How to Prepare Your Car for Nairobi’s Long Rains

As the March–May 2026 long rains approach—with peak rainfall expected in April—Nairobi drivers know what’s coming: flooded roads, slippery surfaces, reduced visibility, and hidden potholes along Ngong Road, Waiyaki Way, and beyond. At Chamwa Motors on Dagoretti Corner, Ngong Road, we’ve seen too many breakdowns and costly repairs that could have been avoided with simple pre-rain preparation. Don’t wait until your wipers fail in a downpour or your brakes fade on wet tarmac.

Here are the essential checks to keep your car safe and reliable during the long rains.

1. Wipers and Visibility

Worn wipers are one of the top causes of rainy-season accidents in Nairobi. Inspect the blades for streaks, cracks, or skipping. Replace them if they’re over six months old—high-quality silicone or rain-repellent blades work best. Top up your washer fluid with a rain-repellent additive for clearer windshields. Also test your headlights, taillights, and indicators; dim or faulty lights make you invisible in heavy rain.

2. Brakes: Stop Safely on Wet Roads

Wet roads dramatically increase stopping distances. Have your brake pads checked—they should have at least ¼ inch (about 6mm) thickness remaining. Inspect discs for scoring and ensure brake fluid is at the correct level and not contaminated. If your car pulls to one side or the pedal feels spongy, book a service immediately. Reliable brakes can prevent rear-end collisions in stop-and-go traffic.

3. Rust Prevention and Undercarriage Protection

Nairobi’s muddy water and road salt accelerate rust on the underbody, exhaust, and suspension components. Before the rains intensify, wash the underside thoroughly and apply an anti-rust coating or underseal. Pay special attention to wheel arches and seams where moisture traps easily. Regular undercarriage washes during the season will extend your car’s life.

4. Flood Damage Avoidance

Flash floods turn low-lying areas into traps. Never drive through water deeper than the bottom of your doors—water can enter the air intake and cause hydrolock, destroying your engine. Check your vehicle’s ground clearance and avoid known flood spots. If your car does get submerged, do not attempt to start it. Disconnect the battery immediately and call for professional towing to prevent short-circuits in the ECU and wiring.

5. AC vs. Rainy Season: Switch Smartly

Your air conditioning system, vital for hot dry spells, can trap moisture and promote mould during constant rain. Use the AC on “recirculate” less often and run the defroster (with AC on) periodically to dry the system and prevent foggy windows. Consider switching to fresh air mode when humidity is high to reduce interior dampness and musty smells.

Bonus Quick Checks

• Tyres: Ensure at least 3mm tread depth for better grip and to reduce hydroplaning.

• Battery and electrics: Clean terminals and seal connections against moisture.

• Emergency kit: Carry a torch, reflective jacket, and basic tools.

Taking these steps now can save you thousands in repairs and keep you moving safely. At Chamwa Motors, we offer a comprehensive rainy-season service package including brake inspection, wiper replacement, rust treatment, and full diagnostics—all at affordable Nairobi rates.

Book your pre-rain preparation today via WhatsApp or visit us at Dagoretti Corner, Ngong Road. Drive safe this long rains season!