Engines / Petrol / MED 9.5.10 CAN general / Test - thermostat for controlled engine cooling

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Model

Control unit Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Diagnostic operation Select the desired diagnostic procedure.

Diagnostic procedure

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Conditions:
- engine speed = idling
- temperature of cooling liquid = XX °C

connect with the control unit XX - engine

XX - Measured values group XXX

observe values:
field X = increasing (temperature of cooling liquid - engine outlet)

desired condition:
The exit temperature from the engine must sharply change after along engine run due to transition from the small to the large cooling circuit

upon non--achievement of condition - check component:
- thermostat for controlled engine cooling

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