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Omega Owners Forum › Chat › General Discussion Area › Coolant Change - Part 1

(Moderators: Auto Addict, Marks DTM Calib, TheBoy, hotel21, Darth Loo-knee)

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Coolant Change - Part 1 (Read 1948 times)

x25xe

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Posts: 925
Hayes, Middlesex
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Coolant Change - Part 1
05. Aug 2006 at 22:05

Started work on my coolant change today, using Markjay's excellent write up Smiley

Gave the bolts securing the undertray a good soaking in plus gas along with those that fix the radiator cover and went out to buy various bits like hose clips, drain bowl and some of Sainsbury's finest mineral water!

Got back home and removed undertray and radiator cover and located the rad drain tap. All OK so far.

Removed the expansion tank cap and then noted a series of cracks following the neck of the tank. Bu**er!

Pictures show what I mean: (first attempt at posting a pic so hope it works!)

General View:
http://i65.photobucket.com/albums/h207/x20xev/Omega%20Servicing/expansion_full_t...

Close up Front:
http://i65.photobucket.com/albums/h207/x20xev/Omega%20Servicing/expansion_closer...

Close up Rear:
http://i65.photobucket.com/albums/h207/x20xev/Omega%20Servicing/expansion_rear.j...

Full View of Tank (with cat in background!):
http://i65.photobucket.com/albums/h207/x20xev/Omega%20Servicing/expansion_full_v...

So, went to vaux (dealer only ½ mile up the road from me) to get a price. £39 for a tank with sensor and in stock! Why do that have that and not a brake light switch I wonder?

Anyway, I will be fitting a new tank as, whilst I am sure that this one will be OK for a while, I like to do things properly. Will be phoning Autovaux on Monday to fit out their price.

Still, I was going to take the bottle of and use a bottle brush to clean it up - at least I will have a nice shiny new one now I suppose!

1998 2.5 V6 Omega CDX, Leather and Electric Pack!

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x25xe Senior Member Offline Avater removed due to size Posts: 925 Hayes, Middlesex Gender:	Re: Coolant Change - Part 1 Reply #1 - 05. Aug 2006 at 22:12 Sorry peps, used the wrong links from photobucket: Here are the pics now: General View: Close up Front: Close up Rear: Full View of Tank (with cat in background!) Sorry aboyt that!
Back to top	1998 2.5 V6 Omega CDX, Leather and Electric Pack! IP Logged

tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: Coolant Change - Part 1 Reply #2 - 06. Aug 2006 at 11:15 looking good so far x25xe, keep up the good work
Back to top	Do you break V6's as often as TheBoy? Then you need tunnie's towing services, recovery costs are just the humiliation of being towed by 2/3's of an engine IP Logged

x25xe Senior Member Offline Avater removed due to size Posts: 925 Hayes, Middlesex Gender:	Re: Coolant Change - Part 1 Reply #3 - 06. Aug 2006 at 11:17 Cheers. I see that you are making good progress with Project A! Will post up more as work progresses.
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tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: Coolant Change - Part 1 Reply #4 - 06. Aug 2006 at 11:37 i could have finished project A this weekend if i had'nt buggered the brakes!
Back to top	Do you break V6's as often as TheBoy? Then you need tunnie's towing services, recovery costs are just the humiliation of being towed by 2/3's of an engine IP Logged

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Re: Coolant Change - Part 1
Reply #5 - 06. Aug 2006 at 16:26

x25xe wrote on 05. Aug 2006 at 22:05:

Removed the expansion tank cap and then noted a series of cracks following the neck of the tank. Bu**er!

If i am looking at the correct thing.....i think they are mould marks......i got the same on my bottle....if you run a nail over them they stand proud a bit.....and nothing to worry about.

I carnt see anything else in the pics that look like cracks.

Cheers

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x25xe

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Hayes, Middlesex
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Re: Coolant Change - Part 1
Reply #6 - 07. Aug 2006 at 10:09

Thanks for your input TD!

The cracks are around the filler neck on the bottle and the are certinally cracks. You can feel that they are cracks when running a nail across them.

I will be fitting a new bottle for peace of mind apart from anything else. Also, the old expansion tank is somewhat dirty so a new one will save having to clean it up and display my newly replaced coolant off to best effect!

1998 2.5 V6 Omega CDX, Leather and Electric Pack!

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tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: Coolant Change - Part 1 Reply #7 - 07. Aug 2006 at 10:39 i'll inspect my project car closer for this as well.....
Back to top	Do you break V6's as often as TheBoy? Then you need tunnie's towing services, recovery costs are just the humiliation of being towed by 2/3's of an engine IP Logged

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