FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Bypass Thermostat Overview






Bypass Thermostat Overview





1 Retaining Clip

2 Lower Housing

3 Operating Element

4 Spring

5 O-ring

6 Upper Housing

Checking the Bypass Thermostat

- Remove the operating element - item 3 -.

- Warm the operating element in a coolant bath.

Opens at: approximately 75 °C (167 °C)

Stops opening at: approximately 85 °C (185 °F)

Opening travel: approximately 5 mm

Bypass Thermostat Location

Bypass thermostat for coolant circuit transmission oil:

Arrow on bottom part of thermostat points to heater core.

Bypass thermostat for coolant circuit turbocharger:

Arrow on bottom part of housing points to auxiliary coolant pump (V50).