Smart
Smart service and repairs
We work on electric Smarts: the fortwo and forfour EQ, very common in cities, and the newer smart #1 and #3. They are small cars, but with specific battery and charging problems.
Why take your Smart to a specialist
Electrified Smart cars aren’t repaired like a petrol car. Without the right equipment and high-voltage experience, the diagnosis stays half done.
- 01
fortwo EQ: intermittent battery warnings
Fortwo and forfour EQ owners report messages such as “Malfunction, visit workshop” or “Charging not possible”, after which the car won’t start. Often the cause is software or the 12 V battery, not the main battery.
- 02
Diagnostics across the whole electrified system
We read the codes from every control unit involved and measure the battery, inverter and charging. We separate a weak module from a flat 12 V battery, a connector or a software fault.
- 03
We repair what is faulty, not the whole assembly
Before any quote for a new Smart battery, we test its condition. Where it makes sense, we repair only the confirmed component.
We test first, then suggest
What we do on Smart hybrids and EVs
We handle the systems we see most often on electrified cars, from the high-voltage battery to charging, brakes and maintenance.
Many Smart owners come to us after the range dropped, after a dashboard message or after a quote for a new battery. We test first and tell you what we confirmed.
- High-voltage battery diagnostics
- Testing every module and the battery’s condition
- The charging system, where relevant
- The 12 V battery and the DC-DC converter
- Regenerative and friction braking
- Battery and inverter cooling
- Maintenance: filters, fluids, tyres
- Software, where we have access for the make
Smart models we see often
Every model has its weak points. Here is what we know about the most common ones:
When to bring your Smart in
It makes sense when range drops, charging fails, a warning message appears or another garage lacks the equipment for the electrified side.
Range has dropped noticeably
Battery wear, temperature or a weak module can reduce range. We read the battery’s condition before talking about replacement.
Charging won’t start or keeps stopping
The cause can be the cable, the port, the on-board charger or the 12 V battery. We find it before you replace parts one after another.
Warning message or reduced power
The car is protecting itself. We check the battery, inverter and signals, without assuming a new battery just because of a dashboard message.
The car won’t wake up, although the battery is charged
On electric cars, a flat 12 V battery blocks everything, even with the main battery full. We also check the system that charges it.
Frequently asked questions about Smart hybrids and EVs
Do you work on Smart hybrids and electric cars?+
Yes, on the common electrified Smart models. When you book, we confirm from the VIN what we can do on your car.
Can you check the battery’s condition?+
Yes. We test the battery before any replacement quote and tell you what we found and what options you have.
Is it cheaper than a dealer?+
Often, yes, because we repair only what is faulty rather than replacing whole assemblies. If the car is still under the manufacturer’s warranty or has an open recall, we tell you to go to a dealer first, where the fix is free.
How long does it take?+
It varies from case to case: it depends on the model, the fault and the parts. We give you an estimate after talking through the symptoms or after the diagnosis.
Find out what is wrong with your Smart
Book a check. We tell you the cause and whether the next step is the battery, the charging or maintenance.