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AC Problems

Car AC Bad Smell

A bad or unpleasant odor coming from the car AC vents when turned on. The smell may be musty, sour, or like dirty socks.

Diagnosis

Possible Causes

Bacteria and Mold on Evaporator

High likelihood

Bacteria and mold buildup on the moist evaporator surface causes bad odor.

Dirty Cabin Filter

High likelihood

A dirty filter accumulates dust and moisture, becoming a source of odor.

Inspection Steps

How to Diagnose?

  1. 1 Inspect cabin filter and replace if dirty
  2. 2 Turn AC on and smell the vent air to identify the odor type
  3. 3 Visually inspect evaporator if accessible
  4. 4 Check for water leaks inside the cabin
Cost

Repair Cost

Estimated Repair Cost
50–300SAR

Depends on cause and vehicle type

* Prices are estimates and may vary depending on vehicle type and condition. Contact us for an accurate quote.

FAQ

Frequently Asked Questions

How do I get rid of car AC bad smell?

Replace the cabin filter and have the evaporator and air ducts cleaned and sanitized. This removes odor-causing bacteria.

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