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 A5 8T Water Coolant Pipe Hose Line Tube 04L121065AN

Product currently unavailable

Part no. 8K0145922A

Audi S4 B8 Engine Coolant Pipe Hose Line Left N/S Outer 3.0 TFSI 8K0145922A

Product currently unavailable

Part no. 4K0819337S

Audi A6 C8 3.0 TFSI DLZA Engine Coolant Pipe Hose Line 4K0819337S

Product currently unavailable

Part no. 059121670G-1

Audi A7 4G8 Cooling Hose Coolant Pipe Line 059121086BG

Product currently unavailable

Part no. 5Q0121619A

Audi A3 8V TT FV VW Golf Mk7 Water Coolant Connector Flange Diesel 5Q0121619A

Product currently unavailable

Part no. 4K0819374Q

Audi A6 C8 Engine Coolant Pipe Water Hose Cooling Line Tube 4K0819374Q

Product currently unavailable

Part no. 5Q0906457C

Audi A3 8V A3 8Y A5 B10 A6 C8 A7 4K Water Cooler Pump Control Valve 5Q0906457C

Product currently unavailable

Part no. 03C121065L

Audi A1 8X Petrol Water Coolant Hose Pipe 03C121065L

Product currently unavailable

Part no. 8XA121331B

Audi A1 S1 GB 8X Water Coolant Radiator Seal Cover Bracket Left N/S 8XA121331B

Product currently unavailable

Part no. 1K0959455DH

Audi A3 8P Air Con Radiator Motor Cooling Fan 1K0959455DH

Product currently unavailable

Part no. 07K117021G

Audi RS3 8Y RSQ3 F3 Engine Oil Cooler Coolant Unit 2.5 TFSI Petrol 07K117021G

Product currently unavailable

Part no. 06H121085H

Audi A5 8T 2.0 TFSI Water Hose Cooling Radiator Coolant Pipe Line 06H121085H

Product currently unavailable

Part no. 06K121492F

Audi S3 8V VW Golf Mk7 Cooling Water Hose Coolant Pipe Line 2.0 TFSI 06K121492F

Product currently unavailable

Part no. 83A121332A

Audi Q3 F3 Additional Cooler Sealing Strip Right O/S 83A121332A

Product currently unavailable

Part no. 5Q0121049K

Audi A3 8V Radiator Coolant Hose Pipe Tube Line 1.4 TFSI 5Q0121049K

Product currently unavailable

Part no. 059906088BJ

Audi Q7 4L 3.0 TDI CLAB Diesel Temperature Exhaust Gas Sensor 059906088BJ

Product currently unavailable

Part no. 8J0201216C

Audi TT 8J Water Coolant Hose Line Return Tube Pipe 8J0201216C

Product currently unavailable

Part no. 06H121057H

Audi A4 S4 B8 8K A5 S5 8F 8T Thermostat Coolant Hose Pipe Line 06H121057H

Product currently unavailable

Part no. 06H121026N

Audi A3 8P VW Golf MK6 Engine Coolant Water Pump 1.8 TFSI Petrol 06H121026N

Product currently unavailable

Part no. 06K115243B

VW Golf Mk7 Audi A3 8V Oil Pressure Control Valve 2.0 TFSI CJXC 06K115243B

Product currently unavailable

Part no. 04L122157BH

Audi A5 8T A6 C7 Engine Water Coolant Pipe Hose Line 2.0 TDI 04L122157BH

Product currently unavailable

Part no. 4K0819377S

Audi A6 C8 Engine Cooling Coolant Drain Pipe Hose Tube Line 4K0819377S

Product currently unavailable

Part no. 07K103207

Oil Separator Pipe Audi RS3 8V TTRS 8S 2.5 TFSI Breather Hose Line 07K103207

Product currently unavailable

Part no. 1K0122101DK-2

Audi A3 S3 TT 8J CDLA Upper Radiator Coolant Hose Line Pipe Tube 1K0122101DK

Product currently unavailable

Part no. 4K2819347F

Audi A6 C8 Coolant Hose Line Pipe Tube Engine Cooling 4K2819347F

Product currently unavailable

Part no. 03G121473

Audi A4 S4 Avant 8E Water Coolant Pipe Hose 2.0 Diesel Engine Vent 03G121473

Product currently unavailable

Part no. 2Q0121407

Audi A1 GB Coolant Header Expansion Tank Reservoir Bottle 2Q0121407

Product currently unavailable

Part no. 7L8122096F

Audi Q7 4L Engine Coolant Hose Pipe Line Tube 7L8122096F

Product currently unavailable

Part no. 8W0121030R-1

Audi A4 B9 A5 F5 Water Coolant Hose Pipe Line 2.0 TDI 8W0121030R

Product currently unavailable

Part no. 06F115397H

Audi A4 B7 VW Golf Mk6 Oil Filter Housing Oil Cooler 2.0 Petrol 06F115397H

Product currently unavailable

Part no. 4K0819342J

Audi A6 C8 Engine Coolant Pipe Line Heating Hose 2.0 TFSI Hybrid 4K0819342J

Product currently unavailable

Part no. 4F0121081G

Audi A6 C6 Water Hose Coolant Cooling Tube Pipe Line 2.7 Diesel 4F0121081G

Product currently unavailable

Part no. 5N0121064J

Coolant Hose Audi Q3 8U Volkswagen Tiguan 5N Metal Pipe Radiator 5N0121064J

Product currently unavailable

Part no. 4G0121071N-1

Audi A6 C7 A7 4G Water Coolant Hose Line Tube Pipe 3.0 TDI 4G0121071N

Product currently unavailable

Part no. 8V0121124

Audi RS3 8V Engine Oil Coolant Hose Pipe Line Tube 2.5 TFSI 8V0121124

Product currently unavailable

Part no. 059121737AR

Audi A6 C8 A7 4G Q7 4M Coolant Control Regulating Valve 3.0 Diesel 059121737AR

Product currently unavailable

Part no. 4K0819460

Audi A6 C8 Engine Coolant Pipe Line Heating Hose 2.0 TFSI Hybrid 4K0819460

Product currently unavailable

Part no. 04L121064T-1

Audi Seat Volkswagen Skoda Engine Coolant Pipe Hose Line 04L121064T

Product currently unavailable

Part no. 8J0121101C-1

Audi TT 8J 2.0 TFSI Water Hose Cooling Coolant Radiator Pipe Line 8J0121101C

Product currently unavailable

Part no. 4G0819377AA

Audi A7 4G Water Hose Cooling Coolant Pipe Line 4G0819377AA

Product currently unavailable

Part no. 5N0122157BG

Audi Q3 SE Mk1 Water Coolant Pipe Hose Line Tube 5N0122157BG

Product currently unavailable

Part no. 8S0121284B

Audi TT FV Radiator Fan Air Guide Mount Bracket Right O/S 8S0121284B

Product currently unavailable

Part no. 059121004J

Audi A5 8T Additional Auxiliary Water Pump 059121004J

Product currently unavailable

Part no. 059121064N

Audi A6 C8 Q5 FY Q7 4M Water Hose Coolant Pipe Line 3.0 TDI 059121064N

Product currently unavailable

Part no. 1K0122051FD

Audi A3 8P 1.8 2.0 TFSI Petrol Radiator Coolant Pipe Hose Line 1K0122051FD

Product currently unavailable

Part no. 4K0121052H

Audi A6 C8 Engine Coolant Pipe Line Heating Hose 2.0 TFSI Hybrid 4K0121052H

Product currently unavailable

Part no. 5N0122086F

Audi Q3 SE Coolant Hose Engine Cooling System Hose Line Tube Pipe 5N0122086F

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. 078133753A

Audi RS4 B7 Jet Pump Intake Vacuum System Pipe Hose Line 4.2 FSI 078133753A

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. 4F0959455K

Audi A6 C6 Coolant Radiator Fan Motor Shroud Left N/S TDI 400W 4F0959455K

Product currently unavailable

Part no. 5N0122073AH

Audi Q3 SE Mk1 2.0 TDI Water Coolant Pipe Hose Line Tube 5N0122073AH

Product currently unavailable

Part no. 3Q0122058E

Audi Q2 GA 2.0 TDI Water Hose Cooling Radiator Coolant Pipe Line 3Q0122058E

Product currently unavailable

Part no. 059121465A

Audi A7 4G 3.0 TDI Quattro Water Hose Cooling Radiator Pipe Line 059121465A

Product currently unavailable

Part no. 5Q0121113J

Audi Q3 F3 Coolant Hose Pipe Line 5Q0121113J

Product currently unavailable

Part no. 059121085Q

Audi A6 C8 Q7 4M Coolant Water Pipe Hose Line Tube 3.0 TDI 059121085Q

Product currently unavailable

Part no. 5N0122101AS

Audi Q3 SE Coolant Hose With Quick Release Coupling Upper 5N0122101AS

Product currently unavailable

Part no. 8J0121157A

Audi TT TTS 8J Engine Coolant Hose Tube Line Quick Coupling 8J0121157A Automatic

Product currently unavailable

Part no. 059145736G

Audi A7 4G Turbocharger Lubrication Inlet Oil Feed Line Pipe 3.0 TDI 059145736G

Product currently unavailable

Part no. 8J0121063A

Audi TT TTS 8J Radiator Coolant Hose Pipe Tube Line 2.0 TFSI Petrol 8J0121063A

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. 4M0121321J

Audi A4 B9 Water Overflow Coolant Tank Bottle Cap Cover Trim 4M0121321J

Product currently unavailable

Part no. 1K0122101DK-1

Audi TT 8J Upper Radiator Coolant Hose Pipe 2.0 TFSI BWA 1K0122101DK

Product currently unavailable

Part no. 8W0121673B

Audi A4 B9 Radiator Air Guide Duct Channel Cover Panel Left N/S 8W0121673B

Product currently unavailable

Part no. 06A121133J

Audi TT Mk1 Engine Coolant Flange Water Housing 1.8T Petrol 06A121133J

Product currently unavailable

Part no. 5Q0122096G

Audi A3 8V VW Golf MK7 Auxiliary Electric Additional Water Pump 5Q0122096G

Product currently unavailable

Part no. 8J0121156A

Audi TTS 8J Radiator Coolant Hose Pipe Tube Line 2.0 TFSI Petrol 8J0121156A

Product currently unavailable

Part no. 1K0998262S

Audi A8 D3 A6 C6 Exhaust Gas Temperature NOX Lambda Probe Sensor 1K0998262S

Product currently unavailable

Part no. 1K0121096AB

VW Golf MK5 Audi Seat Skoda 1.9 TDI Water Hose Coolant Pipe Line 1K0121096AB

Product currently unavailable

Part no. 06E121045AS

Audi A4 S4 B8 S5 8T Water Hose Radiator Coolant Pipe Line 3.0 TFSI 06E121045AS

Product currently unavailable

Part no. 06E121045AN

Audi S4 B8 S5 8T Water Hose Radiator Coolant Pipe Line Tube 3.0 TFSI 06E121045AN

Product currently unavailable

Part no. 07L121481H

Audi A6 C6 S8 D3 Engine Water Coolant Pipe Line Tube Hose 07L121481H

Product currently unavailable

Part no. 1K0122101CC

Audi A4 B7 Water Hose Cooling Coolant Radiator Pipe Line 1K0122101CC

Product currently unavailable

Part no. 04L121064T

Audi A3 8V Engine Coolant Pipe Hose Line 04L121064T

Product currently unavailable

Part no. 5N0122157AM

Audi Q3 8U Water Pipe Hose Coolant Cooling Line 2.0 TDI Diesel 5N0122157AM

Product currently unavailable

Part no. 8K0805201

Audi A4 B8 A5 8T Radiator Support Mount Holder Left Right N/O/S 8K0805201

Product currently unavailable

Part no. 4M0819927CP

Audi Q7 4M Water Coolant Hose Tube Line Pipe 3.0 TDI Diesel Set 4M0819927CP

Product currently unavailable

Part no. 06H121492D

Audi A5 8T 2.0 TFSI Turbine Cooling Hose Pipe Hose Line 06H121492D

Product currently unavailable

Part no. 8R0121081AD

Audi Q5 8R 2.0 TDI Expansion Bottle Tank Radiator Hose Line Pipe 8R0121081AD

Product currently unavailable

Part no. 5N0121051H

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

Product currently unavailable

Part no. 8K1819371AC

Audi A4 B8 Water Coolant Hose Tube Pipe Line 2.0 TDI Diesel 8K1819350AC

Product currently unavailable

Part no. 8J0121073E

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

Product currently unavailable

Part no. 3C0122101FS

Volkswagen SEAT Skoda Audi Water Coolant Pipe Line Hose 3C0122101FS

Product currently unavailable

Part no. 8K1819373AC

Audi A4 B8 Engine Coolant Hose Tube Pipe Line S5000223

Product currently unavailable

Part no. 059103171EC

Audi A7 4G 3.0 TDI Quattro Engine Covering Spacer Plate 059103171EC

Product currently unavailable

Part no. 8E0121251AB

Audi A4 S4 B6 Coolant Radiator Engine Cooling Unit Radiator 8E0121251AB

Product currently unavailable

Part no. 4F0121107AN

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

Product currently unavailable

Part no. 05L122157CP

Audi A5 F5 Engine Coolant Pipe Hose Tube Line 2.0 TDI Diesel 05L122157CP

Product currently unavailable

Audi Q5 8R Engine Coolant Water Hose Pipe Line 2.0 Diesel 8R0819334AE

-2%

Part no. 8R0819334AE

Audi Q5 8R Engine Coolant Water Hose Pipe Line 2.0 Diesel 8R0819334AE

Product currently unavailable

Part no. 06L121081K

Audi Q5 FY 2.0 TFSI Water Cooling Line Vacuum Breather Pipe Hose 06L121081K

Product currently unavailable

Part no. 6R0122447K-1

Audi A1 8X Coolant Water Pipe Hose Line Engine Cooling 6R0122447K

Product currently unavailable

Part no. 04L121064C

Audi A3 8V Q3 8U Engine Water Coolant Pipe Cooling Hose Line 2.0 TDI 04L121064C

Product currently unavailable

Part no. 059121008G

Audi A7 4G A4 B9 A6 C7 Water Coolant Pump 059121008G

Product currently unavailable

Part no. 059121111BM

Audi A7 4G8 3.0 TDI CZVA Diesel Engine Coolant Thermostat 059121111CR

Product currently unavailable

Part no. 079121013N

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

Product currently unavailable

Part no. 80A121081ED

Audi Q5 FY Coolant Hose With Quick Release Coupling Engine Bay 80A121081ED

Product currently unavailable

Part no. 8K0121030K-1

Audi A4 B8 Water Hose Radiator Coolant Pipe Line 1.8 2.0 Petrol 8K0121030K

Product currently unavailable

Part no. 3Q0122101CG

VW Volkswagen Golf Mk8 Water Coolant Pipe Hose Line 2.0 TDI Diesel 3Q0122101CG

Product currently unavailable

Part no. 5Q0122051AL

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

Product currently unavailable

...

Showing 1387-1485 of 1822 products