Keep your engine's cooling fan cycling on cue with the Standard Ignition Engine Cooling Fan Switch (TS-311), a coolant fan switch that installs as a direct-fit replacement on the 1990-1992 Volkswagen Corrado. As the built-in wax pellet heats with the coolant, it expands and trips a snap-action electrical contact, passing the signal along to the fan controller so the cooling fan is commanded on at the calibrated temperature.
Custom wax formulation: the wax is form-tuned to a specific temperature range and expands when heated to drive the switch.
Factory-calibrated set point: every unit is calibrated and tested to confirm switch actuation, making electrical contact at its specified lower-temperature set point.
Bimetallic contact arm: a formed bimetallic arm uses the differing expansion rates of two fused metals as a creep-action device for precise performance.
Built for the trade: robust design and high-grade materials meet the demands of today's service professional, backed by complete quality control from componentry to finished product.
If a failed coolant fan switch is the reason your fan isn't engaging, this replaces it — diagnose the cause before replacing. See the Buyer's Guide tab for engine-level fitment details.
Interchange: TFS628 · FS268 · 357919369F
This part cross-references / interchanges with the following part numbers:
What does this switch do?
It senses coolant temperature. As its wax pellet heats and expands, it trips a snap-action electrical contact and sends the signal to the fan controller so the cooling fan is commanded on at the calibrated set point.
Which vehicle does the TS-311 fit?
It is a direct-fit replacement for the 1990-1992 Volkswagen Corrado. Check the Buyer's Guide tab to confirm it matches your specific vehicle.
How does the switch actuate?
A formed bimetallic contact arm relies on the different expansion rates of two fused metals as a creep-action device, while the custom wax pellet expands with heat to trigger the snap-action contact.
Is the switch calibrated?
Yes. Every unit is calibrated and tested to confirm switch actuation, making electrical contact at its specified lower-temperature set point.
My cooling fan won't turn on — is this the fix?
A faulty coolant fan switch is one possible cause. If diagnosis confirms the switch has failed, this part replaces it, but verify the cause first since a fan can also fail from wiring, relay, or controller issues.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
