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Thread: Q4 Thermostat

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    Unhappy Q4 Thermostat

    Need a new engine thermostat and they are out of production.

    What do you think I should do?

    I could phone round everywhere but the likelihood of finding someone with one sat on the shelf is pretty small - Mangoletsi (UK Alfa dealers) told me that eper says its unique to the Q4

    65-70C engine on the motorway isn't all that bad but its certainly not right.

    Any help or suggestions?

    Cheers
    Jack

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    can'y believe that they would use a completely unique stat for the Q4, a grale or fiat coupe one must physically fit. Also 3rd party/ pattern manufacturers must do them.

    I'll have a look through the old version of eper I've got to see if I can spot anything.
    Last edited by Steve Webb; 28-08-07 at 17:14.
    1994 Alfa Romeo 155 Q4: Dozeing in the garage.
    2009 Audi A4 tdi: Everyday drive.
    1994 Alfa Romeo 155 , 1995cc Std Standard Black

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    Bloody hell!!! Its one hell of a thermostat isn't it?
    1994 Alfa Romeo 155 Q4: Dozeing in the garage.
    2009 Audi A4 tdi: Everyday drive.
    1994 Alfa Romeo 155 , 1995cc Std Standard Black

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    Quote Originally Posted by daiblack on alfa155.org...
    Firstline do one P/N is FTS149.86 but it looks like a replacement thermostat rather than a complete replacement unit
    I will look in to this, also wrinx found this - might be the easiest route!

    http://www.alfa-service.eu/alfa/prod...d48e0700ff1116

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    Quote Originally Posted by Steve Webb View Post
    Bloody hell!!! Its one hell of a thermostat isn't it?

    and yes, there is a lot of pipes!!!!

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    Looks like it's been designed by the same people who did the 16v thermostat!!! Bloomin' 'orrible!

    As posted on 155.org...surely the Coupe 'stat is similar enough???? Don't suppose anyone owns a Coupe and can compare

    wrinx
    My Q4 in the Garage

    www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk

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    Im going to join up to FCCUK now and ask for a pic

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    Jeezzz, we were only asking and he swears at us...no need for the "F" word











    wrinx
    My Q4 in the Garage

    www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk

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    Quote Originally Posted by wrinx View Post
    Jeezzz, we were only asking and he swears at us...no need for the "F" word











    wrinx

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    Fiat Tipo Sedicivalvole has the same from the outside. Don't know what temperature does it open but can't be too different.
    A guy from here openned one of this and changed the spring in a Tipo. I'll try to get some more info.

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    Thanks Juan. I am still hoping to get more info on the Fiat Coupe 16v T one, it looks so similar.

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    Does anyone know if the internal bit is replaceable?

    I ask as I could buy this:
    http://www.firstline.co.uk/op3/produ...ct=Thermostats

    Problem is, I do not know if its a mistake? I guess its going to be cheap so I could just get it and try...

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    That?s what I?ve said, or try to said, that he changed the internals.

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    Quote Originally Posted by Juan AR155Q4 View Post
    That?s what I?ve said, or try to said, that he changed the internals.

    Ah, sorry Juan, I misread. I will get it and see

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    Quote Originally Posted by AlfaJack View Post
    Does anyone know if the internal bit is replaceable?

    I ask as I could buy this:
    http://www.firstline.co.uk/op3/produ...ct=Thermostats

    Problem is, I do not know if its a mistake? I guess its going to be cheap so I could just get it and try...
    Doing a sterling job Jack ....hope you sort it!

    wrinx
    My Q4 in the Garage

    www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk

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    Quote Originally Posted by wrinx View Post
    Doing a sterling job Jack ....hope you sort it!

    wrinx
    So do I!!! its been a PITA!!

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    Quote Originally Posted by AlfaJack View Post
    So do I!!! its been a PITA!!

    I had the same same problem with low engine temp. on a highway and searched for the thermostat as was told is out of production.

    We found a thermostat which is labled as Coupe 20V

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    Sorry for the unfinished post.

    I had the same same problem with low engine temp. on a highway and searched for the thermostat as was told is out of production.

    We found a thermostat which is labled as Coupe/Delta 16V turbo, but it did not had a turbo cooling channel/whole and one more whole for one of the coolant temperature sensors that were missing. The body and the piping was exactly the same. So we "fixed" the the new unit from these two "faults" and replaced the old one.

    It says Behr Thermot-troniks Italia as a producer. Could be an option to replace the old one.

    I'll post some pictures of the thermostat I replaced old one with later.

    M.

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    How did you "fix" the new unit?

    wrinx
    My Q4 in the Garage

    www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk

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    Quote Originally Posted by wrinx View Post
    How did you "fix" the new unit?

    wrinx

    Just bored and threaded the two holes that were needed.

    M.

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    The turbo cooling missing:


    The temperature sensor hole missing:


    Manufacturer and car/product specs:

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    Thanks for the info! Sounds a good idea if the internal replacement bit is a problem. I will let you all know if I ever get it

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    Quote Originally Posted by mindus View Post
    Just bored and threaded the two holes that were needed.

    M.
    As I thought, thanks

    So we have another way to get a thermostat....just need to see if Jack's plan comes together and decide which to use

    wrinx
    My Q4 in the Garage

    www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk

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    I've been watching this develop and as I work in Scotland and it's starting to cool over night and I need a new thermostat too.

    The best option I've found so far is the fiat coupe 2.0 16v IE thermostat as all the fittings are in the same place with the exception of the EGR sensor,which you can do away with or as posted above drill and tap.

    Fiat part No.7772114 Thermostat ?53.10 Mangoletsi
    ` 7701854 Gasket

    Quinten Hazel No. QTH520K ?33.95

    Both + VAT and delivery
    Lead follow or get the flock out of the way

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    Nope the main pipe didnt unscrew, instead it just turned, no hope of fitting the part that FirstLine list - the pipe you need to remove is press fitted, so now that iv tried turning the pipe I have broken the seal and it leaks, so car is off the road untill sorted

    It will have to be the Coupe route I think!

    Though I dont know who is going to drill those holes out - i bet its not easy!

    Pavs you mention the Coupe 2.0 16 IE - and mindus, you mention the Coupe 2.0 16v Turbo - are they the same?

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