Remove/install coolant temperature sensor in engine compartment for auxiliary circuit

AR08.50-D-0040TE

Remove/install coolant temperature sensor in engine compartment for auxiliary circuit

28.11.2019

Engine

780.703 in model 910

1

Coolant temperature sensor

2

Electrical connector

3

Connection fitting

4

Sealing ring

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

 Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system

AH00.00-Z-0300-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

 

Remove/install

1

Drain coolant of the auxiliary circuit.

AR08.50-D-0022TE

2

Disconnect electrical connection (2).

3

Remove coolant temperature sensor (1).

 For this purpose, remove catch spring and coolant temperature sensor (1) from connection fitting (3).

 Collect escaping coolant. Seal off opening.

 Commercially available devices/tools
Collecting pan

 Record plug

*129589009100



Check

4

Check coolant temperature sensor (1) and sealing ring (4) for damage.

If damage is present:



Replace coolant temperature sensor (1).

5

Install in the reverse order.