What is the construction and purpose of thermostats and housings in the cooling system?

Thermostats and housings in the cooling system are an assembly responsible for directing coolant flow between the engine and the radiator. A typical set consists of a thermostatic insert, a housing body, a gasket, and connection ports. This element is located in the engine compartment and is mounted in the location provided by the manufacturer for the given cooling circuit.

What is the construction and function of a thermostat gasket?

A thermostat gasket is a sealing element mounted between the housing and the contact surface in the cooling system. Its task is to maintain tightness during changes in temperature and operating pressure. In practice, one must pay attention to the gasket material, its profile, and compatibility with the specific body and OEM number.

How to choose a thermostat or housing for a specific car?

The safest way is to compare the OEM part number, interchangeable numbers, engine version, fuel type, and the layout of ports and mounts. In many cars, the presence of a temperature sensor and the type of seal also matter. When selecting, it is worth checking compatibility by VIN and comparing photos of the element with the removed part.

What symptoms indicate a problem with a thermostat or housing?

The most common symptoms are engine overheating, slow warm-up, fluctuations in temperature readings, and coolant leaks around the housing. Sometimes, weaker interior heating or traces of dried fluid near the ports also appear. Such symptoms should be assessed together with the condition of the hoses, gasket, and fluid level.

What does the proper installation of a thermostat and housing involve?

Installation involves cleaning the contact surfaces, installing the correct gasket, and securing the part without stressing the hoses. After replacement, the coolant must be topped up and the system bled according to the procedure for the specific car version. It is also worth checking for leaks after the engine has warmed up and verifying that the operating temperature returns to stable values.

Thermostats and housings in the cooling system

Q: What are thermostats and housings in the cooling system used for?

Thermostats and housings are used to maintain the proper operating temperature of the engine unit and to control the moment of fluid flow to the radiator. A functional thermostat accelerates reaching operating temperature, and a tight housing prevents fluid loss. Without these elements, the engine may run too cold or overheat, which affects fuel consumption, lubrication, and equipment durability.

At Global Parts, we offer a wide selection of original used car parts, including thermostats and housings for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Our thermostats and housings undergo quality control to ensure you receive a top-quality product.

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Land Rover Discovery 4 L319 Coolant Thermostat Housing 3.0 Diesel AH22-8K515-AA

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8575625-1

Thermostat Housing BMW F20 F21 LCI B37 Diesel Engine Cooling Unit 8575625

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 06L121111M

Audi Q5 FY Water Pump Thermostat Coolant Regulator 2.0 TFSI 06L121111M

€66.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 289355520R

Mercedes Vito W447 Engine Cooling Thermostat Water Coolant Pipe OM622 289355520R

€66.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2662030475

Engine Cooling Thermostat Mercedes W169 W245 M266 Petrol A2662030475

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 55241963

Fiat Doblo 2.0 Diesel Coolant Thermostat Line Tube Hose Pipe Housing 55241963

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. LR073372

Land Range Rover Sport L320 L494 Thermostat Housing Diesel 4H2Q-8592-BG

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 7588876

Mini Cooper S R56 LCI N18 Engine Cooling Thermostat With Housing 7588876

€37.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A6112000615

Mercedes-Benz C E W203 W210 OM611 OM612 Coolant Thermostat Housing A6112000615

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 82009543288

Nissan Qashqai Thermostat Housing Cover 1.5 DCi 82009543288

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 03D121026F

VW Volkswagen Fox 5Z 1.2 CHFB Petrol Water Pipe Thermostat Housing 03D121026F

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A6512002800

Mercedes W204 Diesel OM651 Engine Coolant Thermostat Temp Sensor A6512002800

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 05L121111Q

Audi Q2 GA 3.0 TDI DTTC Diesel Engine Coolant Thermostat Housing 05L121111Q

€75.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 06F121111H

Audi A3 S3 8P 2.0 TFSI Coolant Thermostat Housing Unit 06F121111H

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A6462001215

Mercedes Sprinter W906 Coolant Thermostat Housing Cooling Unit A6462001215

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 04L121026Q

Audi TT FV A3 8V Water Pump Thermostat Housing Pipe Connector 04L121026Q

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 55206391

Opel Combo Corsa 1.3 CDTi Diesel Thermostat Coolant Unit Housing 55206391

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 04L121111H

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

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 04L121111-1

Volkswagen Tiguan 5N Thermostat Coolant Housing Valve 2.0 TDI Diesel 04L121111

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8631943-6

BMW X1 F48 Mini F56 Petrol Thermostat Housing Part F-610472.06-0091

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8200978549

Renault Master III Opel Movano B 2.3 DCI Thermostat Housing 8200978549

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 038121132G

Audi Seat Skoda VW Golf MKV Coolant Flange Thermostat Housing Flange 038121132G

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 04L121111A

Volkswagen Audi Seat Skoda Coolant Thermostat Housing Pipe 2.0 TDI 04L121111A

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 07K121111C

Audi RS3 8V Engine Coolant Thermostat Housing 2.5 TFSI DAZA 07K121111C

€332.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. HPLA-8575-AB

Range Rover Evoque L538 Thermostat Housing Cover 3.0 Diesel HPLA-8575-AB

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8058643

BMW X3M F97 X4M F98 Alternator Generator Wiring Harness Cable 8058643

€32.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8472105

Mini F54 F55 F56 F60 B47 Thermostat Housing Engine Cooling 8472105

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2812030161

Smart A453 Thermostat Flange Housing M281 Petrol A2812030161 110603999R

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2722000415

Mercedes W204 W209 M272 Engine Coolant Thermostat Cooling Housing A2722000115

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8631943-3

BMW X1 F48 Mini F56 Petrol Thermostat Actuator F-610472.07-0900

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 03L121132

Audi A3 8P 2.0 TDI CBAB Coolant Thermostat Housing Flange 03L121132DE

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A1192011530

Mercedes C140 CL420 M119 Water Coolant Thermostat Housing Cover A1192011530

€132.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 6C1Q-8A586-BD

Ford Transit Mk7 TDCi Thermostat Coolant Housing Diesel 6C1Q-8A586-AC

€32.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8631943-2

BMW X1 F48 Mini F56 Petrol Thermostat Housing 8631943

€37.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 170741R

Mercedes W415 109CDI Diesel Engine Cooling Thermostat Housing 170741R

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8576289

Thermostat BMW G20 G21 G30 G31 B57 Water Coolant Thermostat Housing 7552067

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 8619408

Connector Water Pipe BMW F20 F30 LCI M140i 340i B58 Coolant Hose Line 8619408

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2722000515

Mercedes W164 W212 C216 W221 W906 Thermostat Petrol Engine A2722000515

€28.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 06E121111AD

Porsche Cayenne S 92A Thermostat Housing Assembly 3.0 TFSI 06E121111AD

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 06F121111G

VW Eos 1f Audi A3 8P Thermostat Housing Bracket Cover 2.0 FSI 06F121111G

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. 06A121121C

Audi Seat Skoda VW Golf MKV Coolant Flange Thermostat Housing Flange 06A121121C

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A2722000015

Thermostat Mercedes W211 Petrol Engine M272 Coolant Thermostat A2722000015

€23.95

Free delivery: Sep 10 – 11

If paid before 14:00

Part no. A6512001056

Thermostat Housing Mercedes W204 W207 W212 OM651 Coolant Unit Cover A6512001056

Product currently unavailable

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BMW E60 E61 E63 E64 Air Conditioning Heater Water Valve 6931708 6908294

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Part no. 7549476-1

Thermostat BMW E60 E61 E63 E65 E81 E87 E90 E91 E93 Water Pump 7549476

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Mercedes W204 W212 Coolant Thermostat Cooling Unit OM651 Diesel A6512001715

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Mercedes W204 Engine Coolant Water Pump Pipe Line OM651 Diesel A6512001651

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Part no. A6512001500

Mercedes Sprinter W906 OM651 Diesel Coolant Thermostat Cooling Unit A6512001500

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Part no. A6462030031

Coolant Pump Stub Mercedes Vito W639 Water Pump OM646 Diesel A6462030031

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Part no. 5N0971349BA

Volkswagen Sharan 7N Alternator Generator Wiring Harness Cable 5N0971349BA

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BMW E82 E90 E91 E92 135i 335i N54 Engine Coolant Thermostat Housing 7573212

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Part no. 04B121111C

Volkswagen Polo Mk5 Coolant Regulator Thermostat Housing Pipe 1.4 TDI 04B121111C

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Part no. 7536655

BMW E60 E61 E63 E81 E87 E90 E91 E93 Petrol Thermostat Housing Unit 7536655

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Part no. 7502779

BMW 5 6 7 X5 Series E53 E60 E61 E63 E64 E65 E70 F01 F10 F11 Thermostat 7502779

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Part no. 1872633

Ford B-Max C-Max Fiesta Mk7 Focus Thermostat Housing Engine Coolant CM5G9K478GA

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Coolant Thermostat Mini Cooper S R56 LCI N18 Engine Cooling Housing 7588876

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Renault Trafic II Opel Vivaro A 2.0 DCI Thermostat Coolant Housing 8200907243

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Mercedes W213 W222 OM656 Diesel Water Coolant Thermostat Housing A6562000015

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BMW E39 E46 E60 E65 E53 E83 E36 Coolant Thermostat Housing 1437040

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Thermostat BMW E46 E83 E87 E90 Coolant Unit Water Petrol N46 7510959

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BMW F10 F30 F32 N57N 330d 430d 530d Diesel Thermostat Housing 8516206

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Thermostat BMW E60 E61 E63 E65 E87 E90 E91 E93 N52 Water Pump Unit 7549476

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Thermostat Housing Mercedes W202 W203 W210 Petrol M111 Coolant Tube A1112030573

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Mercedes W213 W447 OM654 Diesel Coolant Thermostat Housing Unit A6542000115

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Mercedes W169 W245 M266 Coolant Thermostat Housing Cooling Unit A2662030575

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BMW X5 E39 E46 E53 Diesel M57 Engine Thermostat Housing 2354056

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Mercedes W204 Diesel OM651 Engine Coolant Thermostat Temp Sensor A6512002800

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Mercedes W212 Diesel OM651 Coolant Pipe Fuel Filter Bracket A6512001956

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Thermostat Water Pump BMW X5 E70 3.0si N52N Petrol Engine Cooling Unit 7550172

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Ford Transit Mk7 2.2L Diesel Thermostat Housing 6C108A586BD

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BMW Z4 E85 Engine Cooling Radiator Fan Shroud 400W 7519704 6925702

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Mercedes W177 W247 M260 Petrol AMG Thermostat Coolant Housing A2602002600

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Volkswagen Golf Mk5 Audi A3 8P Thermostat Housing 1.6 FSI BLF 03C121111H

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BMW E39 E46 Diesel Thermostat Coolant Housing EGR Valve Cooler 2247723

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Mercedes X164 OM629 Thermostat A6292000315

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Honda Jazz EGR Passage Unit Petrol Engine Exhaust Gas Connector 18711-PWA-000

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VW Volkswagen Touareg 7L Porsche Cayenne 9PA Thermostat Oil Cooler Radiator

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Thermostat BMW X1 E84 Petrol N46N Water Coolant Thermostat Housing 7552067

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VW Polo Mk4 9N Seat 1.4 TDI BMS Coolant Flange Thermostat Housing 045121121A

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Part no. 06A121133AL

Audi A3 8P 1.6 MPI BSE Petrol Coolant Thermostat Housing Sensor 06A121133AL

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BMW F20 F21 F30 LCI Connector Engine M140i 340i B58 8629123

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BMW Z4 E85 E86 1 Engine Cooling Radiator Fan Shroud 400W 7519704 6925702

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Ford Mondeo Mk4 S-Max Galaxy Thermostat Water Hose Pipe 2.0 TDCi 1475897

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BMW F20 F21 F30 LCI Petrol B58 M140i 340i Electric Thermostat Module 7642854

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Mercedes W212 W221 W204 Thermostat Coolant Housing Cooling Pipe A2762000515

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Audi Seat Skoda Volkswagen 1.2 Petrol Thermostat Housing 03F121111A

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Renault Trafic III Opel Vivaro B 1.6 DCi Thermostat Coolant Housing 110615482R

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Mercedes X253 OM651 Coolant Thermostat Housing Unit Diesel A6512001300

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BMW X1 F48 Mini F56 Petrol Thermostat Housing Coolant Connector F-610472.07-0081

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Thermostat BMW G20 G21 G30 G31 B57 Water Coolant Thermostat Housing 8576288

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Citroen Relay 35L Thermostat Housing 9827379280

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Honda Civic Petrol Coolant Thermostat Pipe Hose Cooling Line 19504-PLC-000

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Audi A5 8T Thermostat Coolant Housing Pump Unit 2.0 TFSI CNCD Petrol 06L121111G

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BMW E36 316i 318i Petrol M43 Thermostat Water Coolant Heat Management 1739755

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Thermostat Mercedes W205 X253 W212 Petrol M274 Coolant Thermostat A2742000615

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Mercedes W169 W245 OM640 Coolant Thermostat Housing Cooling Unit A6402000715

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Mercedes-Benz Vito W639 Diesel OM646 Coolant Water Thermostat A6112000715

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Volkswagen Polo 6N Water Coolant Thermostat Housing 032121111N

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Audi A3 S3 8V Water Pump Thermostat Coolant Regulator 2.0 TFSI 06L121111M

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