EV Knowledge Center

EV Academy

Practical Chinese EV education for repair shops, distributors, importers, fleet operators, and owners.

Accurate parts matching

Read an OE part number and compare the listing with your vehicle before you inquire.

Latest Academy Articles

Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Wiper streaks or cracked and hardened rubber blades

The wipers do not wipe cleanly and leave streaks, and the rubber blades are cracked or hardened.

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Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Sunroof noise or water leaks; check for dust accumulation and blocked drains

The sunroof makes abnormal noises or binds during operation, or water enters the cabin.

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Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Persistent body or steering wheel vibration and uneven tyre wear

Persistent vibration while driving or uneven tyre wear occurs.

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Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Oil pressure warning light on; first stop the engine and check the oil level

The oil pressure warning light is on.

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Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Unable to start when the key battery is low or the key is not detected

Unlocking or key recognition fails when the smart key battery is low.

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Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Large water droplets or accumulated water inside the headlamp

Noticeably large water droplets or accumulated water appear inside the lamp, beyond slight misting.

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Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Weak starter and engine will not start

The starter only makes a sound or turns weakly, the headlamps dim and the horn weakens.

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Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Engine overheating, reduced power or steam

The coolant temperature reaches the red zone, the engine accelerates weakly, or steam comes from the engine compartment.

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Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Brake fluid below the lower limit or accompanied by reduced braking efficiency

The brake fluid is below the lower limit on the reservoir.

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Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Musty or pronounced odour from the air conditioning

A pronounced odour occurs when the air conditioning operates.

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Funbyautoparts
Fault diagnosisIntermediate2 min read

Haval JOLION: Reduced air conditioning cooling; check for blocked condenser airflow

Air conditioning cooling is insufficient, and heat exchange surfaces may be covered with debris.

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Funbyautoparts
Tyres, Wheels and Bearings3 min read

Haval JOLION Humming While Driving: Distinguishing Tyre Clues from Wheel-Bearing Findings

A JOLION humming noise alone cannot establish bearing failure. Separate road, tyre and wheel-end findings before deciding on replacement.

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