China's Repair Shops Fight for the Last Profitable Job
A car rolls into a repair bay, and the shop owner is not hoping for an oil change or a new set of tires. The job worth waiting for is a brake pad replacement, a shock absorber swap, or a chassis diagnosis that requires lifting the vehicle and crawling underneath.
That preference is not guesswork. A 2025 annual development report on China’s automotive aftermarket, produced by the China Association of Automobile Manufacturers and the consultancy Hejun, cites store-level sample data from F6, an aftermarket software and data provider. The figures show how uneven repair profits are: replacing a tire carries an average gross margin of about 22 percent, a battery swap about 26 percent, a shock absorber roughly 45 percent and brake pads around 50 percent.
The gap explains a quiet strategic shift across China’s independent service chains, the platforms often grouped together as the Tuhu-style players. These businesses built their scale on standardized, quick-turn services such as tire fitting and oil changes, which win customers but leave thin returns. As the country’s car parc ages and more vehicles move past their warranty periods, the chains are pushing into the deeper mechanical work that dealerships have long treated as their most reliable profit pool.
For years, the 4S dealership model, named for sales, service, spare parts and surveys, controlled that pool. New-car sales in China have grown fiercely competitive, with price cuts compressing margins on the showroom side. That has made service bays more important to dealership profitability, just as independent chains are learning how to compete for the same jobs.
The independent side has advantages. Platform chains can aggregate demand across thousands of stores, negotiate parts purchases at scale and use digital booking to keep bays busy. Their challenge is trust and capability: chassis and brake work requires trained technicians and reliable parts, and a poorly executed repair is far more visible, and more dangerous, than a slow tire change.
The report’s margin numbers also hint at where the next competition will land. Routine consumables are easy to price transparently and easy for customers to compare across shops. Deeper repairs are harder to benchmark, which protects margins but also invites suspicion. Chains that can standardize diagnosis and publish clear pricing for complex jobs may be able to take share without triggering the price wars that have already flattened tire and battery margins.
China’s aftermarket is enormous because its car fleet is enormous, and the mix of vehicles is changing as electric models take a larger share of new sales. Electric cars need less engine maintenance but still wear through tires, brakes and suspension components, and their heavier batteries put extra load on chassis parts. That suggests the high-margin jobs of the future may look different from the ones of the past, even as the basic economics of the repair bay stay the same.