Coolant Sensor

[Alex1888]

Lno

Basically with the ignition on, 1 pin on the coolant temperature sensor connector should have 5v and the other pin should be 0v, reference to ground.
If this checks out, it's probably a new coolant sensor.
If this is not the case - you are into checking wiring/ECU/grounding.

Knowing my luck it'll be wiring. I'm going to have to take air box out and move a few pipes I think to get to the sensor

 

[Alex1888]

Got a replacement coolant temp sensor but still can't find it on the car. I've removed the air box to give me more room but still can't see it. Followed the coolant pipe but got a feeling the sensor is at Rear if engine. Any help would be appreciated.

 

[Alex1888]

Could this be it?

 

[DEAN0]

It's at the back of the engine ( the one with the green seals on it )

 

[Alex1888]

It's at the back of the engine ( the one with the green seals on it )
View attachment 36887

I had a look but couldn't see it . Will look again. Cheers mate

My sensor I bought looks a bit different from that. This is the one the auto shop gave me:

 

[DEAN0]

 

[DEAN0]

The sensor in the workshop manual looks different to the one you have

 

[Alex1888]

The sensor in the workshop manual looks different to the one you have
View attachment 36890

I'm confused now. I really don't want to go to a rip off garage. Thanks for the info mate. Will try again in the morning.

 

[DEAN0]

I'm confused now. I really don't want to go to a rip off garage. Thanks for the info mate. Will try again in the morning.

I would say this one looks like the one in the workshop manual

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[Alex1888]

I would say this one looks like the one in the workshop manual

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Just checked the one I bought and it's the same as that one

 

[DEAN0]

Just checked the one I bought and it's the same as that one

The picture you posted shows a straight sensor.
The one above is a right angle sensor

 

[Alex1888]

The picture you posted shows a straight sensor.
The one above is a right angle sensor

Yeah I posted the wrong picture, my apologies. It's definitely the right angle sensor I have.

Going by the page from the manual I dont get the removing of gearbox cables. Didn't think it would be that involved just to change a sensor.

I can see me selling this car soon.

 

[Alex1888]

So going by the pictures of my engine I posted, where roughly is the sensor? I know I'm being a bit thick but I've always used garages and never tried any mechanic stuff myself until I had this car and the garages couldn't fix anything.

 

[DEAN0]

Have a look at this video - 38 secs in - he shows you the sensor and its location

 

[Alex1888]

Have a look at this video - 38 secs in - he shows you the sensor and its location

That's the video I watched today and why I took the air box out to give me more room but couldn't see the sensor. Unless I have pipes, hoses or something obscuring it. Looks like I'll be taking more bits off lol. What a hassle for 1 sensor. Why do car manufacturers never make it easy?

 

[SuperV8]

So going by the pictures of my engine I posted, where roughly is the sensor? I know I'm being a bit thick but I've always used garages and never tried any mechanic stuff myself until I had this car and the garages couldn't fix anything.

Your coolant sensor is here:

 

[Alex1888]

Your coolant sensor is here:

View attachment 36962

Cheers, had a look and thought it was there. So I take it I have to remove that big hose and the smaller ones?

 

[BillyCool]

Cheers, had a look and thought it was there. So I take it I have to remove that big hose and the smaller ones?

My mechanic had to remove the fat (air intake?) hose to get to it. The bolt that holds it in the block also holds another bracket in place, so it's a real faff to get out. He said it was a real b@ll ache.

Just pray you never have to replace the thermostat housing or EGR cooler. More VAG witchcraft.

 

[Alex1888]

My mechanic had to remove the fat (air intake?) hose to get to it. The bolt that holds it in the block also holds another bracket in place, so it's a real faff to get out. He said it was a real b@ll ache.

Just pray you never have to replace the thermostat housing or EGR cooler. More VAG witchcraft.

Aye it seems a real faff. To be fair after doing the MAF and an oil service(first time doing it myself) the car is running great. Time to sell it I think while I've got it running good. Just had enough now. Will miss it but not too much.

 

[caldi]

Aye it seems a real faff. To be fair after doing the MAF and an oil service(first time doing it myself) the car is running great. Time to sell it I think while I've got it running good. Just had enough now. Will miss it but not too much.

Probably water getting into the control modules as so many faults showing