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 A5 8T Coolant Water Hose Line Tube Pipe 2.0 TDI Diesel 8W0122101AL

€28.95

Part no. 4G0121049L

Audi A7 4G 3.0 TDI CDUD Water Radiator Coolant Pipe Hose Tube Line 4G0121049L

€23.95

Part no. 1J0121321B

Audi TT 8N Radiator Water Coolant Expansion Tank Cap Cover 1J0121321B

€23.95

Part no. 8V0121397A

Audi RSQ3 F3 Engine Water Coolant Hose Pipe Left N/S 2.5 TFSI 8V0121397A

€104.95

Part no. A8E0199455F

Audi RS4 B7 Engine Cooling System Guard Plate Cover Bracket Mount A8E0199455F

€23.95

Part no. 5Q0122101BL

Audi A3 8V 2.0 TDI Water Hose Radiator Coolant Pipe Line Diesel 5Q0122101BL

€23.95

Part no. 059121065BB

Audi A5 8T Engine Coolant Water Hose Pipe 3.0 TDI V6 059121065

€23.95

Part no. 8K0121049AF-1

Audi A4 B8 2.0 TDI Water Coolant Hose Tube Line Pipe 8K0121049AF

€23.95

Part no. 03L121093F

Audi A4 S4 8K A5 S5 8F Auxiliary Coolant Water Pump Bracket Mount 03L121093F

€42.95

Part no. 06J121075F-1

Audi TT 8J A3 8P VW Golf GTI 5K Sharan Coolant Hose Water Pipe Line 06J121075F

€23.95

Part no. 07K121057-1

Audi RS3 TTRS RSQ3 8U Coolant Hose Pipe 2.5 TFSI Cooling Line 07K121057

€23.95

Part no. 079121071CF-1

AUDI S5 8T Petrol 4.2 FSI V8 Coolant Hose Rear Engine Water Pipe 079121071CF

€56.95

Part no. 5C0965567A

Audi A3 8V Additional Water Pump 1.4 Petrol CXSA 5C0965567A

€23.95

Part no. 079121013P

Audi S5 8T Coolant Water Pump Thermostat Assembly 079121013P

€237.95

Part no. 8K0121049L

Audi A4 B8 Water Hose Radiator Coolant Pipe Line 2.0 TDI 8K0121049L

€23.95

Part no. 059121075FH

Audi A6 C8 Engine Cooling Coolant Pipe Hose Tube Line 3.0 TDI DDVB 059121075FH

€75.95

Part no. 5Q0121070AF

Audi A3 8V Water Hose Cooling Coolant Radiator Pipe Line 5Q0121070AF

€23.95

Part no. 4G0145919AC-1

Audi A6 C7 A7 4G Water Pipe Hose Engine Cooling Coolant Line 4G0145919AC

€23.95

Part no. 06L145778H

Audi A5 8T Oil Feed Hose Pipe Line 2.0 TFSI Petrol Engine 06L145778H

€23.95

Part no. 8V0121030B

Audi RS3 8V RSQ3 F3 Water Coolant Hose Pipe Line 2.5 TFSI 8V0121030B

€37.95

Part no. 06D121085C

Audi A4 B7 A6 C6 Water Coolant Hose Line Tube Pipe 2.0 TFSI BWE 06D121085C

€23.95

Part no. 5Q0122073R

Audi A3 8V Water Hose Coolant Pipe Line Tube 5Q0122073R

€23.95

Part no. 8N0121070B

Audi TT 8N Radiator Coolant Hose Pipe Tube Line 1.8 Petrol BAM 8N0121070B

€132.95

Part no. 06E121065N

Audi Q5 8R 3.0 TFSI Water Hose Cooling Coolant Pipe Line 06E121065N

€23.95

Part no. 5Q0121070AH

Audi A3 8V VW Golf Mk7 Water Coolant Pipe Hose Line Diesel 5Q0121070AH

€23.95

Part no. 06D121065J

Audi A4 B7 A6 C6 Coolant Hose Line Tube Pipe 2.0 TFSI 06D121065J

€23.95

Part no. 06K103495AG

Audi A3 8V Q3 8U Engine Oil Separator Breather Petrol 2.0 TFSI CULB 06K103495AG

€28.95

Part no. 5Q0121619D

Audi A3 8V Water Hose Cooling Coolant Radiator Pipe Line 5Q0121619D

€66.95

Part no. 06E121065Q

Audi A4 B8 A6 C7 A7 4G A8 D3 Coolant Flange Pipe Hose Line Tube 06E121065Q

€23.95

Part no. 2Q0122109E

Audi A1 GB Water Coolant Cooling Pipe Hose Line 1.0 TFSI Petrol 2Q0122109E

€23.95

Part no. 8K0121081BK

Audi S4 B8 A4 B8 S5 8T Radiator Coolant Hose Line Pipe 8K0121081BK

€23.95

Part no. 8K0121207A-4

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

€56.95

Part no. 1J0121407D

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

€23.95

Part no. 8K0819377C-1

Audi A5 8T Radiator Water Cooling Coolant Pipe Hose Line Diesel 8K0819377C

€28.95

Part no. 2Q0122101BP-1

Audi A1 Coolant Cooling Hose Pipe Line 1.0 TFSI Petrol 2Q0122101BP

€56.95

Part no. 5Q0959455AM-1

Audi S3 8V Radiator Fan Engine Motor Cooling 5Q0959455AM

€142.95

Part no. 2Q0122157B

Audi A1 GB Coolant Cooling Hose Pipe Line 1.0 TSI Petrol 2Q0122157B

€23.95

Part no. 83A121101A

Audi RSQ3 F3 Engine Coolant Hose Tube Line Pipe 2.5 TFSI QUATTRO DNWA 83A121101A

€23.95

Part no. 04L121113D

Audi A4 B9 Thermostat Housing Coolant Regulator 2.0 TDI DEUA 04L121113D

€70.95

Part no. 06M121137AH

Audi A4 B9 A5 F5 Water Coolant Pipe Hose Cooling Line 06M121137AH

€28.95

Part no. 5G0965561

Audi A3 8V 1.4 TFSI CXSA Additional Auxiliary Water Pump 5G0965561

€28.95

Part no. 06M121071E

Audi SQ5 FY 3.0 TFSI Water Hose Cooling Radiator Coolant Pipe Line 06M121071E

€28.95

Part no. 1K0121070AQ

Audi TT 8J 2.0 TFSI Water Hose Coolant Pipe Line 1K0121070AQ

€23.95

Part no. 1K0121251AT

Volkswagen Jetta Golf 1K Audi A3 S3 Engine Radiator Water Cooler 1K0121251AT

€42.95

Part no. 8K0121276A

Audi A4 B8 A5 8T Q5 8R Coolant Radiator Mount Holder Bracket Rubber 8K0121276A

€23.95

Part no. 8W0122291AK

Audi A4 B9 35 TFSI DMSB Petrol Water Coolant Hose Line Tube Pipe 8W0122291AK

€37.95

Part no. 8W0122448S

Audi A5 F5 Water Coolant Hose Line Pipe Tube 8W0122448S

€23.95

Part no. 04E121600BE

Audi A3 8V Seat Ateca Kh7 Coolant Pump D Water Pump 04E121600BE

€28.95

Part no. 079121102F

Audi S5 8T Engine Water Coolant Rubber Pipe Hose 4.2 FSI 079121102F

€23.95

Part no. 06L121085K

Audi A4 B8 A5 8T Water Coolant Pipe Hose 2.0 TFSI Petrol Engine 06L121085K

€23.95

Part no. 7L8121073A

Audi Q7 4L Engine Coolant Hose Tube Line Pipe 7L8121073A

€23.95

Part no. 04L122157BF

Audi A4 B8 2.0 TDI CNHC Diesel Engine Water Coolant Pipe Hose Line 04L122157BF

€23.95

Part no. 03L121132AC

Audi A4 B8 A5 8T 2.0 TDI Water Coolant Thermostat Housing 03L121132AC

€23.95

Part no. 5Q0122157CK

Audi A3 8V Water Hose Cooling Radiator Coolant Pipe Line 2.0 TDI 5Q0122157CK

€23.95

Part no. 4G0317818S

Audi A7 4G Oil Pipe Line Tube Hose Automatic Gearbox Transmission 4G0317818S

€23.95

Part no. 2Q0965567A

VW Golf Mk7 Transporter T6 Additional Water Coolant Pump 1.6 TDI 2Q0965567A

€23.95

Part no. 03L121065T

Audi A3 8P 2.0 TDI Hose Thermostat Coolant Pipe Line 03L121065T

€23.95

Part no. 4F0145738F

Audi A6 C6 3.0 TDI Diesel Turbo Charger Intercooler Pipe Hose Duct 4F0145738F

€23.95

Part no. 07K121063D

Audi RSQ3 8U RS3 8P Water Coolant Pipe Hose Line Tube Petrol Engine 07K121063F

€61.95

Part no. 8P0820741A

Audi RS3 8P Refrigerant Hose Cooling Radiator Coolant Pipe Line 8P0820741A

€47.95

Part no. 4H0121403G

Audi A8L 4H 3.0 TDI CDTA Coolant Overflow Reservoir Expansion Tank 4H0121403G

€28.95

Part no. 06E121065S

Audi A4 B8 A5 S5 8T Water Hose Cooling Coolant Pipe Line 3.0 TFSI 06E121065S

€23.95

Part no. 079121065BJ

Audi S5 8T Coolant Pipe Cooler Water Hose Left N/S 4.2 Petrol CAUA 079121065BJ

€32.95

Part no. 8K0121081BC

Audi A4 B8 Rear Coolant Water Breather Pipe Line Tube Hose 8K0121081BC

€23.95

Part no. 3C0121157AA

Audi A3 8P Engine Water Coolant Pipe Hose Line 1.9 TDI 3C0121157AA

€23.95

Part no. 1K0121063AA

Audi A3 8P VW Golf Mk6 Seat Altea Engine Coolant Hose 1.4 Petrol 1K0121063AA

€23.95

Part no. 03G906088AP

Audi A4 B7 Exhaust Gas Temperature Sensor Unit Diesel Engine 03G906088AP

€28.95

Part no. 059121399B

Audi A4 B8 A5 8T Q7 4L Coolant Pipe Hose Engine Cooling Line 3.0 TDI 059121399B

€23.95

Part no. 03L121111AC

Audi A3 8P 2.0 TDI Diesel Thermostat Coolant Housing 03L121111AC

€23.95

Part no. 8K0819334AD

Audi A4 B8 Heating Auxiliary Heater Pipe Hose Line 8K0819334AB

€23.95

Part no. 6R0121207F

Audi A1 8X Engine Cooling Radiator Fan Shroud Panel 6R0121207F

€218.95

Part no. 6R0122101DJ-1

Audi A1 S1 8X Water Coolant Pipe Hose Line 2.0 TFSI 6R0122101DJ

€32.95

Part no. 7L8122096A

Audi Q7 4L Water Coolant Pipe Hose Line 3.0 TDI 7L8122096A

€51.95

Part no. 4G0121447AL

Audi A7 4G Coolant Cooling Water Pipe Hose Line 3.0 TDI 4G0121447AL

€23.95

Part no. 8K0145879D

Audi A4 S4 8K A5 S5 8F 8T Additional Coolant Pump Bracket Mount 8K0145879D

€75.95

Part no. 8R0145910B

Audi Q5 8R 2.0 TDI Quattro Water Hose Coolant Pipe Line 8R0145910B

€28.95

Part no. 8E0965557A

Audi A4 S4 RS4 B7 Coolant Pump Bracket Mount Holder Support 8E0965557A

€23.95

Part no. 8X0805594B

Audi A1 8X Front Slam Panel Crossmember Reinforcement Support 8X0805594B

€237.95

Part no. 420260712B

Audi R8 42 Air Conditioning A/C Pipe Hose Cooling Line Tube 420260712B

€37.95

Part no. 4G0122101AJ

Water Hose Audi A6 C7 A7 4G Diesel Cooling Radiator Pipe Line 4G0122101AJ

€23.95

Part no. 8K0122055B-1

Audi A4 B8 Water Return Coolant Pipe Hose Line 2.0 TDI Diesel Engine 8K0122055B

€37.95

Part no. 06D121111G

Audi A4 B7 Coolant Regulator Thermostat Housing Pipe 2.0 TFSI BWE 06D121111G

€23.95

Part no. 04E121064E

Audi A3 8V Q3 8U VW Golf 5G Scirocco Mk3 Coolant Pipe Hose Tube Line 04E121064E

€23.95

Part no. 06K109121E

Audi S3 8Y 2.0 TFSI Volkswagen Golf 8 Petrol Water Pump Cover 06K109121E

€23.95

Part no. 8E0121058B

Audi RS4 B7 Water Coolant Cooling Pipe Hose Line 4.2 FSI Petrol 8E0121058B

€28.95

Part no. 5Q012210GJ

Audi A3 8V Water Hose Cooling Radiator Coolant Pipe Line 5Q012210GJ

€28.95

Part no. 05L965567A

Audi A5 F5 Electric Coolant Fluid Water Auxiliary Pump 05L965567A

€37.95

Part no. 057121057C

Audi RSQ3 F3 2.5 TFSI Quattro Water Coolant Pipe Hose Line 057121057C

€23.95

Part no. 06J121497J

Audi TT 8J Turbine Lubrication Inlet Oil Feed Line Pipe 06J121497J

€23.95

Part no. 8W0122101AA

Audi S4 B9 3.0 TFSI Petrol Coolant Water Hose Line Tube Pipe 8W0122101AA

€28.95

Part no. 07K121057A

Coolant Hose Audi RS3 8V TTRS 8S 2.5 TFSI Cooling Pipe Line 07K121057A

€23.95

Part no. 8K0121164E

Audi A4 B8 Water Pipe Hose Line Engine Cooling Coolant Unit Hose 8K0121164E

€23.95

Part no. 03L121157AP

Coolant Pipe Audi A4 B8 A5 8T 2.0 TDI Water Cooling Line 03L121157AP

€23.95

Part no. 6R0122109L

Audi S1 8X VW Polo GTI Mk5 Water Coolant Pipe Hose Line 2.0 TFSI 6R0122109L

€23.95

Part no. 06J121065F

Audi TT 8J A3 8P A4 8K Water Hose Cooling Coolant Radiator Pipe Line 06J121065F

€32.95

Part no. 079121085Q

Audi S6 C7 S7 4G Water Coolant Pipe Hose 4.0 TFSI Petrol 079121085Q

€23.95

Part no. 032121142

Audi A3 8P A4 B7 VW Golf MK5 Passat B6 Coolant Temperature Sensor Clip 032121142

€23.95

Part no. 059121103H

Audi SQ5 8R 3.0 TDI CGQB Coolant Hose Line Tube Pipe 059121103H

€23.95

Part no. 8K0907659A

Audi A4 B8 A5 8T Air Quality AUC Sensor 8K0907659A

€23.95

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