Summary of Key Points
Recently, multiple new Volkswagen Sagitar models have been experiencing issues where white powder comes out from the air conditioning vents, causing owners concern about health risks and potential depreciation of their vehicles. While the company claims the powder is polyvinyl alcohol (a component in eye drops) and harmless, experts argue that long-term inhalation can irritate the respiratory system. Owners are reluctant to have the central control unit replaced with a new evaporator due to concerns about depreciation and possible noise issues, and are demanding compensation. Some 4S dealers have attempted to resolve the issue by offering extended warranties and cash coupons in exchange for signing confidentiality agreements. Meanwhile, Volkswagen's sales continue to decline, suggesting that these quality problems may be exacerbating its difficulties.
Detailed Analysis
#### 1. The Problem with Powder Leakage from New Vehicles
The powder leakage is not a isolated issue but affects models such as the Sagitar and Sagitar L. The official explanation is that there was a slight deviation in the manufacturing process by the supplier: too much of the raw material for the hydrophilic coating on the air conditioning evaporator (which prevents water penetration) was used, and the excess material did not form a uniform layer during drying, resulting in white particles being blown out when the air conditioner is turned on. In simple terms, the coating on the air conditioning components was not applied properly and has started to flake off.
Owners have reported noticing the powder leakage shortly after receiving their vehicles, with some even indicating it was present from the time of manufacture (as evidenced by videos of the delivery process). This indicates that the problem originated during production and is not due to improper use by the owners.
#### 2. Is the Powder Really Harmless? The Disagreement Between Officials and Experts
The company insists that the powder is polyvinyl alcohol, which is safe and harmless, citing eye drops as a example of its use. However, expert Yuan Shuai from the Zhongguancun Internet of Things Alliance disagrees:
- Difference in Exposure: Eye drops come into contact with the eyes or skin, while the powder is inhaled into the lungs. Even if it is food-grade, the metabolic process in the lungs is completely different; for example, eating flour may not be harmful, but inhaling too much can lead to pneumoconiosis.
- Physical Irritation: Long-term inhalation of microscopic particles can damage the lung alveoli mucosa, potentially worsening conditions like rhinitis and asthma, and even affecting healthy individuals.
- Doubts About the Composition: The company’s claim about the powder’s composition is based on its own tests without verification by third-party institutions. There is a possibility that the powder contains metal fragments or processing additives, which could be more dangerous.
The company’s assertion of harmlessness seems to be an attempt to downplay the issue without scientific evidence.
#### 3. The 4S Dealers’ Attempts to Silence Owners
Owners are seeking either resolution of the health hazard or compensation for the damage caused by the problem. However, the 4S dealers’ approach is seen as unfair:
- They offer a three-year extended warranty and a $1,000 coupon in exchange for signing a confidentiality agreement that prohibits complaints on social media.
- Owners are frustrated, saying, “A few small compensations and they expect us to remain silent? That’s not enough.” Replacing the central control unit can significantly reduce the value of the used car and may also cause noise issues, making such compensation insufficient.
This attempt to silence owners has only increased their anger and determination to seek justice.
#### 4. The Concerns About Replacing the Central Control Unit
Owners are hesitant to replace the evaporator because it requires disassembling the entire central control panel, which is like undergoing major repairs shortly after purchasing the car:
- Depreciation of Used Cars: Used car sellers may assume there is a quality issue and lower the vehicle’s value. For example, a new car worth 200,000 yuan might be sold for 170,000 yuan if the central control unit has been replaced.
- Future Maintenance Issues: Reassembling the panel can lead to gaps and noise, making future repairs more complicated.
Owners’ demands for lifetime warranty on the central control unit and compensation for depreciation are reasonable, as the manufacturer should bear the costs of these quality issues.
#### 5. Declining Sales: A Further Blow to Volkswagen’s Reputation
The powder leakage incident has added to Volkswagen’s already struggling sales situation:
- Sharp Drop in Sagitar Sales: Only 9,806 Sagitars were sold in April, a decrease of more than 7,000 from March, leading to a significant drop in rankings.
- Overall Sales Decline: Volkswagen’s total sales in 2025 decreased by 4.3% year-on-year, and sales from January to April this year have dropped by another 17.3%. This is due to poor sales of fuel-powered vehicles and slow progress in transitioning to electric models.
- Price Cuts to Boost Sales: To boost sales, Volkswagen reduced the price of the Sagitar by 50,000 yuan to 79,800 yuan. However, such cost-cutting measures may have led to lax quality control, as evidenced by this issue.
If the quality problems are not addressed, sales will continue to decline, creating a vicious cycle.
Conclusion
The air conditioning powder leakage problem at Volkswagen is a result of both a quality defect and poor handling of the issue by the company. The official’s claim that the powder is harmless lacks scientific credibility, and the 4S dealers’ attempts to suppress information have only exacerbated customer dissatisfaction. For owners, both health and financial losses need to be addressed seriously. For the manufacturer, it is better to take sincere action to resolve the problem; otherwise, its damaged reputation will make it difficult to recover sales.