How to drive safely through flooded roads
During the rainy season, flooding and waterlogged streets are common problems that drivers in Bangkok and many other cities cannot avoid. Whether you use your own vehicle or rely on a Car Rental Bangkok service for daily travel, knowing how to drive safely through flooded roads is extremely important.
Driving through deep water without proper caution can seriously damage the engine, cause the vehicle to stall, or even create dangerous situations for drivers and passengers. Here are some important safety tips for driving through floodwater properly, along with useful advice for anyone using a Rental Car during the rainy season.

Important Checks Before Driving Through Floodwater
1. Always Evaluate the Water Level First
Never follow the car in front blindly. Hidden potholes, open drains, or uneven road surfaces may be invisible under the water.
As a general rule:
- If the water reaches the lower edge of the doors
- Covers more than half of the tire
- Or if you cannot clearly see the road surface
This is especially important for smaller sedans from Car Rental services because water can enter the engine air intake and cause severe engine damage.
2. Turn Off the Air Conditioner
One important tip recommended by mechanics is to turn off the air conditioner before driving through floodwater.
The radiator fan inside the engine compartment can spray water into sensitive electrical components and increase the risk of engine damage. Once you safely pass the flooded area, you can turn the air conditioning system back on.
3. Watch for Warning Signs After Passing Through Water
After driving through floodwater, carefully observe the vehicle for unusual symptoms such as:
- Strange noises
- Burning smells
- Warning lights on the dashboard
- Engine hesitation or rough performance
If any of these problems occur, stop the vehicle safely and inspect it immediately.

For people whose cars are under repair or those who frequently travel in Bangkok and other provinces during the rainy season, choosing a monthly Rental Car service can be a practical and convenient solution. This helps drivers travel more confidently during unpredictable weather conditions.
For larger families or group travel, Van Rental Bangkok services are also a comfortable option, especially for long-distance trips during heavy rain.
Head Office Don Mueang Car Rental
Located at 279/57 Vibhavadi Rangsit Road, Sanambin Subdistrict, Don Mueang District, Bangkok 10210
Opening hours 0800 – 2000 hours Everyday
Call center 02 – 002 – 4606
092-284-8660 / 090-638-4888 / 086-993-3082
Line ID : @ecocar
Email : info@thairentecocar.com
WhatsApp : 0869933082
Siam Commercial Bank
Account number : 605-2588466
Account name : Thai Rent Eco Car Co., Ltd.
Swift - code เลขที่ SICOTHBK
Siam Commercial Bank Public Company Limited, Ongkharak Branch
Category : Bank
Address 439 Moo 1, Rangsit-Nakhon Nayok Road, Ongkharak Subdistrict, Ongkharak District Nakhon Nayok Province 26120 Telephone 037-381-258
Thai Rent Eco Car Co., Ltd. Head Office Taxpayer No. 0105556003679 No. 279/57 Grand I Design Village Vibhavadi Rangsit Road, Sanam Bin Subdistrict Don Mueang District, Bangkok 10210
Call 02-0024606
Vibhavadi Rangsit Road
**Read** Rental contract conditions (click)
