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 B7 1.9 TDI Water Coolant Pipe Hose Line Tube 038121065BH

Product currently unavailable

Part no. 8E0121284

Audi A4 B7 Radiator Air Duct Guide Right O/S 8E0121284AC

Product currently unavailable

Part no. 7L6122051AC

Audi Q7 4L Engine Coolant Hose Tube Line Pipe Quick Release Coupling 7L6122051AC

Product currently unavailable

Part no. 5Q0121251GQ

Audi Q2 GA A3 8V Coolant Radiator Engine Cooling Unit 1.4 Petrol 5Q0121251GQ

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. 07K121011N-1

Audi RS3 8Y Water Pump Coolant Cooling Pump Mechanical 2.5 TFSI 07K121011N

Product currently unavailable

Part no. 8W0121405E

Audi A4 B9 A5 F5 Expansion Tank Water Coolant Bottle Reservoir 8W0121405E

Product currently unavailable

Part no. 03C121469D

Audi A1 8X Turbo Water Coolant Hose Line Return Tube Pipe 03C121469D

Product currently unavailable

Part no. 03C121497C

Audi A1 8X Turbocharger Water Feed Hose Cooling Coolant Pipe Line 03C121497C

Product currently unavailable

Part no. 06H121497A

Audi A5 8T Turbine Cooling Hose Line Pipe 06H121497A

Product currently unavailable

Part no. 1K0122073DD

VW Volkswagen Eos 1F Water Hose Cooling Coolant Radiator Pipe Line 1K0122073DD

Product currently unavailable

Part no. 06A103212A

Audi A3 8P Water Hose Cooling Radiator Coolant Pipe Line 1.6 Petrol 06A103212A

Product currently unavailable

Part no. 8E0260707BK

Audi A4 B7 2.0 TDI Air Conditioning A/C Refrigerant Pipe Hose Line 8E0260707BK

Product currently unavailable

Part no. 06A121065CB

Audi A3 8P Coolant Hose Water Pipe Cooling Line 1.6 Petrol 06A121065CB

Product currently unavailable

Part no. 5Q0122073CE

Volkswagen Passat B8 Water Coolant Hose Tube Line Pipe 2.0 TDI 5Q0122073CE

Product currently unavailable

Part no. 5N0122101T

Audi Q3 8U Water Hose Cooling Coolant Radiator Pipe Line 5N0122101T

Product currently unavailable

Part no. 4G0122055H

Audi A7 4G8 3.0 TDI CRTE Radiator Coolant Water Pipe Hose Line Tube 4G0122055H

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. 8R0122101S

Audi Q5 8R Water Coolant Pipe Hose Line 8R0122101S

Product currently unavailable

Part no. 5Q0121251HA

Audi A3 S3 8V Engine Cooling Radiator Coolant Unit Petrol 5Q0121251HA

Product currently unavailable

Part no. 04L121071H

Audi A6 C7 Q5 8R Water Coolant Hose Pipe Tube Line 2.0 TDI DDDA 04L121071H

Product currently unavailable

Part no. 03L122157E

Audi A3 8P TT 8J VW Scirocco Mk3 Water Coolant Pipe Hose Line 2.0 TDI 03L122157E

Product currently unavailable

Part no. 4M0611931BF

Audi Q7 4M Volkswagen VW Touareg CR7 Coolant Hose Pipe 4M0611931BF

Product currently unavailable

Part no. 6X0973802A

Audi A6 C7 2.0 Diesel Temperature Sensor Wire Harness 6X0973802A

Product currently unavailable

Part no. 5WA122101AM

Audi S3 8Y 2.0 TFSI Coolant Water Hose Line Tube Pipe Connector 5WA122101AM

Product currently unavailable

Part no. 8K0317818DM

Audi A5 8T 3.0 TDI Oil Pipe Line Tube Hose Automatic Gearbox 8K0317818DM

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. 8S0121284B

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

Product currently unavailable

Part no. 4K0819377S

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

Product currently unavailable

Part no. 8R0121036A

Audi Q5 8R Heater Water Cooling Coolant Pipe Hose Line 8R0121036A

Product currently unavailable

Part no. 6R0959455G

Audi A1 8X 1.6 TDI CXMA Diesel Radiator Cooling Fan Shroud 6R0959455G

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. 07K117021G

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

Product currently unavailable

Part no. 8K0819334AM

Audi A4 B8 2.0 TFSI CDNC Petrol Engine Coolant Hose Line Tube 8K0819334AM

Product currently unavailable

Part no. 06F121492L-1

Audi TT 8J 2.0 TFSI Turbo Coolant Return Pipe Hose Line 06F121492L

Product currently unavailable

Part no. 8W0145670G

Audi A4 B9 A5 F5 Water Coolant Hose Pipe Line 2.0 TDI 8W0145930H 8W0145670G

Product currently unavailable

Part no. 07K121492H

Audi RS3 8Y Engine Cooling Coolant Return Water Hose Line 2.5 Petrol 07K121497H

Product currently unavailable

Part no. 5Q0121407M

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

Product currently unavailable

Part no. 4K0819337S

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

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. 03L121157-1

Audi A4 B8 A5 8T A6 C6 Water Coolant Pipe Hose Line 2.0 TDi Diesel 03L121157

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. 4F0145731S

Audi A6 C6 Turbo Coolant Hose Line Tube Pressure Pipe 2.0 Petrol 4F0145731S

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. 03L121093A

Audi A4 B8 A5 8T A6 C6 Auxiliary Coolant Water Pump 2.0 TDI Diesel 03L121093A

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. 4G0819377AA

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

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. 5Q0121251GN

Skoda Octavia Mk3 Audi A3 8V Coolant Radiator 1.8 2.0 TFSI Petrol 5Q0121251GN

Product currently unavailable

Part no. 8K1819373AC

Audi A4 B8 Engine Coolant Hose Tube Pipe Line S5000223

Product currently unavailable

Part no. 1K0122101FP

Audi A3 8P 1.6 TDI Water Hose Radiator Coolant Pipe Line 1K0122101FP

Product currently unavailable

Part no. 4M0121321J

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

Product currently unavailable

Part no. 06E121045J

Audi A4 B8 3.2 FSI Water Hose Radiator Coolant Pipe Line Tube 06E121045J

Product currently unavailable

Part no. 5Q0121113J

Audi Q3 F3 Coolant Hose Pipe Line 5Q0121113J

Product currently unavailable

Part no. 8E0121044B

Audi A4 B7 Water Hose Cooling Radiator Coolant Pipe Line 8E0121044B

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. 07L121053E

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

Product currently unavailable

Part no. 8K0965561A

Audi A4 B8 A5 8T 2.0 TFSI Water Pump Auxiliary Coolant Circulation 8K0965561A

Product currently unavailable

Part no. 5Q0122073BK

Audi Q3 8U Water Coolant Hose Tube Line Pipe 2.0 TDI Diesel 5Q0122073BK

Product currently unavailable

Part no. 8S0201801

Audi TT FV Petrol Activated Charcoal Tank Reservoir 8S0201801

Product currently unavailable

Part no. 8K0121081CG

Audi A4 B8 2.0 TDI Ventilation Breather Pipe Hose Line 8K0121081CG

Product currently unavailable

Part no. 059121065AT

Audi Q7 4L Water Hose Cooling Coolant Radiator Pipe Line 059121065AT

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. 059121511CT-1

Audi Q7 4M Q8 Mk2 Water Coolant Hose Line Tube Pipe 3.0 Diesel 059121511CT

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. 059121075BT

Audi Q7 4L 3.0 TDI BUG Diesel Engine Water Coolant Hoses Line Pipe 059121075BT

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. 021121031D

Audi TT 8J 3.2 V6 BUB Water Pump Pulley Water Wheel Guide 021121031D

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. 1K0959455FJ

Audi A3 8P Radiator Fan Engine Motor Cooling 1K0959455FJ

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. 06M121083J

Audi A4 S4 B9 A5 S5 F5 3.0 TFSI Water Coolant Pipe Hose Cooling Line 06M121083J

Product currently unavailable

Part no. 8P4121283B

Audi A3 8V Front Left N/S Radiator Air Duct Guide Bumper 8P4121283B

Product currently unavailable

Part no. 03L122157M

Audi A4 B8 2.0 TDI Water Hose Radiator Coolant Pipe Line 03L122157M

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. 8P4121284B

Audi A3 8V Front Right O/S Radiator Air Duct Guide Bumper 8P4121284B

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. 03L121065A

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

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. 1K0121207T-1

Audi A3 8P Engine Cooling Radiator Fan Twin Ring Shroud Petrol 1K0121207T

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. 1K0121205AB

Audi TT 8J Engine Cooling Radiator Fan Shroud Coolant Panel 1K0121205AQ

Product currently unavailable

Part no. 8K0819374

Audi A4 B8 2.0 TDI Diesel Water Pipe Engine Cooling Coolant Hose Line 8K0819374

Product currently unavailable

Part no. 04L122073B

Audi A3 8V 2.0 TDI Diesel Water Pipe Engine Cooling Coolant Hose Line 04L122073B

Product currently unavailable

Part no. 8K0121003AG-1

Audi A6 C7 Radiator Cooling Fan Shroud Housing 1.8 TFSI Petrol 8K0121003AG

Product currently unavailable

Part no. 8K0121055L

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

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. 7L0959455E

Audi Q7 4L 4.2 TDi BTR 4.2 FSI BAR Radiator Fan Blades Motor 7L0959455E

Product currently unavailable

Part no. 1K0959455FR

Audi S3 8P 2.0 TFSI CDLA Cooling Radiator Fan Shroud Left N/S 1K0959455FR

Product currently unavailable

Part no. 03L121157B

Audi A4 B8 A5 8T 2.0 TDI Water Hose Cooling Pipe Line 03L121157B

Product currently unavailable

Part no. 8K0122101G-1

Audi A4 B8 A5 8T Heater Water Coolant Pipe Hose Line 1.8 2.0 Petrol 8K0122101G

Product currently unavailable

Part no. 07K103495B

Oil Separator Audi RS3 8V TTRS 8S 2.5 TFSI DAZA Breather Valve 07K103495B

Product currently unavailable

Part no. 1K0121096R

Audi A4 B7 2.0 TDI Diesel Water Hose Cooling Coolant Pipe Line 1K0121096R

Product currently unavailable

Part no. 8K0959455G

Audi A4 B8 A5 8T Electric Motor Fan Engine Cooling Radiator 8K0959455G

Product currently unavailable

Part no. 1K0122447ED-1

Audi A3 8P 1.9 TDI BLS Diesel Coolant Water Hose Line Tube Pipe 1K0122447ED

Product currently unavailable

Part no. 5N0122051AT

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

Product currently unavailable

Part no. 07K121A01

Audi RS3 8V Water Coolant Pump Engine Cooling Unit 2.5 TFSI Petrol 07K121A01

Product currently unavailable

...

Showing 1288-1386 of 1407 products