Diesel Help Australia

Clinton Brett

Automotive Education Excellence Award 2024

Founded by Clinton Brett, a fifth-generation heavy vehicle mechanic and diesel fuel injection specialist who has worked in the industry since 1990. Clinton identified the need for specialised education due to the increasing number of diesel passenger vehicles and heavy machinery using common rail technology.

Having attended OEM training in his career as an authorised service agent for Bosch, Denso, Delphi, Stanadyne and Siemens, he knew there was a void in the industry for aftermarket training provided by someone with real on vehicle diesel experience.

Petrol mechanics didn’t sign up for diesel. They're experiencing faults that take years of experience to successfully diagnose whilst keeping the cost down for both the customer and the business. Heavy diesel mechanics are also having difficulties understanding the difference between unit and common rail diesel injection systems.

Clinton's techniques are designed around systematic elimination of different parts of the fuel system without the need to rely only on what the computer fault code displays. Whether you are an independent or a dealership workshop, Clinton is a reassuring and knowledgeable voice helping you work through the problem to find its source. Diesel Help Australia’s training and over the phone support has helped customers diagnose issues within minutes that have stumped workshops for weeks!


Success Stories

We have collected thousands of success stories, whether they were faults that were diagnosed quickly over the phone, or members who have been able to expand the diesel diagnostics side of their automotive business with our help.

Here are just a few of those stories...

Clinton delivered diesel training seminars at our Auto Expo in Melbourne 2017, our Autocare convention in Sydney 2018 and this years’ Auto Expo held in Melbourne in April. The feedback from the hundreds of attendees at these events was very positive, as Clinton is proving to be arguably one of Australia's 'go to’ trainers for diesel diagnostics.

Clinton Brett comes from a different training angle. Clinton teaches to use our own body senses. To observe, smell and touch the engine’s outputs in terms of smoke, heat and sound. This concept, along with measuring technologies of modern tooling, gives a much higher level of competence when diagnosing engine faults, a faster and more accurate diagnosis.

Stuart Charity 
Australian Automotive Aftermarket Association

Investing in our team's skill set and knowledge is critical to our future. Over the past two years, we have been hosting training and receiving trusted technical support from Clinton Brett and his team at Diesel Help Australia. Clinton’s training has been of high quality, with excellent technical knowledge and well-structured delivery methods. Clinton’s training integrates both theory and practical demonstrations together to provide a balanced course with good outcomes. His knowledge of diesel systems and the industry has been a valuable resource for our business and that of our customers. We have now hosted CRD Training, presented by Clinton, for over 70 of our team and customers, the training has been very well received and the feedback very encouraging.

Peter Harris 
All Four x 4 Spares

It is always good to attend a training course where the trainer has real world experience with the subject. It is always easy to tell when someone is just reciting a text book, and it makes the experience less genuine.

Clinton definitely has been there, and done that.

Brendan Hayward
Autoco Phillip

We really appreciate your services [Diesel Help] and found it very useful.

You are providing a very amazing service and the phone call I had with Clinton helped back up my diagnostic pathway and provided me with the re assurance that I needed.

Mitcheal Brooks
Kariong Automotive

I have been a Motor Mechanic for 38 years. The company that I work for signed on as a Gold Member in February 2019. Becoming a member gives you access to Clinton's many years’ experience in the diesel field which has proven to be extremely helpful. Next is the technical bulletins that are continually updated, not to mention that there are also educational videos being added. In the time that I’ve have been a part of Diesel Help there has not been one job that has been logged that Clinton has not help solve.
In summary becoming a Diesel Help Member is equally as valuable as any tool or equipment purchase.

Peter Thompson

We are always looking for a course that is practical, will help with accurate diagnosis and promote better workshop practices.

The course material and equipment help with this but it is all tied together by a trainer with obvious expertise and ability to simplify more complex  concepts.

This will go a long way to dispelling the processes of  guess diagnosing by swapping or replacement.

Brian Pomroy
Training Officer

I have attended a diesel training course conducted by Clinton held earlier this year. I found it informative and understand that he has a comprehensive knowledge of diesel engines including the faults occurring in common rail diesels.

Robert Chapman
Chapman's Auto Repairs Pty Ltd

I would just like to say THANK YOU very much to Clinton for such a knowledgeable and detailed explanation of the common rail system and diagnostic procedures.

I can not thank Clinton enough for making the CRD system transparent and comprehensible.

Thank you.

Joel O'Toole
O'Tooles Automotive

Hi Clinton, I would personally like to thank you for the training you have provided to my technicians; it has been invaluable. Your independent training on top of factory training gives us a broader knowledge of all systems in newer diesel vehicles, as well as some of the older models that are experiencing unusual problems now. I also find it helpful that I can contact you at any time.

Grey Povey
Barry Maney Group

Clinton has helped us diagnose issues on CRD systems on many occasions and his understanding and knowledge is a great asset to have in your tool box. We have also purchased testing equipment to make the job easier. He has a connection kit and a remote fuel tank [The Eliminator] that we use and can save an enormous amount of time when trying to locate the cause of issues. Highly recommend the use of his service.

Andrew Slabosz
Mechanics 2 U

This training course delivered by Diesel Help Australia took away the myths and fears of dealing with diesel common rail injections. It boosted the confidence of myself and the mechanics in my workshop, enabling us to conquer our fear of the unknown and expertly diagnose and repair diesel common rail injection systems.

I would have no hesitation in recommending Clinton Brett and his business, Diesel Help Australia, to other automotive workshops to help further their diesel knowledge. His expertise is invaluable and any workshop that completed any of his courses would benefit from the knowledge and instruction provided about diesel fuel systems.

Peter Blaser
Ben's Automotive Repair Centre

I have had the opportunity to host a common rail diesel training course conducted by Clinton Brett from Diesel Help Australia. The course was split into two parts; the theory section was very informative and the notes supplied were comprehensive. The second part of the course was hands-on in the workshop, giving us the opportunity to put what we learned into practice. Clinton has some very basic and simple ideas which help diagnose common rail diesel faults in a systematic process without making things too complicated.

I would recommend Clinton and his services to anyone who is interested in expanding their knowledge to grow their business.

Brett Kirkland
UltraTune Rockhampton


After wasting valuable hours on this ute, we were still stumped at what the cause of failing to start and run were. While we did not have extensive diesel experience, we still knew it could only be ignition, air or fuel issues yet we could not isolate and identify the cause. We were extremely lucky to be put in contact with Clinton Brett who gave advice on diagnosis that was simple, clear and hugely beneficial. Once we carried out the tests as per his ,advice the cause was immediately detected and we were able to order the parts required. As soon as we fitted the new parts the engine sprung to life (much to the delight of the frustrated technician who had battled with the diagnosis). I was so impressed with Clinton's knowledge and customer service I would have no hesitation in recommending him; his knowledge is hugely beneficial.

Sean Boyd
Grant Ward Nissan

Clinton Brett performed his diesel training course at our workshop in Townsville and all our staff thoroughly enjoyed his presentation. Clinton is a very likable person and his presentation and training on common rail diesel is something that I will remember. He was very willing to answer questions about different types of common rail set ups and was very well informed about the current diesel problems.

Technicians that are willing to listen will take a lot out of the training that Clinton performs. It will also give them confidence in performing diagnosis procedures on common rail diesel motors.

Vishal Singh
BIPS Automotive Service Centre


My staff and I attended Clinton Brett's diesel training course. We were very happy with the delivery, content and confidence this training brought into our workshop when dealing with modern diesel vehicles. Clinton dispelled many myths regarding common rail diesel fuel system operation and fault diagnosis.

We highly recommend this course to workshops looking to expand their diesel skills and knowledge.

Peter Semrad
Harry's Auto Care

We first met Clinton from Diesel Help Australia in 2018 when I completed both of his common rail diesel diagnostics courses. We learnt many things in not only the servicing of these system but also the correct way to diagnose and repair correctly. Whilst at the course he offered a couple of products which we purchased for our business. The Optimus Primer® is a quick and easy way to perform maintenance and help diagnose faults on any common rail diesel system. We use this most days to easily eliminate any air and bleed the fuel system after a filter has been changed.

Rhet Neilsen
Bunjurgen Mobile Mechanical

I am writing to pass along my immense appreciation for your friendly assistance and helpful advice which you kindly provided  to myself and company staff at our Sandgate workshop. Your knowledge and experience in relation to the current common rail diesel engine is exceptional.

As a result of the training, Phillips Automotive is now able to include the repair of current common rail diesel engines as a part of our list of services, consequently enhancing and increasing not only mechanical skills, but also business trading. Previously, it was too difficult to assist with diesel engine faults due to the complexity of the new common rail design; since the training, staff are able to quickly diagnose and repair common diesel engines assertively and efficiently.

Paul Phillips
Design Engineer

I've known Clinton Brett for approximately 3 years now. We have hosted and attended training courses supplied by Clinton and have learned imperative knowledge from these days. His knowledge in diesel engines and diagnoses skills are spot on.

We have used his services on numerous occasions and he has added exceptional value to our business. His willingness to help and source parts at reasonable prices are outstanding. I would/have recommended him to any businesses needing specialist guidance in his field.

Stuart Kaiser
Hycraft Automotive