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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Volkswagen New Beetle Alternator Generator Wiring Harness Cable 5C0971230J

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7E0122051M

Volkswagen Transporter T5 T6 Water Coolant Pipe Hose Tube 2.0 TDI 7E0122051M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2H6819263

Volkswagen Amarok 2H Auxiliary Water Pump Coolant Unit 3.0 Diesel DDXE 2H6819263

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0965561G

Volkswagen Golf 1K 2.0 TFSI Additional Water Pump Engine Coolant Unit 1K0965561G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9065010103

Volkswagen VW Crafter Coolant Expansion Tank Balancing Tank A9065010103

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L121111R

Volkswagen Golf Caddy 1.6 TDI CAY Water Coolant Thermostat Housing 03L121111R

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. MB3G-8C351-PB

VW Volkswagen Amarok Mk2 Engine Coolant Pipe Hose Line Diesel MB3G-8C351-PB

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2N0122073H

Volkswagen Crafter Mk2 Water Coolant Pipe Hose Line 2.0 TDi Diesel 2N0122073H

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121070CM

Volkswagen Golf Mk6 Scirocco Mk3 Audi A3 8P Water Coolant Pipe 1K0121070CM

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6Q0122101AP-1

Skoda Fabia Mk1 6Y Water Hose Cooling Coolant Pipe Line 1.9 Diesel 6Q0122101AP

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L906088FC

VW Transporter T6 Camper T5 Exhaust Temperature Sensor Diesel 03L906088FC

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7H0121276C

VW Transporter T5 T6 Radiator Mount Carrier Bracket Left Right N/O/S 7H0121276C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L121131K

VW Transporter T5 2.0 TDI CAAA Sealing Flange Temperature Sender 03L121131K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 05E145140N

VW Volkswagen Golf 8 1.5 eTSI DFYA Turbo Oil Pipe Feed Hose 05E145140N

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03H121131A

VW Passat CC Water Coolant Pipe Hose Cooling Line Connection Flange 03H121131A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122109CM

Volkswagen Golf Mk6 Scirocco Mk3 Water Coolant Pipe Hose 1.6 TDI 1K0122109CM

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P0121065AC-1

Volkswagen Touareg 7P Preheater Pipe Hose Line 3.0 TDI 7P0121065AC

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03H121121C

VW Passat CC Touareg 7L Thermostat Cover Coolant Pump Regulator 03H121121C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P0819278B

VW Volkswagen Touareg 7P Coolant Pipe Hose Line 3.0 TDI Diesel Engine 7P0819278B

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 038906081B-1

Volkswagen Touran Audi A4 B7 A6 C6 Fuel Temperature Sensor 2.0 TDI 038906081B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5QF122051BB

Volkswagen Tiguan AX1 1.5 Petrol Engine Coolant Hose Line Tube Pipe 5QF122051BB

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03G906088D

Volkswagen Tiguan 5N Audi A3 8P Exhaust Gas Temperature Sensor 03G906088D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0121070AG

VW Scirocco Mk3 Golf 5g Jetta A6 Water Coolant Pipe Hose Line Tube 5Q0121070AG

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0965561B

Volkswagen Passat CC EOS Additional Water Coolant Pump 3.6 FSI 1K0965561B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7E0965551

VW Volkswagen Transporter T5 Coolant Water Pump Bracket Mount Holder 7E0965551

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03F919501B

Volkswagen Golf SV Jetta 16 Coolant Temperature Sender 1.5 TSI 03F919501B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3D0907543A

Volkswagen VW Touran 1T Temperature Sensor Air Conditioning Heater 3D0907543A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 022121011A

VW Passat CC Touareg 7L Phaeton GP2 Eos 1F Coolant Water Pump 3.6 FSI 022121011A

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P0815373

VW Volkswagen Touareg 7P Coolant Hose Pipe Line 3.0 TDI Diesel 7P0815373

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04L121011L

Volkswagen Tiguan Ad1 5N Coolant Water Pump 2.0 TDI Diesel CUAA 04L121011L

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P0815983

VW Volkswagen Touareg 7P Coolant Water Pipe Hose Line Diesel Engine 7P0815983

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7N0122101F

Volkswagen Sharan 7N Engine Cooling Water Pipes Hoses 1.4 TSI 7N0122101F

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06K121051P

Volkswagen Scirocco Mk3 Audi A3 8P Coolant Pipe Hose Line Tube 06K121051P

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L0122101E

Volkswagen Touareg 7L Engine Water Coolant Pipe Hose 3.2 V6 Petrol 7L0122051

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0122101CJ

Volkswagen Golf R Mk7 Coolant Hose Tube Quick Coupling 2.0 TFSI 5Q0122101CJ

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 059121071DK

Volkswagen Amarok 2H Engine Coolant Pipe Hose Tube 3.0 Diesel DDXE 059121071DK

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0122051AN

Volkswagen Golf Mk7 Audi A3 8V Coolant Hose Pipe 2.0 TSI TFSI 5Q0122051AN

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C0122447BJ

Volkswagen Golf Mk6 Water Coolant Pipe Hose Line 2.0 TDI Diesel 3C0122447BJ

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122157AN

VW Golf Mk5 V Mk6 VI Petrol Engine Water Coolant Pipe Hose Line 1K0122157AN

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5K0122051AA

VW Volkswagen Caddy Maxi 2K Engine Cooling Hose Tube Pipe Line 5K0122051AA

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6R0959455C

Radiator Fan VW Polo 6R Seat Ibiza 4 Engine CGPB 1.2 Blades Fan Motor 6R0959455C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1H0907543A

VW Volkswagen Golf GTI 1J Interior Temperature Sensor Control Unit 1H0907543A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122051HA-1

VW Volkswagen Golf 5 6 1.6 2.0 TDI Water Hose Coolant Pipe Line 1K0122051HA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6R0121109K

Seat Ibiza 6j Mk4 Radiator Coolant Water Hose Pipe Line 1.4 TSI 6R0121109K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03C133514BN

VW Volkswagen Touran 1T 1.4 TSI CAVC Connecting Hose Pipe Line Tube 03C133514BN

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121086AF

Audi A3 8P VW Golf Mk6 Coolant Hose Pipe Line Diesel 2.0 TDI 1K0121086AF

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06F122101A

VW Volkswagen Golf Mk6 VI Coolant Water Pipe Hose Line 06F122101A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122073ER

VW Golf Mk5 Audi A3 8P Water Hose Cooling Coolant Radiator Pipe Line 1K0122073ER

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06F121111F

VW Volkswagen Golf 5 2.0 TFSI BWA Coolant Thermostat Housing 06F121111F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122157KD

VW Golf Mk5 Audi A3 8P Radiator Water Coolant Pipe Hose 1K0122157KD

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7H0121407

VW Volkswagen Transporter T5 Coolant Expansion Overflow Tank Bottle 7H0121407C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6Q0122101AP

Skoda Fabia Mk1 6Y Water Hose Cooling Coolant Pipe Line 1.9 Diesel 6Q0122101AP

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03G121065AC

Volkswagen VW Caddy Coolant Hose Water Cooling Pipes 03G121065AC

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0122051EN-1

VW Golf Sportsvan Seat Leon Mk3 5F Water Coolant Pipe Hose 1.5 TSI 5Q0122051EN

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3Q0121407A

Volkswagen Tiguan AD1 Coolant Expansion Tank Bottle Reservoir 2.0 TDI 3Q0121407A

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3B0919506-1

Volkswagen Transporter T5 Radiator Fan Control Unit Module Relay 3B0919506

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 05E121111R

Volkswagen Golf SV Audi A3 8Y Coolant Water Pump 1.5 TSI 05E121111R

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6R0122101P

Volkswagen 6R Coolant Water Hose Pipe Line Radiator Cooler 6R0122101P

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03G121132B

Volkswagen VW Caddy Coolant Flange Water Pump Thermostat 03G121132B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06Q145735D

Audi A3 8Y VW Golf Mk8 2.0 TSI Turbocharger Oil Cooler Pipe Hose Line 06Q145735D

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7E0121086Q

Volkswagen Transporter T5 T6 Engine Coolant Hose Cooling Water Pipe 7E0121086Q

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5K0121064A

Volkswagen Passat B7 CC Water Coolant Pipe Hose 2.0 TDI CFGC 5K0121064A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03C121065F

Volkswagen VW Touran 1T Petrol Engine Coolant Pipe Hose Vent 03C121065F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03N122157E

VW Volkswagen Tiguan AD1 Water Coolant Pipe Hose Line 2.0 TDI Diesel 03N122157E

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121058BH

Volkswagen Touran 1T Oil Cooler Coolant Pipe Hose Tube 1.4 Petrol 1K0121058BH

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0121070F

Volkswagen Tiguan 5N Water Coolant Cooling Pipe Line 2.0 TDi Diesel 5N0121070F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3AA122051A

Volkswagen Passat B7 CC Water Coolant Pipe Hose 2.0 TDI CFGC 3AA122051A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121447BN

Volkswagen Golf Mk6 Audi A3 8P Water Coolant Pipe Hose 1.6 FSI BLF 1K0121447BN

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C0122051CS

Volkswagen Passat B6 Engine Coolant Hose Pipe Tube Line 2.0 TDI 3C0122051CS

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06L121111P

VW Golf Mk8 Audi S3 8V 2.0 TFSI DJHA Water Pump Coolant Regulator 06L121111P

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03G906262B

Volkswagen VW Passat B6 Exhaust Gas Temperature Sensor Wiring 03G906262B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6Q0121109BF

Skoda Fabia Mk1 6Y Water Hose Radiator Coolant Pipe Line 1.9 Diesel 6Q0121109BF

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121049CG-1

Volkswagen Golf Mk6 Jetta Mk5 Radiator Water Pipe Hose 1.4 TSI 1K0121049CG

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04L131850A

Volkswagen Passat B8 Water Cooling Coolant Pipe Pipe Hose 2.0 TDI 04L131850A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1J0906444

VW Volkswagen Caddy SB Engine Radiator Cooling Fan 2.0 Diesel UC101URL0A07

€146.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0965561J-1

VW Golf MK6 Audi A3 8P Auxiliary Water Pump Coolant Unit Cooling 1K0965561J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0121447C

VW Volkswagen Tiguan 5N Water Hose Coolant Cooling Tube Pipe Line 5N0121447C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0965561F-1

VW Volkswagen Sharan 7N Auxiliary Water Pump Coolant Heating Valve 1K0965561F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06H121010L

Audi A4 B8 A5 8T VW Scirocco Mk3 Engine Water Pump 2.0 TFSI Petrol 06H121010L

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L121011J-1

Volkswagen Transporter T5 2.0 TDi Engine CAAA Water Pump 03L121011J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5QF122157AJ

Audi Q3 F3 Engine Coolant Hose Line Tube 2.0 TDI 5QF122157AJ

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7N0819350B

Volkswagen VW Sharan 7N Water Hose Radiator Coolant Pipe Line 2.0 TDI 7N0819350B

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7LA121086D

Volkswagen Transporter T6 Water Coolant Pipe Hose Line 2.0 TDI 7LA121086D

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06Q121085B

VW Golf Mk8 Skoda Octavia Mk4 Audi S3 8Y 2.0 TSI Water Coolant Hose 06Q121085B

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7LA121096S

VW Volkswagen Transporter T6 Water Coolant Hose Pipe Line 2.0 TDI 7LA121096S

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121447S

Volkswagen VW Passat B6 Water Hose Radiator Coolant Pipe Line 1K0121447S

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06J121075B

Audi A3 8P VW Scirocco Mk3 Coolant Hose Water Pipe Line Tube Petrol 06J121075B

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7E0122051E-2

VW Volkswagen Transporter T5 Radiator Coolant Hose Water Pipe Line 7E0122051E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0121051T

Volkswagen Eos Audi A3 8P Coolant Water Pipe Hose Line Tube 1K0122051AP

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06F121133H

Volkswagen Golf Mk5 Audi TT 8J Water Thermostat Housing 2.0 TFSI 06F121133H

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2E0121096

VW Volkswagen Crafter 2E 2.0 Diesel Water Coolant Pipe Line Tube Hose 2E0121096

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03C121121B

Volkswagen Polo 6R Coolant Thermostat Housing Cover 03C121121B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03D121005

Mechanical Water Pump Volkswagen Polo 6R Engine Coolant Unit Pump 03D121005

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5WA122073H-1

Coolant Hose Skoda Superb Se Engine Coolant Water Tube Line Pipe 5WA122073H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2E0122096E

Volkswagen Crafter Coolant Hoses Water Cooling Pipe 2E0122096E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7N0121064L

VW Volkswagen Sharan 7N Breather Pipe Hose Line 2.0 TDI 7N0121064L

€32.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. 7N0122051S

Volkswagen Sharan 7N Water Pipe Hose Coolant Cooling Line 2.0 TDI 7N0122051S

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5WA122073H

Coolant Hose Volkswagen Golf CD1 Polo 1.0 TSI Water Tube Line Pipe 5WA122073H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0122109CF

Water Coolant Pipe Volkswagen Audi Skoda Seat 1.6 TDI Cooling LIne 1K0122109CF

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

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