We are excited to announce that we are now Cornell Diesel Systems - changes to our website will be announced soon.

Opening Hours

Mon 8am - 5pm | Thurs 8am - 5pm
Tues 8am - 5pm | Fri 8am - 5pm
Wed 8am - 5pm | Sat 8:30am - 11:30am

Wetherill Park

26 Davis Road Wetherill Park NSW 2164
(02) 9757 7373



02 9757 7373

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Contact Us Today

West End Diesel are leaders in diesel repairs, diagnostics and spares. Having been awarded the BOSCH Service Excellence Award NSW in 2013.

West End Diesel offer the resources and experience to accurately and efficiently service your diesel vehicle no matter how big the job.

Our Sydney-based facilities are located in Wetherill Park and Castle Hill. We house a team of passionate, honest diesel mechanics dedicated to giving you the best performance and reliability.

With over 30 years in the trade, we utilise the latest technology to accurately diagnose and repair faults in your diesel vehicle, including excessive smoke, hard starting, loss of power, excessive fuel consumption and overheating.

We service all diesel vehicles from regular passenger automotive, commercial truck fleets, marine diesel, large-scale industrial & agricultural diesel machinery.

Our friendly staff can help you organise and book a convenient time that suits you. We provide quality diesel services at reasonable prices by an experienced team of diesel specialists. No diesel problem is too big or small at West End Diesel.

Diesel Faults We Diagnose & Repair

Engine Ignition Failures

  • Wiring/Air Intake Faults
  • Fuel system contamination
  • Incorrect pump/valve timing
  • Poor battery voltage

Inconsistent Idling

  • Fuel restrictions
  • Electronic systems faults
  • Faulty Injectors
  • Pump Phasing
  • Incorrect Pump
  • Engine Timing

Excessive Noise/Smoke

  • Loose fittings
  • Overfueling & wrong calibrations
  • Electronic systems faults
  • Low injector, cyclinder or turbo pressure
  • Fuel/Water leakages

Inconsistent Acceleration/Deceleration

  • External fuel source leaking to engine
  • Electronic systems fault
  • Accelerator linkage insecure
  • Faulty fuel pump – Restricted fuel return line

Inconsistent or Poor Performance

  • Fuel supply restricted or contaminated
  • Faulty injectors
  • Incorrect timing/calibrations
  • Electronic systems faults
  • Engine temperature faults
  • Turbo faults
  • Accelerator linkage insecure

Engine Overheating

  • Coolant levels low or leaking
  • Wiring faults
  • Incorrect pump calibration
  • Electronic systems faults
  • Mechanical faults (Cracked gasket, pressure cap, engine)
  • Engine overload (e.g Brakes sticking)

Bring your diesel engine servicing needs to the service and maintenance experts. Contact us online or call us to book a service or discuss how we can help.

West End Diesel are a licensed diesel service & repair team. We are proud Members of the Association of Australian Diesel Specialist (AADS).


West End Diesel Systems
26 Davis Rd
Wetherill Park
NSW 2164
(02) 9757 7373