Don’t Just Clean It Off: The Hidden Impact of Volcanic Ash on Your Car

Volcanic ash can affect several vehicle components that are not immediately visible, particularly those that play an important role in your car's performance and safety. Here are some areas that deserve attention after exposure to volcanic ash.

1. Engine Air Filters Can Become Dirty More Quickly

The engine air filter is designed to prevent contaminants from entering the combustion chamber. When driving through areas affected by volcanic ash, fine particles can accumulate in the filter much faster than normal.

If left unchecked, restricted airflow may affect engine performance and fuel efficiency over time.

2. Cabin Air Filters and Interior Air Quality May Be Affected

Volcanic ash can also enter the vehicle through its ventilation system. As particles accumulate in the cabin air filter, the quality of the air circulating inside the vehicle may decline.

In addition, a clogged cabin filter can force the air conditioning system to work harder to maintain optimal airflow and cooling performance.

3. Tires and Wheel Areas Can Collect Ash Deposits

When driving on roads covered with volcanic ash, particles can accumulate around the tires and wheel assemblies.

Although this may seem minor, ash deposits mixed with dust, sand, and moisture can create additional buildup that warrants closer inspection, especially if the vehicle is frequently driven in affected areas.

4. Brake Components May Be Exposed to Fine Debris

Airborne volcanic ash can settle around the braking system. For this reason, regular inspections are recommended after driving in environments with significant ash exposure.

Routine checks can help ensure that the braking system continues to function properly and supports overall driving safety.

5. Potential Corrosion Risks from SO₂ Exposure

In addition to volcanic ash, volcanic eruptions can release sulfur dioxide (SO₂) gas. Under certain conditions, this gas can react with water vapor in the atmosphere to form acidic compounds.

Although the effects may not be immediately noticeable, prolonged exposure may increase the risk of corrosion on certain vehicle components, particularly exterior metal parts that are regularly exposed to the environment.

Vehicle care after volcanic ash exposure goes beyond simply washing the exterior. The following measures can help maintain your vehicle's condition and performance.

1. Avoid Starting the Engine Immediately if Heavy Ash Has Accumulated

If your vehicle has been parked for an extended period in an ash-affected area, perform a quick visual inspection before starting the engine.

Check for excessive ash accumulation around ventilation openings and under the hood. This simple precaution may help reduce the risk of ash particles being drawn into the vehicle's systems.

2. Use the Recirculation Mode on Your Air Conditioning System

When driving through areas still affected by volcanic ash, switch your air conditioning system to recirculation mode.

This setting helps minimize the amount of ash entering the cabin and may reduce the burden on the cabin air filter.

3. Reduce Speed While Driving

Volcanic ash suspended in the air can reduce visibility. Vehicles traveling at higher speeds may also create additional dust clouds, making visibility even worse.

Driving at a moderate speed and maintaining a safe following distance can help improve safety in these conditions.

4. Avoid Non-Essential Travel

If ashfall is still ongoing, consider limiting vehicle use until conditions improve.

The more frequently a vehicle is driven through ash-contaminated areas, the greater the chance that fine particles will enter critical components and systems.

5. Inspect Filters and Other Components More Frequently

After passing through areas affected by volcanic ash, consider checking the engine air filter, cabin filter, and other exposed components sooner than usual.

Early inspections can help identify ash buildup before it affects vehicle performance and may help maintain key systems’ reliability.

Volcanic ash is not simply an aesthetic issue. Fine airborne particles can affect important vehicle components, including engine air filters, air conditioning systems, wheel assemblies, and braking components. For this reason, after exposure to volcanic ash, vehicle owners should pay attention not only to their cars’ exterior appearance but also to the components that contribute to performance, reliability, and driving safety.

Vehicle-related risks can arise at any time. That is why Motor Vehicle Insurance by MSIG Indonesia offers protection designed to help safeguard your vehicle. With the right coverage in place, you can enjoy greater peace of mind wherever the road takes you. Learn more about our vehicle insurance solutions and speak with one of our representatives for further assistance.