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.

Note on scenarios: The shops, names, addresses, and case reference numbers in this article are fictional and used solely to illustrate how the cited statutes operate in practice. Any resemblance to actual shops, owners, or events is coincidental. The statutes, regulations, and agency procedures cited are real and current as of publication.