The Accountability Gap: OLG Celle Overturns Volkswagen’s Dieselgate Settlement with Rupert Stadler

In a landmark decision that ripples through the highest echelons of corporate governance, the Higher Regional Court (OLG) of Celle has declared the Volkswagen shareholders’ approval of a liability settlement with former Audi CEO Rupert Stadler ineffective. The ruling (Az. 9 U 93/22) marks a significant victory for investor advocates who have long argued that the automotive giant’s attempts to "close the book" on the Dieselgate scandal lacked the necessary transparency and fiduciary diligence required by German corporate law.

The decision, delivered by the 9th Civil Senate, addresses a pivotal question: To what extent can a corporation shield its former executives from liability through settlements that shareholders are asked to ratify without a full disclosure of the underlying financial realities? While the judgment is not yet final, the court’s refusal to grant leave to appeal places Volkswagen in a precarious legal position, forcing the company to weigh its options, including a potential non-admission complaint to the Federal Court of Justice (BGH).

1. The Core Conflict: Transparency vs. Expediency

The legal saga stems from a 2021 initiative by the Volkswagen Supervisory Board to settle claims against former top managers, including ex-CEO Martin Winterkorn and former Audi boss Rupert Stadler, as well as their respective directors and officers (D&O) liability insurers. The total settlement volume was approximately 288 million euros.

Under the proposed agreement, Stadler was to pay 4.1 million euros, while Winterkorn was slated for 11.2 million euros. In exchange, the company would grant them a full release from further liability claims. However, the OLG Celle has now scrutinized the process through which shareholders were informed of these terms.

The court found that the information provided to the Annual General Meeting (AGM) regarding the financial capacity of the former managers was fundamentally insufficient. Specifically, the Supervisory Board failed to provide a robust factual basis for why the settlement amounts were considered "adequate." The court noted that shareholders were not adequately informed about whether the settlement amounts reflected the true extent of the managers’ assets or whether the board had even conducted a thorough investigation into those assets.

"If one justifies the personal contribution of an executive by their financial capacity, one must either provide shareholders with a sound factual basis or admit that no such basis was determined," argued Oliver Wilken, counsel for the Protection Association of Capital Investors (SdK). With damages attributed to Stadler estimated at around 300 million euros, the 4.1 million euro settlement appeared to many investors as a mere fraction of the actual potential liability.

2. Chronology of the Dieselgate Fallout

The road to the current legal impasse is paved with nearly a decade of litigation and corporate restructuring.

• September 2015: The "Dieselgate" scandal erupts when the EPA reveals that Volkswagen had installed "defeat devices" in millions of diesel vehicles to cheat emissions tests. CEO Martin Winterkorn resigns shortly thereafter.
• 2015–2021: Volkswagen enters a prolonged phase of internal and external investigations. The cost of the scandal, including fines, legal fees, and vehicle buybacks, eventually swells to approximately 33 billion euros.
• 2021: The Supervisory Board reaches a comprehensive settlement agreement with former executives and insurers to prevent further drawn-out civil litigation.
• September 30, 2025: The Federal Court of Justice (BGH) issues a watershed ruling (Az. II ZR 154/23), quashing a previous OLG Celle decision that had favored VW. The BGH mandates a re-evaluation of the settlements, citing significant gaps in the information provided to shareholders.
• June 18, 2026: Following the BGH ruling, Volkswagen attempts to re-ratify the settlements. Shareholders approve the deals with overwhelming majorities (97.46% and 99.99%), but these votes are almost immediately challenged by new lawsuits.
• December 2025: Rupert Stadler is finally convicted of fraud in a criminal court with a legally binding verdict. This development renders the original settlement terms, which were contingent on the absence of a criminal conviction, obsolete.

3. The Legal Basis of the OLG Celle Ruling

The OLG Celle’s decision focuses on the duty of the Supervisory Board to protect the company’s assets. By failing to disclose the depth—or lack thereof—of their due diligence regarding Stadler’s personal wealth, the board left shareholders in the dark.

The court emphasized that the argument of "limited financial capacity" is not a "get out of jail free" card. If a board claims an executive cannot afford to pay a higher settlement, they must demonstrate that they have verified the executive’s financial situation. The court found that the Supervisory Board merely asserted that Stadler’s financial capacity did not match the damage caused, without presenting evidence or a transparent analysis of his net worth.

This lack of transparency prevented shareholders from exercising their voting rights in an informed manner. Consequently, the resolution approving the settlement was declared void.

4. Official Responses and Corporate Strategy

Volkswagen’s response has been one of defiance, coupled with the acknowledgment of a long road ahead. A company spokesperson stated: "We do not share the court’s assessment. We will continue to defend our position and will examine all legal remedies against the decision in detail."

The case of Martin Winterkorn has been legally decoupled from Stadler’s, meaning the current OLG Celle ruling does not automatically dictate the outcome for the former CEO. However, the legal precedents established here will undoubtedly color the discourse in the remaining proceedings.

Regarding Stadler specifically, Volkswagen is in a difficult spot. Because Stadler’s criminal conviction in December 2025 triggered a clause that made the previous settlement null and void, the company has already entered into new, informal negotiations with him. However, according to recent disclosures, a new agreement is not currently on the horizon.

5. Implications: The Long-Term Consequences for Corporate Governance

The OLG Celle ruling serves as a warning to German corporations: the "shareholder democracy" is not merely a formality. When boards ask for the ratification of settlements involving top-tier management, they must be prepared to open their books to the scrutiny of the owners.

Impact on Future Liability Settlements

This ruling will likely force German companies to change how they handle management liability. Future settlements will likely require:

1. Independent Asset Valuations: Boards will be under pressure to employ third-party auditors to verify the net worth of executives before proposing settlement figures.
2. Enhanced Disclosure: The information provided in AGM invitations will need to be significantly more granular, explaining the rationale behind settlement amounts to avoid claims of "misleading" or "insufficient" information.
3. Increased Litigation Risk: With the BGH and OLG Celle showing a willingness to intervene, activist shareholders and investor associations now have a potent weapon to challenge board decisions, potentially leading to more transparent, albeit more expensive, legal outcomes.

The Reputational Shadow

For Volkswagen, the scandal is not yet history. The lingering legal battles serve as a constant reminder of the company’s darkest hour. Despite the massive financial costs already absorbed, the inability to finalize these internal settlements suggests that the "cultural transformation" promised by the company post-2015 is still struggling to gain traction in the boardroom.

As the case moves toward potential review at the Federal Court of Justice, the automotive industry will be watching closely. The question is no longer just about the money lost in the diesel crisis, but about the fundamental accountability of those who held the steering wheel when the company veered off course. The OLG Celle has signaled that in the eyes of the law, the "financial capacity" of an individual executive does not outweigh the shareholders’ right to transparency and truth.