MFTS delete?

[driftin jo]

034919369C is the AAR/AAN/ABY/ADU F76 MFTS.

The F76 Multifunction temperature sender has different functions in the ABY and ADU than the AAN. For all three, the MFTS is the sender for the temperature gauge in the instrument cluster. On the ABY/ADU, the MFTS is also connected to the ECU via pin 46 of the T55 ECU connector. Using this pin as a high temp alarm (> 119 C) - the ECU cuts off active boost control as a safety measure. Eliminating that signal might freak out the ECU.

F76 MFTS info: http://forums.quattroworld.com/s4s6/msgs/22584.phtml

There is no signal it's just a switch, it's open (normal condition) and closed in (over temp), that's why you can just cut the wire or unplug it and the ECU is none the wiser.
Many people have done this on ABY when the MTFS goes **** up and reduces you to spring boost.
You can also wire a switch in to give you a “Valet mode” as no code is stored in the ECU when the switch is opened again.

[UrS4boy]

There is no signal it's just a switch, it's open (normal condition) and closed in (over temp), that's why you can just cut the wire or unplug it and the ECU is none the wiser. Many people have done this on ABY when the MTFS goes **** up and reduces you to spring boost. You can also wire a switch in to give you a “Valet mode” as no code is stored in the ECU when the switch is opened again.

Thanks. Good to know. I'll add your info to my F76 MFTS info.

[ralleyquattro]

That would be good if its not mega expensive, if you can find the part number it would be great

049 919 501E

Less than $20

http://www.amazon.com/gp/product/B001G5W9XE/ref=as_li_ss_tl?ie=UTF8&tag=everybenz-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B001G5W9XE

[Laaf]

049 919 501E

Less than $20

http://www.amazon.com/gp/product/B00...SIN=B001G5W9XE

Do you have a part number for the corresponding connector? And what spade connectors is to be used, same as in the F76 connector?

[AndyP]

Also, what car is it off? Trying to find a supplier here in the UK

[UrS4boy]

Also, what car is it off? Trying to find a supplier here in the UK

049919501E seems to be C3 and B3 Audis including KV and 7A engines. 120 C, two pin, white, M10 x 1.

[Error404]

Some part numbers:

Behr 8.051.01
FAE 32200F
Meyle 100 919 0027

[AndyP]

Some part numbers:

Behr 8.051.01
FAE 32200F
Meyle 100 919 0027

Thanks, found the Meyle one on Amazon for £11.50 delivered

[ralleyquattro]

Also, what car is it off? Trying to find a supplier here in the UK

In Canada all Coupe GT and 4000 quattro had them.

Hope this helps.

[ralleyquattro]

049919501E seems to be C3 and B3 Audis including KV and 7A engines. 120 C, two pin, white, M10 x 1.

7A uses the MFTS, where did you see that the 2-pin sensor was used on a 7A??

[UrS4boy]

7A uses the MFTS, where did you see that the 2-pin sensor was used on a 7A??

Can't find it ATM, but I didn't make it up. I searched 049919501E under Local Market, A10Q, then ATP, All models. Lots of C3 and B3s come up. I don't find 7A now either, just KV for the ACOQ. (???) but I did see it.

I think.

[ralleyquattro]

Can't find it ATM, but I didn't make it up. I searched 049919501E under Local Market, A10Q, then ATP, All models. Lots of C3 and B3s come up. I don't find 7A now either, just KV for the ACOQ. (???) but I did see it.

I think.

No need for KATE, I can tell you from experience 7A uses MFTS just like 200/S2/S4/S6
Other B3, possible, but I also know that once Audi switched to 2.3 enignes (mid '87) the MFTS became standard across the board, it was used on the 1987.5 Coupe GT as well.

Cheers

[Ryss]

I just so happen to working on this problem on my type 85 Quattro to which I am fitting a ABY motor, with after market ECU.

The type 85 (original engine was a KV) has an alarm and light that goes off on overheat and/or on low water level condition. To me it looks like both circuits are normally open,
But the light flashes continuously.

I can not find the problem. Electronics are not my strong point. Any suggestions?

I am using an additional temp sender from the back of the head in the water manifold as it has the same thread as the MFTS. Have not seen whether the resistance of this sender matches the OE sender.

[AndyP]

Thanks, found the Meyle one on Amazon for £11.50 delivered

Great service from Amazon, it's just arrived!! Ordered at 5.30pm, delivered at 11.50am next day

[Rikki Kitto]

This sounds like such a good move I've had nightmares with MFTS over the past couple of years and at £120 from Audi they need deleting