Diagnostics
The first hour at a fixed price, credited in full if you have the repair done here. You get a written account of what we found.

fixed price
69 €
- Takes about
- 60 min
- Prices include VAT
- 25,5 %
- Fault codes read from the engine and the other control units
- The measurements the fault calls for: voltage, pressure, temperature, exhaust gas
- Road test, if the fault appears while driving
How it works
Call us or drop in
Give us the registration. We confirm the price and agree a time in the same call.
We do the work
You get the car back at the time we agreed.
Takes about 60 min
You pay the agreed price
No surprises on the invoice. If we find anything else, we call before we touch it.
What the price includes
What the price includes
- Fault codes read from the engine and the other control units
- The measurements the fault calls for: voltage, pressure, temperature, exhaust gas
- Road test, if the fault appears while driving
- Inspection on the lift
- A written account: what the fault is, what the repair costs, and what happens if it is left
What the price does not include
- The repair itself. We credit the diagnostic charge if you have it done here.
- Dismantling parts, if finding the fault requires it. We tell you before we take anything apart.
- A second hour, if the fault is one of the rare ones the first does not find. We ask before going on.
- Parts.
About this work in detail
A fault code is not a fault. It is a record that a control unit saw a value outside the expected range. The same code can come from a sensor, a wire, a connector, or from the component the code appears to blame. The most expensive mistake in motoring is replacing the part named in the code.
So we read the codes and then we measure. The difference is that the code tells you where to look and the measurement tells you what is broken. That takes time, and time is what we charge for, because time is what the work costs.
Book a diagnostic when a warning light is on, when the car does not start properly, when there is a noise from underneath, when consumption has risen with no explanation, or when something simply feels different. Tell us everything you have noticed, including what seems irrelevant. When the fault appears is often more useful than what it sounds like.
An intermittent fault is the hardest to find and does not always show itself the first time. We say so plainly when that is the case, and we do not guess. Nor do we replace parts experimentally at your expense.
You can come in for a diagnostic without booking. A booked slot gets you seen sooner, but if the warning light came on today, come in.
If something else needs fixing
We do not start work you do not know about. If the car needs something else fixed, we call and tell you what the extra work costs and what happens if it is left undone. You decide.
A fixed price does not change without your permission. The one exception: if we cannot reach you within a reasonable time, we may do minor and necessary additional work worth up to 150 €.
We work to the motor vehicle service and repair terms approved by the consumer advisory board of the Finnish motor trade.
Shall we agree a time?
Leave a booking request online or call. We confirm the time and tell you the price before any work starts.
fixed price
69 €
- Address
- Lampputie 12 C 67
00750 HelsinkiShow on the map - Opening hours
- Mon–Fri8.00–18.00Sat9.00–15.00Sunclosed
- Phone
- 045 262 5950
- huolto@caron.fi


