Owner of Xiaomi SU7 Ultra reports engine burnout after extreme use and seeks specialized repair in Russia

Yuri, an automotive enthusiast residing in Minsk, faces a technical and financial impasse after the propulsion system of his electric hypercar collapses. The vehicle, a rare Xiaomi SU7

The incident occurred after intense use sessions in drag racing competitions, a modality in which the model stands out for its aggressive acceleration. Atualmente, the car is in a workshop in Moscou, where specialists are trying to rebuild the damaged component piece by piece to avoid total loss of the system.

The situation involves contractual and logistical complexities:

– The car was purchased via leasing and the installments continue to be charged regularly;

– The warranty is non-existent due to the nature of the purchase of a used and promotional vehicle;

– The owner alleges a manufacturing defect, while the seller points out misuse on the tracks.

Extreme performance and the moment of failure

The breakdown occurred suddenly on a day without competitive activities, shortly after the driver explored the tram’s high performance mode. Relatos indicate that the vehicle’s acceleration is described as a “teleportation” experience, capable of covering 402 meters in just 8.85 seconds and reaching peak speeds of over 250 km/h during the tests.

Experts at Moscou analyzed the damaged hardware and pointed to thermal stress as the likely cause of the control unit’s collapse. Embora If a pre-existing defect in the manufacturing of the part is suspected, the history of recurrent overloads during speed tests is considered a determining factor for premature wear of internal components.

The estimated loss is significant, given that the vehicle has a market valuation of close to US$80,000 and does not have insurance coverage for this specific type of mechanical damage. The absence of local support in Belarus forced the automobile to be relocated to Rússia, where the technical workforce has adequate tools to deal with the complex architecture of Xiaomi.

Deadlock over warranty and responsibilities

The model was acquired in the summer of 2025, brokered by the importer Teslacars, which initially brought the car for promotional purposes before passing it on to the end customer. The company maintains that the sale was carried out between legal entities and at a reduced price, conditions that, according to the contract, exclude the application of traditional consumer protection laws and the standard guarantee.

Yuri formalized a pre-procedural complaint, arguing that drag mode is a native factory functionality, designed to withstand power peaks of up to eight seconds. In the owner’s view, the use of the resource should not compromise the structural integrity of the engine, creating a hidden defect in the product, regardless of the intensity of previous use.

Restoration process and expectations

The technical team responsible for the repair identified that the control unit’s main processor remained intact, which keeps the possibility of recovering the system alive without the need for a complete replacement. The restoration work is thorough and involves the complete disassembly of the module to replace the burnt elements.

If the technical intervention does not return functionality to the hypercar, the owner is studying legal measures to attempt to cancel the purchase contract, although he admits reluctance due to the length of the process. The case highlights the logistical and maintenance risks faced by owners of ultra-performance electric vehicles in markets where support infrastructure is still limited.

The Xiaomi SU7 Ultra remains a technical reference in the segment, promising acceleration from 0 to 100 km/h in less than two seconds. However, the episode serves as a warning about the physical limits of electronic components when subjected to regimes of continuous extreme use, even in vehicles designed for high performance.