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Blower ok but no heat in car

  • 07-11-2016 03:52PM
    #1
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭


    E39, what could be up? A fuse gone? An element gone? It was working fine, then heat only coming through after about 30 mins of driving, and now it's not giving out any heat whatsoever. Any advice on a solution to the problem?


«1

Comments

  • #2
    joujoujou
    Registered Users, Registered Users 2 Posts: 15,672 ✭✭✭✭joujoujou
    Unregistered Users


    What's the coolant's level?

    Air trapped in the cooling system maybe?


  • #3
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭vicwatson


    joujoujou wrote: »
    What's the coolant's level?

    Air trapped in the cooling system maybe?

    Oh jeez you're talking to an amateur here :D:D where would that be in the engine for me to check?


  • #4
    porsche boy
    Registered Users, Registered Users 2 Posts: 1,550 ✭✭✭porsche boy


    If it heats up after 30 mind of driving I'd look at the thermostat, it could he stuck open.
    Are you loosing coolant? Is the car getting up to operating temp? How long does that take? Is the top hose going to the rad hot after driving?


  • #5
    milltown
    Registered Users, Registered Users 2 Posts: 4,625 ✭✭✭milltown


    What about engine temperature? Does that come up to normal pretty quickly?
    Could be the thermostat stuck open.

    NFTs funged. No questions asked.



  • #6
    Atlantic Dawn
    Registered Users, Registered Users 2 Posts: 86,596 ✭✭✭✭Atlantic Dawn
    GDY151


    This might help...

    http://blog.bavauto.com/12282/bmw-and-mini-diy-no-heat-diagnosing-heater-problems-how-to-diagnose/


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  • #7
    joujoujou
    Registered Users, Registered Users 2 Posts: 15,672 ✭✭✭✭joujoujou
    Unregistered Users


    vicwatson wrote: »
    [...] where would that be in the engine for me to check?

    Don't know that particular engine, but refer to car's manual.


  • #8
    biko
    Registered Users, Registered Users 2 Posts: 81,060 ✭✭✭✭biko


    Start by checking coolant level

    https://www.youtube.com/watch?v=O0vtDMMrOXE


  • #9
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭vicwatson


    porsche boy wrote: »
    If it heats up after 30 mind of driving I'd look at the thermostat, it could he stuck open.
    Are you loosing coolant? Is the car getting up to operating temp? How long does that take? Is the top hose going to the rad hot after driving?

    Well, it was heating up but now doesn't at all. Nothing dripping out of car anyway. Car temp gauge at half way right between cold and hot as normal and doing that in normal time frame
    milltown wrote: »
    What about engine temperature? Does that come up to normal pretty quickly?
    Could be the thermostat stuck open.

    Sure does no probs with that


  • #10
    millington
    Registered Users, Registered Users 2 Posts: 1,288 ✭✭✭millington


    Its either air in the coolant some how or it's the hot water valve which is on the passenger side strut tower


  • #11
    Foxhole Norman
    Registered Users, Registered Users 2 Posts: 5,872 ✭✭✭Foxhole Norman


    Is it petrol? I had a similar issue with both my 525 and 528, just needed to be topped up and bled, once that was done it was blowing very hot.


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  • #12
    Alanstrainor
    Registered Users, Registered Users 2 Posts: 23,146 ✭✭✭✭Alanstrainor


    From experience of these engines, if your coolant does need to be topped up it is very likely that you have a leak somewhere. It is a closed system, and shouldn't need to be regularly topped up. Check the coolant level when the engine is cold, and top it up as necessary. But keep a very close eye on it. Perhaps check it every morning for a little while to see if it drops.


  • #13
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭vicwatson


    Foxhole Norman wrote: »
    Is it petrol? I had a similar issue with both my 525 and 528, just needed to be topped up and bled, once that was done it was blowing very hot.
    Alanstrainor wrote: »
    From experience of these engines, if your coolant does need to be topped up it is very likely that you have a leak somewhere. It is a closed system, and shouldn't need to be regularly topped up. Check the coolant level when the engine is cold, and top it up as necessary. But keep a very close eye on it. Perhaps check it every morning for a little while to see if it drops.

    Thanks everyone for contributions.

    Can you tell me what colour is the coolant reservoir? And it's exact location under the hood? Don't recall seeing a yellowing container like the one in the video linked to above


  • #14
    Henry Ford III
    Moderators, Business & Finance Moderators Posts: 18,197 Mod ✭✭✭✭Henry Ford III


    Blocked heater matrix? Are the hoses to/from the rad hot?


  • #15
    893bet
    Registered Users, Registered Users 2, Paid Member Posts: 10,642 ✭✭✭✭893bet


    Most likely the thermostat. Very simple fix.


  • #16
    Foxhole Norman
    Registered Users, Registered Users 2 Posts: 5,872 ✭✭✭Foxhole Norman


    vicwatson wrote: »
    Thanks everyone for contributions.

    Can you tell me what colour is the coolant reservoir? And it's exact location under the hood? Don't recall seeing a yellowing container like the one in the video linked to above

    If it's a petrol it's attatched to the shroud covering the fan, it'll be just to the right of the drivers side light. A black reservoir.


  • #17
    Andrewf20
    Registered Users, Registered Users 2 Posts: 3,279 ✭✭✭Andrewf20


    If the thermostat is stuck open the engine will take forever (20mins + perhaps) to get to operational temperature with normal driving.

    At the back of the block at the windshield under the bonnet you might be able to reach in to the hot water pipes (supply / return) that run into the back of the dash. Check to see if these are warm to help gather clues. On my e36 they are very accessible. Should look something like pipes in the middle of pic :

    http://s75.photobucket.com/user/jmitro2000/media/IMG_0845a.jpg.html


  • #18
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭vicwatson


    Oh oh now my temp gauge has moved two thirds up the way towards red. What's that? Time to call mechanic


  • #19
    pajero12
    Users Awaiting Email Confirmation Posts: 1,495 ✭✭✭pajero12


    Op, Have you ever used Radweld or something similar for a leaky radiator?


  • #20
    millington
    Registered Users, Registered Users 2 Posts: 1,288 ✭✭✭millington


    vicwatson wrote: »
    Oh oh now my temp gauge has moved two thirds up the way towards red. What's that? Time to call mechanic

    You probably have a coolant leak or could just be airlocked. No point asking questions on here, get it looked at.


  • #21
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭vicwatson


    pajero12 wrote: »
    Op, Have you ever used Radweld or something similar for a leaky radiator?

    No, had though I had the rad replaced a few years back, maybe 4 or 5.

    Since I posted last the temp gauge went back and settled at mid point between cold and hot. Don't know whats going on


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  • #22
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭vicwatson


    millington wrote: »
    You probably have a coolant leak or could just be airlocked. No point asking questions on here, get it looked at.

    Well of course I will but my mech is away, and in fairness posters have been brilliant on here so there is a point to posting, they gave me great info


  • #23
    biko
    Registered Users, Registered Users 2 Posts: 81,060 ✭✭✭✭biko


    Possibly airlock
    Try burping car, I have described it here
    http://www.boards.ie/vbulletin/showthread.php?p=101537071


  • #24
    Henry Ford III
    Moderators, Business & Finance Moderators Posts: 18,197 Mod ✭✭✭✭Henry Ford III


    vicwatson wrote: »
    No, had though I had the rad replaced a few years back, maybe 4 or 5.

    Since I posted last the temp gauge went back and settled at mid point between cold and hot. Don't know whats going on

    I'd advise against driving it tbh.


  • #25
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭vicwatson


    Ha guess what now, got out of car at 16.30. Got back into car at 17.20 and the temp gauge goes straight to normal - immediately - it didn't crawl up, to the middle of the dial.

    Not driving through choice, needed to. Once I get my mech itll get sorted cheers


  • #26
    Alanstrainor
    Registered Users, Registered Users 2 Posts: 23,146 ✭✭✭✭Alanstrainor


    pajero12 wrote: »
    Op, Have you ever used Radweld or something similar for a leaky radiator?

    I'd advise against this, you'll just end up with a mess that needs cleaning. Could be any number of plastic pipes, or even the water pump that is leaking.

    OP, did you ever check the coolant level in the end? Check when the engine is stone cold. If it is very low strongly advise against turning it on again before someone takes a look.


  • #27
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭vicwatson


    Alanstrainor wrote: »

    OP, did you ever check the coolant level in the end? Check when the engine is stone cold. If it is very low strongly advise against turning it on again before someone takes a look.

    Just got round to checking it this morning and couldn't see the float, bought some Xstream G48 for it to top it up until I get it to my Mech.

    Can I use tap water to dilute this or must I use a de-ionised water to dilute it? is the de-ionised water a must? if so where will I get that? I plan on doing it in the morning when the engine is cold


  • #28
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭vicwatson


    Can I use tap water to dilute this or even bottled water. Don't know de ionised water or where I'd even get it.


  • #29
    CrowdedHouse
    Registered Users, Registered Users 2 Posts: 7,259 ✭✭✭CrowdedHouse


    If you're in a hard water area I wouldn't chance it.

    You can get de-ionised water in Tesco or Halfords etc

    Seven Worlds will Collide



  • #30
    vicwatson
    Registered Users, Registered Users 2 Posts: 28,417 ✭✭✭✭vicwatson


    Ah ****e and I was there today aarrgfgg


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  • #31
    TheChizler
    Registered Users, Registered Users 2 Posts: 9,559 ✭✭✭TheChizler


    If you have a dehumidifier the water from this would be a step up from tap water if you're stuck.


This discussion has been closed.
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