Coolant level sensor

[BGB autosport]

A couple of times now ive had the coolant level warning, (on off on off throughout the journey). The tank is full so i assume the sensor is on its way out, at £45 plus vat & shipping etc its not crazy but i suspect its only a ford part.

Ive dropped my camera down but cant see a part number and need the car later and tomorrow. Does anyone know the FoMoCo part or other equivalent?

[ds666]

Which model ?

[BGB autosport]

Sorry, 2011 rapide but looks like all the VH are the same

[yvr]

i replaced the sensor in my DB9. Made no difference. The real problem was the float inside the tank was sticking. When you order a new tank, a sensor is included.

[BGB autosport]

Iinteresting, i didnt know there was a float, i thought it was just some sort of conduction sensor.

[bogie]

Replaced the sensor on a 2006 and 2012 Vantage, fixed the issue both times. Sensor reporting low when it was full. Easy DIY job

[DB9S Paul]

BGB autosport said:

Iinteresting, i didnt know there was a float, i thought it was just some sort of conduction sensor.

The sensor is a Reed switch that goes inside a tube (so no worries about the sensor leaking coolant if its not a good seal). On the outside of the tube is a float with a small magnet that opens and closes the reed switch as it goes up and down.

It is normally the Sensor (reed switch ) that fails, its the same part as a Range Rover and is easy to swap out. Occasionally the float might get swamped and sit at the bottom of the expansion chamber but this is more rare.

[DB9S Paul]

They can be had on Ebay for as little as £7.

Part No for the Range Rover part is PCJ500030LR

[BGB autosport]

Perfect, thanks Paul! Very much appreciated.

Ive ordered a JLR genuine one rather than go the cheapest route, still a 3rd the aston price!