Coolant temperature sensor - r + r
- Make
- Alfa Romeo
- Model
- 147 Factory Service Manual
- Year
- 2000–2004
- Section
- Petrol injection system › Coolant temperature sensor - r + r
Coolant temperature sensor - r + r
Removing
Ensure that the ignition key is in the OFF postition, then disconnect the battery negative terminal.
| Name | Connector | |
|---|---|---|
| Battery | A1B |
1. Disconnect the electrical connection from the air flow meter.
| Name | Connector | |
|---|---|---|
| 1 | Air flow meter | K41 |
Disconnect the electrical wiring for the flow meter from the fastening on the air intake sleeve.
2. Disconnect the oil vapour recirculation pipe from the air intake duct.
3. Undo the bolts (3a) and remove the air intakehouse (3b) complete with air flow meter (3c).
1. Disconnect the electrical connection from the engine coolant temperature sensor.
| Name | Connector | |
|---|---|---|
| 1 | Engine temperature sender unit | K36 |
2. Undo and remove the engine coolant temperature sensor.
Recover the coolant which comes out in a suitable container.
Refitting
Place the engine coolant temperature sensor back in its housing and tighten it to the recommended torque.
| Fastening | Component | Ø | Value (daNm) | |
|---|---|---|---|---|
| COOLANT TEMP SENSOR | M12 | (Thermostat side) 2.7 ÷ 3.3 |
Connect the electrical connection to the engine coolant temperature sensor.
Refit the air intake hose with air flow meter and secure with collars.
Connect the oil vapour recirculation pipe to the air intake duct.
Connect the electrical connection to the air flow meter and secure the electrical wiring to the fastening on the air intake sleeve.
Connect the battery terminal (-).
Refill the engine cooling system with coolant - 0010T20 coolant change.
Removing
Ensure that the ignition key is in the OFF postition, then disconnect the battery negative terminal.
| Name | Connector | |
|---|---|---|
| Battery | A1B |
1. Disconnect the electrical connection from the air flow meter.
| Name | Connector | |
|---|---|---|
| 1 | Air flow meter | K41 |
Disconnect the electrical wiring for the flow meter from the fastening on the air intake sleeve.
2. Disconnect the oil vapour recirculation pipe from the air intake duct.
3. Undo the bolts (3a) and remove the air intakehouse (3b) complete with air flow meter (3c).
1. Disconnect the electrical connection from the engine coolant temperature sensor.
| Name | Connector | |
|---|---|---|
| 1 | Engine temperature sender unit | K36 |
2. Undo and remove the engine coolant temperature sensor.
Recover the coolant which comes out in a suitable container.
Refitting
Place the engine coolant temperature sensor back in its housing and tighten it to the recommended torque.
| Fastening | Component | Ø | Value (daNm) | |
|---|---|---|---|---|
| COOLANT TEMP SENSOR | M12 | (Thermostat side) 2.7 ÷ 3.3 |
Connect the electrical connection to the engine coolant temperature sensor.
Refit the air intake hose with air flow meter and secure with collars.
Connect the oil vapour recirculation pipe to the air intake duct.
Connect the electrical connection to the air flow meter and secure the electrical wiring to the fastening on the air intake sleeve.
Connect the battery terminal (-).
Refill the engine cooling system with coolant - 0010T20 coolant change.
Removing
1. Loosen the band and disconnect the oil vapour recirculation pipe from corrugated hose.
2. Loosen the bands (2a) and remove the corrugated hose (2b), complete with resonator (2c).
1. Disconnect the electrical connection from the engine coolant temperature sensor.
| Name | Connector | |
|---|---|---|
| 1 | Engine temperature sender unit | K36 |
2. Undo and remove the engine coolant temperature sensor.
Refitting
Place the engine coolant temperature sensor back in its housing and tighten it to the recommended torque.
| Fastening | Component | Ø | Value (daNm) | |
|---|---|---|---|---|
| COOLANT TEMP SENSOR | M18 | (Thermostat side) 2.5 ÷ 3.1 |
Connect the electrical connection to the engine coolant temperature sensor.
Place the corrugated hose, complete with resonator, back in its housing and tighten the bands.
Connect the oil vapour recirculation pipe to the corrugated hose and tighten the band.
Parts & tools for this job For 2000 Alfa Romeo 147
- TOOLOBD2 scannerSearch: OBD2 scanner
- TOOLDigital multimeterSearch: automotive digital multimeter
- TOOLBack-probe test leadsSearch: back probe test leads
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