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Radiator fan switch for automobile

Spare: Coolant fan switch, Radiator fan temperature switch original

Information - Radiator fan temperature switch

Fan switch sensor: replacement and selection

When and why a fan switch sensor needs replacement

The fan switch sensor has no specified lifetime limit. Most often replacement is performed after contacts oxidation.

Ingress of water in the engine compartment can be the cause of sensor defects. Influence of moisture affects contacts condition negatively.

Part defects can be indicated by unprompted activation of the fan when the ignition is turned on. Moreover, the fan stops switching on if the sensor is broken. Due to this temperature of the cooling liquid increases leading to engine overheating. Readings of a corresponding dashboard indicator show this.

It is recommended to visit a service station for part replacement. Cooling liquid should be drained before demounting of the radiator fan switch. In order to do this safely, you need a special coolant exchanger machine. Also, wires which supply electric current to the part need be to disconnected before servicing. A seal, which is often sold in a kit should be installed together with the sensor.

How to select a fan switch sensor

According to operation principle sensors are divided into three main types. A reservoir filled with wax is a basic element of the first type. It expands when heated and moves a pusher, which in turn activates the fan. The working element of devices of the second type is a bimetallic plate. It changes its shape when heated, which leads to closing a contact and, as a result, to activation of the fan. Electronic devices with a thermistor belong to the third type. Their operating principle is based on changes in thermistor electric resistance caused by changes in temperature. This is monitored by an electronic control module, which sends corresponding signals to the fan, turning it on or off.

Fan switch sensors for various car brands are produced by such manufacturers as Metzger, Vemo, Meyle, Facet. A required unit is selected in accordance with the car brand, model, production year as well as engine specifications and type of the fan installed. Pay attention that a certain temperature of sensor activation is specified for each car.

Size and pitch of the thread, quantity of connectors are important for proper installation of the part. Moreover, sensors can vary by mounting location. Often the part is mounted on the cylinder block, however, in some cars it is fastened in the lower part of a radiator.

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Radiator fan switch at low cost: Top Spares

Temperature Switch, radiator fan (RIDEX, 1103T0003)
-15%
original Temperature Switch, radiator fan RIDEX 1103T0003
Article №: 1103T0003
RIDEX Temperature Switch, radiator fan 1103T0003
£ 8,49**
£ 7,22
incl. 20% VAT, excl. delivery costs
  • Outer thread [mm]: M22 x 1,5
  • Number of connectors: 3
  • Supplementary Article/Info 2: with seal ring
  • Temperature range from [°C]: 87
  • Condition: New
Details
Over 100 items in stock
Temperature Switch, radiator fan (CALORSTAT by Vernet, TS6840)
-15%
original Temperature Switch, radiator fan CALORSTAT by Vernet TS6840
Article №: TS6840
CALORSTAT by Vernet Temperature Switch, radiator fan TS6840
£ 7,49**
£ 6,37
incl. 20% VAT, excl. delivery costs
  • Shut-off Point [°C]: 79
  • Thread Size: M22x1.5
  • Technical Information Number: Circuit N.O.
  • Condition: New
Details
Over 100 items in stock
Temperature Switch, radiator fan (ERA, 330273)
-15%
original Temperature Switch, radiator fan ERA 330273
Article №: 330273
ERA Temperature Switch, radiator fan 330273
£ 10,99**
£ 9,34
incl. 20% VAT, excl. delivery costs
  • Spanner Size: 29
  • Connecting thread: M22 x 1,5
  • Number of connectors: 2
  • Operating temperature from [°C]: 92
  • Operating temperature to [°C]: 87
  • Condition: New
Details
Over 100 items in stock
Relay, radiator fan castor (VEMO, V15-71-0002)
-15%
original Relay, radiator fan castor VEMO V15-71-0002
Article №: V15-71-0002
VEMO Relay, radiator fan castor V15-71-0002
£ 10,99**
£ 9,34
incl. 20% VAT, excl. delivery costs
  • Voltage [V]: 12
  • Current Strength [A]: 40
  • Relay function: Clamp 87, Terminal 30
  • Number of connectors: 4
  • Weight [kg]: 0,027
  • Product line: Original Quality
  • Packaging width [cm]: 2,62
  • Packaging height [cm]: 2,497
  • Packaging Depth [cm]: 2,62
  • Condition: New
Details
Over 100 items in stock
Temperature Switch, radiator fan 3-pin connector (TOPRAN, 109 772)
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original Temperature Switch, radiator fan TOPRAN 109 772
Article №: 109 772
TOPRAN Temperature Switch, radiator fan 109 772
£ 8,99**
£ 7,64
incl. 20% VAT, excl. delivery costs
  • Thread Size: M 22 x 1,5
  • Number of Poles: 3
  • Number of switch stages: 2
  • Switch-on point [°C]: 95, 102
  • Shut-off Point [°C]: 84, 91
  • Connector Shape: triangular
  • Condition: New
Details
Over 100 items in stock
Relay, radiator fan castor (VIKA, 99190019901)
-15%
original Relay, radiator fan castor VIKA 99190019901
Article №: 99190019901
VIKA Relay, radiator fan castor 99190019901
£ 21,49**
£ 18,27
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  • Weight [kg]: 0,18
  • Number of connectors: 8
  • Required quantity: 1
  • Condition: New
Details
Over 100 items in stock
Temperature Switch, radiator fan Original VEMO Quality, with seal, 2-pin connector (VEMO, V15-99-1956-1)
-15%
original Temperature Switch, radiator fan VEMO V15-99-1956-1
Article №: V15-99-1956-1
VEMO Temperature Switch, radiator fan V15-99-1956-1
£ 10,99**
£ 9,34
incl. 20% VAT, excl. delivery costs
  • Thread Size: M22x1,5
  • Spanner Size: 29
  • Supplementary Article/Supplementary Info: with seal
  • Number of Poles: 2
  • Colour Coding: White
  • Switch point from [°C]: 92
  • Switch point to [°C]: 87
  • Weight [kg]: 0,057
  • Packaging width [cm]: 5,8
  • Packaging height [cm]: 3,3
  • Packaging Depth [cm]: 3
  • Supplementary Info: Original VEMO Quality
  • Condition: New
Details
Over 100 items in stock
Temperature Switch, radiator fan 2-pin connector (TOPRAN, 720 170)
-15%
original Temperature Switch, radiator fan TOPRAN 720 170
Article №: 720 170
TOPRAN Temperature Switch, radiator fan 720 170
£ 10,99**
£ 9,34
incl. 20% VAT, excl. delivery costs
  • Thread Size: M 22 x 1,5
  • Number of Poles: 2
  • Switch-on point [°C]: 97
  • Shut-off Point [°C]: 92
  • Spanner Size: 29
  • Connector Shape: Rectangular
  • Supplementary Article/Info 2: with seal ring
  • Condition: New
Details
Over 100 items in stock
Temperature Switch, radiator fan (CALORSTAT by Vernet, TS1772)
-15%
original Temperature Switch, radiator fan CALORSTAT by Vernet TS1772
Article №: TS1772
CALORSTAT by Vernet Temperature Switch, radiator fan TS1772
£ 12,49**
£ 10,62
incl. 20% VAT, excl. delivery costs
  • Shut-off Point [°C]: 88, 92
  • Thread Size: M22x1.5
  • Technical Information Number: Circuit N.O.
  • Condition: New
Details
Over 100 items in stock
Relay, radiator fan castor (VIKA, 99510019401)
-15%
Article №: 99510019401
VIKA Relay, radiator fan castor 99510019401
£ 13,49**
£ 11,47
incl. 20% VAT, excl. delivery costs
Details
Over 100 items in stock
Temperature Switch, radiator fan (CALORSTAT by Vernet, TS1151)
-15%
original Temperature Switch, radiator fan CALORSTAT by Vernet TS1151
Article №: TS1151
CALORSTAT by Vernet Temperature Switch, radiator fan TS1151
£ 4,99**
£ 4,24
incl. 20% VAT, excl. delivery costs
  • Shut-off Point [°C]: 82
  • Thread Size: M22x1.5
  • Technical Information Number: Circuit N.O.
  • Condition: New
Details
Over 100 items in stock
Relay, radiator fan castor (FEBI BILSTEIN, 26141)
-15%
original Relay, radiator fan castor FEBI BILSTEIN 26141
Article №: 26141
FEBI BILSTEIN Relay, radiator fan castor 26141
£ 38,99**
£ 33,14
incl. 20% VAT, excl. delivery costs
  • Number of connectors: 18
  • Weight [kg]: 0,25
  • Condition: New
Details
Over 100 items in stock
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