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 A6 C7 Engine Coolant Pipe Hose Tube Line 2.0 Diesel CNHA 4G0122055D

€37.95

Part no. 8K0121405E

Audi A5 8T Expansion Tank Header Coolant Reservoir Bottle 8K0121405E

€23.95

Part no. 4M0819927C

Audi Q7 4M Water Coolant Hose Tube Line Pipe 3.0 TDI Diesel Set 4M0819927C

€80.95

Part no. 079121127E

Audi RS6 C7 RS7 4G Coolant Flange Adapter Cooling Pump Pipe Hose 4.0L 079121127E

€23.95

Part no. 06E131831S

Audi A4 B8 A5 8T A6 C7 A7 4G Engine Water Coolant Hose Pipe 3.0 TFSI 06E131831S

€23.95

Part no. 04L121070AB

Audi Q3 8U 2.0 TDI DFUA Diesel Water Coolant Hose Pipe Tube Line 04L121070AB

€23.95

Part no. 8X0121332

Audi A1 8X Radiator Air Duct Cover Panel Seal Right O/S 1.2 TFSI 8X0121332

€32.95

Part no. 7L8121065K

Audi Q7 4L 4.2 TDI Water Coolant Pipe Hose Line 7L8121070G

€23.95

Part no. 6C0122051P

Audi A1 8X Volkswagen Polo 6C Water Coolant Hose Pipe 1.0 TFSI 6C0122051P

€80.95

Part no. 06H121057E

Audi A5 8T Water Hose Cooling Coolant Radiator Pipe Line 06H121057E

€23.95

Part no. 8K0819334E

Audi A4 B8 Heat Exchanger Heater Pipe Hose Line 2.0 TDI 8K0819334E

€113.95

Part no. 7L8121058C

Audi Q7 4L 4.2 TDI Water Coolant Pipe Hose Line 7L8121058C

€23.95

Part no. 059121445L

Audi A6 C8 Engine Cooling Coolant Water Hose Line Pipe Tube 059121445L

€23.95

Part no. 5Q0122063

Audi A3 8V Water Coolant Pipe Radiator Hose Fluid Line 1.4 TSI Petrol 5Q0122063

€23.95

Part no. 4G0122293BF

Audi A6 RS6 C7 Radiator Coolant Hose Adapter Rear Left N/S 4G0122293BF

€80.95

Part no. 8W0145924P

Audi A4 B9 Water Hose Cooling Radiator Coolant Pipe Line 8W0145924P

€23.95

Part no. 4H0121485AA

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

€23.95

Part no. 1K0121063R

Audi A3 8P 1.4 TFSI CAXC Coolant Hose Line Tube Pipe 1K0121063R

€23.95

Part no. 6C0122101T

Audi A1 8X Volkswagen Polo 6C Engine Water Coolant Pipe Hose 1.0 TFSI 6C0122101T

€32.95

Part no. 06L133607G

Audi A6 C8 A7 4K Q7 4M VW Touareg Air Pump Breather Pipe Hose 2.0TFSI 06L133607G

€37.95

Part no. 8K0121052C

Audi A4 S4 B8 A5 8T Engine Water Coolant Pipe Hose Tube Line 8K0121052C

€23.95

Part no. 059121511CK

Audi A6 C8 Auxiliary Water Pump Engine Coolant Hose Line Pipe Tube 059121511CK

€94.95

Part no. 3Q0121058C

Audi Q3 F3 Water Hose Cooling Radiator Coolant Pipe Line 2.0 TDI 3Q0121058C

€23.95

Part no. 8K0121081BB

Audi A4 S4 B8 A5 8F Radiator Coolant Tank Hose Pipe Line Tube 8K0121081BB

€23.95

Part no. 1K0121096BQ

Volkswagen Golf Mk6 Water Hose Cooling Radiator Coolant Pipe Line 1K0121096BQ

€23.95

Part no. 8R0819334AP

Audi Q5 8R Water Coolant Pipe Hose Line Tube 8R0819334AP

€23.95

Part no. 8R0121049J

Audi Q5 8R 2.0 TDI Coolant Water Hose Cooling Unit Line Tube Pipe 8R0121049J

€28.95

Part no. 03C121070D

Audi A3 8P Water Pipe Hose Line Engine Cooling Coolant Unit Hose 03C121070D

€23.95

Part no. 8N0121088

Audi A3 8L TT TTS 8N Engine Coolant Water Hose Pipe Tube Line 8N0121088

€66.95

Part no. 057121057

Audi Q7 4L 4.2 TDI Water Coolant Pipe Hose Line 057121057

€23.95

Part no. 8J0121123

Audi RSQ3 8U Engine Water Coolant Pipe Hose Line 2.5 TFSI 8J0121123

€51.95

Part no. 8K0819374Q

Audi A5 8T Water Hose Cooling Radiator Coolant Pipe Line 8K0819374Q

€32.95

Part no. 4K0819552C

Audi A6 C8 Coolant Hose Water Line Pipe Tube 4K0819552C

€23.95

Part no. 8W0121400B-2

Audi A4 B9 A5 F5 Gearbox Oil Coolant Hose Pipe Line Tube 8W0121400B

€32.95

Part no. 04L121131A

Audi A4 B8 A5 8T Water Coolant Flange Pipe Hose Line 2.0 TDI 04L121131A

€23.95

Part no. 8E0959455H

Audi S4 B7 4.2 Petrol Engine Cooling Radiator Coolant Fan Right O/S 8E0959455H

€28.95

Part no. 4G0122109AA

Audi A6 C7 A7 4G Radiator Water Coolant Pipe Hose Line 3.0 TDI 4G0122109AA

€23.95

Part no. 04L965567A

Audi Q3 8U VW Scirocco Mk3 Golf Mk7 Auxiliary Water Pump 2.0 TDI 04L965567A

€37.95

Part no. 8K0145673AM

Audi A5 8T 2.0 CNCD Petrol Intercooler Pipe Hose Line Tube 8K0145673AM

€47.95

Part no. 8U0121036

Audi RS Q3 8U Engine Coolant Hose Pipe Hose Tube Line 8U0121036

€28.95

Part no. 8K0121081BJ

Audi A4 B8 2.0 TDI Radiator Water Coolant Pipe Hose Tube Line 8K0121081BJ

€23.95

Part no. 06H121601P-2

Audi A6 C8 A5 F5 Q7 4M Electric Additional Auxiliary Water Pump 06H121601P

€51.95

Part no. 8K0121081AT

Audi A4 B8 A5 8T Engine Breather Hose Tube Pipe Line 8K0121081AT

€23.95

Part no. 8W0122449CK

Audi A4 B9 A5 F5 Water Coolant Pipe Hose Line 3.0 TDI 8W0122449CK

€23.95

Part no. 1K0122101DK-2

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

€37.95

Part no. 6C0122049A

Volkswagen Polo 6C Audi A1 8X Radiator Coolant Hose Pipe 1.0 TFSI 6C0122049A

€28.95

Part no. 06E103217K

Audi A4 B7 Engine Breather Vent Hose Pipe Line 3.2 Petrol 06E103217K

€28.95

Part no. 8J0121051L

Audi A4 B8 TT 8J Radiator Coolant Hose Pipe Cooling Line 8J0121051L

€32.95

Part no. 057121597M

Audi Q7 4L 4.2 TDI Diesel Turbocharger Coolant Pipe Hose Right O/S 057121597M

€32.95

Part no. 8U0122101

Audi RS Q3 8U Coolant Hose Upper Front With Quick Release Coupling 8U0122101

€23.95

Part no. 5Q0121051B

Audi S3 8V VW Golf Mk7 Water Pipe Hose Engine Coolant Line 1.6 TDI 5Q0121051B

€23.95

Part no. 7L0965561

Volkswagen Touareg 7L Auxiliary Additional Water Pump Diesel Engine 7L0965561L

€23.95

Part no. 06E121044AB

Audi S4 B8 S5 8T Engine Coolant Pipe Water Hose Line 3.0 TFSI 06E121044AB

€23.95

Part no. 5Q0121251EC

Audi Q2 GA Coolant Radiator Engine Cooling Unit Radiator 1.6 TDI 5Q0121251EC

€75.95

Part no. 2Q0121407B

Audi A1 GB VW Polo Taigo Coolant Expansion Tank Bottle Reservoir 2Q0121407B

€23.95

Part no. 057121111B

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

€113.95

Part no. 1K0121096AQ

Audi A3 8P Engine Coolant Hose Tube Line Pipe 1.6 Petrol BSE 1K0121096AQ

€28.95

Part no. 8E0121207F

Audi A4 B7 Seat Exeo Radiator Engine Coolant Fan Shroud Housing 8E0121207F

€75.95

Part no. 6C0122157K

Audi A1 8X Volkswagen Polo 6R Water Coolant Pipe Hose 1.0 TFSI 6C0122157K

€37.95

Part no. 057906088A

Audi Q7 4L Exhaust Gas Temperature Sender Module Unit Plug Right O/S 057906088A

€23.95

Part no. 8U0121109

Audi Q3 RSQ3 8U Engine Water Coolant Hose Pipe Cooling Line 8U0121109

€23.95

Part no. 4G2819350K

Audi A7 4G Heater Radiator Hose Line Pipe 4G2819350K

€32.95

Part no. 7L0815985

Audi Q7 4L VW Touareg 7L Auxiliary Heater Coolant Hose Pipe 3.0 TDi 7L0815985

€23.95

Part no. 5Q0906457C

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

€23.95

Part no. 059121511G

Audi A5 8T Coolant Pipe Water Hose Cooling Line 2.7 TDI Diesel 059121511G

€23.95

Part no. 8K0121251T

Audi A4 B8 2.0 TDI Diesel Motor Engine Coolant Radiator Intercooler 8K0121251T

€42.95

Part no. 8J0121447D

Audi TT 8J 2.0 Petrol Engine Coolant Pipe Hose Line Tube 8J0121447D

€23.95

Part no. 8K0805201

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

€23.95

Part no. 07K121109A

Audi RS Q3 8U Engine Water Coolant Pipe Hose Line Tube 2.5 TFSI 07K121109A

€70.95

Part no. 8W0819370C

Audi A4 B9 Water Hose Cooling Coolant Radiator Pipe Line 2.0 Petrol 8W0819370C

€23.95

Part no. 1J0122291C

Audi A1 8X A3 8P 8V Skoda Octavia Water Coolant Pipe Hose Line 1J0122291C

€23.95

Part no. 06M121481L

Audi A4 S4 B9 3.0 TFSI Petrol Water Coolant Pipe Hose Line 06M121481L

€70.95

Part no. 038121011G

Audi A3 8P Volkswagen Eos 1F Water Pump Module Unit Mechanism 038121011G

€23.95

Part no. 8K0121207A

Audi A4 B8 Engine Cooling Radiator Double Coolant Fan Diesel 8K0121207A

€75.95

Part no. 05L122157CP

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

€37.95

Part no. 8K0819374Q-1

Audi A5 8T Water Hose Cooling Radiator Coolant Pipe Line 8K0819374Q

€32.95

Part no. 059121008J

Audi A5 8T 3.0 TDI CDUC Coolant Water Pump 059121008J

€32.95

Part no. 03L122157F

Audi A4 B8 2.0 TDI Water Hose Radiator Coolant Pipe Line 03L122157F

€23.95

Part no. 8N0121051E

Audi TT 8N S3 8L Water Hose Coolant Radiator Pipe Line 1.8 Petrol 8N0121051E

€23.95

Part no. 4K0121405N

Audi A6 C8 Coolant Expansion Reservoir D Cooling Agent Tank Radiator 4K0121403

€28.95

Part no. 5N0129637D

Audi A3 8P Q3 8U Air Filter Box Water Coolant Drain Pipe Hose Line 5N0129637D

€23.95

Part no. 2Q0121407

Audi A1 GB Coolant Header Expansion Tank Reservoir Bottle 2Q0121407

€23.95

Part no. 8K0819342J

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

€23.95

Part no. 06E121161BB

Audi A5 8T 3.0 TFSI V6 Engine Coolant Flange Housing Cover Trim 06E121161BB

€23.95

Part no. 059103688A

Audi Q7 4L VW Touareg 7P Engine Oil Return Pipe 3.0 TDI Diesel 059103688A

€28.95

Part no. 03L121132A

Audi A4 B8 2.0 TDI Diesel Thermostat Coolant Housing 03L121132A

€23.95

Part no. 5WA145838

Audi S3 8Y VW Golf Mk8 Water Cooling Coolant Radiator Pipe 2.0 TFSI 5WA145838

€23.95

Part no. 8J0121101C-1

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

€42.95

Part no. 06D121085

Audi A4 B7 2.0 TFSI BGB Turbo Water Coolant Hose Line Tube Pipe 06D121085

€23.95

Part no. 06H965561

Audi A5 8T 2.0 TFSI CDNB Additional Auxiliary Water Pump 06H965561

€23.95

Part no. 059121598L

Audi A7 4G Twin Turbo Coolant Feed Pipe Hose Line 3.0 TDI CGQB 059121598R

€42.95

Part no. 059121071BJ

Audi A5 8T Radiator Coolant Water Hose Line Tube Pipe Diesel Engine 059121071BJ

€23.95

Part no. 8K0122101G

Audi A5 8T Heater Water Cooling Coolant Pipe Hose Line 8K0122101G

€32.95

Part no. 7L8122096F

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

€37.95

Part no. 83A121102A

Audi RSQ3 F3 Engine Cooling Coolant Hose Tube Line Pipe 83A121102A

€23.95

Part no. 5Q0122058K

Audi S3 8V TT 8S Q3 Mk2 2.0 Petrol Engine Coolant Hose Line Tube Pipe 5Q0122058K

€37.95

Part no. 8E0121284

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

€23.95

Part no. 06D145778C

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

€23.95

Part no. 06H121601P-1

Audi A6 C8 A7 4G Electric Auxiliary Water Pump With Bracket Petrol 4G0820195E

€51.95

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