 (2015 – 2019) and the updated B8.5 (2019 – 2023).

You can choose between the lifted, but not quite full SUV, Alltrack wagons or the more traditional wagon and sedan body styles.

In Australia, all Passats are equipped with turbocharged 4-cylinder engines, available in both petrol and diesel variants.

The model names reflect the engine specifications: for example the 132TSI features a 132 kW, 1.8 L petrol engine; the 206TSI includes a 162 kW, 2.0 L petrol engine; and the 140TDI has a 140 kW, 2.0 L diesel engine.

Trim levels and their features can depend on the mechanical package, with newer year models and higher trims offering better interior materials and more features.

Potentially thanks to high demand for SUVs like the Tiguan, the Passat has been discontinued, making it a unique being proposition.

The overall design of the Passat saw minimal changes between the B8 and B8.5 iterations, although some interior materials were improved. Higher trim levels offer significantly enhanced interiors and Volkswagen continuously made subtle improvements throughout the Passat’s lifecycle.

The update from B8 to B8.5 enhanced the technology and features of the Passat. Standard features in Australian models include Apple CarPlay and Android Auto, front and rear parking sensors, a rearview camera and much more.

Most used models on the market also come with leather upholstery while higher spec and post-update models can include premium features such as a Harman Kardon sound system, a digital instrument cluster, a larger infotainment screen, massage and heated front seats, and a 360-degree camera.

While receiving an excellent response from consumers and the motoring media when new, Volkswagen’s reputation for reliability in Australia is mixed, with many reports of mechanical and electronic issues. 

What goes wrong with a used Volkswagen Passat (B8)?

Exterior

It is critical to regularly clear all drainage holes, especially around the sunroof, as blocked drainage holes can lead to water ingress, causing significant damage to the electronics.

Speaking of electronics, there are reports of electronic issues increasing as the vehicle ages, such as lighting malfunctions, power window problems, and boot latch failures. Although these issues are not widespread, they can be troublesome when they occur.

Some owners report dissatisfaction with the quality of plastics and trim around the windows, noting that aging plastics can come loose, causing squeaks and rattles.

Another common issue across many Volkswagen models is the bonnet cable, which can stretch or break, complicating engine access. Replacement cables are notably expensive.

Additionally, the bonnet’s design and angle make it highly susceptible to stone chips.

Interior

Various noise complaints have been reported by owners, including rattles from the tailgate in wagons, squeaks from door pillars, and rattling from the dashboard.

Some specific noises, such as rattling from the gauge cluster area, can occur under specific conditions like hot weather.

The USB input is prone to collecting dirt and debris due to its upward-facing position, making it difficult to clean.

Infotainment screens may develop issues with dead pixels or lines of dead pixels.

Higher-spec models with button-less climate control have received complaints about their usability, with physical buttons and knobs preferred for their ease of use without diverting attention from the road.

Various reports of minor electronic issues include unresponsive buttons and slow infotainment systems.

More serious issues include the electronic park brake occasionally failing to disengage, requiring a tow.

Seat bolsters have also received complaints for being too narrow, too firm, or too high, making entry and exit uncomfortable for some drivers.

Additionally, interior trim, particularly on driver and passenger door handles, can show premature signs of wear.

Mechanically:

The diesel engines in the B8 and B8.5 Passat are generally reliable but do present several typical issues:

These issues are prevalent among modern common rail diesel engines. DPFs can become clogged, leading to reduced performance and increased emissions. EGR systems can also fail, causing engine inefficiency and potential damage.

Reports indicate frequent injector seal leaks, which can result in fuel leakage and reduced engine performance. Prompt repair is essential to prevent further damage.

Oil leaks from the valve cover are common. These leaks need to be addressed quickly to avoid more severe engine issues, such as oil contamination and reduced lubrication.

Problems with the engine breather system can lead to increased oil consumption and potential engine damage.

Leaks in the cooling system are typically due to the premature deterioration of engine bay plastics. Regular inspection and maintenance of the cooling system are necessary to prevent overheating and potential engine damage.

The timing belt must be replaced every 105,000 kilometres or every 7 years, whichever comes first. Sticking to this maintenance schedule is crucial, as failure to do so can result in significant engine damage due to timing belt failure.

The 2.0 L turbo petrol engines in the B8 and B8.5 Passat, while an improvement over earlier incarnations of this EA888 engine, are not without their issues:These engines feature a timing chain instead of a belt, which typically does not require regular replacement.

However, issues with chain tensioners and guides are known and can cause severe engine damage if not addressed.

Many owners report unusually high oil consumption. Regular monitoring of oil levels and timely top-ups are necessary to ensure engine longevity.

Coil packs can fail, leading to engine misfires and reduced performance. Replacing faulty coil packs promptly is essential. Problems with the water pump and thermostat module are common. These issues can cause the engine to overheat if not resolved in a timely manner.

Due to the direct injection system, the inlet manifold can become clogged over time, affecting engine performance and fuel efficiency. Regular cleaning and maintenance can help mitigate this issue.

While turbocharger failures are less common, they do occur, particularly in vehicles with poor service histories. Ensuring regular maintenance and proper servicing can help prevent turbo failures.

The B8 and B8.5 Passat come equipped with the improved DSG (Direct Shift Gearbox) twin-clutch transmission, which has overcome many issues seen in earlier models.

Although rare, issues with the clutch pack and the mechatronic unit can occur, especially with poor servicing and harsh driving. Regular maintenance is key to ensuring the longevity of these components.

The DSG transmissions in these models are generally more reliable than their predecessors. However, maintaining regular service intervals and ensuring proper vehicle treatment are essential to avoid potential problems.

Should you buy a used Volkswagen Passat (B8)?

When considering the 6th-generation B8/8.5 Volkswagen Passat, it’s essential to be discerning about the specific example and condition. We’d recommend avoiding lower-spec or older examples, as for a similar price, you could opt for a Mazda 6 in either sedan or wagon form.

The Mazda 6 matches the Passat in terms of the subjective points such as driving experience and aesthetics, and it often proves to be more reliable and cheaper to maintain. Not to mention, is likely to retain value more than the Passat.

For those interested in the Allroad versions of the Passat, it’s worth considering a Subaru Outback as an alternative. While the Outback has its own set of issues, such as problems with the CVT transmission, it remains a competitive option in this segment.

However, if you are looking at the high-performance 206TSI R-Line, few cars can match its capabilities. Despite not being perfect and requiring meticulous maintenance to avoid significant issues, this model stands out.

Ensuring that the vehicle has an impeccable service history is crucial, as is being prepared to invest a few thousand dollars in potential repairs, such as replacing the water pump and thermostat.

If you find a well-maintained 206TSI R-Line with a perfect service record and are prepared for the possible maintenance costs, it can be an outstanding vehicle. When at its best, the 206TSI R-Line delivers an exceptional driving experience.