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BEX HEAD REPLACEMENT?

BareBack88 Jan 25, 2017

  1. BareBack88

    BareBack88 New Member

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    Hi I'm new to this forum so here goes, a spark plug recently sheared off in my head!! (NGK) Nightmare! I have removed the head to find out that 2 of the valve seats have cracked it cylinders 1 and 2!! So I'm going to replace my head, my question is what other head from the 1.8t other than the BEX will fit.

    Cheers any help would be much appreciated
     
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  3. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    Most of the 1.8t heads will fit, older ones like AEB will fit but don't have the secondary air injection port. The newer heads are known as small port and the older ones are large port. I have an ARY head on my BFB bottom end, ARY is from 1,8t Audi TT 180hp.

    http://www.ebay.co.uk/itm/Audi-A4-B...abd95fc&pid=100005&rk=1&rkt=6&sd=162360641968
     
    Last edited: Jan 25, 2017
  4. BareBack88

    BareBack88 New Member

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    Cheers that's a big help I'll get searching
     
  5. BareBack88

    BareBack88 New Member

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    So will the AMK fit out of the cupra r just found a complete head that's all cheers
     
  6. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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  7. BareBack88

    BareBack88 New Member

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    Ok thanks thats not a issue as I have no sai or cat I have removed them both, it needs a map from removing them anyway engine management light on does that head have vvt?
     
  8. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    Last edited: Jan 25, 2017
  9. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    679
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  10. BareBack88

    BareBack88 New Member

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  11. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    Was it cross threaded or did it just refuse to come out?
     
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  13. BareBack88

    BareBack88 New Member

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  14. BareBack88

    BareBack88 New Member

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    It sheared off so the threads were stuck in tried a easy out but it was well stuck it
     
  15. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    Bad luck that, another £50 for a new head gasket and head bolt set and you're done.
     
  16. BareBack88

    BareBack88 New Member

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    Hopefully this AUM head will be ok
     
  17. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    Keep my fingers crossed for you mate.
     
  18. Stephen Don

    Stephen Don New Member

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    Hi I recently purchased a 2004 A4 Quattro Avant 1.8t 190bhp. Was very excited purchasing the car and all I wanted to do was just jump in and drive, unfortunately I didn't do the proper checks and after some inspection I notice that the cylinder head stamp is AUM. My question is, is it compatible with a bex block or would it be a complete AUM engine in my new Audi? What are the pros and cons of any? Car is running fine at the moment just not sure if this work was done recently or not and if my engine is a ticking time bomb, I'm not very mechanically minded so I'd appreciate some advice please
     
  19. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    Don't worry the heads are interchangeable between all the 1.8t's except the older large port heads (AEB) because they don't have the Saip port (for emissions)
    I have an ARY head from an Audi TT on my BFB engined A4.

    Sent from my ANE-LX1 using Tapatalk
     
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  20. Stephen Don

    Stephen Don New Member

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    Cheers for the quick reply mate and what about bhp? Would there be any difference? And where would I locate the engine number on the block to see if it's still a BEX?
     
  21. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    No difference at all, it's the ECU that determines power output. I don't know where the engine number is stamped. Pretty common to have the head changed.

    Sent from my ANE-LX1 using Tapatalk
     
  22. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    AUM is used in VW Golf 2001 on.

    Sent from my ANE-LX1 using Tapatalk
     
  23. Stephen Don

    Stephen Don New Member

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    What kind of damage would have to be done in the first place to change the head and is it possible that there is in fact a complete AUM engine in my car?
     
  24. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    Maybe the timing belt snapped and bent all the valves, it's usually cheaper to use a second hand head rather than replace all valves etc.
    It is possible that it's a complete engine.

    Sent from my ANE-LX1 using Tapatalk
     
  25. Stephen Don

    Stephen Don New Member

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    I'll get someone to have a look it's killing me just not knowing, I'm a bit relieved to hear that the heads areally interchangeable and I may not have been totally ripped off. One more thing mate theres a leak in the coolant system somewhere I know it could be anywhere but if it's a common problem in a particular area of the cooling system where should I be looking?
     
  26. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    Most common are the rear coolant flange on the back of the cylinder head and the "j plug" that's behind the thermostat housing below the inlet manifold near the front of the block. I would change the j plug anyway.

    Sent from my ANE-LX1 using Tapatalk
     
  27. Stephen Don

    Stephen Don New Member

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    Cheers mate, thanks for all your advice, stress levels have lowered big time, I'll check it out.
     
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  28. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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  29. Stephen Don

    Stephen Don New Member

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    Just out of curiosity what kind of price would you put on my car. 2004 b6 quattro Avant S line, Daytona Grey in mint condition with service history , sun roof, Bose sound system standard, rs6 genuine alloys
     
  30. Stephen Don

    Stephen Don New Member

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    143000 miles
     
  31. Stephen Don

    Stephen Don New Member

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    And for oil change should I use 0w 30 or 5 w 30
     
  32. QuattroCalum

    QuattroCalum Well-Known Member saloon Audi A4 Black Edition Saloon Manual

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    Sorry I have no idea on value.
    Use Castrol Edge Professional 5w30, 5 litres on Ebay for around £30 delivered also make sure you get the large oil filter.

    Sent from my ANE-LX1 using Tapatalk
     

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