In Hong Kong, the Transport Department (TD) requires vehicles over 6 years old to pass an annual vehicle examination. For a city where the average car costs HK$300,000–$800,000 (before First Registration Tax doubles that), failing the exam is not just annoying — it is expensive. Rebooking takes 2–4 weeks. During that time, the car cannot legally be on the road.

For 車房 (che fong/workshops) in Kwun Tong, San Po Kong, Tsuen Wan, and Fo Tan, pre-examination services are a goldmine. Every car over 6 years needs one. Hong Kong's average car age is rising. The market is growing every year.

What TD Examiners Check

  • Brakes: Roller test for stopping force, balance between sides, handbrake efficiency
  • Emissions: Petrol cars: CO and HC. Diesel: smoke opacity. Hong Kong has strict emissions standards.
  • Lights: Headlight alignment (beam tester), all external lights functioning
  • Suspension: Visual inspection for worn components, play in joints
  • Steering: Free play measurement, power steering operation
  • Tyres: Tread depth (minimum 1mm), condition, age
  • Exhaust: No leaks, catalytic converter present and functioning
  • Body: No sharp edges, corrosion that affects structure

Your Pre-Examination Package

"TD Ready — HK$680"

  • Complete 45-minute inspection matching every TD checkpoint
  • Emissions pre-test with gas analyser
  • Headlight alignment check and adjustment if needed
  • Written report per item
  • Quote for any repairs

Average repair to pass: HK$1,500–$5,000. Total customer spend: HK$2,180–$5,680. At 15–20 examinations per month: HK$32,700–$113,600/month. That is HK$392,000–$1,363,000/year from pre-examination alone.

The Emissions Specialisation

Hong Kong has some of the strictest vehicle emissions standards in Asia. Cars that pass easily in other countries fail here. If you invest in a 4-gas analyser (HK$8,000–$15,000), you can pre-test emissions and fix problems before the customer wastes time at TD.

Common emissions fixes:

  • Spark plugs: HK$200–$600 (most common cause of high HC)
  • Air filter: HK$100–$300
  • Catalytic converter clean: HK$500–$1,500
  • Oxygen sensor: HK$800–$2,000

Track every examination date in Mekavo. Remind customers 2 months before expiry. Free for Hong Kong workshops.