Volkswagen sold cars with defective engines and then refused to fix them

Volkswagen Knowingly Sold Defective Tiguan Engines That Burn Oil
Corporate Misconduct Accountability Project

Volkswagen Knowingly Sold Defective Tiguan Engines That Burn Oil

VW concealed a dangerous engine defect in 2022-2023 Tiguans that causes excessive oil consumption, risking engine failure while driving. Thousands of owners were told it was normal.

HIGH SEVERITY
TL;DR

Volkswagen sold 2022-2023 Tiguan SUVs with defective EA888 engines that consume excessive oil between scheduled maintenance. Defective piston rings allow oil to leak into the combustion chamber and burn off, risking catastrophic engine failure while driving. Despite knowing about this oil consumption problem since at least 2008 through internal technical bulletins, VW concealed the defect from buyers, refused warranty repairs, and instructed dealers to tell owners the excessive oil consumption was normal. Owners must frequently add quarts of oil to prevent engine damage, yet VW has issued no recall and offered no permanent fix.

If you own a 2022-2023 VW Tiguan and have experienced low oil warnings or frequent oil top-offs, you may be affected by this defect.

Tens of thousands
Defective Tiguans sold nationwide
2,000 miles
Interval between low oil warnings for many owners
17 years
Time VW has known about excessive oil consumption defect
2008
Year VW first issued technical bulletin acknowledging oil consumption complaints

The Allegations: A Breakdown

โš ๏ธ
Core Allegations
What Volkswagen did · 8 points
01 Volkswagen designed and sold 2022-2023 Tiguan vehicles with defective EA888 engines containing faulty piston rings that allow engine oil to pass into the combustion chamber where it burns off. This design defect causes the vehicles to consume excessive amounts of oil between regularly scheduled service visits. high
02 VW knew about this oil consumption defect since at least December 2008, when it issued Technical Service Bulletin 17-08-03 acknowledging customer complaints of high oil consumption across 2000-2010 model year vehicles. The bulletin offered no solution, stating only ‘Not applicable’ under the Product Solution section. high
03 VW repeatedly revised and expanded its technical service bulletins about oil consumption through November 2020, March 2022, and September 2024, eventually covering model years 2000-2025. Each revision acknowledged the problem but continued to offer no actual repair solution. high
04 VW instructed its authorized dealerships to tell customers that excessive oil consumption was normal for Volkswagen engines. When owners complained about low oil warnings, dealers simply topped up the oil and sent them away without repairing the underlying defect. high
05 The defect poses an extreme safety hazard because it prevents the engine from maintaining proper oil levels and causes unpredictable oil consumption. This can cause sudden engine failure while vehicles are in operation at any speed, exposing drivers, passengers, and other motorists to serious risk of accidents and injury. critical
06 VW concealed the defect from buyers at the time of purchase and failed to disclose it in marketing materials, owner manuals, or warranty booklets. The company actively hid material facts about vehicle safety and reliability that would have prevented consumers from purchasing the vehicles or caused them to pay substantially less. high
07 VW has refused to correct the safety defect under its New Vehicle Limited Warranty, which promises to repair any defect in manufacturer material or workmanship within 4 years or 50,000 miles. The company has issued no recall, provided no adequate repairs to dealers, and at most allows dealers to top up oil levels when consumers seek warranty repairs. high
08 The defective piston rings also cause increased emissions. Oil burning produces harmful pollutants including unburned hydrocarbons, carbon monoxide, nitrogen oxides, and particulate matter. The defect allows combustion gases to escape into the crankcase and reduces combustion efficiency, further increasing exhaust emissions. medium
๐Ÿ’ฐ
Profit Over People
How VW prioritized sales over safety · 6 points
01 VW sold tens of thousands of defective 2022-2023 Tiguans across the United States while concealing the oil consumption defect. The company continued marketing these vehicles as safe, reliable, and high-quality despite internal knowledge that the engines were fundamentally flawed. high
02 By concealing the defect and avoiding a recall, VW avoided massive warranty costs that would result from repairing or replacing defective engines in tens of thousands of vehicles. Engine repairs involving piston rings require disassembling the engine and can cost thousands of dollars per vehicle. high
03 VW benefited financially by continuing to sell vehicles at full price that were actually worth substantially less due to the hidden defect. Consumers paid premium prices for vehicles they would not have purchased, or would have paid much less for, if they had known about the oil consumption problem. high
04 The company externalized repair costs onto consumers by refusing warranty coverage. Owners must repeatedly purchase oil to top off their engines between service intervals and face the risk of catastrophic engine failure that would require expensive out-of-pocket repairs. high
05 VW monitored social media, consumer complaints to NHTSA, and internal warranty data that clearly showed the widespread nature of the defect. Despite this comprehensive knowledge, the company made a calculated decision to continue concealing the problem rather than implementing a comprehensive fix. high
06 The company used its New Vehicle Limited Warranty as a marketing tool to project consumer confidence and corporate responsibility, while simultaneously refusing to honor that warranty by providing actual repairs for the oil consumption defect. medium
๐Ÿ›๏ธ
Regulatory Failures
Why regulators allowed this to continue · 5 points
01 VW has not issued any safety recall for the oil consumption defect despite knowing about the problem for over 17 years and despite the serious safety risks of sudden engine failure while driving. The National Highway Traffic Safety Administration has taken no enforcement action. high
02 Federal law requires automakers to confidentially disclose defects and related data to NHTSA, including field reports, customer complaints, and warranty data. VW used Technical Service Bulletins instead of public recalls to avoid regulatory scrutiny and minimize public visibility of the defect. high
03 Automakers have legal obligations under the Early Warning Reporting Requirements to identify and report emerging safety-related defects to NHTSA. VW monitored NHTSA complaint databases as part of this obligation but the company avoided triggering regulatory action by characterizing the defect as within normal parameters. high
04 Consumers filed numerous complaints with NHTSA about oil consumption in VW Tiguans, including detailed reports of vehicles requiring oil every 1,000 to 3,000 miles and producing blue smoke from burning oil. Despite this complaint pattern, regulators did not compel VW to issue a recall or provide adequate remedies. medium
05 The defect also increases vehicle emissions through incomplete combustion and burning oil, which should have drawn scrutiny from the Environmental Protection Agency. Modern engines are not supposed to consume significant oil between service intervals, yet regulators allowed VW to classify this as normal. medium
โš•๏ธ
Public Health and Safety
The dangers VW created · 5 points
01 The oil consumption defect creates an unreasonably dangerous safety hazard because it can cause sudden engine failure while vehicles are in operation at any time, under any driving conditions, and at any speed. This exposes drivers, passengers, and other road users to serious risk of accidents and injury. critical
02 Defective piston rings prevent the engine from maintaining proper oil levels and cause voluminous oil consumption that drivers cannot reasonably anticipate or predict. Owners have no reliable way to know when their oil will drop to dangerous levels between service visits. high
03 The defect produces harmful emissions including unburned hydrocarbons, carbon monoxide, nitrogen oxides, and particulate matter from burning oil. These pollutants contribute to air quality problems and pose dangers to public health in communities where affected vehicles operate. medium
04 Defective piston rings allow combustion gases to leak past the piston into the crankcase. These blow-by gases contaminate engine oil, reducing its lubricating effectiveness and accelerating engine wear. Contaminated oil leads to more frequent oil burning, creating a cycle that amplifies both safety risks and emissions. medium
05 When engines run low on oil, they risk catastrophic damage including seized components, warped cylinder heads, and complete engine failure. Multiple NHTSA complaints describe vehicles requiring new cylinder heads and other major engine repairs due to oil consumption damage. high
โš–๏ธ
Corporate Accountability Failures
How VW avoided responsibility · 7 points
01 VW had exclusive knowledge of the oil consumption defect through internal testing, warranty claim data, dealer service reports, and Technical Service Bulletins dating back to 2008. The company systematically concealed this material information that consumers could not reasonably discover until after purchase. high
02 VW developed and controlled all marketing materials, owner manuals, warranty booklets, and maintenance schedules for the Tiguan. None of these materials disclosed the oil consumption defect, and the company actively misrepresented the vehicles as safe, reliable, and high-quality. high
03 The company established systems requiring dealerships to provide detailed documentation of warranty repairs including descriptions of complaints, causes, and corrections. VW used this data to track the oil consumption problem across its dealer network but failed to implement adequate solutions. high
04 VW instructed authorized dealerships to tell consumers that oil consumption of one quart per 1,000 miles was acceptable and within normal operating parameters. This allowed the company to deny warranty claims and avoid expensive engine repairs while shifting the burden onto vehicle owners. high
05 The company monitored consumer complaints posted on social media platforms, automotive enthusiast websites, and NHTSA databases. VW published social media user guidelines and maintained an active online presence, demonstrating awareness of widespread owner dissatisfaction with oil consumption issues. medium
06 VW repeatedly revised its Technical Service Bulletin on oil consumption in 2008, 2020, 2022, and 2024, each time expanding the covered model years. Despite acknowledging the problem across nearly three decades of vehicles, every revision stated ‘Not applicable’ under Product Solution, offering no actual fix. high
07 The company benefits from unlawful conduct by selling more vehicles at higher prices while avoiding warranty obligations. Meanwhile, consumers are harmed through diminished vehicle value, ongoing safety risks, and the unremedied oil consumption defect that VW refuses to properly address. high
๐Ÿ“‰
Economic Fallout
How owners bear the costs · 6 points
01 Owners must frequently purchase additional quarts of oil between scheduled service intervals to prevent catastrophic engine damage. Many owners report adding oil every 2,000 to 3,000 miles, far more frequently than the 10,000-mile service intervals VW recommends. high
02 Vehicle owners face the financial burden of repeated dealership visits for oil top-offs, diagnostic testing, and attempts to secure warranty repairs. These visits consume time and money while the underlying defect remains unrepaired. medium
03 Class members suffer diminished vehicle value because cars with chronic oil consumption problems are less desirable in the used vehicle market. Owners cannot sell or trade their Tiguans without disclosing the defect, resulting in lower resale prices and economic losses. high
04 When engines suffer oil starvation damage, owners face repair bills of thousands of dollars. Multiple NHTSA complaints describe vehicles requiring new cylinder heads, valve stem seals, and other major engine components due to oil consumption problems. high
05 The defect disproportionately harms working families and lower-income drivers for whom a new car represents a major financial decision. Unexpected repair costs can push households living paycheck to paycheck into financial crisis, while VW as a massive multinational corporation can absorb occasional settlements. high
06 Owners lose the use of their vehicles during extended diagnostic periods or when engines fail completely. This disrupts their ability to commute to work, transport children, attend medical appointments, and fulfill other essential daily activities that require reliable transportation. medium
โณ
Exploiting Delay
How VW uses time as a weapon · 4 points
01 VW delays repairs by requiring owners to undergo oil consumption tests that span hundreds of miles and multiple dealership visits. During these tests, the underlying defect remains unrepaired while owners continue operating vehicles at risk of engine failure. high
02 The company pushes potential repairs past the standard warranty coverage period. Many owners discover the defect severity too late or too sporadically to secure warranty repairs before their 4-year or 50,000-mile coverage expires, leaving them responsible for expensive out-of-pocket repairs. high
03 Dealerships stall by repeatedly topping off oil and telling owners to return if the problem continues. This reactive approach wastes consumer time while avoiding the comprehensive engine disassembly and piston ring replacement needed to actually fix the defect. medium
04 VW has known about excessive oil consumption since at least 2008 but has never implemented a permanent solution. The 17-year delay between first acknowledging the problem and the current lawsuit demonstrates how corporations use time to avoid accountability while continuing profitable operations. high
๐Ÿ“ข
The PR Machine
How VW manages the narrative · 4 points
01 VW concealed the oil consumption defect from all marketing materials, sales presentations, and owner documentation. The company actively promoted Tiguans as safe, reliable, and high-quality vehicles while hiding known mechanical defects that contradicted these representations. high
02 The company systematically downplayed the defect by instructing dealerships to characterize excessive oil consumption as normal operating behavior. This messaging convinced many individual owners that nothing was wrong, preventing them from pursuing warranty claims or joining together to demand accountability. high
03 VW used Technical Service Bulletins instead of public safety recalls to limit public scrutiny. TSBs are internal dealer documents that avoid the mandatory owner notification, public filing requirements, and repair obligations that accompany formal NHTSA recalls. high
04 The company monitors social media platforms and automotive enthusiast websites for consumer complaints about its vehicles. VW maintains official social media presence and published user guidelines, demonstrating awareness of online discussions about the oil consumption problem. medium
๐Ÿ“‹
The Bottom Line
What this case reveals · 4 points
01 VW knowingly sold defective vehicles for over 17 years while concealing a dangerous engine defect from consumers. The company prioritized profit over safety by avoiding expensive recalls and repairs, instead shifting costs and risks onto unsuspecting vehicle owners. critical
02 The oil consumption defect demonstrates how corporate power and regulatory failures combine to harm consumers. Despite widespread complaints, internal company knowledge, and serious safety risks, VW faced no regulatory enforcement action and continued normal business operations. high
03 Owners paid premium prices for vehicles marketed as reliable and safe, but received defective products worth substantially less. VW has been unjustly enriched through sales revenue while consumers bear the financial burden of frequent oil purchases, lost vehicle value, and expensive repairs. high
04 This case exemplifies broader patterns of corporate misconduct under modern capitalism, where companies treat potential lawsuits and settlements as manageable business expenses rather than prioritizing consumer safety and transparency. Only collective legal action gives individual consumers a realistic chance to challenge corporate wrongdoing. high

Timeline of Events

December 2008
VW issues Technical Service Bulletin 17-08-03 acknowledging high oil consumption complaints in 2000-2010 vehicles. Bulletin offers no repair solution.
November 2020
VW revises TSB 17-18-06, expanding coverage to 2000-2021 model years. Company acknowledges customer complaints of high oil consumption but still provides no solution.
March 2022
VW updates TSB 17-18-06 to cover 2000-2022 model years, further expanding the scope of vehicles affected by oil consumption issues.
November 2022
Plaintiff Maria Lydia Martinez purchases a new 2023 Volkswagen Tiguan with EA888 engine from Stone Mountain Volkswagen in Georgia.
Early 2023
After driving approximately 2,500 miles, Martinez sees low engine oil warning. Dealership tells her oil consumption is normal and tops up the oil.
2023-2024
Martinez returns to dealership approximately six more times as low oil warnings recur every 2,000 miles. Each time, dealer adds oil and claims the consumption is normal.
September 2024
VW updates TSB 17-18-06 to cover 2000-2025 model years, acknowledging oil consumption issues across 25 years of vehicles while continuing to offer no actual fix.
January 2025
Martinez files class action lawsuit against Volkswagen Group of America in U.S. District Court for District of New Jersey, alleging fraudulent concealment, breach of warranties, and violations of Georgia consumer protection law.

Direct Quotes from the Legal Record

QUOTE 1 VW knew about oil consumption since 2008 allegations
“For example, on December 10, 2008, VW issued a Technical Service Bulletin (‘TSB’) No. 17-08-03 applicable to 2000-2010 model year vehicles (with the exception of the Routan). VW acknowledged customer complaints of high oil consumption that may exceed VW’s oil consumption standard.”

๐Ÿ’ก This proves VW had knowledge of excessive oil consumption problems in its engines for over 17 years before selling the defective 2022-2023 Tiguans.

QUOTE 2 TSBs offered no actual fix accountability
“However, despite its knowledge of the Defect as evidence by this TSB, under the ‘Product Solution’ section VW offers no solution, stating instead ‘Not applicable.'”

๐Ÿ’ก VW acknowledged the oil consumption problem in internal documents but deliberately provided no repair instructions to dealers, leaving owners without recourse.

QUOTE 3 Dealerships told owners it was normal accountability
“In response, Stone Mountain Volkswagen told Ms. Martinez it was ‘normal’ for her vehicle’s engine to consume oil, and added oil to the Martinez Vehicle engine.”

๐Ÿ’ก VW and its dealers actively misled consumers by characterizing excessive oil consumption as normal, preventing owners from understanding the severity of the defect.

QUOTE 4 Pattern of repeated oil consumption allegations
“Subsequently, Ms. Martinez returned her vehicle to Stone Mountain Volkswagen four more times, with an interval of about 2,000 miles, complained about the same low engine oil level warning. During each such visit, Stone Mountain Volkswagen topped up engine oil level and continued to reassure Ms. Martinez that such consumption of engine oil was ‘normal.'”

๐Ÿ’ก This demonstrates the repetitive nature of the defect and how VW avoided providing actual repairs despite numerous warranty claims.

QUOTE 5 Safety hazard from unpredictable failure health
“Therefore, this Oil Consumption Defect is unreasonably dangerous because it can cause engine failure while the Class Vehicles are in operation at any time and under any driving conditions or speeds, thereby exposing the Class Vehicle drivers, their passengers, and others who share the road with them to serious risk of accidents and injury.”

๐Ÿ’ก The defect creates immediate safety risks by causing sudden engine failure that could lead to accidents, distinguishing this from a mere inconvenience.

QUOTE 6 VW concealed defect from buyers profit
“Despite having pre-sale knowledge of the Defect, VW failed to disclose it to Plaintiff and other class members at the time of purchase or lease. Had it done so, Plaintiff and class members would not have purchased the Class Vehicles or would have paid substantially less for them.”

๐Ÿ’ก VW knowingly hid material information that would have affected consumer purchasing decisions, allowing the company to sell vehicles at higher prices.

QUOTE 7 Defective piston rings cause the problem allegations
“Specifically, as a result of defective piston rings in the EA888 engine, oil passes into the cylinder combustion chamber where it burns off.”

๐Ÿ’ก The complaint identifies the specific mechanical cause of the defect, showing this is a design flaw rather than a maintenance issue.

QUOTE 8 Defect causes increased emissions health
“Burning oil produces blue-gray smoke in the exhaust and releases harmful pollutants, such as partially burned or unburned fuel, and small particles resulting from the burning of oil.”

๐Ÿ’ก The defect creates environmental harm beyond just consumer economic damage, affecting air quality and public health.

QUOTE 9 VW expanded TSB coverage without fixing problem delay_tactics
“Similarly, on September 18, 2024, VW updated its TSB No. 17-18-06, where it expanded bulletin application from 2000 to 2025 model year vehicles (with the exception of the Routan and ID.4).”

๐Ÿ’ก VW repeatedly acknowledged the problem affects more and more vehicle models over 25 years but never implemented an actual solution.

QUOTE 10 Consumer complaint about oil consumption being told it’s normal accountability
“BOUGHT CAR ON 4/6/ 2020 BRAND NEW AT 2600 MILES OIL LITE CAME ON I CHECKED AND IT NEEDED 1 QUART.I WENT TO DEALER THEY CHECKED IT AND ADDED 1 QUART AND TOLD ME TO COME BACK WHEN IT HAPPENS AGAIN.”

๐Ÿ’ก NHTSA complaints show VW’s systematic approach of downplaying the defect and avoiding comprehensive repairs across its dealer network.

QUOTE 11 Owner told oil consumption standard is one quart per 1,000 miles pr_machine
“The SERVICE GUY CHECKING ME IN TOLD ME ‘VW CONSIDERS IT ACCEPTABLE FOR THEIR CARS TO BURN THROUGH A QUART OF OIL EVERY 1,000 MILES.’ YOU HAVE TO BE KIDDING ME. THIS CAR DOESN’T EVEN HAVE 16,000 MILES ON IT YET.”

๐Ÿ’ก VW established an official corporate position that extreme oil consumption is acceptable, allowing them to deny warranty claims systematically.

QUOTE 12 Multiple owners report identical experiences allegations
“WE HAVE SAME ISSUE WITH OUR 2018 TIGUAN AS MANY OTHER PEOPLE OUT THERE. AFTER OUR FIRST OIL CHANGE WE HAD ENGINE OIL LIGHT CAME ON… I OWNED MANY VW INCLUDING 2019 JETTA WE BOUGHT FOR MY SON AND NEVER HAD ANY ISSUES WITH BURNING OIL.”

๐Ÿ’ก The widespread and consistent pattern of complaints across different owners and model years proves this is a systematic defect, not isolated incidents.

QUOTE 13 Dealers acknowledge high oil consumption is common problem regulatory
“VW Dealership in West Lebanon NH is acknowledging that there is an issue with VW Tiguan engines burning oil at a higher rate than the standard… They stated they are seeing a lot more folks like myself coming in with lower mile Tiguan with this issue.”

๐Ÿ’ก Even VW’s own dealerships privately acknowledge the widespread nature of the defect, contradicting the company’s public stance.

QUOTE 14 Owner warned about major engine problem economic
“My vehicle low oil light cane on and I had just had the oil changed less than 2,000 miles. Took it to local dealership, they stated 2 seals needed to be replaced, they replaced them and stated I should be good but check the oil every so often to make sure. 500 miles goes by I need at least 1 qt of oil, took it back to dealership now they say I need a whole new Head and it is a common problem.”

๐Ÿ’ก The defect causes serious engine damage requiring expensive repairs like cylinder head replacement, not just inconvenient oil top-offs.

QUOTE 15 VW refuses warranty repairs accountability
“To date, VW has failed to correct the safety defect under VW’s warranty, requiring that Class Vehicle owners continue to operate their vehicles with the safety defect. Indeed, VW has not issued any adequate repairs to its dealers, has not issued a safety recall, and at most VW dealers top up engine oil level whenever consumers present their vehicles seeking warranty repairs.”

๐Ÿ’ก VW systematically violated its warranty obligations by refusing to provide actual repairs for a known defect, leaving owners with dangerous vehicles.

Frequently Asked Questions

โ“What vehicles are affected by this defect?
The lawsuit covers 2022-2023 Volkswagen Tiguan vehicles equipped with the EA888 2.0-liter TSI engine. However, VW technical bulletins acknowledge oil consumption problems in vehicles from model years 2000 through 2025.
โ“What exactly is wrong with these engines?
The engines have defective piston rings that fail to properly seal the combustion chamber. This allows engine oil to pass into the cylinder where it burns off, causing excessive oil consumption between scheduled maintenance intervals.
โ“How often do these vehicles need oil added?
Many owners report needing to add oil every 2,000 to 3,000 miles. Some NHTSA complaints describe consumption rates as high as one quart per 1,000 miles, far exceeding normal rates for modern engines.
โ“Is this dangerous?
Yes. The defect can cause sudden engine failure while driving at any speed. If the engine runs too low on oil, it can seize up or suffer catastrophic damage, potentially causing accidents that endanger the driver, passengers, and other road users.
โ“How long has Volkswagen known about this problem?
VW issued its first technical service bulletin acknowledging excessive oil consumption complaints in December 2008, over 17 years ago. The company has repeatedly updated these bulletins but has never provided an actual repair solution.
โ“Why hasn’t VW recalled these vehicles?
VW has not issued a safety recall despite knowing about the defect for years. The lawsuit alleges the company concealed the problem to avoid the massive costs of repairing or replacing engines in tens of thousands of vehicles.
โ“What do dealers say when owners complain?
According to the lawsuit and NHTSA complaints, dealers typically tell owners that high oil consumption is normal for VW engines. They add oil and send owners away without fixing the underlying mechanical defect.
โ“Will Volkswagen fix this under warranty?
The lawsuit alleges that VW refuses to properly repair the defect under warranty. Dealers typically only add oil rather than replacing the defective piston rings or other engine components that would actually solve the problem.
โ“What are the environmental impacts?
Burning oil produces harmful pollutants including unburned hydrocarbons, carbon monoxide, nitrogen oxides, and particulate matter. The defective piston rings also allow combustion gases to escape, reducing engine efficiency and further increasing emissions.
โ“What can I do if I own one of these vehicles?
Document all instances of low oil warnings and oil consumption. Keep records of dealership visits and any repairs attempted. Monitor the ongoing class action lawsuit. Consider consulting with a consumer protection attorney about your specific situation. Check your oil level frequently to prevent engine damage.
Post ID: 2186  ยท  Slug: volkswagen-sold-cars-with-defective-engines-and-then-refused-to-fix-them  ยท  Original: 2025-02-22  ยท  Rebuilt: 2026-03-20

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