Most modern diesel vehicles are incredibly reliable, but they do expect a little cooperation from their owners. One of the most misunderstood features is the Diesel Particulate Filter (DPF) and, more importantly, DPF regeneration.

At Approved Automotive Services, we are regularly asked questions about DPF warning lights, limp mode and why a vehicle suddenly seems to lose power. The good news is that many DPF problems can be prevented simply by understanding how your vehicle works and following the instructions in your owner's manual.

Learning when and how to allow your vehicle to complete a DPF regeneration could save you hundreds or even thousands of dollars in repairs.

A Diesel Particulate Filter (DPF) is fitted to most modern diesel vehicles to reduce harmful exhaust emissions.

Think of it as a filter that traps tiny soot particles before they leave the exhaust pipe. Over time, this soot builds up and the filter needs to clean itself through a process called regeneration.

Without regular regeneration, the filter eventually becomes blocked, affecting both vehicle performance and fuel economy.

DPF regeneration is simply the process of burning the trapped soot into a fine ash.

Your vehicle's computer raises the exhaust temperature high enough to burn away the soot, allowing the filter to continue doing its job.

There are generally three types of regeneration:

Passive Regeneration

Occurs naturally during longer highway drives when the exhaust gets hot enough.

Active Regeneration

The vehicle automatically injects additional fuel to increase exhaust temperature and clean the filter while you're driving.

Forced Regeneration

If the filter becomes too blocked, normal regeneration won't work. The vehicle needs specialised diagnostic equipment to perform a controlled regeneration at a workshop like Approved Automotive Services.

In some severe cases, the DPF may need to be professionally removed and cleaned or even replaced.

Many Australian diesel vehicles spend most of their lives doing exactly what blocks a DPF.

Examples include:

These driving conditions often don't allow the exhaust to become hot enough for regeneration to complete.

Over time, soot continues building until warning lights appear.

Ignoring a DPF warning light is one of the most expensive mistakes a diesel owner can make.

A blocked DPF can cause:

What Happens If You Ignore the Warning Light?

Many vehicles automatically enter Limp Mode to protect the engine once the DPF reaches a critical level of blockage.

This limits engine power and speed, often making highway driving difficult or unsafe until the problem is repaired.

Karen often explains it like this.

Imagine you've been using your diesel ute for local shopping, school runs and driving to work all week.

One afternoon, the DPF warning light appears.

Your owner's manual may recommend something similar to this:

Maintain a steady speed of around 80-100 km/h.

Keep the engine above approximately 2,000 rpm.

Continue driving for 20-30 minutes without stopping if it is safe to do so.

During this drive, the vehicle performs an active regeneration, burning off the accumulated soot.

The warning light may switch off once regeneration is complete.

Every manufacturer is different, so it's important to follow the instructions in your own owner's manual rather than relying on advice for another vehicle.

If the warning light remains on, or additional engine warning lights appear, it's time to have the vehicle professionally inspected.

Sometimes.

If the first warning light has only just appeared, following the manufacturer's regeneration procedure may solve the problem.

However, if the vehicle has entered Limp Mode or multiple warning lights are displayed, continuing to drive could cause further damage.

Having the vehicle checked promptly can often prevent a much more expensive repair.

A blocked DPF doesn't only affect the filter itself.

Treating the problem early often prevents these components from being affected.

It can also place additional strain on:

As an independently owned Repco Authorised Service centre, Approved Automotive Services has the specialised diagnostic equipment and training needed to accurately diagnose DPF issues.

Depending on the condition of your vehicle, we can:

How Approved Automotive Services Can Help

Perform manufacturer-approved forced regenerations where appropriate

Identify the underlying cause of repeated DPF problems

Advise if professional DPF cleaning or replacement is required

Most importantly, we'll explain what's happening in plain English so you understand how to prevent the problem returning.

Looking after your DPF doesn't have to be difficult.

A few simple habits can make a big difference.

Read your owner's manual and understand your vehicle's regeneration procedure.

Complete regeneration when your vehicle requests it.

Include occasional longer highway drives where practical.

Use the correct low-ash engine oil specified by the manufacturer.

Have engine warning lights investigated promptly.

Don't repeatedly switch the engine off if regeneration is in progress.

During an active regeneration, exhaust temperatures can exceed 600°C—hot enough to burn away the trapped soot inside the filter. It's an impressive example of modern engineering quietly working in the background to keep your diesel running cleaner and more efficiently.

If your diesel has a DPF warning light, reduced performance or has entered Limp Mode, don't ignore the signs.

The experienced team at Approved Automotive Services in Newton can diagnose the problem, explain what's happening in easy-to-understand language and recommend the most appropriate repair before a minor issue becomes a major expense.

Whether your vehicle needs a professional forced regeneration, a DPF clean or simply expert advice on how to complete regeneration correctly, you can rely on Approved Automotive Services—your trusted local Repco Authorised Service centre—to help keep your diesel performing at its best. Book Online Today

Don't Wait Until Your Diesel Goes Into Limp Mode

Learn how DPF regeneration works, why it matters and how to avoid costly diesel repairs. Get expert DPF diagnosis and cleaning from Approved Automotive Services in Newton.

DPF Regeneration Explained | Diesel DPF Cleaning & Advice | Approved Automotive Services Newton

Don't Ignore That DPF Light! Your Diesel Is Trying to Tell You Something

Approved Automotive Services stocks a wide range of reliable RAA Batteries and offers complimentary battery testing at their trusted automotive workshop. Whether you’re experiencing issues with your vehicle or simply want peace of mind, their skilled technicians ensure your car battery is in top condition.

At Approved Automotive Services we prioritise keeping your vehicle running reliably. We offer a diverse selection of RAA Batteries, catering to a range of vehicles, and provide free battery testing to ensure your car is ready to go when you need it most. Whether it’s during routine servicing or an unexpected issue, our experienced team is here to help.

Car Battery Services Offered in Newton, SA

Cold weather can significantly affect car battery performance. As temperatures drop, the chemical reactions inside the battery slow down, reducing its ability to produce sufficient power to start your vehicle. At the same time, colder temperatures make it harder for your engine to turn over, placing additional strain on the battery. This is why testing your battery regularly, especially during winter, is essential for reliable performance.

Approved Automotive Services understands the challenges cold weather can bring and ensures your battery is checked for optimal performance during every visit to our Newton workshop.

Impact of Cold Weather on Battery Performance

We make it a point to include battery testing during every log book service. This proactive approach ensures any potential battery issues are identified early, preventing inconvenient breakdowns and costly repairs. Whether you’re dropping in for scheduled maintenance or a quick check-up, our team prioritises your vehicle’s reliability so you can drive with confidence.

Inspecting and testing a car battery involves a series of simple but essential steps. At Approved Automotive Services, our technicians begin with a visual inspection to check for corrosion, damaged terminals, or loose connections. This is followed by voltage testing to measure the battery’s charge level. Finally, a load test is performed to simulate real-world conditions and determine if the battery can provide adequate power under strain.

This thorough process ensures that any potential issues are identified early, giving you peace of mind every time you start your car.

Process of Inspecting and Testing a Car Battery

Recognising the early signs of battery failure can help you avoid being stranded. Common symptoms include:

Slow Engine Cranking: The engine struggles to turn over, especially in the morning.

Dim Headlights: Reduced brightness in your vehicle’s headlights may indicate a weak battery. 

Dashboard Warning Lights: A battery or alternator warning light may appear on your dashboard.

Swollen Battery Case: Heat or age can cause the battery case to expand, signalling internal damage.

If you notice any of these signs, visit Approved Automotive Services in Newton for a battery check.

Different vehicles require different types of batteries to meet their unique demands. Approved Automotive Services offers a variety of options to suit all vehicle types:

Types of Batteries for Different Vehicles

Passenger Vehicles: Standard batteries designed for everyday reliability and efficiency.

4X4 Heavy-Duty Batteries: Built to endure harsh conditions and provide additional power for off-road adventures.

Stop-Start Systems: Specialised batteries designed to handle frequent engine starts while maintaining power for other systems in the vehicle.

Our expert team can recommend the right battery for your vehicle’s specific requirements.

Batteries typically last 3-5 years, but regular testing becomes increasingly important after the three-year mark. Over time, the battery’s ability to hold a charge diminishes, which can lead to unexpected failure.

Approved Automotive Services encourages proactive testing to identify declining performance early. Our thorough testing process ensures your vehicle remains dependable, saving you from potential inconveniences down the road.

Local residents in Newton and surrounding suburbs can rely on Approved Automotive Services for car battery services, expert maintenance, and RAA Battery solutions. Contact us today to ensure your vehicle performs at its best.

Approved Automotive Services in Newton, provides RAA Batteries, free battery testing, and professional car servicing. Visit us for all your vehicle maintenance needs.

Car Battery Services Newton, SA | Free Testing | RAA Batteries

Maintain Car Battery Health with Regular Checks

Approved Automotive Services are proud to be a Repco Authorised Service centre, confirming our dedication to professionalism, customer service and high quality workmanship.

Approved Automotive Services has been operating in Newton and is independently owned by Auto Technician Sam Covino, who has been in the Industry since 1998 and has extensive experience in the Automotive Service and Repairs. The car repair business has been established in the same location since 1998 and employs 4 full time mechanics with collective staff experience for over 50 years. 

Our Newton car service workshop exceeds industry standards required to service and maintain modern motor vehicles. We are equipped to perform all repairs on every make and model of motor vehicle including brakes, clutches, gearboxes, differentials, auto electrical systems, scratch and dent repairs and more.

We provide reliable no obligation, free estimates on your air-con, car maintenance, log book service and new car service.

We also offer the following car services and automotive repairs:

Future Servicing Today - Hybrid Car Service

Future servicing today is what we are all about at Approved Automotive Services and have been for many years. In fact, for almost fifty years Approved Automotive technicians have been servicing new cars in Newton, consistently the newest models with the latest innovations.

Approved Automotive Services have always expertly serviced these new cars, using the latest equipment and with constant training to keep in front of advancing technology. We regularly update our diagnostic and maintenance tools to modern engineering instruments and our team of mechanics have more than sixty years of experience servicing and repairing vehicles.

Our continuous training through Repco Auto Tech, e-training and in house training has enabled us to be ahead of the rest. Our technicians are accredited for Hybrid and modern Diesel servicing. Click here to find out more about hybrid service.

With our own in-house training and company Hybrid vehicles we have gained first hand knowledge and experience for future servicing. Our technicians are eager to tackle any modern car issue and are backed by the knowledge and experience of the Nationwide Repco network.

Approved Automotive Services care about the environment and have Arctick Authorisation to reliably and responsibly conduct automotive air conditioning service (AU49833). ARC Approved Car Air Conditioning Servicing reduces Fuel Costs and protects your health. The ARC Tick of approval helps ensure technicians have the skills and knowledge to correctly undertake service and repairs of refrigerated air conditioning to minimise environmental impact. Call to find out more about car air conditioning or Book a service now.

We are proud to be a Kumho Tyre Dealer and have a dedicated Tyre Bay to assist you will all your tyre and wheel needs. Wheel alignments, balancing, rotation, fitting and repairs.

Approved Automotive Services workshop mechanics specialise in servicing European auto brands and repairs for BMW, Mercedes, and Volkswagen, Audi and all luxury and premium vehicles. Our technicians have access to the latest diagnostic equipment for European, modern and classic vehicles, including your car! Approved Automotive Services has a commitment to high quality workmanship, providing the very best in auto repairs in Adelaide.

If you are concerned about preserving your new car's statutory warranty but also want to obtain expert service at competitive rates, Approved Automotive Services is the car service workshop for you. You can rely on us to use quality Repco parts, fitted in accordance with correct industry standards. We will validate your logbook and provide you with a full inspection report. Now, that's peace of mind.

As a Repco Authorised Car Service centre, Approved Automotive Services have a commitment to high quality workmanship, ensuring the very best in automotive care. Being a member of the Repco Auto Tech training program our business ensures each mechanic is kept fully up to date with modern vehicle repair methods. Our fully qualified log book servicing ensures your car is in safe hands, and we provide quality car service and repairs on all models, including Four Wheel Drive, Hybrid, European and Diesel vehicles. You can be sure that your car is in safe hands with Approved Automotive Services Professionals.

Our mechanic workshop in Newton, South Australia, is open 5 days a week. For your convenience we offer a Free pick-up and delivery service for you or your vehicle from home or work. Courtesy cars are also available with prior booking. Our 5 Star Customer care includes a car wash, vac and fragrance and 6 months roadside assist. We provide personalised, friendly and informative customer service and quality automotive repairs for every car, every day.

You will find the best level of customer service from the friendly specialists at Approved Automotive Services in Newton SA. We specialise in wheel alignments and emission / performance maintenance as well as Hybrid and modern Diesel car maintenance. We can also service your 4x4 vehicle or your brand new car, at the same time we will make sure the manufacturer's requirements are adhered to. Your warranty is preserved while we carry out your car maker's scheduled services and stamp your service book.

Every vehicle that enters the workshop has a Safe-T-Stop Platetronic test, a drive on modern test platform which allows us to test for potentially unsafe conditions of your vehicle's brakes, suspension and shockers. We can also perform live wheel alignment conditions, measuring the drag of your vehicles tyre's while driving on the road. A printed result reporting your vehicles crucial components is supplied and clearly explained to give you full confidence when driving your family and friends in your car.

Servicing your car at Approved Automotive Services regularly will help identify potentially dangerous wear on the vital suspension, steering and braking elements in your vehicle, preventing mechanic failure and protecting yourself and your family. Approved Automotive Services will have your car serviced and back on the road safely and promptly.

Approved Automotive Services is a member of lnstitute of Automotive Mechanical Engineers,  Motor Trade Association of South Australia and are an RAA Approved Mechanical Repairer and a RAA Approved Wheel Alignment Specialist. Our Newton workshop meets the high standards set by these motoring organisations in terms of equipment, competency and quality of service.

Approved Automotive Services offer a very competitive automotive maintenance and repair service plus a Nationwide Warranty.

Visit your local Mechanic in Newton, Approved Automotive Services for personalised, friendly and informative car service and automotive repairs.

As your local Mechanic in Newton, we take great pride in offering our clients the very best in car servicing and automotive repairs. We also offer an Automotive Scratch & Dent Repair service.

Automotive Servicing and Repairs in Newton

Your trusted local Automotive Technicians in Newton

Approved Automotive Services can service your caravan or trailer right here in Newton in our fully equipped workshop. And remember, being backed by the Repco Nationwide Warranty means our work is covered at over 500 workshops Australia wide. Wherever you roam with your caravan or trailer, you're never far from a Repco Authorised Service Centre. 

Even if you don't use your trailer or caravan regularly you should still have it serviced at least once per year. Lack of use brings its own problems and requirements, and you should still have your towed vehicle checked on a regular basis to ensure components have not failed or deteriorated without your knowledge.

Wheel bearings, brakes and running gear are common areas of concern when it comes to trailers or caravans and these should be checked at least once a year to ensure they are operating correctly.

If you're thinking about heading out for a trip, or it's just been a while and you want to make sure it's ready to go when you are - contact us today to arrange a service for your caravan or trailer. 

Even if you don't use your trailer or caravan regularly you should still have it serviced at least once per year.

Caravan and Trailer Service & Repairs in Newton

Caravan and Trailers

AAAA

Approved Automotive Services take great pride in offering their clients personalised, and friendly service at all times. 

Conveniently located in Newton, the business is a member of the Repco Auto Tech training program, ensuring their technicians are kept fully up to date with modern vehicle repair methods. 

Approved Automotive Services have a wealth of experience in servicing all makes and models, including commercial fleet vehicles. As a Repco Authorised Service centre, they have a commitment to high quality workmanship, ensuring the very best in automotive care.

Approved Automotive Services

Caravans and trailers

Let's get started with your booking.

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Your trusted local Automotive Technicians in Newton