Services
EV and hybrid service
EV service for all brands — certified for high-voltage work. Your factory warranty stays valid with us. Battery health (SoH), charging equipment, EU inspection and hybrids.

EV service in Sandefjord — for all brands
Din Firmabil AS performs service, maintenance and repairs on all types of electric and hybrid vehicles. Our technicians are certified for high-voltage work, and we have modern diagnostic tools for all leading EV brands. You always get an estimate before we start.
Our EV services include:
- Annual service following the manufacturer's service program — on all EV brands
- Battery health (SoH) measurement with a written report
- Diagnostic testing of electrical systems and software updates
- Inspection of charging electronics and repair of charging cables/equipment
- Testing and replacement of the 12V battery (the most common cause of EV no-start issues)
- Brake service adapted to regenerative braking
- AC service and heat pump service
- EU inspection, suspension, body and paint work
Do I keep my factory warranty at an independent workshop? Yes.
Many EV owners believe they must use the brand dealership to keep their warranty. That is not the case: you are free to choose an officially approved workshop, as long as the service follows the manufacturer's service program and is documented. We service to factory specifications and register the work digitally — your factory and new-car warranty remain fully valid. That gives you the freedom to choose a local workshop in Sandefjord, often with shorter waiting times.
Battery health and SoH measurement
The battery is the most expensive component in an EV, and its state of health (SoH) determines both range and resale value. We measure the battery's real capacity and give you a report — useful before buying or selling a used EV, for warranty assessments, or if you notice reduced range.
EU inspection for EVs
EVs follow the same EU inspection intervals as other cars, but the inspection differs slightly: there is no emissions test, and extra attention is paid to the 12V battery and the brakes — which wear differently on EVs due to regenerative braking. We are officially approved for EU inspection of EVs.
Hybrid vehicles
For hybrids we also service the combustion engine, including oil changes and other required maintenance items — all in one place, in the same workshop visit.
How it works
Book an appointment
Easily book a time through our online booking system, or call us at 41 17 32 24.
Drop off your car
Drop off your car at the agreed time. We go through the planned work together.
Service and repair
Our qualified mechanics carry out the work using quality replacement parts and keep you updated along the way.
Pick up your car
When the work is finished, you get a detailed walkthrough of what's been done and any recommendations.
Specialized services
Choose the specific ev and hybrid service service that fits your needs.
EV service
Annual EV service — brake fluid, gear oil, battery coolant, cabin filter, 12V battery and software. No engine oil, but several other points are just as important.
Battery health and State-of-Health measurement
SoH measurement on EV battery — we read actual capacity via OBD and give you a report documenting battery condition. Useful before selling or if range has dropped.
Charger and Type 2 cable repair
Repair of Type 2 charging cables and home charger (wallbox) — diagnostics, connector replacement and testing. We also check whether the problem is in the car, the cable or the charger.
12V battery on EV
Replacement and testing of 12V battery on EV. Yes, EVs also have a 12V — it powers lights, locks, infotainment and is often the most common cause of a "dead" EV in a parking garage.
Brakes on EV — regenerative and when they need replacement
The EV's regenerative brake means pads last a long time — but corrosion may still require replacement. We check and service brakes correctly on all EV models.
Frequently asked questions
Do EVs need service?
Do I lose my factory warranty if you service my EV?
What is an SoH measurement of the EV battery?
Do you repair charging cables and equipment?
Why won't my EV start when the main battery is full?
Is the EU inspection different for EVs?
How often should I service my EV?
Can you do bodywork on EVs?
Learn more
Related articles
Tips and guides about ev and hybrid service from our experts.
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