Need info on Q4 specific fuel level sending unit / fuel sender

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Cavallino
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Joined: Thu Nov 14, 2019 2:26 am

Need info on Q4 specific fuel level sending unit / fuel sender

Post by Cavallino » Wed Jan 29, 2020 1:00 am

The fuel gauge in the instrument cluster of my Q4 is reading completely empty and the red dot is illuminated, regardless of how much actual fuel is in the tank. The fuel pump works fine.
I know this is a common issue with the fuel level sending unit on standard 164’s. Unfortunately the Q4 has an entirely different fuel tank with a different fuel pump, and auses 2 fuel level sending units, both of which are also different parts than the single fuel level sender used in standard FWD 164 models.
Does anyone know the part # or where I can find them, for the Q4.
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Last edited by Cavallino on Wed Feb 05, 2020 6:33 pm, edited 2 times in total.

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Alfan
Q4 owner
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Joined: Thu Oct 22, 2009 8:20 pm
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Re: Need info on Q4 specific fuel sending unit / fuel sender

Post by Alfan » Wed Jan 29, 2020 6:12 pm

I need to dive into this myself, as mine is 'off' in what it shows vs. what is actually in the tank.

I believe there are 2 units for measuring fuel level to avoid false readings, as the fuel tank is a very different design to the FWD 164. The float might be the problem (mechanical) or the electrical connection is broken, though I don't know if that what show an empty tank.

You should be able to find a description of the system somewhere in the Q4 documentation on this homepage.
1994 Alfa Romeo 164 Q4 Proteo Rosso 550.000km
1989 Lancia Thema 8.32 Verde Indy 270kkm
2001 Alfa Romeo Spider 3.0 24V Blue Lightning 65kkm
2011 Alfa Romeo Giulietta Multiair TCT Bianco Pastello 195kkm
2015 Alfa Romeo 4C Rosso Competizione 100kkm

xeremind
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Joined: Sun Feb 16, 2020 3:35 pm

Re: Need info on Q4 specific fuel level sending unit / fuel sender

Post by xeremind » Sun Feb 16, 2020 3:57 pm

Hello all,

I also need some info on this.

I bought a 164 Q4, but is missing fuel sender and fuel pump unit, believe it is all in one.

Anyone?

Thank you in advance!

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Alfan
Q4 owner
Posts: 1218
Joined: Thu Oct 22, 2009 8:20 pm
Location: Denmark
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Re: Need info on Q4 specific fuel level sending unit / fuel sender

Post by Alfan » Mon Feb 17, 2020 10:50 am

Welcome, xeremind :)

Please make an introduction of yourself in the 'Introduce yourself' forum. Photos of your 164 is also appreciated.

I suggest you download the files for the Q4 on this site. There are good explanations with illustrations for the fuel delivery system, which should help you. As I mention above, there are 2 sending units, placed separately and I don't think any of them are combined with the pump. You have 3 openings for the fuel tank (+ filling), 2 below the rear seat & 1 in the boot.
1994 Alfa Romeo 164 Q4 Proteo Rosso 550.000km
1989 Lancia Thema 8.32 Verde Indy 270kkm
2001 Alfa Romeo Spider 3.0 24V Blue Lightning 65kkm
2011 Alfa Romeo Giulietta Multiair TCT Bianco Pastello 195kkm
2015 Alfa Romeo 4C Rosso Competizione 100kkm

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