O'Fallon Auto Repair

When it comes to performance and engineering, few automotive manufacturers stand out as Audi and Volkswagen do. Renowned for their precision, innovation, and a commitment to driving excellence, both brands have incorporated cutting-edge technology in their vehicles. One of their most notable advancements is the Direct Shift Gearbox (DSG) transmission, a feature that has redefined the driving experience for many enthusiasts and everyday motorists alike. In this blog post, we will delve into how the DSG transmission works, how it differs from traditional transmission systems, potential drawbacks, symptoms of failure, maintenance needs, and why Hillside Auto Repair is your go-to expert for these systems. What Is a Direct Shift Gearbox (DSG)? The Direct Shift Gearbox (DSG) is a type of dual-clutch automated manual transmission (AMT), first developed by Volkswagen and later integrated into Audi models. It combines the efficiency of a manual transmission with the convenie ... read more

If you've ever found yourself in the midst of an engine problem, you may have heard the term "serpentine belt" tossed around. This often-overlooked part is crucial to the operation of your vehicle, playing an essential role in powering a variety of key engine components. But what exactly is a serpentine belt, what does it do, and how can you tell if it’s failing? In this post, we’ll dive deep into all things serpentine belts, including their function, symptoms of failure, and how Hillside Auto Repair can help keep your car in tip-top shape. What is a Serpentine Belt? The serpentine belt is a long, winding rubber belt that snakes its way around multiple components of the engine. The term "serpentine" comes from its design, which typically weaves across the engine's pulleys in a serpentine (or snake-like) pattern. This belt is designed to drive several vital components of the engine, making it a critical part of your vehicle&rsqu ... read more

If you've ever popped the hood of your car and noticed not one, but two batteries, you might have been surprised. While most vehicles traditionally rely on a single battery to power the electrical systems, some modern cars, trucks, and luxury vehicles are now equipped with a secondary power source — the auxiliary battery. But what exactly is an auxiliary battery, and why do some automakers choose to include this extra piece of equipment? Understanding the Auxiliary Battery In essence, the auxiliary battery is an additional power source that supports the primary battery, typically in hybrid, electric, or luxury vehicles. The main battery in a vehicle powers the engine and basic systems, but the auxiliary battery is designed to manage secondary electrical systems such as entertainment systems, power seats, and advanced driver-assistance systems (ADAS). It’s also used in electric or hybrid vehicles to assist with power storage, ensuring that the car can ... read more

As winter settles in with its freezing temperatures, snowstorms, and icy roads, there are numerous things to think about when it comes to car maintenance. Among the often-overlooked systems that require special attention during the colder months is your vehicle's exhaust system. While many drivers focus on the more obvious winter car maintenance tasks, such as tire checks, battery inspections, and fluid levels, the exhaust system can easily be neglected. In this blog post, we’ll dive deep into how the exhaust system works, why winter conditions can hide potentially dangerous issues, and how Hillside Auto Repair can help with exhaust system repairs and maintenance. How the Exhaust System Works in a Combustion Engine Before we get into the specifics of why exhaust system issues are particularly hazardous during winter, let’s first take a look at how the system works in a combustion engine. The exhaust system in your car serves several crucial function ... read more

As we enter a new year, many people embrace the idea of starting fresh. A common New Year’s resolution is to make big changes, and one of the most exciting ways to do that is by purchasing a new car. Whether you’ve been dreaming of upgrading your ride, or your old car is just no longer cutting it, a new vehicle can bring a sense of renewal and excitement. But before you get caught up in the thrill of that new car smell or envisioning yourself behind the wheel, there's an important factor to consider—is that new car actually new? If you’re thinking about buying a used car this year, we’ve got great news: you’re not alone! The used car market is booming, offering consumers a wide range of vehicles at more affordable prices than new models. However, purchasing a used car comes with its own set of risks. Just because a car looks great in photos or has low mileage doesn’t mean it’s in perfect condition. That’s why before you hand ov ... read more