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my Maruti 800.MPFI 5speed going to overheat in 5 minute, Temp miter goes to high & radiator sub tank empty same time. Even Engine Oil, coolant just changed it. please help.

By Sukumar on Oct 1, 2009


  • Hi mate, I had a same problem with my car before and this problem can do some serious damage. There could be number of factors for your car to over heat.
    1)Leaking or damaged radiator valve.
    2)Air con unit not functioning properly
    3)Damaged Head Gasket or blown
    4)Radiator leaking.
    5)Blocked pipe lines
    This overheating problem can really do some damage to the engine.
    The best option is to take it to a authorized Maruti workshop and ask them to do a pressure test on the radiator and then they should be able to diagnose the problem. Kindly do this at the earliest possible.
    Thanking you

    Aman Chaswal

    Answer by Aman Chaswal on Oct 1, 2009

  • ur oil and water is getting mixed..... probably this could be the reason for that....
    Answer by Dheeraj on Oct 1, 2009

  • i will tell you what you do better to sell your car and by new maruty swift
    Answer by Shan From Abu Dhabi on Oct 1, 2009

  • Expert Hi,
    The empty auxillary tank Indicates coolent leakage, plese get the vehicle reinspected Call the brakedown service instead of driving in long distance from authorised service center.
    Answer by Shiva Shankar on Oct 2, 2009

  • There is no coolent leakage, Engineer said Alto & 5Speed M800 having same problem and solution is change Head. is it true?
    Answer by Sukumar on Oct 2, 2009

  • Plz answer!
    Answer by Sukumar on Oct 3, 2009

  • Expert Hi,
    Changeing of Cylinder head gasket should solve the problem.Also ensure all hose connections are leakproof.
    Answer by Shiva Shankar on Oct 5, 2009

  • Hi,
    The overheating problem persists in 5 speed,to know more type "Overheating problem in M800 5Speed" in google search you will get many results.
    Wish you goodluck
    Answer by Sridhar Iyer on Oct 6, 2009

  • Thank you all of you! I have solved this problem. Change 1]Head Gasket, 2]Thermostats valve. Steam seal, Engine Oil, coolent, in Rs. 5000.00. Thanks Shiva Sir!
    Answer by Sukumar on Oct 7, 2009

  • I had the same problem with my car last week.I think changing the radiator along with the tuning of MPFI engine,checking all the hoses & connections & ofcourse check the level of Coolant in the tank at the same time.Use only genuine coolant from the authorised shop.
    Answer by Ayanava on Feb 7, 2011

  • hey can any one tell me what is the specification of the radiator of maruti 800 , because iam not gettting it the web ... i need it badly for my project

    Answer by Ashfaq on Jul 13, 2011

  • After routine servicing at 60000km at MSM, Delhi, the coolent started spilling out from storage tank. also sometimes car gets heated upto indicator showing upto mid point and at that time a/c stops working and on checking coolent qty reduces to almost zero in storage tank. shown 3-4 times in MSM, but of no use. What to do?
    Answer by V K Sinha on Sep 13, 2011

  • I m a mechanic,the best solution for this is---change the head gaskit and check is there any lickage of coolent
    Answer by Akshay on Dec 31, 2012

  • My car had the same problem of bowling and emptying of coolant/water.
    I contacted 3 experts and got 3 different expensive solutions (ranging from Rs 800 to Rs 5000) and became confused.
    Then I applied little basic physics.It is as follows:
    If the pressure is less , boiling will occur at lower temperature.
    Any leaking can cause fall in pressure and cause boiling and emptying of coolant.
    I simply removed and cleaned the radiator cap (or lid) well and put it back.
    And now the problem is gone.
    I think that the checking of the radiator cap must be done first.

    Answer by Philip on May 6, 2013

  • helo shiva sir,
    i am purchase 800 5 speed car before one week. on the running way water and coolent oil shouls leaked... then at 3 times the engine will stoped after 5 min engine will on and run.... my nearest technicial says that...this problem leads to engin problem.... i m confusing about that purchase....what is ur opinion...pls......
    Answer by Sijo Skaria on Jun 14, 2013

  • the problem will be faulty thermostat switch,it may function at some time and may not work properly at other times
    give through connection to radiator fan(a/c car-disconnect compressor connection and switch on a/c with fan on)radiator fan will work throughout and the overheating problem will be solved.however this is a temporary method go for definite method like changing thermostat switch(MGP ONLY)
    Answer by JOBIN on Apr 6, 2015

  • hai sir.. i have a maruthi 800 2001 model. white smoke coming from exuast after 2 min from start... i mean in stand by time.... what will be the problm..
    Answer by Manoj on Jun 16, 2016

  • Hi me too a mechanic better u change value stemseal it will better
    Answer by Selvakumar on Aug 21, 2017

  • I have an 800 mpfi 5speed,overheating problem
    Answer by Prem on Mar 28, 2019

  • My car is maruthi 800 5speed already iam change coolant oil but coolant oil is low level problem
    Answer by Ganeshkumar on Jul 9, 2019

  • Answer is 3
    Answer by Pavan on Jul 9, 2019

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