BRAND NEW *OEM Quality* coolant temperature sensor to suit Holden Astra, Barina, Vectra, Combo and Insignia with 1.4L to 3.2L Ecotec/Family II petrol engines.

If your Holden is running rich when warm, showing a temperature gauge fault, or logging a P0115 / P0116 fault code - the coolant temperature sensor is a common and inexpensive fix across this engine family. Direct plug-in replacement with no wiring modification needed. Same-day dispatch from Cranbourne VIC.

TO SUIT

Holden Astra AH / TS 2.0L turbo (Z20LER / Z20LET) [04/03 - 06/09]
Holden Barina SB / XC 1.4L (C14SE / Z14XE / Z14XEP) [08/97 - 10/05]
Holden Combo XC 1.4L (Z14XEP) van [05/05 - 12/12]
Holden Vectra JR / JS / JS II / ZC 2.5L-3.2L V6 (X25XE / Y26SE / Z32SE) [06/97 - 12/06]
Holden Insignia VXR GA 2.8L V6 turbo (A28NER) [02/15 - 12/17]

OEM PART NUMBERS

12566778
12639899
55566146
96868950
5341391

OTHER PART NUMBERS

BOSCH: 0280130122
VEMO: V40-72-0332
WALKER: 211-1043

PACKAGE INCLUDES

1 x BRAND NEW coolant temperature sensor with 2-pin connector and seal ring. Thread: M12x1.5mm.

ABOUT THIS SENSOR

This sensor spans five very different Holden model lines - hatchbacks, a van, a mid-size sedan and a hot hatch - because they all share the same Opel-sourced Ecotec/Family II engine architecture and the same GM coolant sensor design underneath. The coolant temperature sensor measures engine coolant temperature and sends a voltage signal to the ECU for fuel injection, ignition timing, idle speed and cooling fan control.

A failing sensor typically causes rich running when warm, poor fuel economy, rough idle and temperature gauge faults - symptoms that show up the same way whether it's a 1.4L Barina or a 2.8L turbo Insignia.

COMMON SYMPTOMS OF FAILURE

Check engine light with fault code P0115 / P0116 / P0117 / P0118
Temperature gauge reading incorrectly or erratically
Poor fuel consumption - running rich when warm
Rough or hunting idle at operating temperature
Cooling fan running constantly or not switching off
Hard starting when cold

[06/06 - 06/09] HOLDEN ASTRA AH 2.0L 4cyl Z20LER Turbo
[04/03 - 06/04] HOLDEN ASTRA TS 2.0L 4cyl Z20LET Turbo
[08/97 - 12/00] HOLDEN BARINA SB 1.4L 4cyl C14SE
[04/01 - 06/04] HOLDEN BARINA XC 1.4L 4cyl Z14XE
[07/04 - 10/05] HOLDEN BARINA XC 1.4L 4cyl Z14XEP
[05/05 - 12/12] HOLDEN COMBO XC 1.4L 4cyl Z14XEP
[06/97 - 07/98] HOLDEN VECTRA JR 2.5L V6 X25XE
[08/98 - 07/99] HOLDEN VECTRA JS 2.5L V6 X25XE
[08/99 - 09/00] HOLDEN VECTRA JS II 2.5L V6 X25XE
[10/00 - 12/02] HOLDEN VECTRA JS II 2.6L V6 Y26SE
[03/03 - 12/06] HOLDEN VECTRA ZC 3.2L V6 Z32SE
[02/15 - 12/17] HOLDEN INSIGNIA VXR GA 2.8L V6 A28NER Turbo

How do I test a coolant temperature sensor?

The most common test is to measure the sensor resistance with a multimeter at a known coolant temperature and compare against the manufacturer resistance curve. A cold engine (20 degrees C) typically reads 2,000 to 3,000 ohms and drops to around 200 to 300 ohms at operating temperature (90 degrees C). An OBD2 scanner showing a fixed temperature reading that does not change as the engine warms up is also a strong indicator of sensor failure.

Can a faulty coolant temperature sensor cause my engine to overheat?

Indirectly yes. If the sensor reports a lower temperature than actual, the ECU may not activate the cooling fan at the correct time, allowing the engine to overheat. It can also suppress the dashboard warning light, meaning you may not be alerted until the engine is already at a dangerously high temperature. Replace a suspected faulty sensor promptly.

Do I need to drain the coolant to replace the sensor?

Not always - many coolant temperature sensors can be replaced quickly with minimal coolant loss if you work fast and have a replacement ready to thread in immediately. However on some vehicles the sensor location requires partial coolant drainage. Check the sensor position on your specific engine before starting. Always use fresh coolant when topping up after replacement.

What are the symptoms of a faulty coolant temperature sensor?

Symptoms include poor fuel economy, black smoke, engine overheating warning, incorrect temperature gauge reading, hard starting when cold, and rough idle. Fault codes P0115 to P0119 are commonly associated with coolant temperature sensor faults.

Is it safe to drive with a bad coolant temperature sensor?

A faulty coolant temperature sensor can cause the ECU to run rich fuel mixtures and prevent the cooling fan from operating correctly, risking engine overheating. Replace it promptly - it is a low-cost part that can prevent expensive engine damage.

How do I know if my coolant temperature sensor or my thermostat is faulty?

A faulty thermostat typically causes the engine to overheat or never reach operating temperature. A faulty coolant temp sensor causes incorrect gauge readings and running issues but the coolant itself may be at the correct temperature. An OBD2 scanner showing live coolant temp data helps distinguish between the two.

Are there two coolant temperature sensors on my vehicle?

Many vehicles have two sensors - one for the ECU (engine management) and one for the dashboard temperature gauge. They look similar but are not interchangeable. Check your vehicle's service manual or contact us with your vehicle details to confirm which sensor you need.

Identification
SKU	CCS41-Astra
Barcode #	4047024218239
Brand	Aftermarket OEM Replacement
Part Numbers
Part Number	CCS41
Reference OEM Number	12566778
Other OEM Numbers	12566778, 12639899, 55566146, 96868950, 5341391
Related Part Numbers	CCS41, CS874, TCS102, 0280130122, TS10237, TS10253
Trade Part Numbers	BOSCH: 0280130122, VEMO: V40-72-0332, WALKER: 211-1043
Product Specifics
Product Type	SENSOR
Sensor Type	Coolant Temperature Sensor
Thread Size	M12x1.5 mm
Spanner Size	19 mm
Number of pins	2-Pin
Connector Shape	oval
Housing Colour	Black
Compatible Makes	Holden
Fitment Type	Direct Replacement
Other Details
Note	Always verify fitment using your vehicle's OEM part number.