MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: gtidel on May 25, 2014, 09:33:25 am

Title: Dirty expansion tank
Post by: gtidel on May 25, 2014, 09:33:25 am

Hi

I changed my expansion tank on my 05 gti because it had brown deposit in it. I then ran the car and checked  the coolant tank and there was more brown stuff in it. the coolant it self is pink is this normal ?

Title: Re: Dirty expansion tank
Post by: bacillus on May 25, 2014, 09:50:29 am

Doesn't sound normal to me!
What antifreeze did it have before, was it VW stuff?

Title: Re: Dirty expansion tank
Post by: gtidel on May 25, 2014, 09:55:46 am

I'm not sure I haven't had the car that long .

Title: Re: Dirty expansion tank
Post by: Legend on May 25, 2014, 10:15:29 am

Is it possibly a case of dried up oil? If so, you should check the radiator incase that's leaking oil. Also check the water pump etcetera if they haven't been done in a service yet.

Title: Re: Dirty expansion tank
Post by: gtidel on May 25, 2014, 11:08:43 am

Just checked brown gunk and its magnetic !!!
 

Title: Re: Dirty expansion tank
Post by: OSB on May 25, 2014, 03:46:46 pm

I wonder if the previous owner had a coolant leak and chucked some 'Radseal' in?

Title: Re: Dirty expansion tank
Post by: 56OctyVRS on May 25, 2014, 04:37:34 pm

Id flush the coolant and put fresh coolant in.

Title: Re: Dirty expansion tank
Post by: callis on May 26, 2014, 10:48:12 am

Change coolent and also change the expansion tank. They cheap and very easy to replace.