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.

More information

Find it faster

Match to your vehicle

Make

Audi Q7 4L 3.0 TDI Water Coolant Pipe Hose Line 7L8121073H

Product currently unavailable

Part no. 8K0121055AC

Coolant Pipe Audi A4 B8 A5 8T 2.0 TDI Water Cooling Line 8K0121055AC

Product currently unavailable

Part no. 5Q0121113J

Audi Q3 F3 Coolant Hose Pipe Line 5Q0121113J

Product currently unavailable

Part no. 5QF121049AP

Audi Q3 F3 VW Tiguan Mk2 Engine Water Coolant Pipe Hose 2.0 TDI 5QF121049AP

Product currently unavailable

Part no. 04L906088CH

Audi A1 8X 1.6 TDI Diesel Exhaust Gas Temperature Sensor 04L906088CH

Product currently unavailable

Part no. 5Q0121407D

Audi A3 8V Expansion Tank Header Coolant Reservoir Bottle 5Q0121407D

Product currently unavailable

Part no. 04L131552DP

Audi A3 8V 30 TDI DGTE Diesel Exhaust Gas Pressure Sensor Pipe Hose 04L131552DP

Product currently unavailable

Part no. 06K103495AN

Audi Q5 FY Pressure Regulating Valve Engine Oil Separator 2.0 TFSI 06K103495AN

Product currently unavailable

Part no. 4M0965567B

Audi Q7 4M VW Touareg 7P Electric Auxiliary Water Pump Unit 3.0 TDI 4M0965567B

Product currently unavailable

Part no. 8K0317818DL

Audi A5 8T Automatic Gearbox Oil Pressure Line 8K0317817DF

Product currently unavailable

Part no. 079121013N

Audi S8 D3 Q7 Coolant Pump Water Cooling Thermostat Housing 079121013N 079010D

Product currently unavailable

Part no. 8K0145931D

Audi S4 B8 Engine Water Coolant Pipe Hose Left N/S Outer 3.0 TFSI 8K0145931D

Product currently unavailable

Part no. 07L121053E

Audi S6 C6 S8 D3 Quattro 5.2 FSI V10 BSM Coolant Pipe Hose Water Line 07L121053E

Product currently unavailable

Part no. 6C0122101AM

Audi A1 8X 1.6 TDI Diesel Water Coolant Pipe Hose Cooling Line 6C0122101AM

Product currently unavailable

Part no. 05L121111H

Audi A4 B9 A5 F5 Engine Coolant Thermostat Housing Diesel 2.0 TDI 05L121111H

Product currently unavailable

Part no. 06K121497AQ

Audi S3 8V Water Hose Cooling Coolant Pipe Line 06K121497AQ

Product currently unavailable

Part no. 5N0121051H

Audi Q3 8U 2.0 TDI Engine Water Coolant Pipe Hose 5N0121051H

Product currently unavailable

Part no. 4K0122101BB

Audi A6 C8 A7 4K Water Hose Radiator Coolant Pipe Line Diesel 4K0122101BB

Product currently unavailable

Part no. 4F0121055AC

Audi A6 C6 Engine Cooling Coolant Hose Pipe Line 2.7 TDI 4F0121055AC

Product currently unavailable

Part no. 06L121111M-2

Audi S3 8Y Q5 FY Water Pump Thermostat Regulator 2.0 TFSI 06L121111M

Product currently unavailable

Part no. 4E0121052C

Audi S8 D3 Water Coolant Cooling Connecting Pipe Hose Line 5.2 Petrol 4E0121052C

Product currently unavailable

Part no. 80A122055AK

Audi SQ5 FY Water Hose Cooling Radiator Coolant 80A122055AK

Product currently unavailable

Part no. 5N0122051AT

Audi Q3 8U 2.0 TDI Engine Water Coolant Pipe Hose 5N0122051AT

Product currently unavailable

Part no. 7L8121065R

Audi Q7 4L 3.0 Diesel Engine Coolant Hose Line Tube Pipe 7L8121065R

Product currently unavailable

Part no. 8N0422885F

Audi TT 8N Low Pressure Return Power Steering Pipe Line 3.2 Petrol 8N0422885F

Product currently unavailable

Part no. 057121598L

Audi Q7 4L 4.2 TDI Alternator Turbo Coolant Pipe Hose Right O/S 057121598L

Product currently unavailable

Part no. 8K0121212C

Audi RS4 B8 Additional Auxiliary Radiator Left N/S Engine Cooling 8K0121212C

Product currently unavailable

Part no. 04L121444J

Audi A3 8V 30 TDI DGTE Diesel Engine Coolant Hose Line Tube Pipe 04L121444J

Product currently unavailable

Part no. 1K0959455FJ

Audi A3 8P Radiator Fan Engine Motor Cooling 1K0959455FJ

Product currently unavailable

Part no. 5Q0122101CM

Audi A3 8V 35 TDI DFGA Water Coolant Hose Line Pipe Tube 5Q0122101CM

Product currently unavailable

Part no. 03L121065A

Audi A3 8P Water Coolant Pipe Hose Tube 2.0 TDI CBAB 03L121065A

Product currently unavailable

Part no. 7H0819617-1

Audi Q7 4L Webasto Auxiliary Water Heater Air Filter Unit 7H0819617

Product currently unavailable

Part no. 8J0121073E

Audi TT 8J 2.5 TFSI Water Coolant Pipe Hose Line 8J0121073E

Product currently unavailable

Part no. 4F0959455J

Audi A6 C6 Coolant Radiator Fan Motor Shroud Right O/S TDI 400W 4F0959455J

Product currently unavailable

Part no. 03N115389H

Oil Filter Housing Audi A4 B8 A5 8T Q5 8R 2.0 TDI Engine Oil Cooler 03N115389H

Product currently unavailable

Part no. 8R0122101S

Audi Q5 8R Water Coolant Pipe Hose Line 8R0122101S

Product currently unavailable

Part no. 06M115401F

Audi A4 S4 B9 Oil Filter Housing Oil Cooler 3.0 TFSI V6 Petrol 06M115401F

Product currently unavailable

Part no. 4F0121107AN

Audi A6 C6 Coolant Breather Vent Pipe Hose 2.0 TDI Diesel 4F0121107AN

Product currently unavailable

Part no. 06M103515F

Oil Separator Audi S4 B9 S5 5F 3.0 TFSI V6 Breather Valve 06M103515F

Product currently unavailable

Part no. 04L121058AA

Audi TT FV A5 F5 Water Hose Cooling Coolant Pipe Line 2.0 TDI Diesel 04L121058AA

Product currently unavailable

Part no. 8K0805201A

Audi Q3 8U Q3 S3 Radiator Support Mount Holder Left Right N/O/S 8K0805201A

Product currently unavailable

Part no. 4K0145879AA

Audi A6 C8 Auxiliary Water Coolant Pump Mount Bracket Holder 4K0145879AA

Product currently unavailable

Part no. 04L121058H

Audi TT FV Q3 8U Water Hose Cooling Coolant Pipe Line 2.0 TDI Diesel 04L121058H

Product currently unavailable

Part no. 5Q0122051AL

Audi A3 8V Water Coolant Cooling Pipe Hose Line Diesel Engine 5Q0122051AL

Product currently unavailable

...

Showing 1486-1529 of 1529 products