Hi ive got a 1993 Audi coupe 2.3e b4 ng engine and i want to replace the coolant temp sensor. Ive removed the old one which has 4 pins part number 035919369L and ordered a new one with exactly the same part number which only has 3 pins. Every part ive tried to buy only has 3 pins. Does anyone know if the part with 3 pins will do the same job as the 4 pin original which i cant buy anywhere. Any feedback would be much appreciated. Thanks Ian!!!

Hello Ian,

Is this sensor the one that controls the fuel mixture, or is it a sender which operates the coolant temperature gauge - or both!? 

If you could let us know what is/isn’t working properly it would be great.

Kind regards,

Gareth. 

Hi Gareth thanks for replying. Were not sure what the sensor does. It probably has got something to do with the temperature gauge but not sure. Were only changing it because it just looks like its past its best so we thought wed replace it. Weve done this with a few parts on the car. The sensor is on my girlfriends 2.3 b4 audi but il send u a photo of the one on my  2.3 B3 Audi as it looks the same and probably is the same. This is the sensor close to the hose! Thanks Ian!!!