PRICE GUIDE · VEHICLES & TRANSPORT

Car Diagnostics cost in Ireland
€50–€150 per check. Typically €80.

A car diagnostics in Ireland costs €50–€150 per check, typically around €80. The price is set by diagnostic depth, make and model and fault complexity.

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HOW MUCH IT COSTS

How much does car diagnostics cost in Ireland?

CAR DIAGNOSTICS PRICE · PER CHECK · IRELAND
Low end€50a simple job, off-peak, outside the cities
Typical€80what most people pay
High end€150the biggest jobs, short notice, Dublin
Typical €80
€50 low€150 high

Locufy guide prices for 2026–2027. Updated 2026. A national range, not a quote — enter your town above for real prices from the garages, mobile mechanics and valeters near you.

What moves the price

  • Complexity of the issue — an intermittent fault can take several test drives and checks to track down.
  • Number of systems checked — a full engine, electrical and braking check takes longer than one system.
  • Model of the vehicle — some makes need dealer-level diagnostic software that not every garage has.
  • Diagnostic depth — reading fault codes is quicker than tracing a fault through wiring and live data.
  • Mobile or garage visit — a mobile car diagnostics visit to your home can cost more than taking the car in.
  • Access to components — sensors and wiring hidden behind panels take longer for the technician to test.
+26%PRICE TREND · 5 YEARS

Maintenance and repair of personal transport equipment prices in Ireland are up 26% over five years (CSO Consumer Price Index, Maintenance and repair of personal transport equipment, to 2025 December). Five years ago a typical car diagnostics would have cost about €65 — an estimate from today's guide price and that index, not a recorded price. Source: CSO CPM18, CPM12 →

WHAT YOU GET

What a car diagnostics booking includes

Engine DiagnosticsThis includes checking the engine control unit (ECU) for error codes and performance issues.
Transmission AnalysisDiagnostics can determine if there are issues with the transmission system, such as slipping or unusual noises.
Electrical Systems CheckThis covers the inspection of the vehicle's electrical systems, including the battery, alternator, and wiring.
On-Road TestingSome diagnostics require a test drive to replicate issues like vibrations or noise.

Takes: Most car diagnostics jobs take between one to two hours, depending on the issue's complexity and whether further tests are required..

WHAT PEOPLE BOOK

Common car diagnostics jobs

Engine DiagnosticsInvolves checking the engine's performance and identifying faults using diagnostic tools.
Transmission DiagnosticsFocuses on assessing the transmission system for issues affecting gear changes and performance.
Electrical System DiagnosticsInvolves evaluating the vehicle's electrical components to identify faults in wiring or systems.
Exhaust System DiagnosticsChecks the exhaust system for blockages or failures that could impact emissions and performance.
Braking System DiagnosticsAssesses the braking system to ensure safety and identify any potential issues.
Air Conditioning DiagnosticsInvolves checking the air conditioning system for efficiency and identifying any faults.

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Car Diagnostics near you, with prices shown

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How to pay less

  • Having the car diagnostics done at the same visit as a service can save paying for a separate check.
  • Noting when the warning light or fault appears helps the technician find it faster, which can cut diagnostic time.
  • Asking whether the diagnostic fee comes off the repair bill, if the same garage fixes the fault, can save money.
  • A basic fault code read can cost less than a full diagnostic check when the warning light points to one system.
  • Timely diagnostics can prevent further damage and costly repairs.

Before you book

  • Access to the vehicle's OBD-II port, usually located under the dashboard.
  • Any relevant service history or previous diagnostics reports.
  • A description of the symptoms or issues experienced with the vehicle.
  • Access to the vehicle for the duration of the diagnostic process.
  • You can ask what training the technician has in car diagnostics and how they work safely on the vehicle's electrical systems.

Car Diagnostics cost: questions people ask

The cost can vary based on the complexity of the issue, the make and model of the vehicle, and the diagnostic tools required. Additional fees may apply if repairs are needed following the diagnostic assessment.

Most car diagnostics jobs take between one to two hours, depending on the issue's complexity and whether further tests are required. Some straightforward checks may be completed in under an hour.

For basic diagnostics, a general mechanic is usually sufficient. However, for issues related to advanced electrical systems or hybrid vehicles, a qualified specialist may be necessary due to the technical expertise required.

Many garages offer emergency diagnostics, but availability can vary. It's advisable to call ahead to check if same-day service can be accommodated, especially during busy periods.

Yes, many service providers allow you to book multiple diagnostics or repair jobs in one appointment. This can save time and may even result in cost savings on labour charges.

Car diagnostics generally do not include repairs or part replacements unless explicitly stated. Additional costs may arise if the diagnostic reveals issues that require further investigation or repairs.