FAE 37400 Radiator Fan Thermoswitch

Compatible with AUDI 100 C2 Sedans (431, 433, 434) , AUDI 100 C3 Sedans (443, 444) , AUDI 100 C3 Avant (445, 446) Show more info
Ensures your radiator fan operates at the optimal temperature. Maintains engine cooling efficiency.
5.14 EUR
inc. VAT 21%
In stock 16
Delivery 1 day (13.05.2026)
PN 37400
Make FAE
EAN 8435050606063

The FAE 37400 Radiator Fan Thermoswitch is a critical component for maintaining your vehicle's engine temperature. It is designed to activate the radiator fan at a specific temperature, preventing overheating and ensuring optimal engine performance. This thermoswitch plays a vital role in the cooling system by monitoring the coolant temperature. When the temperature reaches a predetermined level, it sends a signal to turn on the radiator fan, which then draws air through the radiator to dissipate heat. Once the coolant temperature drops, the switch deactivates the fan, conserving energy and reducing noise. Proper functioning of the radiator fan thermoswitch is essential for preventing engine damage caused by overheating. A faulty switch can lead to the fan not engaging when needed, or running constantly, both of which can have negative consequences for your engine and fuel efficiency.

  • Direct fit for easy installation
  • Reliable temperature activation
  • Helps prevent engine overheating
  • Supports optimal engine performance
  • Durable construction for longevity
  • Essential for cooling system function
Switching point from [°C]
98
Switching point up to [°C]
93
  • AUDI
    • 100 C2 Sedans (431, 433, 434)
      • 1.6 (63kW/85PS)
      • 1.9 (74kW/100PS)
      • 2.0 (85kW/115PS)
      • 2.1 (85kW/115PS)
      • 2.1 (100kW/136PS)
      • 2.0 D (51kW/70PS)
    • 100 C3 Sedans (443, 444)
      • 1.8 (65kW/88PS)
      • 1.8 Cat (66kW/90PS)
      • 1.9 (74kW/100PS)
      • 2.0 (83kW/113PS)
      • 2.1 (100kW/136PS)
      • 2.2 (85kW/115PS)
      • 2.2 Turbo (121kW/165PS)
      • 2.3 E (100kW/136PS)
      • 2.0 D (51kW/70PS)
      • 2.0 D Turbo (64kW/87PS)
      • 1.8 quattro (65kW/88PS)
      • 1.8 Cat quattro (66kW/90PS)
      • 2.2 quattro (101kW/137PS)
      • 2.2 E Turbo quattro (121kW/165PS)
      • 1.8 (55kW/75PS)
      • 2.2 E quattro (88kW/120PS)
      • 1.8 (66kW/90PS)
      • 1.8 quattro (66kW/90PS)
      • 2.0 (85kW/115PS)
      • 2.2 (79kW/107PS)
    • 100 C3 Avant (445, 446)
      • 1.8 (55kW/75PS)
      • 1.8 (65kW/88PS)
      • 2.0 (83kW/113PS)
      • 2.1 (100kW/136PS)
      • 2.2 (85kW/115PS)
      • 2.2 (101kW/137PS)
      • 2.2 Turbo (121kW/165PS)
      • 2.3 (100kW/136PS)
      • 2.0 D (51kW/70PS)
      • 2.0 TD (64kW/87PS)
      • 2.2 quattro (101kW/137PS)
      • 2.2 Turbo quattro (121kW/165PS)
      • 2.3 E quattro (100kW/136PS)
      • 2.2 E quattro (88kW/120PS)
      • 1.9 (74kW/100PS)
      • 1.8 quattro (65kW/88PS)
      • 1.8 Cat quattro (66kW/90PS)
      • 1.8 quattro (66kW/90PS)
      • 2.0 E (85kW/115PS)
      • 1.8 Cat (66kW/90PS)
    • 100 C2 Avant (435, 436)
      • 1.6 (63kW/85PS)
      • 2.1 (85kW/115PS)
      • 2.1 (100kW/136PS)
      • 2.0 D (51kW/70PS)
      • 1.9 (74kW/100PS)
      • 2.0 (85kW/115PS)
  • CITROËN
    • AX (ZA-_)
      • 10 E (30kW/41PS)
      • 10 (33kW/45PS)
      • 11 (40kW/54PS)
      • 1.3 Sport (ZAM4A) (70kW/95PS)
      • 14 (44kW/60PS)
      • 14 (62kW/85PS)
      • 14 (49kW/67PS)
      • 14 D (38kW/52PS)
      • 14 D (37kW/50PS)
      • 11 (44kW/60PS)
      • 14 (ZA) (55kW/75PS)
      • 14 4x4 (55kW/75PS)
      • 11 Cat (ZA_) (40kW/54PS)
      • 1.4 GTi (66kW/90PS)
      • 1.4 GTi (69kW/94PS)
      • 10 (37kW/50PS)
      • 1.4 GTi (74kW/100PS)
      • 10 (32kW/44PS)
    • CX I (MA)
      • 2200 D (49kW/67PS)
      • 2500 D (55kW/75PS)
      • 25 D Turbo (70kW/95PS)
    • CX I Break (MA)
      • 2500 D (55kW/75PS)
      • 2500 D Turbo (70kW/95PS)
      • 2200 D (49kW/67PS)
  • PEUGEOT
    • 205 I (741A/C)
      • 1.0 (33kW/45PS)
      • 1.1 (36kW/49PS)
      • 1.1 (37kW/50PS)
      • 1.4 (44kW/60PS)
      • 1.4 (58kW/79PS)
      • 1.4 (59kW/80PS)
      • 1.6 (53kW/72PS)
      • 1.6 (55kW/75PS)
      • 1.6 GTI (76kW/103PS)
      • 1.9 GTI (94kW/128PS)
      • 1.7 Diesel (44kW/60PS)
      • 1.9 GTI (75kW/102PS)
    • 205 II (20A/C)
      • 1.1 (36kW/49PS)
      • 1.1 (40kW/54PS)
      • 1.4 (44kW/60PS)
      • 1.4 (49kW/67PS)
      • 1.4 (58kW/79PS)
      • 1.4 (62kW/84PS)
      • 1.6 GTI (76kW/103PS)
      • 1.9 GTI (94kW/128PS)
      • 1.7 Diesel (44kW/60PS)
      • 1.9 Diesel (47kW/64PS)
      • 1.0 (33kW/45PS)
      • 1.1 (44kW/60PS)
      • 1.4 Cat (44kW/60PS)
      • 1.4 (55kW/75PS)
      • 1.6 Aut. (65kW/88PS)
      • 1.9 GTI (75kW/102PS)
      • 1.9 GTI (88kW/120PS)
      • 1.9 GTI Cat (75kW/102PS)
      • 1.6 (53kW/72PS)
      • 1.6 (55kW/75PS)
    • 205 I Kabriolets (741B, 20D)
      • 1.4 CJ (44kW/60PS)
      • 1.4 CJ (49kW/67PS)
      • 1.4 CT (58kW/79PS)
      • 1.6 CTI (76kW/103PS)
      • 1.1 CJ (44kW/60PS)
      • 1.4 CJ (55kW/75PS)
      • 1.6 CJ (65kW/88PS)
      • 1.9 CTI (75kW/102PS)
      • 1.4 CJ Cat (44kW/60PS)
    • 205 Furgons/Hečbeks
      • 1.7 Diesel (44kW/60PS)
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