Hybrid Repairs & Servicing – Stanway

A hybrid needs servicing for both its petrol or diesel engine and its electric system, and it takes the right training to look after both. All Trans Autos service and repair full hybrids, mild hybrids, and plug-in hybrids of most makes, with technicians qualified to IMI Level 4 for high-voltage systems.

Two systems, one service

Hybrids combine an engine with an electric motor and a high-voltage battery, and each needs attention. On the engine side, a hybrid service covers the same essentials as any car, including oil and filters, spark plugs where due, and coolant. On the electric side, we check the high-voltage system and its cooling, which on some models includes a battery cooling fan and air filter that can clog with dust.

We carry out servicing in line with your manufacturer’s schedule and update the online service record, so your warranty paperwork stays in order.

Types of hybrid we work on

• Full hybrids can drive short distances on electric power alone and switch between the engine and motor automatically.
• Mild hybrids use a small electric system to assist the engine, but can’t run on electric power by themselves.
• Plug-in hybrids have a larger battery that you charge from the mains, giving a longer electric-only range.

Each has its own servicing needs, and we’ll follow the schedule for your specific model.

Signs your hybrid needs checking

• A hybrid system warning light or message
• the engine running more often than it used to
• less driving on electric power alone
• fuel economy dropping noticeably
• a loud fan noise from inside the car, which can point to a battery cooling issue

Faults like these need proper diagnosis, and our dealer-level equipment reads both the engine and hybrid systems. We’ll explain what we’ve found and share photos where they help, before any repair goes ahead.

Brakes & oil still matter

Like electric vehicles, hybrids use regenerative braking, so the friction brakes see less use and can corrode or seize. We check them at every service.

On plug-in hybrids driven mostly on electric power, the engine may barely run. The oil still ages, though, so keeping to the time-based service interval is important even when the mileage is low.

Full training is required

Hybrids carry high-voltage systems that can be dangerous without the right knowledge. IMI Level 4 is the highest level of IMI electric vehicle qualification, covering diagnosis and repair of live high-voltage components. It means we can handle hybrid work that goes well beyond routine servicing.

Parts & guarantees

Parts are of original equipment quality, or genuine manufacturer parts where the vehicle requires them. They’re covered by the manufacturer’s warranty, and our labour is guaranteed for 12 months.