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 A4 B8 2.0 TDI CNHC Water Coolant Hose Line Pipe 8K0819334BB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0121485AA

Audi A8 D4 3.0 TDI Diesel Engine Water Coolant Pipe Hose Line 4H0121485AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0121055L-2

Audi A4 B8 Water Hose Cooling Coolant Radiator Pipe Line Diesel 8K0121055L

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06D145778C

Audi A4 B7 2.0 TFSI BGB Oil Supply Feed Hose Line Pipe Tube 06D145778C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0121049AD-1

Skoda Octavia Mk3 Water Coolant Pipe Hose Line Petrol Engine 5Q0121049AD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 057121111B

Audi Q7 4L 4.2 TDI Diesel Engine Water Coolant Thermostat Housing 057121111B

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04L121064AE

Volkswagen Seat Skoda Audi 2.0 TDI Water Coolant Pipe Hose Line 04L121064AE

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 07K121115D

Audi RSQ3 8U Thermostat Housing Coolant Unit 2.5 TFSI Petrol 07K121115D

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E121083A

Audi A4 S4 B8 S5 8T 8F 3.0 TFSI Water Hose Coolant Pipe Line Tube 06E121083A

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0145832AH

Audi A3 8P 2.0 TDI Convertible Intercooler Air Pipe Hose Left N/S 1K0145832AH

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0121485BE

Audi A6 C7 A7 4G8 Water Radiator Coolant Pipe Hose Tube Line Diesel 4G0121485BE

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0121449Q

Audi A6 C7 3.0 TDI CLAA Water Coolant Pipe Hose Line Tube 4H0121449Q

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L121157AQ

Audi A4 B8 A5 8T 2.0 TDI Water Hose Cooling Radiator Pipe Line 03L121157AQ

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04L121157

Audi A4 B8 A6 C7 Water Coolant Pipe Hose Line Tube Right O/S 2.0 TDI 04L121157

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04L121065AJ

Volkswagen Seat Skoda Audi 2.0 TDI Water Coolant Pipe Hose Line 04L121065AJ

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6C0122109E

Audi A1 8X 1.6 TDI Diesel Engine Water Coolant Pipe Hose Line Tube 6C0122109E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121063J

Audi TT 8J Water Coolant Hose Pipe Line Tube 1K0121063J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122291BM

Audi A3 8P 2.0 TDI Water Hose Radiator Coolant Pipe Line 1K0122291BM

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E121546

Audi S4 B8 A4 B8 S5 8T Water Coolant Hose Pipe Line 3.0 TFSI 06E121546

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0121481AL

Audi A6 Avant A7 Sportback Water Coolant Hose Pipe 4G0121481AL

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04L121111H-1

Audi A4 B8 A5 F5 TT FV Thermostat Coolant Housing Valve 2.0 TDI 04L121111H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 079121678K

Audi S6 C7 S7 4G Engine Coolant Thermostat Resonator Valve 4.0 TFSI 079121678K

€146.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E121545

Audi S4 B8 A4 B8 S5 8T Water Coolant Hose Pipe Line 3.0 TFSI 06E121545

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L8121051G

Audi Q7 Engine Cooling Radiator Coolant Hose Pipe 3.0 TDI 7L8121051G

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04L121026AF

Audi Q2 GA Diesel Thermostat Coolant Regulator Connector Pipe Hose 04L121026AF

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959455K

Audi A5 S5 8T Engine Cooling Radiator Fan Shroud Panel 8K0959455K

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 80A145926BP

Audi Q5 FY Coolant Hose Tube Line Pipe 2.0 Diesel 80A145926BP

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 07K121055A

Audi RS3 8P RSQ3 8U Engine Cooling System Coolant Hose Pipe 2.5 TFSI 07K121055A

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03G145771Q

Audi A3 8P Diesel Engine Supply Feed Oil Hose Line Tube Pipe 03G145771Q

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06K145778K

Audi Q3 2.0 TFSI CULB Oil Pipe Line Tube Hose 06K145778K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04E121600AR

Audi A1 8X Skoda Octavia Mk3 Coolant Cooling Water Pump 1.0 TSI TFSI 04E121600AR

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0122051BD

Audi Q3 8u Engine Water Coolant Cooling Pipe Line 2.0 TFSI Petrol 5N0122051BD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0122101B

Audi A6 C7 3.0 TDI Diesel Radiator Upper Hose Line Pipe Left N/S 4G0122101B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 079121013

Audi S7 4G Water Pump Coolant Cooling Unit 079121013

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C0122073EG

Audi TT Mk2 8J Water Coolant Pipe Hose Line 2.0 TFSI 3C0122073EG

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0122055BD

Audi A4 B9 A5 F5 Water Coolant Radiator Pipe Hose Line 3.0 TDI 8W0122055BD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03N115389B-2

Volkswagen Audi Seat Skoda Oil Filter Housing Cover 1.6 TDI 03N115389B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0121207B-3

Audi A5 8T Engine Cooling Radiator Coolant Fan Air Flap Ring AD1261 993332N

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 079121010B-1

Audi S6 C7 S7 4G S8 D4 Water Coolant Pump Cover Lid 4.0 TFSI Petrol 079121010B

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122101JM-1

Audi TT Black E VW Golf GTI 5K Coolant Hose Pipe Line 2.0 Petrol 1K0122101JM

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0122101B

Water Hose Audi A4 B9 A5 F5 Cooling Coolant Radiator Pipe Line 8W0122101B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06K103495BL

Audi A3 8V A4 B9 Engine Oil Separator Breather Petrol 2.0 TFSI DNUE 06K103495BL

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0121403C

Audi RS6 C7 Expansion Overflow Coolant Reservoir Bottle Tank 4G0121403C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06K121075AS

VW Polo 6C GTI Audi S1 8X 1.8 2.0 TFSI Water Coolant Pipe Hose Line 06K121075S

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V0121109

Audi A3 RS3 8V 8Y Water Coolant Hose Pipe Hose Line 2.5 TFSI 8V0121109

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L0121276A-1

Audi Q7 4L VW Touareg 7L Upper Radiator Rubber Mount Bush Grommet X2 7L0121276A

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0121251Q

Audi A6 C6 2.0 TDI Engine Cooling Radiator For Manual Gearbox 4F0121251Q

€32.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. 1J0121407D

Audi TT 8N Coolant Expansion Header Tank Bottle Reservoir Cap 1J0121407D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0959455AD

Audi A6 C8 Engine Cooling Radiator Fan Shroud Motor Unit 8W0959455K

€104.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. 8K0121003P-2

Audi A4 B8 Q5 8R Engine Cooling Radiator Fan Shroud Coolant Unit 8K0121003P

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0121064H

Audi Q3 8U Volkswagen Tiguan 5N Coolant Hose Metal Pipe Radiator 5N0121064H

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0317021M

Audi A7 A6 4G Gearbox Oil Cooler 3.0 Diesel 4G0317021M Automatic Transmission

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0121109S

Audi A3 8V Water Coolant Engine Cooling Flange Pipe Hose Line 5Q0121109S

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0122101AE

Water Hose Audi A4 B8 A6 C7 2.0 TDI Cooling Radiator Pipe Line 4G0122101AE

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K1819376M

Audi A4 B8 2.0 TDI Diesel Engine CAHA Coolant Hose Heater Water Line 8K1819376M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 059906088A

Audi A5 8T 3.0 TDI CCWA Diesel Exhaust Gas Temperature Sensor 059906088A

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04L121071E

Audi A3 8V VW Golf Mk7 Thermostat Housing Coupling 2.0 TDI 04L121071E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 05L121011D

Audi A4 B9 Volkswagen Arteon 3H Engine Coolant Water Pump 2.0 TDI 05L121011D

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 420121232

Audi R8 42 Coolant Cooler Unit Bracket Mount Holder Support Right O/S 420121232

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06L121075S

Audi A4 B9 A5 F5 Coolant Pipe Engine Cooling Water Hose 2.0 TFSI 06L121075S

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0121207C-1

Audi S6 C7 S7 4G Engine Cooling Radiator Fan 4.0 TFSI 4H0121207C

€289.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0121070BR-1

Audi A3 8V 2.0 TFSI Water Hose Engine Coolant Cooling Pipe Line 5Q0121070BR

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0121403N

Audi A6 C6 Coolant Expansion Tank Reservoir Bottle Fluid Tank 4F0121403N

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06K115243R

Audi S1 8X A3 8Y Oil Pressure Control Valve 2.0 TFSI CWZA 06K115243R

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06A121065AP

Audi A3 8P Coolant Hose Water Pump Pipe Cooling Line 1.6 Petrol 06A121065AP

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 059145771AC

Audi A5 8T 3.0 TDI CCWA Turbo Oil Feed Pipe Line Hose Tube 059145771AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4E0907658

Audi Q7 4L A8 D3 Air Moisture Humidity Sensor Control Unit 4E0907658

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0122101AL

Audi Q3 8U Engine Coolant Hose Tube Line Pipe 2.0 TDI Quattro CFGC 5N0122101A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0121276A

Audi A8 4H D4 Coolant Radiator Support Mounting Rubber Set X2 4H0121276A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E121031D

Audi S4 B8 3.0 Petrol Coolant Pump Pulley Water Pump Wheel 06E121031D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4K0145910G

Audi A6 C8 Water Hose Coolant Cooling Pipe Line 4K0145910G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122101DK

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

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0121501AL

Audi S4 B9 3.0 Petrol Water Hose Cooling Coolant Pipe Line 8W0121501AL

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0819885B

Audi A5 S5 F5 Water Hose Cooling Coolant Radiator Pipe Line 3.0 TDI 8W0819885B

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 079121036D

Audi RS4 B8 Engine Cooling Coolant Water Hose Pipe Line 079121036D

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 079121055AC

Audi RS4 B8 Engine Cooling Coolant Hose Pipe Line Front Left N/S 079121055AC

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E121044L-1

Audi A4 S4 B8 S5 8T A6 C7 Coolant Pipe Hose Tube Line 06E121044L

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0121263

Audi RS6 RS7 Additional Water Coolant Radiator Support Carrier Mount 4G0121263

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122101JQ

Audi A3 8P VW Golf Mk6 2.0 TDI CFFB Coolant Water Hose Pipe Line 1K0122101JQ

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 079121081

Audi S7 4G 4.0 TFSI Coolant Hose Engine Water Pipe Front Upper 079121081

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 079121065BR

Audi RS4 B8 RS5 8T Engine Cooling Pipe Water Coolant Hose 4.2 Petrol 079121065BR

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06D121065L

Audi A4 B7 Water Coolant Pipe Hose Line 2.0 TFSI 06D121065L

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E121031E

Audi A4 S4 B8 Coolant Pump Pulley Water Pump Wheel 3.0 Petrol Engine 06E121031E

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2Q0121321A-1

SEAT Audi Volkswagen Skoda Water Coolant Expansion Tank Cap Cover 3C0121321

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0819374G

Audi A6 C7 A7 4G Water Coolant Pipe Hose Line 3.0 TDI 4G0819374G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E121005F

Coolant Water Pump Audi A4 B7 B8 S4 B8 Additional Pump 06E121005F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8R0121055H-1

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

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121058C

Audi A3 8P Volkswagen Golf Mk5 Seat Leon Coolant Hose Pipe 1K0121058C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0122073AC

Audi Q3 8U Water Hose Cooling Radiator Coolant Pipe Line 5N0122073AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0145925P

Audi A4 B9 A5 F5 Water Coolant Pipe Hose 2.0 TDI 8W0145925P

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0959455AE

Audi A5 8T A6 C7 A7 4G Radiator Fan Motor Right O/S 3.0 TDI 4H0959455AE

€156.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. 8W0121487Q

Audi A4 B9 A5 F5 Q5 FY Water Coolant Hose Pipe Line 3.0 TDI 8W0121487Q

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K1819376L

Audi A4 B8 8K A5 8T Engine Water Coolant Pipe Hose Line Diesel 8K1819376L

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 079121071CM

Audi RS6 C7 RS7 4G Engine Coolant Pipe Rear Left N/S 4.0 TFSI 079121071CM

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0121049M

Water Pipe Audi A4 B8 A5 8T 2.0 TFSI Coolant Hose Line 8K0121049M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0145920M

Audi A5 F5 Water Hose Cooling Radiator Coolant Pipe Line 2.0 TDI 8W0145920M

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 022121011

Audi A3 8P 3.2 BMJ Petrol Engine Water Coolant Pump 022121011

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8E0819376C

Audi RS4 B7 Engine Water Coolant Pipe Hose Line 4.2 V8 BNS 8E0819376C

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E121044L-2

Audi S5 8T A4 S4 B8 A6 C7 Water Coolant Pipe Hose Line 3.0 TFSI 06E121044L

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

...

Showing 298-396 of 1529 products