Coolant Temp Sensor 2.0 TDi BKD

Hi all,

Looks like my 2005 A3 may have a faulty coolant temp sensor.

Anyone changed one before ? Is it similar to the 1.8T in that you can swap it with minimal coolant loss (when the Engine is cold) ?

Thanks,

Paul

Thanks - so basically exactly the same proceedure as swapping it on a 1.8T.

I take it that it is just held in by a slide clip in the same way. ?

Paul

Right it has popped another code so there is obviously a fault. Sebastian at Ross-Tech has said that there are knows issues with the sensors and an optimized part after week 25 2005 (stamped on sensor WW-YY so anything after 25-05).

Spoke to my local dealer and they have 6 in stock - the downside it is £30 including the O-Ring.

So of later to pick on up.

Paul

Changed it last night - wasn't too bad.

The top of the airbox and MAF have to be removed, the lovely chap in the factory that fitted the original, also decided it would be a laugh to put the release clip for the loom on the block side. So I ended up taking the sensor out still attached to the loom.

Of course, as always happens, the O-ring stayed in place. Also you do loose a fair bit of coolant - a lot more than when I change the 1.8T sensor on my Golf. The level in the header dropped about an inch, left a bit of a puddle on my garage floor.

Cleared the code and did a quick test (as I was out last night) and the code didn't return.

I will do a longer test tonight and let the temp get up to 90.

Paul