Also known as an auxiliary heater or coolant heater, it is a device that forms part of the thermal management system, particularly in vehicles with diesel engines. Its function is to rapidly raise the temperature of the coolant fluid before the engine reaches its optimal operating temperature.

The heating process performed by this device serves two purposes:

• It protects the engine by allowing it to reach its ideal operating temperature more quickly, reducing wear and harmful emissions during cold starts.
• It ensures that the car's heating system delivers warm air to the cabin in less time, improving comfort for all passengers inside.

Indeed, there are several types of water heaters for cars. The most common is the electric auxiliary heater, which uses a heating element to warm the coolant. Others burn fuel to generate heat and are known as Webasto/Eberspächer units or parking heaters.

The reasons are clear:

• It is more affordable.
• You can find the exact part for your specific car model.
• You are covered by a comprehensive warranty in case the part fails.
• We can advise you or source the part you need for your vehicle.

In short, buying a water heater from our auto recycler is all upside for you.

This component is most common — and most necessary — in cars with a diesel engine, as they take longer to warm up. In mild climates, it is more of a comfort feature than a mechanical necessity.

Its main function is to speed up the warming of the engine's coolant fluid. This helps the engine reach its optimal temperature more quickly — reducing wear and emissions — and allows the car's cabin to heat up faster.

The most common symptoms are:

• The cabin takes longer than usual to warm up after you start the engine.
• In fuel-burning models, you may notice the smell of fuel inside the car or see smoke beginning to appear.
• If the car uses an electric heating element model, the heater may stop working altogether or cause electrical short circuits.

The most important thing is compatibility — the part must match your car's exact model. Don't worry about the condition or connectors, as we make sure to inspect and verify that every part is in perfect condition before listing it for sale.

Their main differences are:

• The electric heater, also known as a resistance heater, uses energy from the battery or alternator to heat the coolant.
• Fuel-powered heaters — that is, parking heaters — use a small amount of diesel or gasoline from the tank in a combustion chamber to heat the coolant.

No, they are completely different parts:

• Glow plugs are heating elements that directly warm the combustion chamber, helping to ignite diesel fuel.
• The auxiliary water heater warms the engine coolant, not the combustion air.

Before installing the part, the coolant must be drained, and once the part is in place, the system should be refilled with fresh coolant and bled to prevent air bubbles from forming. Since this is a complex part to install — and the entire process involved once it's fitted — it's best to have a mechanic handle it.