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.
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.
The Allegations: A Breakdown
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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
Direct Quotes from the Legal Record
“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.”
๐ก This proves VW had knowledge of excessive oil consumption problems in its engines for over 17 years before selling the defective 2022-2023 Tiguans.
“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.'”
๐ก VW acknowledged the oil consumption problem in internal documents but deliberately provided no repair instructions to dealers, leaving owners without recourse.
“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.”
๐ก VW and its dealers actively misled consumers by characterizing excessive oil consumption as normal, preventing owners from understanding the severity of the defect.
“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.'”
๐ก This demonstrates the repetitive nature of the defect and how VW avoided providing actual repairs despite numerous warranty claims.
“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.”
๐ก The defect creates immediate safety risks by causing sudden engine failure that could lead to accidents, distinguishing this from a mere inconvenience.
“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.”
๐ก VW knowingly hid material information that would have affected consumer purchasing decisions, allowing the company to sell vehicles at higher prices.
“Specifically, as a result of defective piston rings in the EA888 engine, oil passes into the cylinder combustion chamber where it burns off.”
๐ก The complaint identifies the specific mechanical cause of the defect, showing this is a design flaw rather than a maintenance issue.
“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.”
๐ก The defect creates environmental harm beyond just consumer economic damage, affecting air quality and public health.
“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).”
๐ก VW repeatedly acknowledged the problem affects more and more vehicle models over 25 years but never implemented an actual solution.
“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.”
๐ก NHTSA complaints show VW’s systematic approach of downplaying the defect and avoiding comprehensive repairs across its dealer network.
“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.”
๐ก VW established an official corporate position that extreme oil consumption is acceptable, allowing them to deny warranty claims systematically.
“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.”
๐ก The widespread and consistent pattern of complaints across different owners and model years proves this is a systematic defect, not isolated incidents.
“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.”
๐ก Even VW’s own dealerships privately acknowledge the widespread nature of the defect, contradicting the company’s public stance.
“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.”
๐ก The defect causes serious engine damage requiring expensive repairs like cylinder head replacement, not just inconvenient oil top-offs.
“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.”
๐ก VW systematically violated its warranty obligations by refusing to provide actual repairs for a known defect, leaving owners with dangerous vehicles.
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