Engine diagnosis — Sydney specialists

At Brelanox we combine OBD-II scanning, live data analysis and hands-on inspection to find root causes fast. Servicing petrol and diesel engines across Sydney and supporting drivers Australia-wide.

  • Quick OBD scan: fault codes & live data review
  • Advanced diagnostics: misfire, fuel trim, sensors
  • Repairs & testing: ignition, injectors, EGR, turbo
  • Mobile assistance: roadside checks in Sydney
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Engine diagnostic tools

Diagnostics Services

From check engine light to drivability issues — tailored tests and transparent reports.

  • Full OBD-II report & code clearing
  • Compression & leak-down testing
  • Sensor & actuator bench testing
  • Smoke test for intake/exhaust leaks

Performance & Tuning

Health checks, turbo diagnostics and fuel system inspection to restore performance.

Performance testing

Electronics & Hybrid

Battery & ECU fault-finding, hybrid system checks and sensor replacements.

ECU diagnostics

How we diagnose

  1. Initial interview & symptom capture
  2. OBD-II scan & live data capture
  3. Targeted mechanical tests (compression, leakdown)
  4. Component bench testing and wiring checks
  5. Report with options and cost estimate

We log findings and discuss repair priority with clear pricing before any work starts.

Diagnostic workflow

Common engine faults we diagnose

We check ignition coils, spark plugs, fuel delivery and compression to pinpoint misfire causes and advise repair or replacement.

We analyse stored and pending trouble codes with freeze-frame data to find intermittent faults and underlying issues.

We perform boost leak tests, actuator checks and turbo health inspection to determine repair or rebuild options.
Quick facts
  • Typical scan: 30–60 min
  • Reports: PDF with findings
  • Mobile checks: Available in Sydney
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Diagnostic pricing guide

ServiceWhat it includesFrom (AUD)
OBD-II scanCodes, live data snapshot, advice79
Comprehensive engine diagnosisFull tests, compression, leakdown, report199
Mobile on-site check (Sydney)Basic scan & visual inspection129
Estimates provided after inspection. Parts & labour quoted separately.

FAQs

Do you reset check engine lights?

Yes — but we only clear codes after diagnosing the cause. We provide documentation of the fault and the fix recommendation.

Can you work on hybrid systems?

We support hybrid diagnostics for battery systems and inverter faults; some high-voltage repairs are referred to specialist partners for safety.

Lead technician
Alex Morton
Lead diagnostics technician — 12 years in engine management

Our technicians

Our team includes factory-trained technicians experienced with European, Japanese and Australian vehicles. We prioritise clear communication and practical repair options.

Arrange inspectionPrivacy & data

Service areas

Sydney (main workshop)
27 Kent Street, Sydney NSW 2000
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Regional support

Mobile checks and partner workshops across Melbourne, Brisbane and Adelaide. Contact us for availability and pricing.