tangki water loss

[Vincentnwc]

My bmw e60 525i japan spec tangki water lost in week bout a litre. Is it normal? Urgent need help from all sifu. Thanks in advance

 

[sharizat]

u need to go see ur mech and and do the test bro, how bout the engine oil or did it had overheated before this?

 

[gendong]

do a pressure test, and look out for signs of leakages......

 

[Xthree]

My recent experience ... do the pressure test , leaking from expansion tank .

See mechanic , in my case , he just flush out and pour 3 whole bottle of BMW coolant and problem solve . my solution might not solves yours ....

Anyhow do the pressure test bro ... good luck

 

[TheTaj]

I was also losing some water over a week, around 500ml to 1 liter, a bit more if i do some long distance travelling. I've changed my coolant tank, and coolant hoses around late last year. Now no more problem, coolant level remains the same.

I also reminded myself that my '05 523i was already 8 yrs old at the time so might as well do some preventive maintenance before any untoward incident comes.

 

[jarance]

check the thermostat and temperature sensor O-ring as well beside the numbers of water hoses and expansion tank.

Sometime it could be also the radiator cap.

 

[Vincentnwc]

Thanks all for the comment. By the way how to check for the pressure? In my view I think there is no leakage. Now during town driving after a week no lost but outstation lost a bit. Around a few inch of water in the tank. Is it ok?

 

[Herbert]

It is certainly not ok to loss a few inch of water after an outstation drive. There is still leakage somewhere and if I were you, I will be concerned and have it rectified ASAP.

 

[Vincentnwc]

Thanks for the advice.
I will go see the mech ASAP

 

[zack700]

Vincent, same thing happened to me.. Sent to mech for pressure test.. Found that the temperature sensor o-ring was damaged. Replaced and drove like a happy man again.. arty:arty:arty:arty:arty:

 

[Vincentnwc]

My mech says it is due to thermostat no giving good flow any 3 pipe got leak stain. So I will go change it. Will keep u all inform one done. Thanks

 

[siva@e60]

Dear Members,

How about the electrical water pump and thermostat whats the life span as the E60 doesn't have temp gauge to monitor ?

Normally wait until there is water loss system or at certain milage just have it changed to have a piece of mind, my milage is 95k need the sifu's advice on this.

Thank You

Regards,
Siva

 

[Herbert]

Siva,

For preventive maintenance at 95k km, I would replace the electrical water pump,thermostat, expansion tank (including the cap) and the water hoses. Ask Jason to also do a complete flushing of the cooling system.

 

[Duke1316]

Siva,

For preventive maintenance at 95k km, I would replace the electrical water pump,thermostat, expansion tank (including the cap) and the water hoses. Ask Jason to also do a complete flushing of the cooling system.

Dear VP,
How much will it cost to replace all those things, my one now at 89k and i believe it is time to replace bfore it got totally spoilt. Last Q, should I do it with AB or Indy as I live in Penang...

 

[Herbert]

Duke,

You should budget about RM3 k to have the above done at independent workshops or at least double the price if you do it at BMW authorized dealers' workshops.

 

[Duke1316]

VP,

Thanks. Any recommendation independent workshop in Penang?

 

[Herbert]

I am from the Klang valley and hence I can't recommend you any workshops in Penang. You may wish to contact our club's Penang chapter OM Unstopables_7 and I am sure he will be most happy to assist you.

 

[Duke1316]

I am from the Klang valley and hence I can't recommend you any workshops in Penang. You may wish to contact our club's Penang chapter OM Unstopables_7 and I am sure he will be most happy to assist you.

Thanks for the advise VP.. Will contact Unstopables_7 for further direction

 

[Vincentnwc]

Mine problem is the water pump. After change everything ok. Btw I also change thermostat and 3 hose.