Hybrids and electric cars have a reputation for being “maintenance-free”. It is a convenient myth that can cost dearly. Yes, they have fewer classic jobs, but new ones appear — specific to the electric drive and high voltage. At Hybrid Master in Katowice we specialise in servicing hybrids and EVs and know what really needs attention.
This article explains what servicing a hybrid and an EV involves, how to look after the traction battery and why some jobs matter more here than on a petrol car.
1. The “hybrids need no servicing” myth
A hybrid or electric drivetrain really does remove some classic faults, but it does not exempt you from servicing. The battery, the electronics cooling, the brakes, the AC with its electric compressor and the 12 V battery all need checking. A neglected “electric” car can generate expensive failures that one inspection would have prevented.
2. The traction battery — the heart of the drive
The high-voltage battery is the most expensive component, but also one of the most durable — well-used batteries last many years and hundreds of thousands of kilometres. The key is state-of-health (SOH) diagnostics, which show the real capacity and cell condition.
What we watch for on the battery
3. Fluids and electronics cooling
Hybrids and EVs have separate cooling circuits — for the battery, inverter and power electronics. The fluid in these systems loses its properties over time and needs changing per the manufacturer’s schedule. A hybrid adds classic engine oil (changed once a year), and an EV has oil in the reduction gear. Neglecting electronics cooling risks overheating and a costly failure.
4. Brakes — used less, but not forgotten
Thanks to regenerative braking, the pads and discs on a hybrid and EV work less and wear more slowly. Paradoxically this creates a new problem: corrosion. Little-used discs and calipers rust, and pads can seize. So the brakes on such a car need regular checking, cleaning and lubrication of the guides — even if the friction material is still thick.
5. AC with an electric compressor
6. The 12 V battery — small but crucial
Besides the traction battery, a hybrid and EV have an ordinary 12 V battery that powers the electronics and “wakes” the whole system. It is smaller than in a petrol car, but when it weakens it can cause strange, hard-to-diagnose faults — from starting problems to warning messages. It is worth checking its condition and replacing it preventively.
7. How often to service a hybrid and EV
A rough maintenance plan
8. Hybrid and EV servicing in Katowice — Hybrid Master
At Hybrid Master in Katowice we specialise in servicing hybrids (Toyota, Lexus, Honda) and electric cars: battery diagnostics (SOH), cooling-system service, brakes with guide cleaning, AC with POE oil, oil and filters. We understand high-voltage specifics and work safely. Prices are in our price list.
Frequently asked questions
Summary
- The “maintenance-free” hybrid is a myth — it needs different but real servicing.
- Battery: SOH diagnostics and working cooling are the basics.
- Brakes used less = risk of corrosion; they need cleaning.
- The AC requires POE oil — never PAG.
- Change hybrid oil once a year; don’t forget the 12 V battery.
Want to look after your hybrid or EV? Book a service at Hybrid Master — see the price list or contact us.
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