What is the construction and purpose of engine cooling?

Engine cooling is a set of parts responsible for maintaining the proper operating temperature of the powertrain. A typical system consists of a radiator, water pump, thermostat, hoses, fan, sensors, and an expansion tank. These elements are located mainly in the engine compartment and connected by a coolant circuit.

What is engine cooling used for?

Engine cooling is used to absorb excess heat from the block and cylinder head and to stabilize the operating temperature during driving and when stationary. An efficient system limits the risk of overheating and also affects the proper operation of the heater, fan, and control sensors. Without proper cooling, engine performance may drop, and cooperating components may fail.

What role does the expansion tank play in the cooling system?

The expansion tank is a cooling system element that absorbs fluid volume changes resulting from temperature increases and decreases. It is used to maintain the correct fluid level and works with a pressure cap that stabilizes the system's operating conditions. Fluid levels and the condition of return hoses are often checked within its vicinity.

How to choose a cooling system part for a specific car version?

It is safest to compare the OEM number, engine version, body type, and mounting location. It is also worth checking the number of pins in the plug, pipe diameter, mounting type, and the presence of additional sensors. For parts such as a fan or auxiliary pump, the control method also matters.

What symptoms indicate cooling system problems?

Typical symptoms include rising engine temperature, fluid leaks, the fan not turning on, steam from under the hood, or the unit taking too long to warm up. In some cars, temperature sensor errors or weaker interior heating also appear. Symptoms should be analyzed in conjunction with the operation of the thermostat, water pump, and hose tightness.

What to pay attention to when installing engine cooling parts?

After installation, you must check the tightness of connections, correct seating of mounts, and the condition of seals. It is also important to top up with the correct fluid and bleed the system according to the manufacturer's procedure. In the case of electrical parts, you should additionally verify the plugs, wiring harness, and fan control operation.

Engine cooling

At the Global Parts automotive store, we offer a wide selection of original used car parts, including engine cooling components, for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.

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Audi A4 B8 Auxiliary Water Pump Bracket Holder 8K0819263B

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4G0122109

Audi A7 4G Water Cooling Coolant Hose Pipe Line Rear Left N/S 4G0122109

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 5Q0121070BC

Audi Q3 8U Water Hose Engine Coolant Cooling Pipe Line 2.0 TDI 5Q0121070BC

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 4G0122109A

Audi A7 4G Water Cooling Coolant Hose Pipe Front Left N/S 3.0 TDI 4G0122109A

£18.95

Free delivery: Sep 08

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Part no. 8E0121109Q

Audi A4 B7 Water Pipe Engine Cooling Radiator Coolant Hose 3.2 Petrol 8E0121109Q

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 03C121070M

Audi A1 8X Water Pipe Hose Line Engine Cooling Coolant Unit Hose 03C121070M

£13.95

Free delivery: Sep 08

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Part no. 8J0121051P

Audi TT 8J Engine Water Coolant Pipe Hose Line 2.0 TDI Diesel Engine 8J0121051P

£28.95

Free delivery: Sep 08

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Part no. 4G0819374L

Audi A6 C7 A7 4G Coolant Hose Pipe Line 3.0 TDI CVUA 4G0819374L

£13.95

Free delivery: Sep 08

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Part no. 3C0121447L

Audi A3 8P VW Passat 3C Touran 1T Coolant Hose Pipe Line Tube 3C0121447L

£47.95

Free delivery: Sep 08

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Part no. 8E0121205AB

Audi A4 B7 Radiator Cooling Fan Control Unit 2.0 TFSI Petrol8E0121205AB

£37.95

Free delivery: Sep 08

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Part no. 1K0122096J

Seat Leon II VW Golf MK5 Audi A3 8P Water Hose Coolant Pipe Petrol 1K0122096J

£18.95

Free delivery: Sep 08

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Part no. 8R0121055H-1

Audi Q5 8R Water Cooling Pipe Coolant Hose Tube Line 8R0121055H 4F0122293A

£23.95

Free delivery: Sep 08

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Part no. 4G0121447CA

Audi A6 C7 A7 4GA Engine Water Coolant Pipe Hose Line Petrol 4G0121447CA

£18.95

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Part no. rhd-4F2819374

Audi A6 C6 Water Hose Radiator Coolant Cooling Tube Pipe Line 4F2819374

£18.95

Free delivery: Sep 08

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Part no. 4G0819377K

Audi A6 A7 C7 3.0 TDI Coolant Water Hose Pipe Line Tube 4G0819377K

£13.95

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Part no. 5G0965561

Audi A3 8V 1.4 TFSI CXSA Additional Auxiliary Water Pump 5G0965561

£23.95

Free delivery: Sep 08

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Part no. 4G0122293CR

Audi A6 C7 Water Coolant Pipe Hose Line Tube 2.0 TDI Diesel Engine 4G0122293CR

£66.95

Free delivery: Sep 08

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Part no. 1K0122073FS

Volkswagen Audi Seat Skoda Water Hose Radiator Coolant Pipe Line 1K0122073FS

£18.95

Free delivery: Sep 08

If paid before 14:00

Part no. 7L8121065D-1

Audi Q7 4L Engine Coolant Hose Line Tube Pipe 3.0 TDI Diesel 7L8121065D

£23.95

Free delivery: Sep 08

If paid before 14:00

Part no. 059121004G

Audi A5 8T 3.0 TDI CCWA Diesel Auxiliary Additional Water Pump 059121004G

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0819342J

Audi A5 8T 2.0 TDI Coolant Water Hose Line Cooling Tube Pipe 8K0819342J

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 06K103495AS

Audi A4 B9 A5 F5 Engine Oil Separator Breather Petrol 2.0 TFSI DDWA 06K103495AS

£28.95

Free delivery: Sep 08

If paid before 14:00

Part no. 3AA122157

Audi TT 8J Volkswagen Passat Water Coolant Hose Pipe Line 3AA122157

£13.95

Free delivery: Sep 08

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Part no. 03L121071

Audi A4 B8 A5 8T A6 C6 Water Coolant Cooling Pipe Hose Line 2.0 TDI 03L121071

£13.95

Free delivery: Sep 08

If paid before 14:00

Part no. 8K0121403Q

Audi A4 B8 8K A5 8T Water Coolant Expansion Reservoir Tank 8K0121403Q

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Audi A6 C6 Auxiliary Water Pump Electric Coolant Unit Valve 4F2959617B

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Audi Seat Skoda Volkswagen Auxiliary Water Pump Valve Coolant 5Q0906457K

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Audi A3 8P TT 8J VW Golf GTI 2.0 TFSI Breather Valve Oil Separator 06F129101R

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Audi A3 8V Expansion Header Overflow Coolant Bottle Tank Reservoir 5Q0121407M

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Audi Q5 8R Coolant Mounting Radiator Holder Bracket Set 8K0805201

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Audi A3 8V Water Coolant Pipe Radiator Hose Cooling Fluid Line 5Q0122051EG

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Audi S5 8T 4.2 FSI CAUA Upper Coolant Radiator Hose Line Pipe 8K0121101L

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Audi A7 4G 3.0 TDI CDUD Water Radiator Coolant Pipe Hose Tube Line 4G0121049L

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Audi TT 8N Coolant Radiator Engine Cooling Unit Radiator Cooler 1K0121251AB

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Audi A6 C7 Engine Cooling Double Coolant Fan Motor Shroud 3.0 Diesel 4H0121003M

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Radiator Fan Shroud Audi A3 8V Q2 GA Engine Cooling Fan Motor 400W 5Q0121205AL

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Audi Q2 GA 1.5 TFSI Radiator Fan Motor Engine Cooling Fan 5Q0121203DE

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