Coupe/NG Temp sender

Duffy3074 · 19-05-18, 09:28 AM

Morning!

I'm trying to replace the temp sender on the Coupe.

The part number on the current sender is 035 919 369 L, the number listed on 7-zap is 035 919 369C.

The L is a 4 pin sender, the C is a 3 pin sender. Everything I can find suggest that the 3 pin sender is a replacement for the L (despite it being the earlier suffix).

Was the 4th pin superfluous or is there something else going on?

The common listed aftermarket replacements (searching on both part numbers) is the Mahle TSW 46, which is a 3 pin part.

I've been thrown into a state of discombobulation by this one.

Duffy3074 · 19-05-18, 09:31 AM

https://www.audiworld.com/forums/aud...-wire-2115616/

After searching for ages stumbled across this!!

The power of the world wide interweb thingie.

mikes2 · 19-05-18, 11:43 AM

It's also commonly called the MFTS.

Just be aware of the poor quality ones which give a wrong reading. Meyle being the worst examples.

Duffy3074 · 19-05-18, 12:04 PM

All noted!

vorsprung durch technik · 19-05-18, 01:34 PM

Quote:

Originally Posted by mikes2

It's also commonly called the MFTS.

Just be aware of the poor quality ones which give a wrong reading. Meyle being the worst examples.

Wise words..........too many buy cheap and then report wrong readings.

Davids · 19-05-18, 07:10 PM

I did a crap load of reading on this as I also needed the 4 pin.
I found Audi still did it for something like £170 or so, right.

The 3 pin ones still have the same number.

There is a bloke in the USA who took a load of them, ( 3 pin ) and found they still actually worked in place as the 4 pin, however the 4 he tried all had slightly different resistances and gave slightly different temp readings, he ended up trying several more and found one that gave the nearest reading to what the actual temp was. Mine reads just slightly on the hot side of normal during this weather, the fans still kick in correctly from the other sender unit and I don't seem to have any issues. Now I know it is just slightly high I'm fine with it, also being a f*&*& sh**&t bag of a thing to get to this one was staying.

David

Duffy3074 · 19-05-18, 07:17 PM

Very much my point of view when it comes to the gauge.

As long as it’s consistent I’ll be happy.

moonwatcher · 20-07-18, 12:36 PM

The "bar graph" temperature indicator on my cq is indicating zero, the engine has been out and back in, I suspect (hope) the sensor has not been reconnected but I can't find the sensor.
Where is it?

quattrodave · 20-07-18, 04:50 PM

Quote:

Originally Posted by moonwatcher

The "bar graph" temperature indicator on my cq is indicating zero, the engine has been out and back in, I suspect (hope) the sensor has not been reconnected but I can't find the sensor.
Where is it?

Long time since I owned one of these but if you are referering to the oil temperate LED gauge then the sender is on the bottom of the oil pump (I assume its a 5 cylinder) its the bottom threaded section of the oil pump relief valve which is part number 035 919 521b according to 7zap.

urquattr085 · 21-07-18, 05:38 AM

Quote:

Originally Posted by quattrodave

Long time since I owned one of these but if you are referering to the oil temperate LED gauge then the sender is on the bottom of the oil pump (I assume its a 5 cylinder) its the bottom threaded section of the oil pump relief valve which is part number 035 919 521b according to 7zap.

As Dave says, bottom of the oil pump on 5cyl. It's connected by a single wire coming from the alternator loom, normally has a 90° rubber cap

19-05-18, 11:43 AM	#3
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	It's also commonly called the MFTS. Just be aware of the poor quality ones which give a wrong reading. Meyle being the worst examples. __________________ 1991 90 quattro 20v sport 1991 90 quattro

20-07-18, 12:36 PM	#8
moonwatcher 4 ring whore! Classic Audi Club Member Join Date: Jul 2008 Location: Barrow in Furness, Cumbria Posts: 2,049	Oil temp sensor location The "bar graph" temperature indicator on my cq is indicating zero, the engine has been out and back in, I suspect (hope) the sensor has not been reconnected but I can't find the sensor. Where is it? __________________ Coupe Quattro 1985

19-05-18, 09:31 AM	#2
Duffy3074 4 ring whore! Classic Audi Club Member Join Date: Aug 2015 Location: Dalgety Bay, Fife Posts: 2,078	https://www.audiworld.com/forums/aud...-wire-2115616/ After searching for ages stumbled across this!! The power of the world wide interweb thingie.

19-05-18, 12:04 PM	#4
Duffy3074 4 ring whore! Classic Audi Club Member Join Date: Aug 2015 Location: Dalgety Bay, Fife Posts: 2,078	All noted!

19-05-18, 07:10 PM	#6
Davids 4 ring whore! Join Date: Jan 2017 Posts: 3,124	I did a crap load of reading on this as I also needed the 4 pin. I found Audi still did it for something like £170 or so, right. The 3 pin ones still have the same number. There is a bloke in the USA who took a load of them, ( 3 pin ) and found they still actually worked in place as the 4 pin, however the 4 he tried all had slightly different resistances and gave slightly different temp readings, he ended up trying several more and found one that gave the nearest reading to what the actual temp was. Mine reads just slightly on the hot side of normal during this weather, the fans still kick in correctly from the other sender unit and I don't seem to have any issues. Now I know it is just slightly high I'm fine with it, also being a f&& sh**&t bag of a thing to get to this one was staying. David

19-05-18, 07:17 PM	#7
Duffy3074 4 ring whore! Classic Audi Club Member Join Date: Aug 2015 Location: Dalgety Bay, Fife Posts: 2,078	Very much my point of view when it comes to the gauge. As long as it’s consistent I’ll be happy.