Are Coolant Flushes Really Necessary?

Are Coolant Flushes Really Necessary?

A few weeks ago, a client’s temperature warning light came on while they were running errands. After waiting for their car to cool down, they brought their car in for an inspection. We took a look and found that the water pump was leaking and needed to be replaced. Without a working water pump, the engine can become overheated very easily. 

We also inspected the radiator hoses, serpentine belt, and tensioner–all of which were OK. However, the coolant was long overdue for a flush and replacement. When we told our client what was needed, they were surprised. In fact, they weren’t even aware that coolant changes should be done on a regular schedule. 

Our client isn’t alone–many drivers aren’t aware that coolant changes are a part of regular vehicle maintenance or understand exactly why they’re important. If you fall into this category, read on to learn more about this necessary service. 

Why Are Coolant Flushes Important?

Just as with other automotive fluids, coolant (also called antifreeze) plays a significant role in how well your vehicle runs. 

Coolant is responsible for pulling excess heat away from your engine and other components, which helps maintain a healthy operating temperature and prevent overheating. This also helps preserve the life of your engine and prevent expensive repairs, like a broken head gasket. Coolant also helps prevent the water pump from freezing during cold temperatures, rust and corrosion from developing in the cooling system, and plastic parts from becoming brittle and damaged.

If the coolant level gets too low, it can potentially cause irreparable engine damage. For this reason, it’s very important to monitor your coolant levels and top it off as needed. If you suspect a coolant leak, it should be repaired as soon as possible. However, it’s not enough to just keep your fluid at the right level–it should also be replaced from time to time. 

Coolant, like oil, starts to break down over time. When this happens, the coolant not only becomes less effective at cooling your engine, but it also begins to become corrosive. Coolant that goes too long between fluid changes can damage the radiator, head gasket, intake manifold gaskets, heater core, metal cooling pipes, spark plugs, and more. This is why it should always be changed on a regular schedule–typically every 30,000 miles or three to five years. 

It’s much easier (and cost-effective) to have your coolant flushed and replaced than to deal with repairs. During a coolant flush, we drain out all the old coolant and replace it with fresh coolant. Beyond protecting your engine better from overheating, coolant flushes also provide the following benefits:

  • Removes rust, corrosion, and other buildup that could affect the efficiency of your cooling system
  • Lubricates the water pump and extends its life
  • Prevents rust from forming in the water pump
  • Prevents additional damage from old, corrosive fluid

In addition, we inspect the entire cooling system during a routine coolant flush, so if there are any other issues that might be developing, we can handle them proactively. 

Common Signs Your Vehicle Needs a Coolant Flush

There are several signs that indicate your car is due for a coolant flush, including:

  • Engine overheating
  • A sweet smell coming from under the hood
  • Odd noises coming from under the hood, like gurgling or or hissing 
  • Low coolant levels or dirty-looking coolant
  • Visible coolant leaks under your vehicle
  • Heater malfunctions

Protect Your Engine–Schedule a Coolant Flush Today

If your car, truck, or SUV is due for a coolant flush, or you’ve noticed any of the above issues, contact EuroCar Service today! We offer complete auto care for all European models, including Audi, Fiat, BMW,Land Rover, Mercedes, Mini Cooper, Saab, Jaguar, Volkswagen, Volvo, and Smart Car. Call us today at 206-527-8828 or request an appointment online

The Importance of Using the Correct Fluids in Your Vehicle

The Importance of Using the Correct Fluids in Your Vehicle

Advancements in automotive technology have also led to the development of high-tech automotive fluids. One example of this is the cooling system. For decades, the cooling system was primarily made from iron, steel, and rubber hoses. There was only one kind of coolant available to protect the system’s components from corrosion. 

Fast forward to today. Late-model vehicles’ cooling system components are manufactured using various types of metal alloys and plastics. Unsurprisingly, these materials need different types of additives in the coolant to help protect them from corrosion—and since materials vary from manufacturer to manufacturer, there are several different kinds of coolant on the market. 

Understanding the Advancements in Automotive Fluids

Since coolant contains different additives that offer protection for specific materials, it’s important to use the right type. If you add the wrong kind of coolant, it won’t protect the cooling system—and in some cases, it may even void your warranty! If you think you might have used the wrong fluid, it’s best to play it safe. Bring your vehicle to the shop, and our technicians can flush the system and give it a fresh start with the right fluid. 

Brake fluid is another automotive fluid that can cause confusion. In the past, most vehicles used Dot 3 brake fluid; now there’s Dot 4 and Dot 5. Despite what some people think, these new additions aren’t upgrades—they’re completely different formulations specifically designed to meet the needs of different brake systems. Just like coolant, only one type of brake fluid is recommended for your vehicle. 

Transmission fluid also has different formulations designed to meet the advanced needs of modern automatic transmissions. However, nowhere are the advances in automotive fluids more evident than in motor oil. There’s now a variety of formulations and weights manufactured specifically to meet the demands of modern engines. 

A large part of this is due to the fact that modern engines contain more parts and have tighter tolerances than engines of the past. With each passing year, engines are designed to be more powerful and fuel-efficient. This means the oil they use must be formulated to lubricate, clean, and protect more parts while being thin enough to travel through smaller passageways—while also being resistant to vaporization. 

If your vehicle came from the factory with synthetic fluids, it’s important to use synthetics when you have your vehicle serviced. Your service intervals will be based on synthetic fluid intervals, rather than conventional fluid intervals. 

Keep Your Fluids in Check at EuroCar Service

Each type of fluid plays an important role in the way your vehicle functions. Since the grades of oil and types of coolant, transmission fluid, and brake fluid are so carefully matched to the vehicle, you should always take care to use the correct fluid if you top your fluids off at home. The wrong fluids can cause damage, so check your owner’s manual or ask your service advisor if you’re unsure about what to use. 

If you’re not comfortable checking or topping off your fluids yourself, EuroCar Service is always here to help! We see all European makes, including AudiFiatBMWLand RoverMercedesMini CooperSaabJaguarVolkswagenVolvo, and Smart Car. Call us today at 206-527-8828 or request an appointment online

Radiator Fans and Your Vehicle’s Cooling System

Radiator Fans and Your
Vehicle’s Cooling System

Introduction: If you’re old enough to have been around cars a few decades ago, you’ve probably heard the term “fan belt” tossed around. Back in the day, the radiator fan in your vehicle was turned by a belt driven by the engine. While those belt-driven fans are still found in some vehicles today, most modern cars have transitioned to electric fans. 

The Basics of Cooling

As your vehicle’s engine runs, it generates a significant amount of heat; this is where the cooling system comes into play to prevent overheating. Coolant (also called antifreeze) circulates through the cooling system and captures heat from the engine. The coolant then flows into the radiator, where air cools both the radiator and the coolant before returning it to the engine to absorb more heat. The key is to keep the engine within an ideal temperature range–not too hot and not too cool.

In today’s vehicles, electric radiator fans play a pivotal role in helping to keep your engine at the optimal temperature. A switch, strategically placed within the cooling system, continuously monitors the coolant’s temperature. When the coolant’s temperature hovers at the lower end of the safe range, the switch turns off the fan motor. However, as the coolant temperature rises, the switch springs into action, turning on the fan to cool things down.

Many modern vehicles are equipped with two radiator fans. Depending on various conditions, one or both fans may be operating at any given time. When cruising at highway speeds, the rush of air over the radiator and around the engine naturally helps in controlling heat. On the flip side, city driving with frequent stops and starts doesn’t offer the same natural airflow, so radiator fans have to work overtime to maintain the optimal temperature.

Air Conditioning and Radiator Fans

If you’ve ever wondered why your radiator fan seems to be working harder when you’re using the air conditioning, here’s the answer: when you engage the A/C, it adds an extra load to the engine, generating more heat. To counter this, the radiator fan often kicks in to dissipate the extra heat created by the air conditioner, ensuring your engine doesn’t overheat under the added strain.

Maintenance Matters

Now, here’s a crucial point to remember–radiator fan motors and the switch are wear-and-tear items. Over time, they will eventually fail. If you ever find your temperature light coming on while driving, it’s likely due to a cooling system issue. At this point, it’s essential to schedule a cooling system inspection. Regular servicing will not only keep your engine running smoothly but also extend the lifespan of all the cooling system components.

Radiator fans may not be the most glamorous part of your vehicle, but they’re essential for maintaining the health of your engine. If you suspect an issue with your cooling system or are due for maintenance, schedule an appointment at EuroCar Service! We specialize in complete care for European makes, including Audi, BMW, Mercedes, Land Rover, Mini-Cooper, Fiat, Volvo, Volkswagen, Saab, Jaguar, and Smart Car

Schedule an appointment with us today at (206) 527-8828, or request an appointment through our online form.