Volkswagen faces fresh legal storm over EA888 oil consumption

According to the plaintiffs, the engines suffer from a defect that leads to excessive oil consumption. In extreme cases, they argue, the problem can trigger sudden engine shutdown or even catastrophic failure. Volkswagen, for its part, maintains that the oil use falls within normal operating parameters.

The case focuses primarily on the 2022 to 2023 Volkswagen Tiguan, though the scope stretches far beyond a single SUV.

The alleged fault at the heart of the case

At the centre of the lawsuit lies the EA888 engine, the backbone of much of the Volkswagen and Audi line up. Experts cited by the plaintiffs claim that defective or low tension piston rings fail to scrape excess oil from the cylinder walls. As a result, oil enters the combustion chamber and burns.

Burning oil creates carbon deposits. Over time, these deposits can clog the positive crankcase ventilation system. Once the PCV valve becomes obstructed, pressure builds inside the crankcase. That excess pressure may damage seals and gaskets and, in severe scenarios, even crack the plastic oil pan cover.

Owners report oil consumption of 0.5 to 1 litre per 1000 to 2000 kilometres. Dealers allegedly refuse major repairs such as piston ring replacement, even when vehicles remain under warranty, arguing that such consumption sits within the manufacturer’s stated tolerance.

A wide range of affected models

Because the EA888 engine features across numerous models, the potential impact is significant.

Volkswagen models named in the complaint include the Tiguan, Atlas, GTI, Golf R and Jetta. On the Audi side, the list covers the A3, A4, A5, Q3, Q5 and TT. In short, some of the group’s most popular petrol powered cars and SUVs.

In early January this year, the court dismissed a substantial portion of Volkswagen’s objections, allowing the case to proceed. That decision opens the door for hundreds of thousands of owners to seek compensation or free engine repairs if the plaintiffs ultimately prevail.

Reputation and cost at stake

Analysts warn that a strategy built on denial could prove costly. Drivers forced to top up engine oil every few weeks are unlikely to view it as a quirk of character. For a brand that trades heavily on German engineering credibility, sustained allegations of excessive oil consumption risk eroding trust.

Should the court order a large scale recall to replace piston rings in hundreds of thousands of EA888 engines, the bill could run into billions of euros. There is also an environmental angle. Burning oil can damage catalytic converters and increase emissions, a point that sits uneasily with modern regulatory standards.

What owners should do

Drivers of vehicles equipped with the EA888 engine would be wise to document everything. Keep receipts for purchased engine oil and request an official oil consumption test from an authorised dealer.

Blindly adhering to 30,000 kilometre service intervals may not be prudent. Checking the oil level every 1000 kilometres is a sensible precaution. Blue smoke on cold start, rough running or an illuminated check engine light can all signal that oil consumption has progressed beyond an inconvenience.

For Volkswagen, the EA888 has long been a technical cornerstone. Whether it now becomes a financial and reputational liability depends on what unfolds in court. Either way, the affair adds another uncomfortable chapter to the group’s recent history.