Diagnostics Department

Find the Fault, Not Just the Symptom.

A warning light or a strange noise is a symptom, not the answer. Our diagnostic bay uses industry-leading scan tools to trace it back to its actual cause before any part gets replaced.

What's Included

Diagnostics at Al Barza

Every job in this department starts with an inspection and a written estimate, so you know the scope and the cost before any work begins.

Technician holding a removed fuel pump component for inspection
Service Menu

What we cover

01

Check Engine Light Diagnosis

Full OBD scan and live data read to isolate the fault code's real cause.

02

Intermittent Fault Tracing

Faults that come and go, traced using data logging over a test drive.

03

Pre-Purchase Inspection

A full diagnostic and visual check before you buy a used car.

04

Sensor & Module Testing

Individual sensor and control module testing rather than guesswork swaps.

05

Battery & Charging Diagnosis

Alternator output and battery health tested under load.

06

Emissions & Smoke Testing

Diagnosis for failed emissions or unusual exhaust smoke.

Process

How the job runs

01

Scan

A full OBD/manufacturer-level scan pulls every stored and pending fault code.

02

Verify

Live data and, where needed, a road test confirm which code is the actual cause.

03

Report

You get a plain-language explanation of the fault and a costed repair option.

04

Repair (Optional)

If you approve, our mechanical or electrical team carries out the fix.

From The Workshop

Recent work

Technician holding a fuel pump component
Fault Isolation
Engine bay open for diagnostic scan
Diagnostic Bay
Toyota Corolla being inspected
Pre-Purchase Check
Underside inspection of a vehicle
Undercarriage Check
Good to Know

Common questions

How long does a diagnostic scan take?

Most scans take 30–60 minutes; intermittent faults may need a short road test as well.

Do I have to repair the car with you after diagnosis?

No — the diagnostic report is yours to use, though we're happy to carry out the repair if you'd like.

Can you check a used car before I buy it?

Yes, our pre-purchase inspection covers mechanical, electrical and a visual body check.

Ready to book diagnostics?

Send your car's make, model and the issue on WhatsApp for a fast estimate.

WhatsApp