Hey guys! Let's dive deep into the world of the Subaru Forester 2.0 diesel turbo. This trusty engine has been a popular choice for those wanting a blend of practicality and decent fuel economy. But, like any engine, it has its quirks and potential issues. So, buckle up as we explore common problems, potential upgrades, and everything else you need to know about the Subaru Forester 2.0 diesel turbo.

Common Problems with the Subaru Forester 2.0 Diesel Turbo

Alright, let's get straight to the nitty-gritty. The Subaru Forester 2.0 diesel turbo, while generally reliable, isn't immune to problems. Knowing these issues can help you prevent them or address them quickly if they arise. It's also worth noting that many of these problems are more prevalent in older models or those with higher mileage. Keep an eye out for these common culprits:

• Diesel Particulate Filter (DPF) Issues: This is probably the most talked-about issue. The DPF's job is to trap soot and other particulate matter from the exhaust. Over time, it can become clogged, especially if you do a lot of short trips where the engine doesn't get hot enough to regenerate the filter. Symptoms include a warning light on the dashboard, reduced engine performance, and increased fuel consumption. Regular servicing and occasional longer drives can help prevent DPF issues. Consider using a high-quality diesel fuel additive to aid in DPF regeneration. DPF issues can range from simple clogging that can be resolved with a forced regeneration to more serious problems requiring replacement. The cost of DPF replacement can be significant, so prevention is definitely better than cure!
• Turbocharger Failure: It's ironic that we're talking about the turbo itself, right? Turbo failure can occur due to several factors, including oil starvation, foreign object damage, or simply wear and tear over time. Symptoms include a loss of power, excessive smoke from the exhaust, and a whining noise from the turbocharger. Regular oil changes with the correct grade of oil are crucial for turbocharger health. If you suspect a turbo problem, get it checked out by a qualified mechanic ASAP to prevent further damage. Keep in mind that preventative maintenance is key to keeping your turbo in top shape. Regular inspections and timely repairs can save you a lot of money in the long run.
• EGR Valve Problems: The Exhaust Gas Recirculation (EGR) valve recirculates exhaust gases back into the intake manifold to reduce emissions. Over time, it can become clogged with carbon deposits, leading to poor engine performance, rough idling, and increased emissions. Cleaning or replacing the EGR valve can resolve these issues. Some owners opt to install an EGR blanking plate, but this can trigger warning lights and may not be legal in all areas. So, weigh the pros and cons carefully. Regular cleaning is an important preventative measure, and using a fuel additive designed to keep the EGR valve clean can also help.
• Injector Issues: The injectors are responsible for spraying fuel into the cylinders. Over time, they can become clogged or worn, leading to poor fuel economy, rough running, and difficulty starting. Using a high-quality diesel fuel additive can help keep the injectors clean. If you suspect injector problems, have them tested by a professional. Replacing injectors can be expensive, so it's worth trying to clean them first. Proper fuel filtration is essential to prevent debris from clogging the injectors. Make sure to replace your fuel filter according to the manufacturer's recommendations.
• Oil Leaks: Subaru engines, in general, can be prone to oil leaks, and the 2.0 diesel is no exception. Common leak areas include the valve cover gaskets, oil cooler, and crankshaft seals. Regular inspections can help you catch leaks early before they become major problems. Addressing leaks promptly can prevent engine damage and keep your driveway clean. Keep an eye on your oil level and top it up as needed. Ignoring oil leaks can lead to serious engine damage, so don't delay repairs.

Upgrading Your Subaru Forester 2.0 Diesel Turbo

Okay, so you know the potential problems. Now, let's talk about making your Forester even better! There are several upgrades you can consider to improve performance, reliability, and overall driving experience. But before you start throwing money at upgrades, think about what you want to achieve. Are you looking for more power, better fuel economy, or improved reliability? Knowing your goals will help you choose the right upgrades.

• ECU Remapping: A remap can optimize the engine's performance by adjusting parameters such as fuel injection, turbo boost, and timing. This can result in increased power and torque, as well as improved fuel economy. However, it's important to choose a reputable tuner who knows what they're doing. A poorly executed remap can damage your engine. Research your options carefully and choose a tuner with a proven track record. Also, be aware that remapping may void your warranty.
• Performance Air Filter: A high-flow air filter can improve airflow to the engine, potentially resulting in a small increase in power and improved throttle response. These filters are often washable and reusable, making them a cost-effective upgrade in the long run. Just make sure to clean and oil them regularly to maintain their performance. Consider a panel filter that fits in the factory airbox for a simple and effective upgrade.
• Upgraded Intercooler: An upgraded intercooler can improve the engine's cooling efficiency, resulting in increased power and reduced turbo lag. This is especially beneficial if you've remapped the ECU or are planning to do so. Look for an intercooler that is larger and more efficient than the factory unit. Proper installation is crucial for optimal performance.
• Performance Exhaust System: A performance exhaust system can reduce backpressure and improve exhaust flow, resulting in increased power and a sportier sound. Be aware that some exhaust systems may be louder than others, so choose one that meets your needs and local regulations. Consider a cat-back system for a balance of performance and affordability.
• Suspension Upgrades: While not directly related to the engine, suspension upgrades can significantly improve the Forester's handling and overall driving experience. Consider upgrading to stiffer springs, dampers, or anti-roll bars. This can make the Forester feel more planted and responsive on the road. Research different suspension options to find the best setup for your driving style and needs.

Maintaining Your Subaru Forester 2.0 Diesel Turbo

Maintenance is key to keeping your Subaru Forester 2.0 diesel turbo running smoothly for years to come. Regular servicing, using quality parts, and addressing problems promptly can prevent major headaches down the road. Think of it like this: a little TLC goes a long way!

• Regular Oil Changes: Use the correct grade of oil and change it according to the manufacturer's recommendations, or even more frequently if you do a lot of short trips or heavy towing. Oil is the lifeblood of your engine, so don't skimp on it. Always use a high-quality oil filter to ensure proper filtration.
• Fuel Filter Replacement: Replace the fuel filter regularly to prevent debris from clogging the injectors. A clogged fuel filter can lead to poor performance and even engine damage. Refer to your owner's manual for the recommended replacement interval.
• Air Filter Cleaning/Replacement: Clean or replace the air filter regularly to ensure proper airflow to the engine. A dirty air filter can reduce performance and fuel economy. Inspect the air filter regularly and clean or replace it as needed.
• DPF Regeneration: Ensure that the DPF regenerates properly by taking occasional longer drives at highway speeds. This allows the exhaust to heat up and burn off the accumulated soot. If you mostly do short trips, consider using a diesel fuel additive to aid in DPF regeneration. Monitor your DPF warning light and take action if it illuminates.
• Regular Inspections: Inspect your engine regularly for leaks, worn hoses, and other potential problems. Catching problems early can prevent them from escalating into major repairs. Pay attention to any unusual noises or smells coming from the engine.

Conclusion

The Subaru Forester 2.0 diesel turbo is a capable and practical vehicle, but it's important to be aware of its potential problems and how to address them. By following a regular maintenance schedule and considering appropriate upgrades, you can keep your Forester running smoothly and reliably for years to come. So, get out there and enjoy the open road! Remember, a well-maintained Forester is a happy Forester! Happy driving, guys!