Car Engine Repair

If the “Check Engine” light appears on your dashboard, the engine runs unevenly, you notice power loss, smoke, or strange noises — visit our garage immediately. Mario Garage performs full engine diagnostics in Cagnes-sur-Mer and resolves all types of issues.

Our technicians specialize in German and premium vehicles, detect complex problems, and carry out engine repairs on-site or after towing.

Main symptoms that indicate the need for engine diagnostics:

- “Check Engine” warning active or flashing

- Vehicle losing power while driving

- Engine misfires or runs unevenly

- White or black smoke from the exhaust

- High fuel consumption

- Engine stalls at idle

- Hard starting when cold

- Unstable idle speed

- Smell of fuel inside the cabin

What we diagnose:

- Fault codes: P0171, P0300, P0420, etc.

- Sensor issues: oxygen, temperature, mass airflow

- Ignition system failures: coils, spark plugs

- Turbo, EGR valve, air intake malfunctions

- Injector or fuel delivery faults

- Electronic issues in German vehicles

Types of diagnostics we offer:

- Full scan via OBD connector

- Petrol and diesel system diagnostics

- Electrical, ground, and module testing

- Engine behavior analysis under load

- Fuel pressure and compression testing

- Visual and acoustic assessment

Diagnostics by engine type:

Petrol engines:

- Misfires

- High idle RPM

- Knocking or unusual sounds

Diesel engines:

- White smoke on startup

- Irregular engine performance

- Weak power output

- Issues with injectors or glow plugs

Hybrid engines:

- High-voltage system errors

- Inverter overheating

- Problems when switching modes

Frequently Asked Questions (FAQ):

What does the “Check Engine” light mean?

It’s a warning that there's an error in the engine system — ranging from a sensor fault to a serious issue.

Can I clear the error myself?

Technically yes, but not recommended. The problem may return. Professional diagnostics are safer.

How much does engine diagnostics cost?

Between €49 and €89 depending on the model and number of errors.

How much does repair cost after diagnostics?

It depends on the fault. We provide a clear estimate before starting any work.

How long does a diagnostic take?

Typically between 30 to 60 minutes.

How long does full engine repair take?

Usually 1 to 3 days depending on the issue and parts availability.

Can I drive with the “Check Engine” light on?

No. It may lead to severe damage and more expensive repairs.

What if the engine stalls or the light flashes?

Come in immediately — it may be a critical failure.

Which brands do you service?

We specialize in BMW, Mercedes-Benz, Audi, Volkswagen, and other premium European vehicles.

Do you handle electronic issues?

Yes. We use BOSCH and AUTEL professional diagnostic equipment to identify issues with sensors, modules, and engine electronics.

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Book your engine diagnostics appointment now!