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Singapore car repair guide

BYD Atto 3: Aircon not cold / weak cooling in hot weather

If you are seeing this symptom in Singapore, use this as a pre-workshop checklist. The goal is to identify the likely root cause, avoid replacing the wrong part, and know the fair repair range before approving work.

Fair SG range
$80–$380
Red-flag quote
$1,200+
Likely fix
Cabin filter, refrigerant leak test, software/thermal-management scan

What this usually means

On EVs, weak cooling can be refrigerant level, cabin filter restriction, compressor control, or thermal-management software. Start with cabin filter + refrigerant leak check before replacing the electric compressor. Compressor replacement should be the last step, not the first quote.

What to ask the workshop before approving repair

  • • Show the diagnostic fault codes.
  • • Show photo/video proof of the failed part.
  • • Give an itemised quote for parts and labour.
  • • Explain why cheaper common fixes were ruled out.
  • • Use/confirm: EV-safe aircon service equipment

This is not a final diagnosis. It is a money-saving checklist before you go workshop.

Other problems on this BYD Atto 3 (2022-present)

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